增韧聚苯乙烯复合材料的制备及性能研究  

Preparation and Properties of Toughened Polystyrene Composites

作　　者：曾瞬钦 周湘 贺帅 黄剑英 隆进松 舒友[1] 林红卫[1] 苏胜培[2] 罗琼林 Zeng Shunqin;Zhou Xiang;He Shuai;Huang Jianying;Long Jinsong;Shu You;Lin Hongwei;Su Shengpei;Luo Qionglin(New Material Preparation and Application Center,Huaihua University,Huaihua 418000,China;Hunan Provincial Key Laboratory of Resource Refinement and Advanced Materials,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China)

机构地区：[1]怀化学院新材料制备及应用中心,湖南怀化418000 [2]湖南师范大学化学与化工学院资源精细化与先进材料湖南省高校重点实验室,湖南长沙410081

出　　处：《山东化工》2023年第1期1-4,共4页Shandong Chemical Industry

基　　金：湖南省省市联合基金(2022JJ50309);生物工程湖南省“双一流”学科、民族药用植物资源研究与利用湖南省重点实验室(YYZW2019-05)。

摘　　要：将通用聚苯乙烯(GPPS)、聚苯乙烯基微球(CSPS-SMs)、助剂与三元乙丙橡胶(EPDM),采用二次熔融共混挤出造粒法制备出了聚苯乙烯复合材料。工段一中:将EPDM、CSPS-SMs和助剂通过熔融挤出制得EPDM/CSPS-SMs母粒料;工段二中:将母粒料与GPPS熔融共混挤出制得聚苯乙烯基复合材料。通过万能试验机、差示扫描量热仪(DSC)、热重分析仪(TGA)和扫描电镜(SEM)对聚苯乙烯基复合材料的力学性能、相容性、热性能、分散性进行了分析。实验结果研究表明:当添加母料至15份时其综合性能最佳,与纯GPPS相比,其拉伸强度提升了8.5%,冲击强度提升了59.6%。DSC结果分析表明:GPPS与EPDM具有良好的相容性。TGA结果分析表明:在250℃范围内,聚苯乙烯复合材料具有良好的热稳定性。SEM结果分析表明:当添加EPDM/聚苯乙烯基微球母粒料少于15份时,其聚苯乙烯复合材料的分散性良好。In this paper,the general polystyrene(GPPS),polystyrene microspheres(CSPS-SMS),additives and ethylene propylene diene rubber(EPDM)through the secondary melt blending extrusion granulation method to prepare polystyrene composites.Section 1:EPDM,polystyrene microspheres and additives are extruded through melting to prepare EPDM polystyrene microspheres masterbatch;Section 2:the master batch and GPPS melt blending extruder to toughened polystyrene matrix composite material.The mechanical properties,compatibility,thermal properties and dispersion of polystyrene matrix composites were analyzed by universal testing machine,differential scanning calorimeter(DSC),thermogravimetric analyzer(TGA)and scanning electron microscope(SEM).The experimental results show that:when the masterbatch is added to 15 parts,the overall performance is the best.Compared with pure GPPS,the tensile strength and impact strength of the masterbatch are increased by 8.5%and 59.6%.DSC analysis showed that GPPS had good compatibility with EPDM.TGA results show that the thermal stability of polystyrene composites is the best at 250℃.SEM results show that the dispersion of EPDM polystyrene composite is good when less than 15 pieces of EPDM polystyrene microsphere masterbatch is added.

关 键 词：通用聚苯乙烯复合材料 熔融共混挤出 聚苯乙烯基微球 三元乙丙橡胶 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]