聚氨酯改性有机硅体系性能的研究  

A STUDY ON PROPERTIES OF POLYSILICONE MODIFIED WITH RICINOLEIN POLYURETHANE

作　　者：刘俊峰[1] 胡友慧[1] 

机构地区：[1]西安交通大学环境与化学工程学院,陕西西安710049

出　　处：《高分子材料科学与工程》2000年第2期106-108,共3页Polymer Materials Science & Engineering

摘　　要：以蓖麻油聚氨酯 (PU)改性有机硅树脂 ,研究了 PU含量及制备工艺对改性体系热性能及抗冲击性能的影响 ,结果表明 ,PU的含量对改性体系的热分解行为及抗冲击性有明显影响 ;制备工艺对改性体系的抗冲击性有较大影响 ,但对热性能影响不大。Polysilicone was midified with ricinolein polyurethane, and the effect of preparation method and PU concentration in the system on the heat stability and impact behavior of modified systems were investigated. It is shown that the heat stability and impact strength of polyurethane polysilicone systems clearly depend on the content of polyurethane. The preparation methods of modification systems have obviously influence on its impact strength, and small on its heat stability.

关 键 词：聚氨酯 有机硅 改性 热稳定性 

分 类 号：TQ323.806[化学工程—合成树脂塑料工业] TQ324.21