A Novel Ternary Composite of Polyurethane/Polyaniline/Nanosilica with Antistatic Property and Excellent Mechanical Strength:Preparation and Mechanism  

作　　者：Xiu-Zhi Tian Rui Yang Jia-Jia Ma Yong-Hao Ni Hai-Bo Deng Lei Dai Jiao-Jun Tan Mei-Yun Zhang Xue Jiang 

机构地区：[1]College of Bioresource Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi’an,710021,China [2]College of Textile Science and Engineering,Jiangnan University,Wuxi,214122,China [3]Limerick Pulp&Paper Centre&Department of Chemical Engineering,University of New Brunswick,Fredericton,New Brunswick,E3B5A3,Canada

出　　处：《Chinese Journal of Polymer Science》2022年第7期789-798,共10页高分子科学（英文版）

基　　金：financially supported by Natural Science Advance Research Foundation of Shaanxi University of Science and Technology(No.2020XSGG-07);the National Natural Science Foundation of China(No.31570578);Key Research and Development Program of Shaanxi(No.2022GY-278)。

摘　　要：Antistatic and strength properties are of vital importance for polyurethane rubber used in moving parts of many industrial instruments.Herein,polyurethane was composited with polyaniline and nanosilica based on in situ synthesis of polymer and physical mixing of these fillers to reach desired antistatic and mechanical properties.Chemical,morphological and thermal properties of the polyurethane/polyaniline/nanosilica composites were studied.The electrical resistivity of the composite decreased from 1.1×10^(6)MΩto 7.6×10^(4)MΩas a result of the addition of 4%polyaniline.The tensile strength and elongation at break of the polyurethane composites improved by nearly 300%and100%,respectively,when compared with those of the neat polyurethane.The electronic resistance of PU/PANI/NS ternary is low enough for its antistatic property and decreases with the increase of the added nanosilica,which is unexpectedly and rather significant.Our results would shed light on the development of antistatic PU with excellent mechanical performance.

关 键 词：Polyurethane/polyaniline/nanosilica composites Antistatic property Mechanical property Molecular simulation 

分 类 号：TB332[一般工业技术—材料科学与工程]