中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (5): 47-50.

• 研究论文 • 上一篇    下一篇

非均相接枝共聚制备极性聚丙烯

陈国华, 颜文礼   

  1. 华侨大学应用化学系, 泉州 362011
  • 收稿日期:1997-03-03 修回日期:1997-07-10 出版日期:1997-10-10 发布日期:1997-10-10
  • 基金资助:
    国家自然科学基金

Preparation of Polypropylene-g-α-Methylacrylic Acid by Heterogeneous Graft Copolymerizationi

Chen Guohua, Yan Wenli   

  1. Department of Applied Chemistry, Huaqiao University, Quanzhou 362011
  • Received:1997-03-03 Revised:1997-07-10 Published:1997-10-10 Online:1997-10-10

PDF

562

被引次数

16 | 2

摘要： 在甲苯-水介质中制备了聚丙烯-g-甲基丙烯酸(PP-g-MAA).用正交实验设计研究了引发剂、单体用量及反应时间等因素对反应的影响。用裂解色谱、扫描电镜对接枝物进行表征。接枝聚丙烯对极性材料如尼龙、铝箔、碳酸钙的界面亲合力有大幅度提高

关键词: 非均相接枝共聚, 接枝聚丙烯, 层压复合, 填充, 界面亲合性

Abstract: Grafting of α-methylacrylic acid onto the surface of PP powder was performed in water toluene medium. The effect of monomer and initiator(benzoyl peroxide)concentrations, reaction time on graft degree and graft efficiency were investigated by using the orthogonal design method. The grafted PP was characterized by means of PGC and SEM. The result showed that the monomer concentration effected the graft degree and graft efficiency greatly. The highest graft degree was 35.2% and the graft efficiency was 86.4%. The grafted PP was laminated with polar materials, such as aluminium foil and nylon, and showed much stronger adhesion than unmodified PP. The grafted PP also enhanced the interfacial surface affinity between PP and CaCO3 in PP filled composite, and the tensile strength and impact strength of the composite was improved greatly.

Key words: heterogeneous graft copolymerization, graft polypropylene, laminated composite, filled composite, interfacial surface affinity

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