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《Acta Materiae Compositae Sinica》 2018-06
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Surface modification of aramid fibers and its effect on adhesion property of aramid/rubber composites

WANG Lunhe;SONG Minggen;ZHANG Bin;SU Juanjuan;HAN Jian;School of Materials and Textiles,Zhejiang Sci-Tech University;Zhejiang Unifull Industrial Fiber Co.Ltd.;Zhejiang Provincial Key Lab.of Industrial Textile Materials & Manufacturing Tech,Zhejiang Sci-Tech University;  
The waterborne polyurethane prepolymer(WPUP)encapsulated ZnO particles(ZnO@ WPUP)were synthesized by using in-situ emulsion polymerization method.The aramid fibers pretreated by KOH were then secondly treated by modified ZnO emulsion.In addition,aramid/rubber composites modified by ZnO@WPUP were obtained by the vulcanization between aramid fiber and nature rubber.Meanwhile,the influence of ZnO@WPUP on the adhesion property of aramid/rubber composites was analyzed by FTIR,SEM and cord-H-pull test.The results show that WPUP can effectively enhance the dispersing property of ZnO.The roughness and dispersing property of ZnO@WPUP on the surface of aramid fibers increase obviously as the content of WPUP increasing.Thereby the modified ZnO can effectively improve the amount of adhesive rubber on the aramid fibers surface,and the adhesion strength of aramid/rubber composites is enhanced significantly.
【Fund】: 浙江省重点研发计划(2017C01097)
【CateGory Index】: TB332
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