摘要
通过高能电子束预辐照接枝丙烯酸（AA）／对苯乙烯磺酸钠（SSS）对PTFE多孔膜进行亲水改性，并研究了单体浓度、辐照剂量等对接枝率，接枝反应对多孔膜表面形貌膜和化学组成以及亲水性的影响。研究结果表明接枝率随混合单体中AA含量增加而增大，而且随辐照剂量的提高而增大，PTFE多孔膜的接枝覆盖层增加膜表面的亲水基团含量，同时对膜的亲水改性效果能保持稳定。
Polytetrafluoroethylene porous membranes were pre-irradiated by electron beam in vacuum, and then grafted with binary monomer solution of acrylic acid （AA） and sodium 4-styrenesulfonate （SSS）. The effect of monomer condensation and irradiation dose on degree of grafting, and the surface morphological and chemical changes after grafting reaction, as well as the surface hydrophilicity of the modified membrane, were investigated. The results showed that the degree of grafting increased with AA content of binary monomers and irradiation dose. The surface grafting layer improved hydrophilicity and modifying stability of the porous membrane.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A07期2738-2740,共3页
Journal of Functional Materials
基金
国家重点基础研究发展计划（973计划）资助项目（2003CB615705）
关键词
辐照
接枝
聚四氟乙烯
多孔膜
irradiation
graft
polytetrafluoroethylene
porous membranes
