高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 2107.

• 论文 • 上一篇    下一篇

新型CNBR/PP全交联型热塑性弹性体的制备与形态、结构及性能研究

徐晓冬1,2, 乔金2, 殷敬华1, 高瑛1, 张晓红2, 辛志荣1, 刘轶群2, 丁永涛1, 高建明2, 张曼莉2, 黄帆2, 宋志海2   

  1. 1. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022;
    2. 中国石油化工股份有限公司北京化工研究院, 北京 100013
  • 收稿日期:2002-09-06 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 殷敬华(1946年出生),男,研究员,博士生导师,主要从事高性能高分子材料方面的研究.E-mail:yinjh@ciac.jl.cn E-mail:yinjh@ciac.jl.cn
  • 基金资助:

    国家重点基础研究专项经费(批准号:G19990648);国家自然科学基金重大项目(批准号:50290092)资助

Preparation, Morphology, Structure Characterization and Properties of Novel CNBR/PP Fully Cross-linked Thermoplastic Elastomers

XU Xiao-Dong1,2, QIAO Jin-Liang2, YIN Jing-Hua1, GAO Ying1, ZHANG Xiao-Hong2, XIN Zhi-Rong1, LIU Yi-Qun2, DING Yong-Tao1, GAO Jian-Ming2, ZHANG Man-Li2, HUANG Fan2, SONG Zhi-Hai2   

  1. 1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. Beijing Research Institute of ChemicaLIndustry, SINOPEC, Beijing 100013, China
  • Received:2002-09-06 Online:2003-11-24 Published:2003-11-24

PDF (PC)

被引次数

19

摘要： 将具有纳米尺度的全交联型羧基丁腈粉末橡胶(CNBR)与聚丙烯(PP)及用甲基丙烯酸环氧丙酯(GMA)官能化的聚丙烯(PP-g-GMA)进行反应共混,制备了一种新型CNBR/PP热塑性弹性体.用原子力显微镜(AFM)和透射电子显微镜(TEM)研究了CNBR/PP热塑性弹性体的形态,加入PP-g-GMA增容剂后,CNBR分散相的粒子尺寸显著降低,分布也趋于均一.与未增容体系相比,增容体系的拉伸强度和断裂伸长率均有大幅度的改善,如CNBR含量为75%时,拉伸强度提高了94%,断裂伸长率增加了136%.用差示扫描量热法(DSC)研究了热塑性弹性体中聚丙烯的结晶行为,在增容体系中,共混前后聚丙烯的结晶温度提高了10℃,表明橡胶粒子或两相界面处形成的反应产物起到了类似成核剂的作用.

关键词: 羧基丁腈粉末橡胶, 官能化聚丙烯, 热塑性弹性体, 反应增容, 形态结构, 性能

Abstract: Anovel CNBR/PPthermoplastic elastomer was prepared by using reactive blending method.Here, a plain PPand a fully cross-linked acrylonitrile-butadiene rubber powders(CNBR) with nanometer dimension and carboxylic end-groups were used as the blending components.And a polypropylene functionalized with glycidyl methacrylate(PP-g-GMA) was used as a compatibilizer.Their morphologies were examined by using AFMAnd TEM.It was found that the size of CNBR dispersed phase of the compatibilized blending system was much smaller and its distribution was much more homogeneous than that of the related uncompatibilized blends.Comparing with the uncompatibilized blends, mechanical properties of compatibilized blends were obviously improved at the same compositions.The DSC data indicated that the crystallization temperature of PPin compatibilized blendSIncreased about 10℃. It could be tentatively explained as that the dispersed CNBR particles or the reactive product formed on the interface of two phase acted as a kind of nucleating agent.

Key words: Acrylonitrile-butadiene rubber powder, Functionalized polypropylene, Thermoplastic elastomer, Reactive compatibilization, Morphology and structure, Property

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