Fe_(3)O_(4)@SiO_(2)/HDI-CNTs/PUU纳米复合材料的制备与性能研究  

Preparation and Properties of Fe_(3)O_(4)@SiO_(2)/HDI-CNTs/PUU Nanocomposites

作　　者：林展鸿 林圣群 张歆旸 汪晓思 史瑞欣[1] Lin Zhanhong;Lin Shengqun;Zhang Xinyang;Wang Xiaosi;Shi Ruixin*(Northeast Forestry University College of Chemistry,Chemical Engineering and Resource Utilization,Harbin 150000,China)

机构地区：[1]东北林业大学化学化工与资源利用学院,黑龙江哈尔滨150000

出　　处：《广东化工》2021年第16期1-2,30,共3页Guangdong Chemical Industry

基　　金：中央高校基本科研业务费专项资金资助(2572018BC31);黑龙江省自然科学基金项目(2018E003);东北林业大学大学生创新创业训练计划项目“聚(脲-氨酯)/聚酯复合材料双向形状记忆性能研究”。

摘　　要：为了拓宽形状记忆高分子材料聚(脲-氨酯)的形状记忆响应方式,向聚(脲-氨酯)基体中添加四氧化三铁纳米粒子和碳纳米管。为了改善四氧化三铁纳米粒子在基体中的分散性,对四氧化三铁纳米粒子进行了SiO_(2)包覆;为了避免碳纳米管在基体发生自聚,向碳纳米管表面引入异氰酸酯基团,从而使碳纳米管以化学键合的方式分散在基体中。通过对Fe_(3)O_(4)@SiO_(2)/HDI-CNTs/PUU纳米复合材料的结构、拉伸性能、形状记忆性能等的研究,结果表明,当Fe_(3)O_(4)@SiO_(2)添加量为5%,HDI-CNTs添加量为3%时,材料的综合性能较优。In order to broaden the shape memory response mode of poly (urea-urethane) shape memory polymer material,Fe_(3)O_(4) nanoparticles and carbon nanotubes were added into the poly (urea-urethane) matrix.In order to improve the dispersion of Fe_(3)O_(4) nanoparticles in the matrix,Fe_(3)O_(4) nanoparticles were coated with SiO_(2).In order to avoid the self-polymerization of carbon nanotubes in the matrix,the isocyanate groups were introduced on the surface of carbon nanotubes,so that the carbon nanotubes were dispersed in the matrix by chemical bonding.The structure,tensile properties and shape memory properties of Fe3O4@Si O2/HDI-CNTs/PUU nanocomposites were studied.The results show that the composite has better comprehensive properties when the addition amount of Fe_(3)O_(4)@SiO_(2) is 5%,and the addition amount of HDI-CNTs is 3%.

关 键 词：聚(脲-氨酯)材料 碳纳米管 四氧化三铁纳米粒子 形状记忆 热致 光致 磁致 

分 类 号：TQ[化学工程]