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《Journal of Radiation Research and Radiation Processing》 2011-04
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Hydrophilic microfiltration membranes prepared from acryl amide grafted PVDF powder by γ-rays pre-irradiation

YANG Xuanxuan DENG Bo YU Ming YU Yang ZHANG Bowu LI Jingye(Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China)  
Acryl amide(AAm) was grafted onto poly(vinylidene fluoride)(PVDF) powder by a γ-rays pre-irradiation induced graft polymerization technique.The DG values of the PVDF-g-PAM powder were determined by fluorine elemental analysis.Effects of grafting time on DG of PVDF-g-PAM powder at the same monomer con-centration were studied.And modified powder was dissolved in NMP and added PVP as pore-forming agent.The mi-crofiltration(MF) membranes were cast using a phase inversion method.The contact angle,degree of swelling,water flux and antifouling properties of those modified MF membranes were investigated.The results indicated that the hy-drophilicity of modified MF membranes was improved obviously and the antifouling property of modified MF mem-branes(DG of 13%) was better than that of the pristine membrane.
【Fund】: 上海市自然科学基金(10ZR1436700 11ZR1445400);; 中国科学院知识创新工程领域前沿及新锐计划项目资助
【CateGory Index】: TB43
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