摘要
通过考察聚氨酯化学体系和加工工艺条件,确定了合适的聚氨酯化学体系和合适的加工工艺条件,进而采用反应挤出一步法成功地合成了聚氨酯改性PVC共混材料,并对其性能进行了研究。结果表明,合适用量聚氨酯的引入共混改性,不仅能明显改善PVC的加工性能,而且还能在保持PVC高的拉伸强度和高的弯曲强度基本不变的情况下,显著提高材料的抗冲强度,制得PVC/PU共混硬制品。
PU/PVC blending materials have been prepared by one-step reactive ex-
trusion technology (RET) on the basis of studying on polyurethane chemical system and techno-logical procedure of RET PU/PVC blending. The properies of PU/PVC blending materials have been experimentally studied,and the results show that not only the processing property of such PVC material is clearly improved,bud also their mechanical properties are greatly increased.
出处
《材料导报》
EI
CAS
CSCD
北大核心
1998年第4期57-60,56,共5页
Materials Reports
关键词
聚氨酯
聚氯乙烯
反应挤出
改性
拉伸强度
poly urethane, PVC, reactive extrursion, blending modif ication, property
