Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that...Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that is highly consumed in reinforced composites for its superior mechanical strength. As opposed to that, flax obtained from flax stalks can be used as an alternative reinforcing material with synthetic fibers to minimize manmade fiber consumption. Hence, this research work addresses a few flax/glass-reinforced hybrid composites by using a thermoset polyester matrix. Here, six categories of samples are made, like neat flax, neat glass, and flax/glass fabric reinforced hybrid composite, followed by different stacking layer sequences and hand layout techniques during processing. Afterwards, the mechanical behavior, thermal stability, morphological behavior, and water absorption of hybrid samples were investigated. Among the developed samples, neat glass (NG) composite exhibits superior mechanical properties, while neat flax (NF) shows the lowest result. It is apparent that the mechanical properties and thermal stability of hybrid samples are in between NF and NG because, by adding glass with flax fabric, the strength of hybrid samples is increased. Moreover, it is noticeable that, due to multiple stacking layers of flax and glass, hybrid 3 and hybrid 4 show better strength than consecutive single stacking layers in hybrid 1 and hybrid 2. Among all hybrid composites, the H4 shows comparatively better mechanical and thermal properties due to having the glass layers on the outermost surface. In summary, this research work demonstrated the feasibility of flax fabric with glass fabric as a reinforced hybrid composite that can be used in automobile inner bodies, household furnishing, and home interior decoration.展开更多
Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that...Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that is highly consumed in reinforced composites for its superior mechanical strength. As opposed to that, flax obtained from flax stalks can be used as an alternative reinforcing material with synthetic fibers to minimize manmade fiber consumption. Hence, this research work addresses a few flax/glass-reinforced hybrid composites by using a thermoset polyester matrix. Here, six categories of samples are made, like neat flax, neat glass, and flax/glass fabric reinforced hybrid composite, followed by different stacking layer sequences and hand layout techniques during processing. Afterwards, the mechanical behavior, thermal stability, morphological behavior, and water absorption of hybrid samples were investigated. Among the developed samples, neat glass (NG) composite exhibits superior mechanical properties, while neat flax (NF) shows the lowest result. It is apparent that the mechanical properties and thermal stability of hybrid samples are in between NF and NG because, by adding glass with flax fabric, the strength of hybrid samples is increased. Moreover, it is noticeable that, due to multiple stacking layers of flax and glass, hybrid 3 and hybrid 4 show better strength than consecutive single stacking layers in hybrid 1 and hybrid 2. Among all hybrid composites, the H4 shows comparatively better mechanical and thermal properties due to having the glass layers on the outermost surface. In summary, this research work demonstrated the feasibility of flax fabric with glass fabric as a reinforced hybrid composite that can be used in automobile inner bodies, household furnishing, and home interior decoration.展开更多
Needleless electrospinning is a versatile method to produce nanofibers.In particular,the rotary version of this technique has enjoyed widespread use because there is no need to clean the spinneret.The rotation speed i...Needleless electrospinning is a versatile method to produce nanofibers.In particular,the rotary version of this technique has enjoyed widespread use because there is no need to clean the spinneret.The rotation speed is limited by the potential deviation of the jet due to the centrifugal force.Other limitations are due to the fast volatilization of the solvent from the opened spinning system.In order to overcome these drawbacks,here a novel reciprocating system based on a moving spinning-plate is proposed.The spinning process is implemented in a half-closed system with the spinning-plate immersed in the solution tank.When the immersed spinning-plate moves up from the solution tank,multiple jets are ejected from the droplets on the tips of the spinning-plate under the effect of an electric field force.The morphology of the obtained nanofibers has been analyzed by scanning electron microscopy.The results indicated that the obtained fibers are uniform in structures and small in diameters.Both issues of needle clogging and intense solvent evaporation can be mitigated using this alternate approach.展开更多
Biomass-derived residue carbonization has been an important issue for"carbon fixation"and"zero emission",and the carbonized products have multiple application potentials.However,there have been no ...Biomass-derived residue carbonization has been an important issue for"carbon fixation"and"zero emission",and the carbonized products have multiple application potentials.However,there have been no specific research to study the differences in macro-and micro-morphology,electrical properties and many other aspects of the products obtained from carbonization of pure cellulose,pure lignin or their complex,lignocellulose.In this work,lignocellulose with cellulose to lignin mass ratio of 10:1 is obtained using p-toluenesulfonic acid hydrolysis followed by homogenization process at a controlled condition.Then,carbon heterostructure with fibers and sheets(CH-10)are obtained by pyrolysis at 1500℃.Detailed results imply that the fiber-like carbon structure possesses high crystallinity and low defect density,coming from carbonization of the cellulose content in lignocellulose(LC)nanofibers.Correspondingly,the graphite-like carbon sheet with high defect density and low crystallinity comes from carbonization of the lignin content in LCs.Further investigation indicates CH-10 possesses enhanced polarization and moderate impedance matching which makes it an ideal candidate for electromagnetic wave(EMW)absorption.CH-10 exhibits an excellent EMW absorption performance with a minimum RL value of-50.05 dB and a broadest absorption bandwidth of 4.16 GHz at a coating thickness as thin as 1.3 mm.展开更多
The aim of this article was to express the importance of this projected work in the field of present competitive textile-world as fabric manufacturing industries are competing with each other to be unique and aristocr...The aim of this article was to express the importance of this projected work in the field of present competitive textile-world as fabric manufacturing industries are competing with each other to be unique and aristocrat with their products for attaining customer’s attention and increasing their significance to others. To be superior in market, research is the first priority in this perspective competing field. Industries are producing a wide variety of products with some very good comfort properties in fabrics. Due to achieving this, different properties like construction, weave, internal structure, use of variety of yarn, inner-structural changes are brought in fabrics. The more an industry is advanced with its products, the more it will get market value which is very important. Market research in this field is fundamental prior to going for production. An experimental study may be applied in the market on various products with a view to attaining a good annual turnover with production and manufactures. All these parameters like development, growth, market values etc. are strongly dependent on the analytical and research activities of a group. Considering all, analysis on a fabric and its properties is very much fundament and important.展开更多
The co-location Spring Shows, including Intertextile Shanghai Apparel Fabrics - Spring Edition, Yarn Expo Spring, PH Value and China International Fashion Fair （CHIC）, shined in Shanghai this March, bringing apparel...The co-location Spring Shows, including Intertextile Shanghai Apparel Fabrics - Spring Edition, Yarn Expo Spring, PH Value and China International Fashion Fair （CHIC）, shined in Shanghai this March, bringing apparel fabrics, yarns and fibers, knitwear and other fashion garments under one roof. Taking this good opportunity, Xiao Lan, Teacher of College of Textiles, Donghua Universily, organized the overseas students to altend the show and asked them to write visit reports. Though the same show they visited, different perspectives and focuses were expressed through reports. The editor of China Textile selected four of them as a representative to share with the readers.展开更多
文摘Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that is highly consumed in reinforced composites for its superior mechanical strength. As opposed to that, flax obtained from flax stalks can be used as an alternative reinforcing material with synthetic fibers to minimize manmade fiber consumption. Hence, this research work addresses a few flax/glass-reinforced hybrid composites by using a thermoset polyester matrix. Here, six categories of samples are made, like neat flax, neat glass, and flax/glass fabric reinforced hybrid composite, followed by different stacking layer sequences and hand layout techniques during processing. Afterwards, the mechanical behavior, thermal stability, morphological behavior, and water absorption of hybrid samples were investigated. Among the developed samples, neat glass (NG) composite exhibits superior mechanical properties, while neat flax (NF) shows the lowest result. It is apparent that the mechanical properties and thermal stability of hybrid samples are in between NF and NG because, by adding glass with flax fabric, the strength of hybrid samples is increased. Moreover, it is noticeable that, due to multiple stacking layers of flax and glass, hybrid 3 and hybrid 4 show better strength than consecutive single stacking layers in hybrid 1 and hybrid 2. Among all hybrid composites, the H4 shows comparatively better mechanical and thermal properties due to having the glass layers on the outermost surface. In summary, this research work demonstrated the feasibility of flax fabric with glass fabric as a reinforced hybrid composite that can be used in automobile inner bodies, household furnishing, and home interior decoration.
文摘Synthetic reinforced composites affect the environment adversely and have become a global concern, causing increased natural composite demand for sustainability and cost effectiveness. Glass is a popular material that is highly consumed in reinforced composites for its superior mechanical strength. As opposed to that, flax obtained from flax stalks can be used as an alternative reinforcing material with synthetic fibers to minimize manmade fiber consumption. Hence, this research work addresses a few flax/glass-reinforced hybrid composites by using a thermoset polyester matrix. Here, six categories of samples are made, like neat flax, neat glass, and flax/glass fabric reinforced hybrid composite, followed by different stacking layer sequences and hand layout techniques during processing. Afterwards, the mechanical behavior, thermal stability, morphological behavior, and water absorption of hybrid samples were investigated. Among the developed samples, neat glass (NG) composite exhibits superior mechanical properties, while neat flax (NF) shows the lowest result. It is apparent that the mechanical properties and thermal stability of hybrid samples are in between NF and NG because, by adding glass with flax fabric, the strength of hybrid samples is increased. Moreover, it is noticeable that, due to multiple stacking layers of flax and glass, hybrid 3 and hybrid 4 show better strength than consecutive single stacking layers in hybrid 1 and hybrid 2. Among all hybrid composites, the H4 shows comparatively better mechanical and thermal properties due to having the glass layers on the outermost surface. In summary, this research work demonstrated the feasibility of flax fabric with glass fabric as a reinforced hybrid composite that can be used in automobile inner bodies, household furnishing, and home interior decoration.
基金The work is supported by Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),National Natural Science Foundation of China under Grant No.11372205.
文摘Needleless electrospinning is a versatile method to produce nanofibers.In particular,the rotary version of this technique has enjoyed widespread use because there is no need to clean the spinneret.The rotation speed is limited by the potential deviation of the jet due to the centrifugal force.Other limitations are due to the fast volatilization of the solvent from the opened spinning system.In order to overcome these drawbacks,here a novel reciprocating system based on a moving spinning-plate is proposed.The spinning process is implemented in a half-closed system with the spinning-plate immersed in the solution tank.When the immersed spinning-plate moves up from the solution tank,multiple jets are ejected from the droplets on the tips of the spinning-plate under the effect of an electric field force.The morphology of the obtained nanofibers has been analyzed by scanning electron microscopy.The results indicated that the obtained fibers are uniform in structures and small in diameters.Both issues of needle clogging and intense solvent evaporation can be mitigated using this alternate approach.
基金supported by funding from the National Natural Science Foundation of China(31770609,31570552)Jiangsu Agricultural Science and Technology Independent Innovation Fund(CX(20)3041)。
文摘Biomass-derived residue carbonization has been an important issue for"carbon fixation"and"zero emission",and the carbonized products have multiple application potentials.However,there have been no specific research to study the differences in macro-and micro-morphology,electrical properties and many other aspects of the products obtained from carbonization of pure cellulose,pure lignin or their complex,lignocellulose.In this work,lignocellulose with cellulose to lignin mass ratio of 10:1 is obtained using p-toluenesulfonic acid hydrolysis followed by homogenization process at a controlled condition.Then,carbon heterostructure with fibers and sheets(CH-10)are obtained by pyrolysis at 1500℃.Detailed results imply that the fiber-like carbon structure possesses high crystallinity and low defect density,coming from carbonization of the cellulose content in lignocellulose(LC)nanofibers.Correspondingly,the graphite-like carbon sheet with high defect density and low crystallinity comes from carbonization of the lignin content in LCs.Further investigation indicates CH-10 possesses enhanced polarization and moderate impedance matching which makes it an ideal candidate for electromagnetic wave(EMW)absorption.CH-10 exhibits an excellent EMW absorption performance with a minimum RL value of-50.05 dB and a broadest absorption bandwidth of 4.16 GHz at a coating thickness as thin as 1.3 mm.
文摘The aim of this article was to express the importance of this projected work in the field of present competitive textile-world as fabric manufacturing industries are competing with each other to be unique and aristocrat with their products for attaining customer’s attention and increasing their significance to others. To be superior in market, research is the first priority in this perspective competing field. Industries are producing a wide variety of products with some very good comfort properties in fabrics. Due to achieving this, different properties like construction, weave, internal structure, use of variety of yarn, inner-structural changes are brought in fabrics. The more an industry is advanced with its products, the more it will get market value which is very important. Market research in this field is fundamental prior to going for production. An experimental study may be applied in the market on various products with a view to attaining a good annual turnover with production and manufactures. All these parameters like development, growth, market values etc. are strongly dependent on the analytical and research activities of a group. Considering all, analysis on a fabric and its properties is very much fundament and important.
文摘The co-location Spring Shows, including Intertextile Shanghai Apparel Fabrics - Spring Edition, Yarn Expo Spring, PH Value and China International Fashion Fair （CHIC）, shined in Shanghai this March, bringing apparel fabrics, yarns and fibers, knitwear and other fashion garments under one roof. Taking this good opportunity, Xiao Lan, Teacher of College of Textiles, Donghua Universily, organized the overseas students to altend the show and asked them to write visit reports. Though the same show they visited, different perspectives and focuses were expressed through reports. The editor of China Textile selected four of them as a representative to share with the readers.
