摘要
介绍了利用凝固涂层的技术研制出综合性能良好的微孔薄膜复合过滤介质,其中的薄膜具有良好的弹性,能完全匹配基布的各种力学形变,且与基布黏合良好。说明了微孔薄膜的孔径可以人为控制.随不同的制膜条件孔径一般在1.41-9.12μm范围内变化,薄膜的孔隙度最小不低于52％,以及具有良好的耐酸碱能力和可控疏水性;同时,复合过滤介质的抗拉强度主要由基布承担,基布复合微孔薄膜后的经向、纬向断裂强度仅提高1.75％和2.38％,经向、纬向断裂伸长率提高7.14％和6.26％;复合滤布表面平整光滑,其最大静摩擦系数小于常规的机织滤布,且具有较高的透水能力。
A compound micro - membrane filter medium with some excellent properties was developed by coating method. And the micro - membrane is elastic, matched with the basic cloth's mechanical deformation, and adhered to the base firmly. Its aperture is adjustable factitiously and fluctuant in range of 1.41-9.12μm under various coating conditions. The minimum membrane porosity is 52%. The membrane is of anti - acid/ alkaline, controllabe hydrophobe and smooth surface. The breaking tensile strength of the compound filter medium is beared by the base cloth, whose tensile strength is enhanced 1.75 % in warp and 2.38 % in weft and breaking elongation is rised about 7.14% in warp and 6.26% in weft. The maximum frictional coefficient of the membrane filter medium has a high permeability, and the surface is smooth.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2004年第1期62-67,共6页
Chemical Industry and Engineering Progress
基金
国家"九五"攻关计划项目(No.95526010501)。
