CR/PS互穿网络共混物的研究

邓涛，王雪怡，赵树高
（青岛科技大学 橡塑材料与工程教育部重点实验室，山东 青岛266042）

摘要：以CR和苯乙烯单体为原料，二乙烯基苯（DVB）为苯乙烯的交联剂，采用分步合成法制备CR/聚苯乙烯（PS）互穿网络共混物。结果表
明，苯乙烯用量为50份、交联剂DVB用量为2.5份时，CR/PS互穿网络共混物综合物理性能较好，并出现应力屈服现象，表现出部分塑料性质；FTIR和SEM分析证明在此条件下制备的共混物形成了较完整的互穿网络结构。
关键词：CR；PS；互穿网络共混物

中图分类号：TQ333.5；TQ334.3文献标识码：A文章编号：1000-890X(2007)01-0005-05
作者简介：邓涛（1967-），男，山东青岛人，青岛科技大学副研究员，硕士，主要从事高分子材料加工改性方面的教学与科研工作。


Study on CR/PS IPN blend

DENG Tao,WANG Xueyi,ZHAO Shugao
(Qingdao University of Science and Technology,Qingdao266042,China)

Abstract:A CR/polystyrene(PS) IPN blend was prepared by stepwise synthesis based on CR and styrene monomer and using divinyl benzene(DVB) as crosslinking agent of PS.The results showed that a CR/PS IPN blend with better comprehensive physical properties was obtained and the stress yield appeared expressing the partly plastic nature of the blend when 50 phr PS and 2.5 phr DVB were used;and it was found by FTIR and SEM that a more complete IPN structure was formed in the 
blend prepared under the above conditions.
Keywords:CR;PS;IPN polymers

　

　

　

　

主成分回归法在PU物理性能关系分析中的应用

付辉，刘晓勇，张海，汪国强
（华南理工大学 数学科学学院，广东 广州510640）

摘要：采用主成分回归法、利用聚氨酯（PU）物理性能间存在的相互制约关系，预测PU的撕裂强度，并与实测值进行比较。结果表明，采用
主成分回归法可以较为精确地预测PU的撕裂强度以及其它物理性能，对配方的优化设计具有重要意义。
关键词：聚氨酯；主成分回归法；撕裂强度

中图分类号：TQ334.1;O212.1文献标识码：A文章编号：1000-890X(2007)01-0010-04
作者简介：付辉（1979-），女，河南信阳人，现在广东技术师范学院计算机系工作，硕士，主要从事数理统计与智能计算研究。


Analysis of correlation among physical properties of PU 
by principle component regression

FU Hui,LIU Xiaoyong,ZHANG Hai,WANG Guoqiang
(South China University of Technology,Guangzhou510640,China)

Abstract:The tear strength of PU was prepared by analyzing the interactive correlation among physical properties of PU with principle component regression and 
compared to the measured value.The results showed that the tear strength and other physical properties of PU could be accurately predicted with principle component 
regression,which would be beneficial to optimize the formulation of PU compound.
Keywords:PU;principle component regression;tear strength

　

　

　

　

MVQ海绵老化性能的研究

周红萍，李敬明，何强，韦兴文
（中国工程物理研究院 化工材料研究所，四川 绵阳621900）

摘要：研究经过6个月常温贮存、60 ℃老化和60 ℃加载老化试验后甲基乙烯基硅橡胶（MVQ）海绵性能的变化。结果表明，经过常温贮存和60 ℃老化后的MVQ海绵松弛率增大，厚度、破坏应变和损耗因子（tanδ）都无明显变化，说明MVQ海绵具有较好的耐热老化性能；经过60 ℃加载老化后MVQ海绵明显变薄，破坏应变大幅度降低，松弛率有一定程度增大，tanδ略有减小，说明加载因素对MVQ海绵的性能有较大影响。
关键词：甲基乙烯基硅橡胶；海绵；老化；加载老化；损耗因子

中图分类号：TQ333.93文献标识码： A文章编号：1000-890X(2007)01-0014-03
作者简介：周红萍（1977-），女，四川德阳人，中国工程物理研究院化工材料研究所工程师，硕士，主要从事材料检测工作。


Study on aging properties of MVQ foam 

ZHOU Hongping,LI Jingming,HE Qiang,WEI Xingwen
(Institute of Chemical Materials,CAEP,Mianyang621900,China)

Abstract:The changes of the physical properties of MVQ foam test pieces after aging for 6 monthes at room temperature,60 ℃ and 60 ℃ + loading respectively were investigated.The results showed that the relaxtion rates of the test pieces aged at room temperature and 60 ℃ increased,but their thickness,breakdown strain and tanδ changed little indicating that MVQ foam had better heat resistance;and the thickness and breakdown strain of the test piece aged at 60 ℃ + loading decreased significantly,its relaxation rate increased at a certain level and its tanδ decreased a little indicating that the loading had greater effect on the properties of MVQ.
Keywords:MVQ;foam;aging;aging at loading;tanδ