Multilayer PTFE hollow fibertype membrane for membrane distillation and manufacturing method thereof

다층 ptfe 중공형 막증류 분리막 및 그 제조방법

Abstract

The present invention relates to a multi-layered PTFE hollow membrane for membrane distillation and a manufacturing method thereof. The multi-layered PTFE hollow membrane for membrane distillation according to one embodiment of the present invention shows high removal efficiency of particulate contaminants through the control of fine pores and improves backwash efficiency by utilizing pores in an outer active layer as a filter layer by minutely adjusting the pores. The multi-layered PTFE hollow membrane for membrane distillation includes: a hollow; a PTFE support layer which is formed along the outer periphery of the hollow; and an ultra high molecular weight polyethylene layer with a melting point lower than the melting point of the PTFE support layer.
본 발명의 다층 PTFE 중공형 막증류 분리막은 미세한 기공조절을 통하여 입자상 오염물질의 높은 제거 효율 나타내고, 외부 활성층의 기공을 미세하게 조절하여 여과층으로 활용하여 역세 효율을 향상시킬 수 있다.

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