利用双螺杆挤出机制备PC/ASA合金,探讨了不同PC与ASA配比对性能的影响。结果表明：在PC/ASA体系中,PC与ASA的配比为70∶30,添加4%的相容剂SMA以及0．8%的抗氧剂、润滑剂,能获得最优的性能：悬臂梁缺口冲击强度达66．7kJ/m2,拉伸强度达56．1MPa,弯曲强度达82．3MPa,热变形温度达105．6℃；同时比同等条件下制备出来的PC/ABS合金拥有更好的耐光性。
Using a twin-screw extruder equipment,PC/ASA alloy was prepared,the effects of different ratio of PC and ASA on performance were investigated. The results showed that:in PC/ASA system,PC and ASA ratio is 70∶30,adding compatibility agent SMA 4% and 0. 8% of antioxidant and lubricant,can achieve optimal perform-ance:Izod notched impact strength of 66. 7kJ/m2 , the tensile strength of 56. 1MPa, the bending strength of 82. 3MPa,heat distortion temperature of 105. 6℃;while PC/ABS was prepared under the same conditions,PC/ASA alloy has better lightfastness than PC/ABS.
参考文献
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