SiO_2气凝胶隔热涂层织物的制备及性能研究  

Preparation of Silica Aerogel Coated Fabric and Studies of Its Performance

作　　者：贺香梅[1] 徐壁[1] 蔡再生[1] 

机构地区：[1]东华大学化学化工与生物工程学院,上海201620

出　　处：《表面技术》2014年第3期95-100,共6页Surface Technology

摘　　要：目的提高织物的隔热效果及抗紫外性能。方法以SiO2气凝胶和TiO2为功能粒子,采用聚丙烯酸酯、聚氨酯类粘合剂,在棉织物上制备涂层,研究功能粒子和粘合剂用量对涂层织物隔热效果的影响。结果当涂层剂中粘合剂和去离子水质量比为2∶8,气凝胶加入量为粘合剂和去离子水总质量的10%时,涂层织物的隔热性能最好,较原织物显著提高。此外,SiO2气凝胶-TiO2复合涂层的隔热性能也颇为优异。织物涂覆涂层后,与原织物相比,断裂强力基本不变,撕破强力略有下降,白度提高,抗紫外性能提高,摩擦牢度好。结论采用SiO2气凝胶、TiO2作为功能粒子对织物进行涂层涂覆,其隔热性能显著提高。Objective To improve the heat insulation and UV resistance performance of fabrics. Methods Cotton fabrics were coated with silica aerogel and TiO2 as functional particles, and PA as well as PU as adhesive agents. The influences of the amounts of silica aerogel and adhesive agent on the insulation performance of the coated fabrics were studied. Results The coated fabrics showed much better thermal insulation performance than the untreated fabrics. The insulation performance of coated fabric was the best when the mass ratio of the binder to deionized water was 2 ： 8 and aerogel accounted for 10% of the mass of the coating agent. SiO2-TiO2 composite coating also displayed extraordinary thermal insulation behavior. Compared with the untreated fabrics, the coated fabrics manifested the same level of breaking strength, lower tearing strength, much better anti-ultraviolet capability with good abrasion fastness. Conclusion The heat insulation performance of cotton fabrics was improved a lot after coating with silica aerogel and TiO2 as functional agents.

关 键 词：SIO2气凝胶 TIO2 织物 隔热 涂层 

分 类 号：TG174.46[金属学及工艺—金属表面处理] TS106.5[金属学及工艺—金属学]