公开(公告)号：WO2017086997A1

公开(公告)日：2017-05-26

申请号：PCT/US2015/061925

申请日：2015-11-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GOH, Li May ,  COSTA, Lawrence C. ,  ZHANG, Kai ,  XIAO, Dezhong ,  KEE, Kia Kian ,  WEE, Kin Ho ,  WU, Ranting

IPC: B01D67/00 ,  B01D69/12 ,  B01D71/38

CPC classification number: B01D67/0016 ,  B01D67/0006 ,  B01D67/0011 ,  B01D67/003 ,  B01D69/125 ,  B01D71/38 ,  B01D71/56 ,  B01D2323/18 ,  B01D2323/30 ,  B01D2323/40

Abstract: Disclosed here are semi-permeable cross-linked polyvinyl alcohol (PVA) based membranes that can be used as supports for water purification membranes, and methods for their production. The cross-linked PVA-based membranes are cross-linked with the reaction product of poly-epoxides and -OH groups from the PVA polymers. Methods according to the present disclosure include crosslinking dissolved PVA and dissolved poly-epoxides, casting the cross-linked PVA, and coagulating the cast polymer in a phase immersion precipitation process.

Abstract translation: 这里公开的是可用作水净化膜的载体的半渗透交联聚乙烯醇（PVA）基膜，以及它们的生产方法。 交联PVA基膜与来自PVA聚合物的聚环氧化物和-OH基团的反应产物交联。 根据本公开的方法包括交联溶解的PVA和溶解的聚环氧化物，铸造交联的PVA，并且在沉淀相沉淀过程中凝结铸塑聚合物。