自清洁型F-SiO_(2)/BaTiO_(3)降温涂层织物的制备与性能  

Preparation and properties of self-cleaning F-SiO_(2)/BaTiO_(3) coated cooling fabric

作　　者：徐帅 王菲[1,2,3] 袁浩 张佳文 易玲敏[1,2,3] XU Shuai;WANG Fei;YUAN Hao;ZHANG Jiawen;YI Lingmin(College of Textile Science and Engineering,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China;Engineering Research Center for Eco-Dyeing and Finishing of Textiles,Ministry of Education,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;Zhejiang Shengfa Textile Printing and Dyeing Co.,Ltd.,Huzhou 313109,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 [4]浙江盛发纺织印染有限公司,浙江湖州313109

出　　处：《现代纺织技术》2024年第9期1-9,共9页Advanced Textile Technology

基　　金：国家自然科学基金项目(22078305,22308334);中国博士后科学基金项目(2023M743128);浙江省教育厅科研项目(Y202148235);浙江省大学生科技创新活动计划项目(2023R406008)。

摘　　要：为了制备具有自清洁功能的降温织物,选用锦纶牛津布为基材,使用氟硅烷改性二氧化硅粒子,将聚二甲基硅氧烷(PDMS)、含氟烷基改性二氧化硅(F-SiO_(2))、钛酸钡(BaTiO_(3))通过刮涂的方式整理到锦纶织物上,获得复合降温涂层织物;对所得织物的微观结构和表面化学组成进行测试,探究不同涂覆量对复合涂层织物太阳光反射率和中红外发射率的影响,评估涂层织物的降温性能、易去污性能、机械性能。结果表明:复合涂层的引入能显著提高织物的光谱性能,与原始锦纶相比,制备的复合涂层织物的太阳光反射率提高至88%,大气窗口红外发射率可达92%。在户外太阳直射的情况下,制备的复合涂层织物最高可降温5.6℃,且具有很好的自清洁易去污效果和机械性能,在户外装备降温、电器设备降温、建筑路面降温等领域具有广泛的应用前景。Global warming and urban heat island effect have a significant influence on social progress and survival of human beings.Excessive heat in outdoor space can reduce the lifespan of outdoor products and pose a threat to people's safety.Therefore,during hot summer days,outdoor protective equipment with cooling functions has become increasingly popular.Passive daytime radiative cooling(PDRC)technology is an effective strategy for achieving outdoor cooling.It can cool the surface of the subject solely through the inherent properties of the material itself without consuming any energy.PDRC materials reflect sunlight with wavelengths ranging from 0.3 to 2.5μm and radiate heat through the atmospheric window(8-13μm)into outer space.Combining radiative cooling technology with textiles to prepare cooling textiles is meaningful.However,it is difficult to achieve high cooling performance while maintaining good usability of textiles.Meanwhile,outdoor cooling textiles inevitably encounter rainfall and atmospheric sediments during use.These contaminants will accumulate on the surface of textiles,reducing their sunlight reflectance and infrared emissivity,which in turn affects the cooling performance.Therefore,it is necessary to develop PDRC textiles that have anti-contamination capabilities and can continuously achieve high-efficiency cooling effect.In this study,PDMS and fluorosilane-modified SiO_(2) particles were used to combine with visible-near infrared highly reflective BaTiO_(3) particles to prepare PDRC coating with self-cleaning property on nylon fabrics to obtain coated fabrics with cooling effect.The morphology and chemical structure of the coated nylon fabrics were analyzed.The influencing factors of the spectral characteristics of the coated nylon fabric were studied.The cooling performance,self-cleaning performance,and mechanical properties of fabrics were also investigated.The results show that the coated fabric has a comparatively higher sunlight reflectance and mid-infrared emissivity,and both the sunlight ref

关 键 词：辐射降温 SiO_(2) BaTiO_(3) 涂层 锦纶 自清洁 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]