芳纶/气凝胶复合材料制备及其性能研究  

Study on preparation of aramid/aerogel composite and its properties

作　　者：姚理荣[1] 任娟[1] 徐山青[1] 

机构地区：[1]南通大学纺织服装学院,南通226019

出　　处：《产业用纺织品》2015年第3期11-15,共5页Technical Textiles

基　　金：江苏省科技厅基础研究计划青年基金项目(BK2012234);南通市科技局应用研究计划项目(BK2012041);南通大学科研创新计划项目(YKC14001)

摘　　要：用芳纶沉析纤维与芳纶短纤采用湿法抄纸制得芳纶纸,再加入疏水Si O2气凝胶制备了芳纶/气凝胶复合材料,并测试了芳纶纸和芳纶/气凝胶复合材料的相关性能。结果表明:当芳纶沉析纤维/芳纶短纤质量混比为60∶40时,芳纶纸的力学性能较优;芳纶/气凝胶复合材料的断裂强度和伸长率均随气凝胶含量的增加而减小,但当气凝胶质量分数为1%时,芳纶/气凝胶复合材料的断裂强度和伸长率保持率在85%以上,可有效保证其使用性能;芳纶/气凝胶复合材料比芳纶纸具有更好的耐热性能。The aramid fibrid and aramid staple were mixed to prepare aramid paper by wet-papermaking, then the hydrophobic SiO2 was added to make aramid/aerogel composite, and the properties of them were characterized. The results indicated that the aramid paper has excellent mechanical properties when the weight proportion of the aramid fibrid and aramid staple was 60∶40 . The strength and elongation of aramid/aerogel composite decreased with the content of aerogel increasing, however, more than 85%of its strength and elongation retained when the content of hydrophobic SiO2 was 1%, which ensured the performance of the aramid/aerogel composite. The aramid/aerogel composite had a better heat-resisting property than the aramid paper.

关 键 词：芳纶 气凝胶 复合材料 力学性能 耐热性能 

分 类 号：TQ342.72[化学工程—化纤工业] TB332[一般工业技术—材料科学与工程]