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电子束辐照对HDPE结构与亲水性能影响的研究
EFFECT OF ELECTRON BEAM IRRADIATION ON STRUCTURE AND HYDROPHILICITY OF HDPE
【摘要】 研究了在空气中电子束辐照所引起的 HDPE分子结构变化以及辐照对 HDPE亲水性的影响”。结果表明 ,通过电子束辐照可在 HDPE分子链上引入含氧极性基团 ,使 HDPE的表面自由能增大 ,极性增强 ,与水的接触角减小。辐照 HDPE的分子量降低 ,分子量分布变窄。
【Abstract】 The effect of electron beam irradiation conditions on the structure of HDPE and its hydrophilicity were studied. The experimental results show that polar groups (mainly carbonyl group) are introduced into the molecular chains of HDPE during electron beam irradiation, the polarity of HDPE is thus increased. Irradiation also causes the degradation of HDPE, its molecular weight is decreased, and molecular weight distribution becomes narrow.
【关键词】 电子束辐照;
高密度聚乙烯;
亲水性;
【Key words】 electron beam irradiation; high density polyethylene; hydrophilicity;
【Key words】 electron beam irradiation; high density polyethylene; hydrophilicity;
【基金】 国家自然科学基金!资助项目 (2 96740 1 8)
- 【文献出处】 高分子材料科学与工程 ,POLYMERIC MATERIALS SCIENCE & CNGINEERING , 编辑部邮箱 ,2000年02期
- 【分类号】O631.3+4
- 【被引频次】10
- 【下载频次】132