摘要
为了改善PPS的冲击性能,通过双螺杆挤出机制备了POE-g-MAH增容的MPPS/AES(80/20)合金,采用电子万能试验机、热重分析仪(TGA)、扫描电子显微镜(SEM)和高级流变仪测定了不同含量的POE-g-MAH对AES/MPPS(20/80)合金性能的影响。结果表明:POE-g-MAH是一种有效的增容剂,能促使AES分散相粒子细化,分布愈加均匀,增大了MPPS与AES分子链的缠结密度,增大了界面黏结力,使材料的分子链运动困难,复数黏度得到提高,提高了其二次最大分解温度,当POE-g-MAH加入量为8%时,AES/MPPS(20/80)合金的综合性能最优,冲击强度增大到5.36 kJ/m^2,其二次分解温度提高了20℃,分散相粒子尺寸最小,其数均粒径减小到0.69μm,体积平均半径减小到0.67μm,分散相分布更加均匀。
In order to improve the impact properties of PPS, the MPPS/AES (80/20) alloy compatibilized with POE-g- MAH was prepared through a twin-screw extruder. The influence of POE-g-MAH on properties of MPPS/AES Alloy was studied by electronic universal test machine, thermogravimetrie analyzer, scanning electron microscope and advanced rheometer. It was showed that POE-g-MAH was an effective compatibilizer which made the AES dispersed particles fine and evenly distributed. The entanglement density of the molecular chains and the Interfacial adhesion were increased, and the movement of molecular chain of the material was also more difficult. In addition, the complex viscosity and the second maximum decomposition temperature were improved. When the content of POE-g-MAH was 8% , AES/MPPS (20/80) alloy had the best overall performance. The impact strength was increased to 5.36 kJ/m^2 , and the second maximum decomposition temperature was increased by 20℃. Moreover, the dispersed particle size was minimized. The number average particle size was reduced to 0.69 μm, and the volume average radius was reduced to 0. 67 μm. Furthermore, the distribution of dispersed phase was the most uniform.
作者
黄永忠
敬波
汤隆冬
蒋健强
殷雄
邹晓轩
戴文利
HUANG Yongzhong;JING Bo;TANG Longdong;JIANG Jianqiang;YIN Xiong;ZOU Xiaoxuan;DAI Wenli(Institute of Polymer Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China)
出处
《塑料》
CSCD
北大核心
2017年第6期20-23,共4页
Plastics