摘要
以丙烯酸甲酯为单体,通过乳液聚合制得聚丙烯接枝丙烯酸甲酯(PP-g-MA)的新型增容剂,并用红外光谱表征了接枝产物。考察了反应条件对接枝率和熔融指数(MFR)的影响;研究了PP-g-MA对复合材料力学性能的影响。结果表明,在70℃下,引发剂及单体用量分别为PP质量的7%和10%,反应2.5 h时,接枝率最高可达到3.52%,MFR可达到25 g/10 min,PPg-MA是良好的相容剂,可大大提高复合材料的力学性能。
The grafted production of polypropylene grafted with methyl acrylate(PP-g-MA) was prepared by the method of emulsion polymerization.The graft was characterized by Fourier transform infrared spectroscopy.The effects of react condition on the graft ratio were studied.The results showed that the graft ratio could reach to 3.52%and MFR to 25g/10 min when the initiator was 7%,MA concentration was 10%,reaction temperature was 70 ℃,grafting time was 2.5 hours,and PP-g-MA could evidently improve the interface compatibility and mechanical properties of the composite material.
出处
《武汉生物工程学院学报》
2015年第4期242-245,共4页
Journal of Wuhan Bioengineering Institute
基金
武汉市教育局资助项目(2007k70)
关键词
聚丙烯
丙烯酸甲酯
乳液接枝
接枝率
力学性能
polypropylene
methyl acrylate
emulsion polymerization
graft ratio
mechanical properties
