柔性海泡石基气凝胶的制备及其保温隔热性能的研究  

Preparation of flexible sepiolite-based aerogel and its thermal insulation properties

作　　者：胡叶蕾 续通 毛志平 徐红 Hu Yelei;Xu Tong;Mao Zhiping;Xu Hong(Key Lab of Science and Technology of Eco-textile,Ministry of Education,College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620;Sino-German Engineering College,Shanghai Technical Institute of Electronics&Information,Shanghai 201620;National Manufacturing Innovation Center of Advanced Dyeing&Finishing Technology,Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Taian 271000)

机构地区：[1]东华大学化学与化工学院生态纺织教育部重点实验室,上海201620 [2]上海电子信息技术学院,中德工程学院,上海201620 [3]山东中康国创先进印染技术研究院有限公司国家先进印染技术创新中心,泰安271000

出　　处：《化工新型材料》2024年第2期175-180,共6页New Chemical Materials

基　　金：上海市科学技术委员会国际合作项目(21130750100);中央高校基本科研业务费专项资金资助(2232022G-04)。

摘　　要：以海泡石为基质,聚乙烯醇为有机增强相,硅烷偶联剂KH-560和聚乙烯亚胺为交联剂,经冷冻干燥制备了具有优异保温隔热性能的柔性海泡石基气凝胶。其导热系数低至0.0374W/(m·K),轴向在经过80%的压缩形变后能达到100%回弹,径向在经过50%的压缩形变后也能达到100%回弹。该气凝胶有望作为保温隔热材料应用于建筑、隔热帐篷等领域。The flexible sepiolite-based aerogel with excellent thermal insulation properties was prepared by freeze-drying using sepiolite as the matrix,polyvinyl alcohol as the organic reinforcing phase,silane coupling agent KH-560 and polyethyleneimine as the crosslinking agents.Its thermal conductivity was as low as 0.0374W/(m·K).The axial direction could reach 100%rebound after 80%compression deformation,and the radial direction could also reach 100%rebound after 50%compression deformation.The aerogel is expected to be used as a thermal insulation material in the fields of constructions and insulation tents.

关 键 词：海泡石基气凝胶 热稳定性 力学性能 保温隔热 

分 类 号：TQ127.2[化学工程—无机化工]