Composite semi-permeable membrane

Composite semi-permeable membrane

  • CN 105,705,222 A
  • Filed: 10/31/2014
  • Published: 06/22/2016
  • Est. Priority Date: 11/05/2013
  • Status: Active Grant
First Claim
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1. a composite semipermeable membrane, it is to have porous polymer layer at the one side of nonwoven layer and have the composite semipermeable membrane of polyamide-based separating. functional layer on this porous polymer layer, wherein, ratio formed by the thickness of described porous polymer layer and the thickness of nonwoven layer is 0.22~

  • 0.45。

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