摘要
为了获得具有制冷性能的超疏水织物,利用含氟硅烷和环氧硅烷对SiO_(2)粒子进行改性,通过浸涂的方式将改性粒子整理到涤纶织物上,并喷涂聚二甲基硅氧烷交联成膜;对整理前后涤纶织物的表面形貌和结构进行分析,探究不同涂覆量下有机-无机复合涂层织物的光谱特性,并考察复合涂层织物的制冷性能和疏水性能。结果表明:当涂覆量为29.67mg/cm2时,复合涂层织物的太阳光反射率为94.3%,中红外发射率为91.2%;在户外太阳直射下,相比原始涤纶织物最高可降温度为2℃,比测试箱体内环境温度最高可降温8.2℃;复合涂层织物的静态水接触角为151.4°,滚动角为6.1°;经过100次摩擦后,静态水接触角下降至147.8°。该超疏水织物具有优异的自清洁性能和较好的耐摩性,在高温节能、辐射制冷领域具有广阔的应用前景。
To obtain superhydrophobic fabrics with passive daytime radiative cooling performance,SiO_(2)particles modified with fluorosiloxane and epoxysiloxane were used to coat the polyester fabric via dipping.Then polydimethylsiloxane was sprayed on them to form a cross-linked structure.The morphology and chemical structure of polyester fabrics before and after modification were analyzed,and the spectral characteristics of organic-inorganic composite coated fabrics with different coating amounts were investigated.Meanwhile,the cooling performance and hydrophobic property of the coated polyester fabrics were also studied.The results show that when the coating amount of polyester fabric is 29.67mg/cm2,the solar reflectance reaches 94.3%,and the middle infrared emissivity achieves 91.2%.In direct sunlight,the coated polyester fabric realizes an efficient temperature reduction of 8.2℃compared with the ambient temperature inside test chamber,and has a lower temperature of 2℃compared with the pristine polyester fabric.The static water contact angle of the composite coated fabric is 151.4°and the rolling angle is 6.1°;after 100rubs,the static water contact angle drops to 147.8°.The superhydrophobic fabric has excellent self-cleaning properties and good abrasion resistance,and has broad application prospects in the field of high temperature energy saving and radiative cooling.
作者
潘毕成
张佳文
杨孝全
蔡英
易玲敏
PAN Bicheng;ZHANG Jiawen;YANG Xiaoquan;CAI Ying;YI Lingmin(College of Textile Science and Engineering(International Institute of Silk),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 and Manufacturing Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,China)
出处
《浙江理工大学学报（自然科学版）》
2024年第1期55-62,共8页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(22078305)
浙江省自然科学基金项目(LQ22B060014)
国家级大学生创新创业训练计划项目(202110338018)。
关键词
被动式日间辐射制冷
二氧化硅
涂层
涤纶
超疏水
passive daytime radiative cooling
SiO_(2)
coating
polyester
superhydrophobic
