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Microstructure,mechanical and thermo-physical properties of Al/Al−27%Si laminated composites 被引量:1
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作者 Zi-ming LI Zhi-yong CAI +5 位作者 Hao YAN Qian HAN Nan CHEN Ri-chu WANG Xiang PENG Chun ZHANG 《Transactions of Nonferrous Metals Society of China》 2025年第5期1394-1405,共12页
Three types of Al/Al−27%Si laminated composites,each containing 22%Si,were fabricated via hot pressing and hot rolling.The microstructures,mechanical properties and thermo-physical properties of these composites were ... Three types of Al/Al−27%Si laminated composites,each containing 22%Si,were fabricated via hot pressing and hot rolling.The microstructures,mechanical properties and thermo-physical properties of these composites were investigated.The results demonstrated that the three laminated composites exhibited similar microstructural features,characterized by well-bonded interfaces between the Al layer and the Al−27%Si alloy layer.The tensile and flexural strengths of the composites were significantly higher than those of both Al−22%Si and Al−27%Si alloys.These strengths increased gradually with decreasing the layer thickness,reaching peak values of 222.5 and 407.4 MPa,respectively.Crack deflection was observed in the cross-sections of the bending fracture surfaces,which contributed to the enhanced strength and toughness.In terms of thermo-physical properties,the thermal conductivity of the composites was lower than that of Al−22%Si and Al−27%Si alloys.The minimum reductions in thermal conductivity were 6.8%and 0.9%for the T3 laminated composite,respectively.Additionally,the coefficient of thermal expansion of the composites was improved,exhibiting varying temperature-dependent behaviors. 展开更多
关键词 electronic packaging material laminated composite high-silicon aluminum alloy mechanical property thermo-physical property
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基于SPSS分析的宝鸡市空气质量变化特征及影响因素
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作者 王旭京 崔莹 靳美娟 《沈阳大学学报(自然科学版)》 2025年第3期218-223,共6页
利用2018-2023年宝鸡市空气质量指数(AQI)与SO_(2)、NO_(2)、PM_(10)、PM_(2.5)、CO和O_(3)的质量浓度数据进行了描述性分析,并建立多元线性回归模型对空气环境质量进行综合评价。结果表明:①宝鸡市的空气质量总体上呈现逐渐改善的趋势... 利用2018-2023年宝鸡市空气质量指数(AQI)与SO_(2)、NO_(2)、PM_(10)、PM_(2.5)、CO和O_(3)的质量浓度数据进行了描述性分析,并建立多元线性回归模型对空气环境质量进行综合评价。结果表明:①宝鸡市的空气质量总体上呈现逐渐改善的趋势;②在各类空气质量等级中,以“良”等级出现频率最高,其次是“轻度污染”,而PM_(2.5)是最主要的污染物;③多元回归分析表明,PM_(2.5)的质量浓度对AQI的影响最为显著。从工业排放、交通管理、能源结构调整等方面提出了有效的治理对策。 展开更多
关键词 空气质量指数 影响因素 回归分析 SPSS(statistical package for the social sciences 社会科学统计软件包) 宝鸡
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Development and Performance Study of High-Performance Electronic Packaging Materials
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作者 Shenglan Fang 《材料科学研究(中英文版)》 2025年第2期1-6,共6页
As electronic devices continue to evolve toward higher power densities,faster speeds,and smaller form factors,the demand for high-performance electronic packaging materials has become increasingly critical.These mater... As electronic devices continue to evolve toward higher power densities,faster speeds,and smaller form factors,the demand for high-performance electronic packaging materials has become increasingly critical.These materials serve as the physical and functional interface between semiconductor components and their operating environment,impacting the overall reliability,thermal management,mechanical protection,and electrical performance of modern electronic systems.This study investigates the development,formulation,and performance evaluation of advanced packaging materials,focusing on polymer-based composites,metal and ceramic matrix systems,and nanomaterial-enhanced formulations.A comprehensive analysis of key performance metrics-including thermal conductivity,electrical insulation,mechanical robustness,and environmental resistance-is presented,alongside strategies for material optimization through interface engineering and processing innovations.Furthermore,the study explores cutting-edge integration technologies such as 3D packaging compatibility,low-temperature co-firing,and high-density interconnects.The findings provide critical insights into the structure-property-processing relationships that define the effectiveness of next-generation packaging materials and offer a roadmap for material selection and system integration in high-reliability electronic applications. 展开更多
关键词 Electronic Packaging Materials Thermal Interface Materials High-Performance Composites NANOMATERIALS Thermal Conductivity 3D Packaging RELIABILITY Polymer Composites Dielectric Properties MICROFABRICATION
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Graphene Oxide and Moringa oleifera Seed Oil Incorporated into Gelatin-Based Films:A Novel Active Food Packaging Material
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作者 María Fernanda Cardona Lunar Ramón Ordoñez +2 位作者 Heidi Fonseca Florido Joaquín Hernández-Fernández Rodrigo Ortega-Toro 《Journal of Renewable Materials》 2025年第2期311-327,共17页
The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable alternatives.This study investigates the incorporation of graphene oxide(GO)and Moringa oleifera seed oil(M... The extensive use of polymeric materials in single-use packaging has driven the need to develop biodegradable alternatives.This study investigates the incorporation of graphene oxide(GO)and Moringa oleifera seed oil(MOSO)into a gelatin matrix to create polymer films and evaluate their potential as active packaging materials.The properties of these films were evaluated using structural,thermal,mechanical,optical,and physicochemical methods to determine their suitability for food packaging applications.The results showed that GO and MOSO were homogeneously dispersed in the gelatin matrix,forming colloidal particles(around 5μm in diameter).The addition of GO increased opacity by approximately 20 times the base value while MOSO affected light transmittance without impacting opacity.Mechanical properties were affected differently,GO acted as a crosslinking agent reducing elongation and increasing tensile strength at break,on the other hand MOSO acted as a plasticizer,making films more plastic increasing elongation a 30%.These effects counteracted each other,and similar behavior was recorded in differential scanning calorimetry.The films exhibited an improved water vapor resistance,which is crucial for food packaging.These findings indicate that the incorporation of GO and MOSO into a gelatin matrix may produce biodegradable polymer films with enhanced properties,suitable for active packaging in the food industry. 展开更多
关键词 Biodegradable packaging graphene oxide Moringa oleifera seed oil mechanical properties thermal stability water vapor resistance food packaging applications
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Mapping Research Trends in Green Packaging:A Bibliometric Review(2000–2023)
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作者 Lyu Jun Bakti Hasan-Basri Normizan Bakar 《Journal of Environmental & Earth Sciences》 2025年第8期101-130,共30页
With over 141 million tons of packaging waste generated globally each year and limited recycling efficiency,packaging pollution has become a pressing environmental issue,driving increased scholarly interest in green p... With over 141 million tons of packaging waste generated globally each year and limited recycling efficiency,packaging pollution has become a pressing environmental issue,driving increased scholarly interest in green packaging.However,existing studies have primarily focused on individual domains,lacking a systematic and comprehensive review,which restricts interdisciplinary integration and obscures overarching trends and gaps.To address this,we conducted a bibliometric analysis of green packaging research using CiteSpace and VOSviewer,drawing on peer-reviewed English-language articles published between 2000 and 2023 in the Web of Science Core Collection.The analysis examined collaboration networks,co-citation patterns,and keyword co-occurrence trends.Results reveal significant growth in publications since 2018,with research spanning environmental science,food technology,and business,alongside increasing interdisciplinary integration.Collaboration networks are particularly strong within China and Malaysia,though international collaboration remains limited,while co-citation analysis highlights high-impact work on material performance,consumer behavior,and supply chain strategies,with life cycle assessment emerging as the most widely applied analytical tool.This study synthesizes the current knowledge framework,identifies key trends and challenges,and outlines future research directions-including consumer payment behavior,corporate sustainability strategies,and the development of innovative packaging materials-providing strategic guidance for advancing green packaging research. 展开更多
关键词 Green Packaging BIBLIOMETRICS CITESPACE VOSviewer VISUALIZATION
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Bio-Composite Films from Carrageenan/Starch Reinforced with Nanocellulose for Active Edible Food Packaging:Development and Optimization
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作者 Mariia Dmitrenko Daniel Pasquini +9 位作者 Marcela Piassi Bernardo Joao Marcelo de Lima Alves Anna Kuzminova Ilnur Dzhakashov Andrey Terentyev Alexander Dyachkov K.S.Joshy Maya Jacob John Sabu Thomas Anastasia Penkova 《Journal of Renewable Materials》 2025年第6期1139-1168,共30页
Petrochemical plastics are widely used for food protection and preservation;however,they exhibit poor biodegradability,resisting natural degradation through physical,chemical,or enzymatic processes.As a sustainable al... Petrochemical plastics are widely used for food protection and preservation;however,they exhibit poor biodegradability,resisting natural degradation through physical,chemical,or enzymatic processes.As a sustainable alternative to conventional plastic packaging,edible films offer effective barriers against moisture,gases,and microbial contamination while being biodegradable,biocompatible,and environmentally friendly.In this study,novel active food packaging materials(in film form)were developed by incorporating starch,carrageenan,nanocellulose(NC),Aloe vera,and hibiscus flower extract.The effects of varying the matrix composition(26.5–73.5 wt.%starch/carrageenan),NC concentration(2.77-17.07 wt.%),and particle type(fibers or crystals)on the film structure and characteristics were analyzed using various methods.Scanning electron microscopy demonstrated good homogeneity and effective dispersion of NC within the blendmatrix.An increased carrageenan content in the filmimproved wettability,moisture absorption,solubility,and water vapor permeability.The mechanical properties of the films were enhanced by NC incorporation and higher carrageenan content.The developed films also exhibited effective UV radiation barriers and biodegradability.Films with low carrageenan content(less than 33.3%)and high NC content(7%,10% crystals or 10%,15% fibers)exhibited optimal properties,including enhanced water resistance,hydrophobicity,and mechanical strength,along with reduced water vapor permeability.However,the high water solubility and moisture absorption(above 55% and 14%,respectively)indicated their unsuitability as packaging materials for food products with wet surfaces and high humidity.The results suggest that these films are well suited for use as edible food packaging for fruits and vegetables. 展开更多
关键词 CARRAGEENAN STARCH NANOCELLULOSE edible film packaging material
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Toxicological and Safety Considerations of Nanocellulose-Containing Packaging Materials
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作者 Lucila M.Curi Maria C.Area Maria E.Vallejos 《Journal of Renewable Materials》 2025年第11期2109-2137,共29页
The global demand for renewable and sustainable non-petroleum-based resources is rapidly increasing.Lignocellulosic biomass is a valuable resource with broad potential for nanocellulose(NC)production.However,limited s... The global demand for renewable and sustainable non-petroleum-based resources is rapidly increasing.Lignocellulosic biomass is a valuable resource with broad potential for nanocellulose(NC)production.However,limited studies are available regarding the potential toxicological impact of NC.We provide an overview of the nanosafety implications associated mainly with nanofibrillated cellulose(CNF)and identify knowledge gaps.For this purpose,we present an analysis of the studies published from 2014 to 2025 in which the authors mention aspects related to toxicity in the context of packaging.We also analyze the main methods used for toxicity evaluations and the main studies about toxicity evaluation using different biomarkers for a broad interpretation.This comprehensive biblio-graphic review highlights the critical need for further research to elucidate the mechanisms fully underlining NC toxicity,mainly due to its nanofibrillar structure.We focus on the cellular responses across different evaluated cell types through in vitro evaluation,always within the context of the dose used,the type of material or its source,and the type of biomarkers used in the assessments.The importance of addressing safety considerations and key knowledge gaps for the responsible use of CNF derived fromlignocellulosic biomass and its bionanocomposites in food packaging is highlighted. 展开更多
关键词 Cytotoxicity studies nanofibrillated cellulose in vitro nanosafety PACKAGING TOXICITY
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Analysis of the effect of temperature and packing method on the quality and oxidative stability of walnuts in storage
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作者 Xuan Ma Chongbo Huang +3 位作者 Chang Zheng Fangyan Long Mandi Zhao Changsheng Liu 《Oil Crop Science》 2025年第3期212-222,共11页
Walnuts are rich in a variety of nutritional components.However,due to their high content of unsaturated fatty acids(UFAs),the quality of walnuts tends to decline during storage,which adversely affects the development... Walnuts are rich in a variety of nutritional components.However,due to their high content of unsaturated fatty acids(UFAs),the quality of walnuts tends to decline during storage,which adversely affects the development of the walnut industry.This study was aimed to investigate the impacts of temperature and packaging methods on the storage quality and oxidative stability of walnuts.The Wen 185 walnut variety was selected,and the physical-chemical and nutritional indexes of walnuts stored for 42 weeks under different temperatures(18℃,4℃,and room temperature)and packaging methods(vacuum light-exposed,vacuum light-proof,vacuum-ra-diation light-exposed,vacuum-radiation light-proof,nitrogen-filled light-exposed,nitrogen-filled light-proof)were measured.The results showed that low temperatures,especially18℃,in combination with vacuum lightproof packaging,could effectively suppress the increase in oxidative stability indicators such as acid value(AV)and peroxide value(PV),and maintain high retention rates of nutritional indicators like tocopherol and phytosterol.This study has elucidated that low temperatures and appropriate packaging methods play the crucial roles in maintaining the quality and oxidative stability of walnuts during storage.It has provided comprehensive and valuable data support and theoretical basis for the scientific storage of walnuts,contributing to the devel-opment of the walnut industry and the guarantee of product quality. 展开更多
关键词 Walnut storage TEMPERATURE Packaging methods QUALITY Oxidative stability
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Materials Crossover Revolution in Textile Technology
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《China Textile》 2025年第3期15-15,共1页
The textile industry has evolved beyond the traditional apparel sector to become a hub for various types of innovation.Textiles have a wide range of applications in various industries.Some textiles can regulate light ... The textile industry has evolved beyond the traditional apparel sector to become a hub for various types of innovation.Textiles have a wide range of applications in various industries.Some textiles can regulate light and temperature within buildings.Other applications include use in automobiles to ensure the driver's seat is both comfortable and safe.Some medical textiles are designed to promote health and wellness.Textiles are also used for certain types of packaging to preserve the freshness of food.Textiles are utilized in many applications. 展开更多
关键词 PACKAGING BUILDINGS medical textiles textile technology automobiles INNOVATION applications regulate light temperature
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Performance Enhancement of Chitosan for Food Packaging:Impact of Additives and Nanotechnology
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作者 Panji Setya Utama Putra Damar Rastri Adhika +1 位作者 Lia Amelia TresnaWulan Asri Suprijadi Suprijadi 《Journal of Renewable Materials》 2025年第6期1043-1070,共28页
The continuous increase in petroleum-based plastic food packaging has led to numerous environmental concerns.One effort to reduce the use of plastic packaging in food is through preservation using biopolymer-based pac... The continuous increase in petroleum-based plastic food packaging has led to numerous environmental concerns.One effort to reduce the use of plastic packaging in food is through preservation using biopolymer-based packaging.Among the many types of biopolymers,chitosan is widely used and researched due to its non-toxic,antimicrobial,and antifungal properties.Chitosan is widely available since it is a compound extracted from seafood waste,especially shrimps and crabs.The biodegradability and biocompatibility of chitosan also showed good potential for various applications.These characteristics and propertiesmake chitosan an attractive biopolymer to be implemented as food packaging in films and coatings.Chitosan has been tested in maintaining and increasing the shelf life of food,especially seafood such as fish and shrimp,and post-harvest products such as fruits and vegetables.In addition to its various advantages,the properties and characteristics of chitosan need to be improved to produce optimal preservation.The properties and characteristics of chitosan are improved by adding various types of additive materials such as biopolymers,plant extracts,essential oils,and metal nanoparticles.Research shows that material additives and nanotechnology can improve the quality of chitosan-based food packaging for various types of food by enhancing mechanical properties,thermal stability,antimicrobial activity,and antioxidant activity.This review provides a perspective on the recent development and properties enhancement of chitosan composite with additives and nanotechnology,as well as this material’s challenges and prospects as food packaging. 展开更多
关键词 BIOPOLYMER CHITOSAN essential oil plant extract metal nanoparticles food packaging NANOTECHNOLOGY
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2025 China Daily Chemical Industry Forum(15th) & 2025 China International Premium Exhibition for Personal Care Ingredients, Packaging & Machinery(IPE) Wraps Up Successfully
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作者 The editorial office 《China Detergent & Cosmetics》 2025年第4期86-88,共3页
The 2025(15th)China Daily Chemical Industry Forum(CDCIF 2025)and its concurrent event,the 2025 China International Premium Exhibition for Personal Care Ingredients,Packaging&Machinery(IPE 2025)concluded successful... The 2025(15th)China Daily Chemical Industry Forum(CDCIF 2025)and its concurrent event,the 2025 China International Premium Exhibition for Personal Care Ingredients,Packaging&Machinery(IPE 2025)concluded successfully in Guangzhou from September 22nd to 24th.Hosted by the China Research Institute of Daily Chemical(RIDCI),and organized by the China Information Center of Daily Chemical Industry and Productivity Promotion Center of Surfactant and Detergent,the event gathered nearly 600 representatives from government departments,industry associations,and leading enterprises. 展开更多
关键词 Personal Care Ingredients China International Premium Exhibition PACKAGING Guangzhou productivity promotion MACHINERY Success
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A novel BaEVRless-LV packaging system for the production of lentiviral vectors for clinical-grade CAR-NK cell manufacturing
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作者 Yinyin Zhang Minghuan Zhang +5 位作者 Mengyuan Li Lihong Zong Qian Ye Wen Lei Wenhai Deng Wenbin Qian 《Cancer Biology & Medicine》 2025年第2期137-143,共7页
Chimeric antigen receptor natural killer(CAR-NK)cell therapy is an alternative immunotherapy that provides robust tumor-eliminating effects without inducing life-threatening toxicities and graft-versus-host disease.CA... Chimeric antigen receptor natural killer(CAR-NK)cell therapy is an alternative immunotherapy that provides robust tumor-eliminating effects without inducing life-threatening toxicities and graft-versus-host disease.CAR-NK cell therapy has enabled the development of“off-the-shelf”products that bypass the lengthy and expensive cell manufacturing process1. 展开更多
关键词 LENTIVIRAL packaging VECTORS alternative immunotherapy chimeric antigen receptor natural system cell manufacturing process NOVEL
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Sustainable Egg Packaging Waste Biocomposites Derived from Recycled Wood Fibers and Fungal Filaments
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作者 Ilze Irbe Laura Andze Inese Filipova 《Journal of Renewable Materials》 2025年第11期2139-2154,共16页
Growing environmental concerns and the need for sustainable alternatives to synthetic materials have led to increased interest in bio-based composites.This study investigates the development and characterization of su... Growing environmental concerns and the need for sustainable alternatives to synthetic materials have led to increased interest in bio-based composites.This study investigates the development and characterization of sustainable egg packaging waste(EPW)biocomposites derived from recycled wood fibers and fungal mycelium filaments as a natural binder.Three formulations were prepared using EPW as the primary substrate,with and without the addition of hemp shives and sawdust as co-substrates.The composites were evaluated for granulometry,density,mechanical strength,hygroscopic behavior,thermal conductivity,and fire performance using cone calorimetry.Biocomposites,composed exclusively of egg packaging waste,exhibited favorable fire resistance,lower total heat release(THR)and total smoke release(TSR),extended time to ignition(TTI),reduced hygroscopicity,and higher flexural strength.Biocomposites,containing hemp shives,demonstrated improved compressive strength and thermal insulation but showed weaker fire resistance.Biocomposites,incorporating sawdust,showed intermediate properties with the longest flameout time(TTF)and highest heat release values.Overall,the results demonstrate that EPW-based biocomposites can be tailored through substrate composition to achieve desirable combinations of mechanical,thermal,and fire-retardant properties,highlighting their potential as sustainable alternatives to conventional syntheticmaterials in building and packaging applications. 展开更多
关键词 Egg packaging waste fungal mycelium BIOCOMPOSITES mechanical properties thermal conductivity fire resistance
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Plant-Based Cellulose Nanopapers with Applications for Packaging,Protective Films and Energy Devices
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作者 Verónica L.Mucci Mirta I.Aranguren 《Journal of Renewable Materials》 2025年第8期1491-1519,共29页
Interest in the use of cellulose nanomaterial’s continues to grow,both in research and industry,not only due to the abundance of raw materials,low toxicity and sustainability,but also due to the attractive physical a... Interest in the use of cellulose nanomaterial’s continues to grow,both in research and industry,not only due to the abundance of raw materials,low toxicity and sustainability,but also due to the attractive physical and chemical properties that make nanocelluloses useful for a wide range of end-use applications.Among the large number of potential uses,and nanocelluloses modification and processing strategies,the chosen topic of this review focuses exclusively on plant-derived cellulose microfibers/nanofibers(CNF)and cellulose nanocrystals(CNC)processed into 2D structures—nanopapers and nanofilms—fabricated as self-standing films or applied as coatings.The end uses considered are:combinationwith standard papers and cardboards for packaging,mendingmaterial for the conservation and protection of cellulosic heritage artifacts,and component-parts of complex designs of functional devices for energy harvesting and storage.In these contexts,nanocelluloses provide high mechanical and ecofriendly properties,transparency and tunable haze,as well as flexibility/bendability in the resulting films.All these characteristics make them extremely attractive to a market seeking for sustainable,light weight and low cost raw materials for the production of goods.General perspectives on the current advantages and disadvantages of using CNF and CNC in the selected areas are also reviewed. 展开更多
关键词 NANOCELLULOSE cellulose nanofibers cellulose nanocrystals PACKAGING energy storage energy harvesting heritage paper protection
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Recent Advancements in Nanocomposites-Based Antibiofilm Food Packaging
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作者 Bandana Padhan Rajkumar Patel +4 位作者 Priyanka Bhowmik Ananya Roy Joyjyoti Das Yong Yu Madhumita Patel 《Journal of Polymer Materials》 2025年第2期411-433,共23页
The food industry prioritizes food safety throughout the entire production process.This involves closely monitoring and evaluating all potential sources of biological or chemical contamination,starting from entering r... The food industry prioritizes food safety throughout the entire production process.This involves closely monitoring and evaluating all potential sources of biological or chemical contamination,starting from entering raw materials into the production chain and continuing to the final product.Biofilms on food surfaces or containers can harbor dangerous pathogens,such as Listeria monocytogenes.Therefore,it is essential to continuously manage microbial contamination on food contact surfaces to prevent foodborne infections.Recently,there has been increasing interest in using nanomaterials as surface coatings with antimicrobial properties in the food industry,especially since traditional disinfectants or antibiotics may contribute to developing resistance.However,the use of antibiofilm materials for long-term food storage remains underexplored,and there is a notable lack of focused reviews on nanomaterialbased antibiofilm coatings specifically for long-term food preservation.This review aims to consolidate recently reported nanoparticle-based antibiofilm food packaging materials.We discuss the effectiveness of various metal and metal oxide nanoparticles and biopolymer nanocomposites in combating biofilms.Additionally,we highlight the growing importance of biodegradable nanocomposite materials for antibiofilm food packaging.Furthermore,we explore the mechanisms of action,processing methods,and safety aspects of these nanomaterials being developed for food packaging applications. 展开更多
关键词 ANTIBIOFILM metal nanoparticles metal oxide nanoparticle biopolymer nanocomposites food packaging
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Advances in micro/nanoparticle-enhanced Sn-based composite solders
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作者 Kaiming Liang Wenqiang Wan +4 位作者 Yifei Li Xin Zhang Xiangdong Ding Peng He Shuye Zhang 《International Journal of Minerals,Metallurgy and Materials》 2025年第9期2043-2064,共22页
Sn-based solder is a widely used interconnection material in the field of electronic packaging;however,the performance requirements for these solders are becoming increasingly demanding owing to the rapid development ... Sn-based solder is a widely used interconnection material in the field of electronic packaging;however,the performance requirements for these solders are becoming increasingly demanding owing to the rapid development in this area.In recent years,the addition of micro/nanoreinforcement phases to Sn-based solders has provided a solution to improve the intrinsic properties of the solders.This paper reviews the progress in Sn-based micro/nanoreinforced composite solders over the past decade.The types of reinforcement particles,preparation methods of the composite solders,and strengthening effects on the microstructure,wettability,melting point,mechanical properties,and corrosion resistance under different particle-addition levels are discussed and summarized.The mechanisms of performance enhancement are summarized based on material-strengthening effects such as grain refinement and second-phase dispersion strengthening.In addition,we discuss the current shortcomings of such composite solders and possible future improvements,thereby establishing a theoretical foundation for the future development of Sn-based solders. 展开更多
关键词 Sn-based composite solder micro/nanoparticles properties electronic packaging microstructure corrosion resistance
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Mechanically Robust and Degradable Poly(urethane-urea) Plastics Derived from Tannic Acid and Castor Oil for Enhanced Fruit Preservation
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作者 Hong-Yu Pan Xu Fang +3 位作者 Yi-Xuan Li Si-Heng Li Xiang Li Jun-Qi Sun 《Chinese Journal of Polymer Science》 2025年第3期447-456,共10页
Traditional packaging plastics derived from fossil fuels for perishable foods have caused severe environmental pollution and resource depletion.To promote sustainable development and reduce wastage of perishable produ... Traditional packaging plastics derived from fossil fuels for perishable foods have caused severe environmental pollution and resource depletion.To promote sustainable development and reduce wastage of perishable products,there is a significant challenge in developing biobased packaging plastics that offer excellent preservation,satisfactory mechanical performance,and inherent degradability.In this study,poly(urethane-urea)(PUU)plastics are fabricated using a one-pot polyaddition reaction involving castor oil(CO),tannic acid(TA),lysine-derived ethyl 2,6-diisocyanatohexanoate(LDI),and H2O.The resulting PUU plastics demonstrate a high breaking strength of about 32.7 MPa and a strain at break of ca.102%.Due to the reversibility of hydrogen bonds,PUU plastics can be easily shaped into various forms.They are non-cytotoxic and suitable for food packaging.With a high TA content of ca.38.2 wt%,PUU plastics exhibit excellent antioxidant capacity.Consequently,PUU plastics show outstanding freshness preservation performance,extending the shelf life of cherry tomatoes and winter jujubes for at least 8 days at room temperature.Importantly,PUU plastics can autonomously degrade into non-toxic substances within ca.298 days when buried in soil. 展开更多
关键词 Bio-based plastics Degradable plastics Food packaging plastics Materials science
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Active food packaging:latest development trends and future prospects
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作者 Jian Ju 《Food and Health》 2025年第2期1-2,共2页
With the growing demands for food safety,quality,and environmental protection,active food packaging is playing an increasingly vital role in the food industry.Traditional food packaging primarily protects products and... With the growing demands for food safety,quality,and environmental protection,active food packaging is playing an increasingly vital role in the food industry.Traditional food packaging primarily protects products and facilitates transportation.Active food packaging,however,not only fulfills these fundamental functions but also actively interacts with the food or its environment to extend shelf life and enhance food safety.From current research advancements and market applications,active food packaging demonstrates the following prominent development trends. 展开更多
关键词 ACTIVE PACKAGING primarily
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Anchoring sulfur migration to mitigate Kirkendall voids in nano-twinned copper interconnections for robust and reliable packaging
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作者 Zicheng Sa Shang Wang +6 位作者 He Zhang Jiayun Feng Haozhe Li Jingxuan Ma Xudong Liu Qing Sun Yanhong Tian 《Journal of Materials Science & Technology》 2025年第27期106-119,共14页
Nano-twinned copper(nt-Cu),with a preferred orientation,is highly promising as interconnect materials in high-density advanced packaging due to its considerable mechanical strength,excellent electrical conductivity,an... Nano-twinned copper(nt-Cu),with a preferred orientation,is highly promising as interconnect materials in high-density advanced packaging due to its considerable mechanical strength,excellent electrical conductivity,and resistance to thermal migration.However,its application is impeded by sulfur-containing byproducts from the electroplating process,exacerbating the formation of Kirkendall voids within solder joints during thermal aging.Herein,through the incorporation of Zinc(Zn)into the nt-Cu layer,we develop a nt-Cu/Zn composite structure.Our findings provide the first definitive confirmation of the mechanism by which sulfur atoms migrate to the Cu_(3)Sn/nt-Cu interface through interstitial diffusion,thereby reducing the activation energy for vacancy formation.We further demonstrate that Zn effectively an-choring sulfur atoms,forming ZnS within the nt-Cu layer during heat treatment,which increases the vacancy formation energy and inhibits the development of Kirkendall voids.Remarkably,no Kirkendall voids are observed in the modified interconnects even after prolonged aging at 150℃ for 1000 h.The nt-Cu/Zn composite metallization layers significantly decrease the growth rate of interfacial intermetallic compounds by 33.6% and enhance the shear strength of solder interconnections to 228.9%.This research underscores the potential of nt-Cu in advanced electronic packaging,offering new pathways for improving the power density and reliability of electronic devices. 展开更多
关键词 Nano-twinned copper Electroplating Interconnections Kirkendall voids Advanced packaging
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Pressure Sensors Based on the Third-Generation Semiconductor Silicon Carbide:A Comprehensive Review
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作者 Xudong Fang Chen Wu +3 位作者 Bian Tian Libo Zhao Xueyong Wei Zhuangde Jiang 《Engineering》 2025年第9期183-203,共21页
Microelectromechanical system(MEMS)high-temperature pressure sensors are widely used in aerospace,petrochemical industries,automotive electronics,and other fields owing to their advantages of miniaturization,lightweig... Microelectromechanical system(MEMS)high-temperature pressure sensors are widely used in aerospace,petrochemical industries,automotive electronics,and other fields owing to their advantages of miniaturization,lightweight design,simplified signal processing,and high accuracy.In recent years,advances in semiconductor material growth technology and intelligent equipment operation have significantly increased interest in high-temperature pressure sensors based on the third-generation semiconductor silicon carbide(SiC).This review examines the material properties of SiC single crystals and discusses several technologies influencing the performance of SiC pressure sensors,including the piezoresistive effect,ohmic contact,etching processes,and packaging methodologies.Additionally,it explores future research directions in the field.The review highlights the importance of increasing operating temperatures and advancing sensor integration as critical trends for future SiC high-temperature pressure sensor research and applications. 展开更多
关键词 Silicon carbide Pressure sensor Extreme environment Etching and packaging Ohmic contact
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