Separation membrane element and method for producing composite semipermeable membrane

Separation membrane element and method for producing composite semipermeable membrane

  • CN 103,025,412 A
  • Filed: 08/03/2011
  • Published: 04/03/2013
  • Est. Priority Date: 08/11/2010
  • Status: Active Application
First Claim
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1. separating film element, it comprises composite semipermeable membrane, and described composite semipermeable membrane comprises micropore supporter and the polyamide work of separation ergosphere that is deposited thereon, and described micropore supporter comprises base material and porous support layer,Wherein the yellow degree of polyamide work of separation ergosphere is 10-40, and the material concentration of extracting from base material is 1.0 * 10 -3Wt% or lower.

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