聚碳酸酯_聚芳醚腈合金的制备与性能研究.doc


聚碳酸酯/聚芳醚***合金的制备与性能研究
沈世钊,郭瑞熙,杨健,刘孝波**
(电子科技大学微电子与固体电子学院,耐高温高分子及复合材料四川省重点实验室,
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成都 610054)
摘要:将聚芳醚***(PEN) 与聚碳酸酯(PC)按不同比率通过熔融共混制备一系列合金材料,
并用差示扫描量热(DSC),热失重分析(TG)等手段研究其不同比例合金的热性能,力学性能
和阻燃性能。结果表明,PC/PEN 合金有着较高的热稳定性和力学性能,随着聚芳醚***含量
的增加,合金的拉伸强度为 59~70MPa,弯曲强度为 86~115MPa,玻璃化转变温度(Tg)在
150~175℃变化,5%热失重温度为 425~525℃。同时还发现随着聚芳醚***的加入氧指数增加,
提高了合金的阻燃性。
关键词:聚芳醚***;聚碳酸酯;共混;性能
中图分类号:
Preparation and properties of the Melt Blends of
Polycarbonate and Poly(arylene ether nitriles)
SHEN Shizhao, GUO Ruixi, YANG Jian, LIU Xiaobo
(High-Temperature Resistant Polymers posites Key Laboratory of Sichuan Province,
Institute of Microelectronic & Solid State Electronic, University of Electronic Science and
Technology of China, ChengDu 610054)
Abstract: A series of melt blends of Polycarbonate(PC) and Poly(arylene ether nitriles)(PEN)
were prepared via melt mixing, and they were studied by DSC, TG and other means on their flame
resistance, thermal and mechanical properties . The results showed that melt blends had high
thermal stability and mechanical properties, with the increasing of PEN content, tensile strength
were in the range of 57~70MPa,flexural strength were between 84 and 115MPa, the glass
transition temperatures were in the range of 150~175℃, and the temperatures for 5% weight loss
were found between 425 and 525℃in nitrogen atmosphere . It al