具有日间被动辐射制冷功能的超疏水锦纶6织物的制备及性能研究  

Preparation and performance of super-hydrophobic nylon-6 fabric withpassive daytime radiative cooling function

作　　者：张迅 钟申洁 张佳文[1,2,3] 蔡英[1,2,3] 易玲敏[1,2,3] ZHANG Xun;ZHONG Shenjie;ZHANG Jiawen;CAI Ying;YI Lingmin(College of Textile Science and Engineering,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China;Engineering Research Center for Eco-Dyeing&Finishing of Textiles,Ministry of Education,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China;Key Laboratory of Advanced Textile Materials&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》2022年第2期31-39,共9页Journal of Silk

基　　金：国家自然科学基金项目(22078305)。

摘　　要：高温环境将严重威胁户外工作人员的身体健康,且降低户外纺织用品的使用寿命。文章将改性SiO_(2)粒子和有机硅醇酸树脂-含氟丙烯酸酯(FASAR)乳液先后喷涂整理织物,并通过添加三羟甲基丙烷-三(3-氮丙啶基)丙酸酯交联剂(XR-100)在室温交联成膜,最终制得具有日间被动辐射制冷(PDRC)功能的超疏水锦纶6织物,研究了不同涂覆量的FASAR/SiO_(2)对织物的降温及疏水性能的影响。结果表明:当织物表面涂覆量为11.2 mg/cm^(2)时,其反射率可达92%,发射率为98%。当光照强度为1012 W/m^(2)时,相比于未整理的织物其最高可降温3.0℃,同时比环境温度下降5.0℃,且具有自清洁的效果。Nowadays,most traditional conventional cooling devices mainly including refrigerators and air conditioners have consumed a good deal of energy and resources,causing the greenhouse effect and the urban heat island effect.At the same time,the high temperature in summer will seriously affect the health of outdoor people,and greatly reduce the service life of outdoor products.Therefore,the development of cooling fabrics for people and outdoor products under the hot sun is recognized as an attractive strategy.However,its openness and solar radiation heating have posed enormous challenges to achieve effective outdoor cooling in the daytime.Passive daytime radiative cooling(PDRC),as an innovative and environment friendly alternative,has attracted researchers’great interest.The key cooling effect of PDRC under direct sunlight can be attributed to two reasons:one is a high reflectivity across Vis-NIR wavelengths(0.3-2.5μm)to repel the heat from solar radiation,the other is a high IR thermal emissivity at transparent atmospheric spectral window(8-13μm)to radiate heat to outer space.In recent years,a lot of studies have focused on the design of PDRC radiators with micro/nano photonic structure,metamaterials,multilayer stacks and so on.For example,Raman et al.designed a multilayer photonic structure available for the alternate use of SiO_(2) and HfO_(2),which obtained a cooling effect of 4.9℃below the ambient temperature at noon.Zhai et al.embedded silica microspheres randomly in a polytetramethylpentene(TPX)polymer matrix film in place of multi-layer stacks.And the metamaterial obtained after sputtering a silver layer can reach the infrared emissivity of 93%and the solar reflectivity of 96%,with a maximum temperature drop of 10-16℃under the sunlight.Despite the high efficiency,these PDRC radiators generally require expensive or complicated nano fabrication instruments,causing cost and efficiency issues.Latterly,using metallic silver as the cooling paints of reflectors and porous polymer coatings has attracted consid

关 键 词：日间被动辐射制冷 锦纶6织物 室温交联 超疏水 自清洁 

分 类 号：TS101.923[轻工技术与工程—纺织工程]