摘要
针对现有凝胶改性织物制备工艺复杂、凝胶含量难以精确调控的问题,采用引发剂-单体分步热干燥制备凝胶改性织物,并研究了[2-(甲基丙烯酰基氧基)乙基]二甲基-(3-磺酸丙基)氢氧化铵(DMAPS)单体对改性织物的网孔结构、透气性能、溶胀行为及力学性能的影响规律。结果表明:当DMAPS浓度小于300 mmol/L时,改性织物保持原有的网孔结构和高的透气性能;而DMAPS浓度从0 mmol/L增加至500 mmol/L时,改性织物的拉伸断裂强力从21.5 N显著提升83.2 N,耐磨次数从30次增加至1100次,表明单体用量的增加显著增强改性织物的力学性能。此外,随着DMAPS浓度增加,改性织物在盐水中的溶胀率逐渐提升。研究结果可为改性织物在柔性可穿戴汗液传感器及多功能纺织品等领域的应用提供参考。
Cotton fabrics,as a natural textile material,are widely sourced and inexpensive,occupying an important position in the textile field.However,with the deep integration and development of modern technology and smart textiles,the performance requirements for cotton fabrics have gradually shifted from initial economic practicality to functional diversification.Hydrogel materials are highly absorbent porous materials with a three-dimensional network structure formed by one or more polymer molecules through physical or chemical crosslinking.Due to their diverse chemical compositions and polymeric topological structures,hydrogels exhibit a rich array of functional properties,offering extensive application potential in fields such as agriculture,environmental governance,healthcare,and daily necessities.For example,zwitterionic hydrogels contain oppositely charged ionic groups,often responding to stimuli such as temperature and salt,and demonstrating high hydration,which prevents the adhesion of bacteria,proteins,and other substances to the material surface.They show promising application prospects in many fields such as sensors,antifouling coatings,gel electrolytes,and membrane separation materials.By compounding cotton fabrics with PDMAPS hydrogels,the singularity of cotton fabrics'performance will be improved,endowing them with the properties of PDMAPS hydrogels and broadening their range of applications.Currently,hydrogels are mainly compounded with fabrics through methods such as immersion,graft modification,and lamination.The preparation process often involves complex surface treatments like chemical graft modification,making it difficult to apply on a large scale.In addition,it is challenging to precisely control the content of functional components during the preparation process,which can easily lead to the destruction of the fabrics'original structure and result in an imbalance between the structure and performance of the modified fabrics.Therefore,it is of great significance to achieve precise control of functional component content by simple method to obtain gel-modified fabrics with excellent properties and wide applications.
作者
张培健
杨倩
李尚梅
欧阳聪
蒲玉婕
钱晨
ZHANG Peijian;YANG Qian;LI Shangmei;OUYANG Cong;PU Yujie;QIAN Chen(School of Materials Science and Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《现代纺织技术》
北大核心
2025年第12期57-65,共9页
Advanced Textile Technology
基金
国家自然科学基金项目(52103150)
浙江省自然科学基金项目(LQ22E030012)
浙江理工大学优秀研究生学位论文培育基金项目(LW-YP2024029)
浙江理工大学2023年国家级大学生创新创业训练项目(202310338077)。
关键词
PDMAPS
棉织物
改性方法
反聚电解质效应
力学性能
PDMAPS
cotton fabrics
modification methods
anti-polyelectrolyte effect
mechanical properties
