摘要
研究了再生胶/聚氯乙烯(RR/PVC)共混体系中第三组分的种类及用量,橡塑并用比和高温返炼等对该体系动态硫化共混物力学性能的影响。结果表明,NBR-18,NBR-26及N-41(日本产丙烯腈含量为29％的NBR)是优良的增容剂,能显著提高该共混物的力学性能。当RR/PVC/NBR-18=60/40/10(质量比)时,共混物的拉伸强度为12.2MPa,撕裂强度为45.5KN/m,扯断伸长率为290％,而不加NBR-18时则分别为7.8MPa,267KN/m和30％。电镜分析结果表明,增容剂加强了多相体系的分散性和均匀性,促进了相界面间的相互作用。这种动态硫化的共混物是热塑性弹性体。
The effects of third component and the ratio of rubber to resin on the mechanical properties of the dynamically vulcanizated reclaimed rubber /polyvinyl chloride (RR /PVC) blends were studied. The results showed that NBR- 18, NBR-26 and N-41 were good compatibilizers for the RR /PVC blends, and increased themechanical properties of blend significantly. The compatibilizing mechanism was discussed. The blends were thermoplastic elastomers with good roll - processing behavior.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1993年第3期165-167,共3页
China Synthetic Rubber Industry
关键词
再生胶
聚氯乙烯
共混
力学性质
reclaimed rubber
polyvinyl chloride
nitrile rubber
compatibilizer
rub- ber - resin blends
mechanical property
