超疏水抗紫外日间被动辐射制冷多孔涂层织物的制备及性能  

Preparation and properties of superhydrophobic anti-ultraviolet porous coated fabricsfor passive daytime radiativecooling

作　　者：侯艺 张佳文[1,2,3] 蔡英[1,2,3] 易玲敏[1,2,3] HOU Yi;ZHANG Jiawen;CAI Ying;YI Lingmin(College of Textile Science and Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China;Engineering Research Center for Eco-Dyeing&Finishing of Textiles,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China;Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学纺织科学与工程学院,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,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,杭州310018

出　　处：《丝绸》2023年第10期30-37,共8页Journal of Silk

基　　金：国家自然科学基金项目(22078305)。

摘　　要：具有个人热管理功能的纺织品,可减缓夏日高温对人体的伤害。本文以尼龙织物为基材,聚(偏氟乙烯-六氟丙烯)及含氟改性的无机SiO_(2)、ZnO纳米粒子的混合分散液为整理剂,得到了具有超疏水和抗紫外功能的日间被动辐射制冷(PDRC)多孔涂层织物。研究表明:整理后的尼龙织物表面及纤维间被相互黏连的多孔聚合物膜及氟改性SiO_(2)、ZnO纳米粒子覆盖,粒子相对质量和涂覆量的增加可增强织物的光谱性能,改性织物的太阳光反射率和中红外发射率最高可达93.1%和98.8%;太阳光下多孔涂层织物的温度可比环境温度低8~12℃,且具有优异的超疏水性、耐候性和机械性能;改性氧化锌(F-ZnO)的引入为整理后的尼龙织物提供了优异的抗紫外性能,使其达到抗紫外织物的国家标准。The phenomenon of human body heat disease induced by high temperature in summer has been widespread.When people are out of the air conditioning and other refrigeration equipment in outdoor activities,shelters such as umbrellas,sunscreen clothes and tents have become the main measures to provide human thermal comfort.Textilebased personal thermal management functional materials can mitigate the health damage to people in hot summer.Passive daytime radiative cooling(PDRC)involves no energy consumption,can reflect solar heat radiation in the near-infrared spectrum(0.3-2.5μm),and transmit heat through the transparent window of the atmosphere(8-13μm)to the cold outer space,thus providing a comfortable living environment for human beings.So far,various PDRC materials with different structures have been designed.Among them,the porous structure has a good scattering effect,and its scattering pores can not only significantly improve the solar reflectivity,but also greatly reduce the cost of related functional materials,which has great commercial prospects.Nylon with excellent properties has been widely used to fabricate outdoor textiles.However,the nylon textile will be gradually aged when it is exposed to a lot of ultraviolet light for a long time,and the textile structure will be damaged.Therefore,it is of great significance to research and develop outdoor personal thermal management textiles with good cooling performance and anti-ultraviolet property.In this paper,polymer-based P(VDF-HFP)and inorganic nanoparticles(F-SiO_(2) and F-ZnO)were used to construct porous structure on the nylon fabric via dip-coating,and endow the fabric with cooling and anti-ultraviolet property.The morphology and chemical structure of the modified nylon fabric were investigated.The influence of coated weight and F-ZnO content on the solar reflectivity,infrared emissivity,and anti-ultraviolet property were discussed.Meanwhile,the cooling performance of the modified nylon fabric was characterized.The results show that fabric fibers are cover

关 键 词：被动日间辐射冷却 多孔涂层 抗紫外 超疏水 户外纺织品 改性粒子 

分 类 号：TS101.923[轻工技术与工程—纺织工程]