长链烷基改性有机硅防水乳液的制备及应用  

Preparation and Application of Long-chain Alkyl Modified Silicone Waterproof Emulsion

作　　者：任文君 陈华虎 蔡英[1,2,3] 张佳文[1,2,3] 易玲敏[1,2,3] REN Wen-jun;CHEN Hua-hu;CAI Ying;ZHANG Jia-wen;YI Ling-min(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018;Engineering Research Center for Eco-dyeing and Finishing of Textiles,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018;Key Laboratory of Advanced Textile Materials and Preparation Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),浙江杭州310018 [2]浙江理工大学生态染整技术教育部工程研究中心,浙江杭州310018 [3]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《纺织科学与工程学报》2024年第3期26-32,共7页Journal of Textile Science & Engineering

基　　金：国家自然科学基金项目(22078305、22308334);浙江省自然科学基金项目(LQ22B060014)。

摘　　要：为解决目前含氟防水整理剂生物毒性及防水耐久性差等问题,制备了一种无氟环保型有机硅防水整理剂。通过将乙烯基引入有机硅大分子中,得到含双键的有机硅种子乳液,并与长链烷基甲基丙烯酸十八酯(SMA)等单体进行细乳液共聚,制备了不同有机硅含量的乳液,并将其整理到棉织物上。研究优化了乳液制备条件,考察了乳胶膜的表面能,以及整理前后棉织物的防水性能、服用性能。结果表明:当有机硅质量分数为6%时,与丙烯酸酯等单体共聚得到稳定的乳液,乳胶膜表面能最低达18.90 mN·m^(-1);将其整理在棉织物表面可形成超疏水结构,静态接触角可达151.8±0.3°,具有良好的自清洁效果,防水等级可达4~5级;经20次水洗后仍能保持较好的防水性能,50次反复摩擦后仍具有超疏水性能。In order to solve the problems of biological toxicity and poor waterproof durability of fluorine-containing waterproof agent,a fluorine-free and eco-friendly silicone waterproof agent was prepared.Silicone seed emulsions with double bonds were obtained by introducing vinyl into silicone macromolecules.The obtained emulsion was copolymerized with long-chain alkyl stearyl methacrylate(SMA)and other monomers,and the emulsions with different silicon contents were prepared for cotton fabric finishing.In this study,the emulsion preparation conditions were optimized and the surface energy of latex film was examined as well as the waterproof property and wearability of cotton fabric before and after finishing.The results indicated that when the mass fraction of silicon was 6%,the emulsion achieved by copolymerizing with acrylate monomer was stable and the surface energy of emulsion film reached 18.90 mN·m^(-1)at the minimum.The finishing of emulsion on the surface of cotton fabric could form an super-hydrophobic structure,the static contact angle could reach 151.8±0.3°with good self-cleaning property,and the waterproof level could reach 4~5 level.It could still maintain better waterproof property after 20 times of washing and super-hydrophobic property after 50 times of repeated friction.

关 键 词：无氟防水剂 有机硅 超疏水 耐水洗 耐摩擦 

分 类 号：TS195.25[轻工技术与工程—纺织化学与染整工程]