芳纶1414增强ABS复合材料的性能研究

Study on Properties of ABS Composite Reinforced by PPTA

用短切芳纶1414(PPTA)对丙烯腈-丁二烯-苯乙烯共聚物(ABS)树脂进行增强改性,利用扫描电镜、热失重分析和力学性能测试等方法分析了ABS/PPTA复合材料的断面形态结构、热性能和力学性能。结果表明:当PPTA用量为5份时,ABS/PPTA复合材料的拉伸强度和拉伸模量分别比纯ABS树脂提高了11%和29%,弯曲强度和弯曲模量分别增至78.8MPa和2.9GPa;PPTA可增强ABS树脂在高温时的热稳定性,降低最大失重速率并,提高残炭量。

ABS resin was reinforced by short aramid 1414（PPTA）.The microstructure,thermal property and mechanical property of ABS/PPTA composite were analyzed by SEM,TGA and mechanical property test.The results show that with the addition of 5 phr PPTA,the tensile strength and tensile modulus of ABS/PPTA composite increase by 11% and 29% compared with pure ABS resin,and the flexural strength and flexural modulus are up to 77.8 MPa and 2.9 GPa;the addition of PPTA enhances the thermal stability of ABS resin at high temperature,decreases the maximum weight loss rate,and increases the char residue.