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POROUS MEMBRANE AND A METHOD FOR MANUFACTURING THE MEMBRANE, CAPABLE OF MINIMIZING ENERGY CONSUMPTION AND MANUFACTURING THE MEMBRANE HAVING A HIGH MECHANICAL STRENGTH
POROUS MEMBRANE AND A METHOD FOR MANUFACTURING THE MEMBRANE, CAPABLE OF MINIMIZING ENERGY CONSUMPTION AND MANUFACTURING THE MEMBRANE HAVING A HIGH MECHANICAL STRENGTH
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机译:能够最小化能量消耗并制造具有高机械强度的膜的多孔膜及其制造方法
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PURPOSE: A porous membrane and a method for manufacturing the porous membrane are provided to obtain a high mechanical strength and a excellent water transmission degree to stably control transmission amount.;CONSTITUTION: A porous membrane has a bead structure including a plurality of spherical crystallites. A plurality of macro voids which are divided by a plurality of spherical crystallites are formed on the outer surface. Each spherical crystallite is a microporous spherical crystallite in which many minute holes are formed on the surface. Water transmission degree which is measured at under nitrogen pressure of 1.0 - 1.5 kg / cm^2 is 1.20(ml/cm^2)·(min)-1·(kg/cm^2) -1 or greater. A rejection about a particle having a diameter of 0.07μm is 99% or greater. A compaction index which is defined as the following equation is 0.50 or less. Equation:(Lp1.0 - Lp1.5) / Lp1.0 IN the equation lp1.0 is the water transmission degree measured under 1.0 kg / cm^2 pressure and Lp1.5 is the water transmission degree measured under 1.5 kg / cm^2 pressure.;COPYRIGHT KIPO 2010
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机译:目的:提供一种多孔膜及其制造方法,以获得高机械强度和优异的透水度以稳定地控制透过量。组成:多孔膜具有包括多个球形微晶的珠状结构。在外表面上形成由多个球形微晶划分的多个宏观空隙。每个球形微晶是在表面上形成许多微小孔的微孔球形微晶。在1.0-1.5kg / cm 2的氮气压力下测得的透水度为1.20(ml / cm 2)·(min)-1·(kg / cm 2)-1或更大。直径为0.07μm的颗粒的排斥率为99%或更大。由下式定义的压实指数为0.50或更小。公式:(Lp1.0-Lp1.5)/ Lp1.0在公式lp1.0中是在1.0 kg / cm ^ 2压力下测得的透水度,Lp1.5是在1.5 kg / cm时测得的透水度^ 2压力。; COPYRIGHT KIPO 2010
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