SGF增强PPSU/PC复合材料的结构与性能  

Structure and Properties of PPSU/PC Composites Reinforced by SGF

作　　者：肖周杰 赵建青[1] 刘述梅[1] 傅轶 王贤文 Xiao Zhoujie;Zhao Jianqing;Liu Shumeil;Fu Yi;Wang Xianwen(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640;Silver age Sci ＆ Tech Co.,Ltd.,Dongguan 523187;UJU Co.,Ltd.,Jiangmen 529000,China)

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]广东银禧科技股份有限公司,广东东莞523187 [3]江门市优巨新材料有限公司,广东江门529000

出　　处：《广东化工》2018年第16期226-229,共4页Guangdong Chemical Industry

基　　金：广东省科技计划项目2015B090925001

摘　　要：采用熔融共混挤出制备短切玻璃纤维(SGF)增强聚亚苯基砜树脂(PPSU)/聚碳酸酯(PC)复合材料,探讨了PC组分用量变化对所形成的PPSU/PC合金和SGF/PPSU/PC复合材料加工性能、力学性能、耐热性能等的影响。研究表明PPSU中添加10 wt%的PC后,熔体流动性能增加47%,可加工温度降低20℃,且拉伸强度与弯曲强度略有增加;30 wt%的SGF对PPSU/PC体系增强作用明显,拉伸强度随PC添加量的增加而增加。采用差示扫描量热法以及刻蚀除去PC组分的方法研究表明合金中PPSU与PC相互作用较弱,两相结构较明显。冲击断面的扫描电镜照片分析表明SGF在PPSU/PC合金基体中分散均匀,界面结合牢固。Polyphenylenesulfone/polycarbonate（PPSU/PC） composites reinforced by short glass fiber（SGF） were prepared through melt extrusion. Mechanical and thermal properties and processability of PPSU/PC blends and SGF/PPSU/PC composites were investigated with different PC contents. It was found that the addition of 10 wt% PC into PPSU matrix, melt flow index of the blend increased by47%, extrusion temperature could decrease by 20 ℃, the tensile strength and bending strength were slightly enhanced. PPSU/PC blends were highly reinforced by 30 wt% SGF, and the tensile strength of the composites increased with PC contents. Differential calorimetry scanning and etching method were used to study the compatibility of PPSU/PC blends. The results showed a weak interaction force between PPSU and PC phase and the presence of two-phase structure in PPSU/PC blends. Scanning electron microscope images of the impact fracture surface indicated that SGF was well dispersed in PPSU/PC matrix with strong interfacial interaction.

关 键 词：聚亚苯基砜 聚碳酸酯 短切玻璃纤维 加工性能 增强 

分 类 号：TB332[一般工业技术—材料科学与工程]