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《Journal of Wuhan University(Natural Science Edition)》 2018-05
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Preparation and Performance of Polyphenylene Sulfide Ultrafine Fiber Composites with Thermal Conductivity

LIU Man;YU Yan;XIONG Siwei;WANG Luoxin;WANG Hua;SUN Jiuxiao;School of Materials Science and Engineering,Wuhan Textile University;Sichuan Institute of Textile Science;  
By the template method,the three-dimensional network structure of polyphenylene sulfide(PPS)ultrafine fiber was used as the skeleton,which was filled with high thermal conductive filler such as carbon black(CB)acetylene black(ACET),and PE wax powder(PEW)was used as the adhesive.Then,by spraying and hot rolling,the filler was uniformly dispersed between the PPS ultrafine fiber voids to obtain a flexible PPS ultrafine fiber thermal conductive composite material.The filler was evenly dispersed among the PPS ultrafine fiber voids by spraying and hot rolling.The scanning electron microscopy(SEM)was used to characterize the structure and morphology.The effect of the kinds,content and dispersion state of the thermally conductive filler on the thermal conductivity,heat resistance,mechanical properties,electrical conductivity and gas permeability of the PPS thermally conductive composites were investigated.The experimental results show that the PEW mixed with CB or ACET can effectively enhance the dispersibility of the two fillers and significantly improve the electrical and thermal conductivity of the composites.Moreover,both CB@PEW/PPS and ACET@PEW/PPS composites have no obvious deformation below 300℃;the air permeabilities of both composites decrease with the increase of filler content;and the tensile strength of CB@PEW/PPS composites firstly increases and then decreases with the increase of content.Under the premise of no powder removal,CB@PEW/PPS composites have the optimal thermal conductivity and heat resistance,and ACET@PEW/PPS have the optimal gas permeability and conductivity.
【Fund】: 国家科技支撑计划资助项目(2015BAE01B04);; 四川省科技计划项目(2018GZ0522)
【CateGory Index】: TB33
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