聚偏氟乙烯/杉木粉共混膜的制备与性能研究
首发时间:2016-11-22
摘要:研究了杉木粉改性聚偏氟乙烯(PVDF)微滤膜的制备方法及相关性能,采用浸没沉淀相转化法成膜,借助热重分析仪(TG)、万能织物拉伸仪、静滴接触角测量仪等分析手段对改性后的PVDF膜进行了表征与测试。结果证明,随着杉木粉的加入,共混膜的亲水性先增加后减小,纯水通量也呈现先增加后减小的趋势,当加入杉木粉含量为2%时,PVDF膜的亲水性,力学性能,孔隙率提高比较明显。?????
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The preparation and properties of PVDF/china fir powder blend membranes
Abstract:In this paper studied the preparation and relate performance of the poly(vinylidene fluoride)(PVDF)microfiltration membrane modified by china fir powder was prepared and the blend membrane properties were studied. The blend membranes was prepared by immersion-precipitation phase transformation method. The modified membrane was characterized and tested by thermogravimetric analyzer (TG),universal fabric tensile tester,static contact angle measurement analysis instrument. The results showed that with the addition of fir powder, the hydrophilicity of the blend membrane increased firstly and then decreased, the pure water flux was firstly increased and then decreased. When the fir powder content is 2%, the hydrophilicity,mechanical properties and porosity of the blend membranes increased obviously.
Keywords: PVDF china fir powder blending modification blend membrane?????
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No.4709077117009814****
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