摘要
采用氩等离子体激发及紫外辐射引发技术可以使丙稀酸甲酯接枝共聚到天然橡胶硫化胶膜表面。接枝处理硫化胶膜表面接触角测定结果表明,随着接枝反应的进行,较多的聚丙烯酸甲酯接枝到硫化胶膜表面,使硫化胶膜表面接触角显著下降。采用等离子体激发2min,紫外光照射16min的处理条件,可使硫化胶膜表面与水的接触角由105°下降至约60°。接枝处理硫化胶膜表面形态分析结果表明,接枝后的聚丙烯酸甲酯分子链在硫化胶膜表面互相叠加,使胶膜表面变得粗糙,从而使天然橡胶硫化胶膜表面亲水性能得到改善。
The poly （methyl acrylate） was grafted onto pre-vulcanized natural rubber latex film via Ar-plasma treating and UV-inducing techniques, and the hydrophilic behaviours and the surface morphologies of poly （methyl acrylate）-grafted samples were characterized using Fourier transform attenuated total reflection infrared spectroscopy, surface contact angle meter, scanning electron microscope and atomic force microscope. The results indicate that the poly （methyl acrylate） can be grafted onto the pre-vulcanized natural rubber latex film via Ar- plasma treatment coupled with UV-inducing techniques. Along with the graft copolymerization much more poly （methyl acrylate） was grafted onto the surface of pre-vulcanized natural rubber latex film, and the surface became rough and the surface contact angle decreased gradually, leading to improvement of surface hydrophilic properties of the pre-vulcanized natural rubber latex films.
出处
《热带作物学报》
CSCD
2008年第3期275-279,共5页
Chinese Journal of Tropical Crops
基金
中国热带农业科学院科技基金项目(编号:RKY0434)资助
关键词
氩等离子体
硫化胶膜
丙稀酸甲酯
表面接枝
亲水性
Ar-plasma pre-vulcanized natural rubber latex film methyl acrylate surface modification hydrophilic properties
