加工条件对聚丁二酸丁二醇酯/聚丙烯原位微纤化共混物形态的影响  

EFFECTS OF PROCESSING ON THE MORPHOLOGY OF POLY(BUTYLENE SUCCINATE)/POLYPROPYLENE IN SITU MICROFIBER BLENDS

作　　者：伍雄俊[1] 黄汉雄[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,塑料橡胶装备及智能化研究中心,广州510640

出　　处：《工程塑料应用》2010年第6期31-34,共4页Engineering Plastics Application

摘　　要：采用单螺杆挤出机组合狭缝机头制备聚丁二酸丁二醇酯(PBS)/聚丙烯(PP)原位微纤化共混物,研究了加工温度、螺杆转速对其形态的影响。结果表明,机头温度160℃时形成的纤维比机头温度170℃时纤维平均直径小,长径比大,纤维区域厚度百分数(Φ值)高;当机头温度为170℃、螺杆转速为20r/min时,在狭缝机头出口靠近上下壁面处开始形成纤维,随着转速的提高,纤维平均直径逐渐减小,Φ值增大。Poly（butylene succinate）/polypropylene（PBS/PP） in situ microfiber blends were prepared by using a single screw extruder equipped with a slit die. The effects of melt temperature and screw speed on the morphology were investigated. The results showed that PP fibres with smaller average diameter, higher length-to-diameter ratio, higher value of Φ were formed when die temperature was 160℃ than 170℃. PP fibres were formed at the slit die exit where near the wall with die temperature of 170℃ and screw speed of 20 r/min. As screw speed increased, the fiber average diameter decreased and the value of Φ increased.

关 键 词：聚丁二酸丁二醇酯 聚丙烯 原位微纤 形态 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]