CAJ | 학술논문

采用双螺杆熔融挤出的方法制备玻璃纤维增强聚对苯二甲酸丁二酯(PBT)／聚对苯二甲酸乙二酯(PET)共混物。研究了PBT与PET不同比例对PBT／PET共混物性能的影响。在此基础上，研究了成核剂及不同种类的增韧剂对共混物性能的影响。结果表明，成核剂对提高共混物的相容性及热变形温度有重要作用，乙烯–甲基丙烯酸甲酯–丙烯酸缩水甘油酯三元共聚物型增韧剂(AX8900)质量分数为0.5%时，不影响共混物的耐热性及拉伸和弯曲强度，而且可以大大提高PBT／PET共混物的冲击强度。
채용쌍라간용융제출적방법제비파리섬유증강취대분이갑산정이지(PBT)／취대분이갑산을이지(PET)공혼물。연구료PBT여PET불동비례대PBT／PET공혼물성능적영향。재차기출상，연구료성핵제급불동충류적증인제대공혼물성능적영향。결과표명，성핵제대제고공혼물적상용성급열변형온도유중요작용，을희–갑기병희산갑지–병희산축수감유지삼원공취물형증인제(AX8900)질량분수위0.5%시，불영향공혼물적내열성급랍신화만곡강도，이차가이대대제고PBT／PET공혼물적충격강도。
A glass fiber reinforced PBT/PET compound was prepared by melting blend method using a double screw extruder. The effects of the ratio of PBT and PET on properties of the blends were investigated. Further more,the effects of the nucleating and toughening agent on PBT/PET compound were also investigated. The results show that the nucleating agent could obviously enhance the compatibility and heat distortion temperature of PBT/PET blends. With a 0.5% addition,the AX8900 toughening agent could obviously heighten the charpy impact strength of the alloy material with no obvious depression on the tensile and bending strength and heat distortion temperature of the blends prepared thus.