螺杆组合方式对GF增强PET/PBT共混物性能的影响  

Influence of Screw Assemble on Properties of GF Reinforced PET/PBT Blends

作　　者：王建国[1] 梁秀丽[1] 孙东 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031 [2]北方材料科学与工程研究院有限公司余姚所,浙江余姚315400

出　　处：《工程塑料应用》2016年第2期57-60,共4页Engineering Plastics Application

摘　　要：采用同向平行双螺杆挤出机制备玻璃纤维(GF)增强聚对苯二甲酸乙二酯(PET)/聚对苯二甲酸丁二酯(PBT)共混物。在固定组分配比及共混挤出工艺条件的基础上,研究了螺杆不同组合方式,即剪切块数量及排布方式对挤出工艺及GF分散程度和长度的影响,进而对GF增强PET/PBT共混物性能造成的影响,设计出了一种适合GF增强PET/PBT共混物挤出生产的螺杆组合方式,采用该螺杆组合方式制备GF增强PET/PBT共混物,不但挤出工艺稳定可靠,而且产品性能实现最优化。Glass fiber （GF） reinforced poly（ethylene terephthalate） （PET） / poly（butylene terephthalate） （PBT） blends were prepared by melting blend method using a co-rotating parallel twin screw extruder. On the basis of same ratio of components and same process conditions, the influences of different screw assembles on the extruding process, GF length and its dispersion degree were studied, and then the influences of different screw assembles on the properties of the GF reinforced PBT / PET blends were also studied. A type of screw assemble suited to the production of the GF reinforced PET/PBT blend was presented. It is found that, using this type of screw assemble, the production of the GF reinforced PET/PBT blend is smoothly and the products have the best properties.

关 键 词：同向平行双螺杆挤出机 螺杆组合 玻璃纤维 聚对苯二甲酸乙二酯 聚对苯二甲酸丁二酯 共混物 性能 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]