化学发泡法制备自结皮聚双环戊二烯泡沫  

Preparation of Self-Skinning Polydicyclopentadiene Foams by Chemical Blowing Method

作　　者：陈国伟[1] 赫玉欣[1] 李旭阳[1] 刘秋菊[1] 张玉清[1] 

机构地区：[1]河南科技大学高分子科学与纳米技术重点实验室,河南洛阳471021

出　　处：《高分子材料科学与工程》2015年第5期149-153,共5页Polymer Materials Science & Engineering

基　　金：河南省杰出人才基金支持(074200510019)

摘　　要：采用化学发泡法制备了聚双环戊二烯(PDCPD)泡沫塑料,研究了催化剂比例、模具温度、发泡剂含量等主要因素对泡沫性能的影响。结果表明,模具温度为60~70℃,物料摩尔比n(DCPD)/n(WCl6·WOCl4)/n(Al Et2Cl)=1300/1/30左右,发泡剂质量分数不低于0.6%时,得到闭孔结构的自结皮硬质PDCPD泡沫。PDCPD泡沫材料的密度最低可达0.375 g/cm3,比压缩强度可达30.24 MPa/(g·cm-3),结皮硬度为邵氏D65-82度,分解温度可达到450℃,具有良好的力学强度和热稳定性。Polydicyclopentadiene( PDCPD) foam can be made by chemical blowing method. The influence of catalysts proportion,mold temperature and content of blowing agent on the properties of PDCPD foams was investigated. The results indicate that when the mold temperature gets 60 ~ 70 ℃,the catalysts proportion( n( DCPD / n( WCl6·WOCl4) /n( Al Et2Cl)) is about 1300 /1 /30 and the content of blowing agent is 0. 6% or higher,self-skinning hard PDCPD foams with closed-cell structure were made. The density of PDCPD foams can be as low as 0. 375 g / cm3,with the surface hardness at Shore 64-82 HD. The decomposition temperature of PDCPD foam gets as high as 450 ℃,showing excellent mechanical properties and thermal stability.

关 键 词：聚双环戊二烯泡沫 硬质塑料泡沫 自结皮泡沫 化学发泡法 

分 类 号：TQ328[化学工程—合成树脂塑料工业]