STUDY OF COMPOSITE MEMBRANE OF CELLULOSE ACETATE OR POLYVINYL ALCOHOL BLENDED WITH METHYLMETHACRYLATE-ACRYLIC ACID COPOLYMER FOR PERVAPORATION SEPARATION*

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STUDY OF COMPOSITE MEMBRANE OF CELLULOSE ACETATE OR POLYVINYL ALCOHOL BLENDED WITH METHYLMETHACRYLATE-ACRYLIC ACID COPOLYMER FOR PERVAPORATION SEPARATION*

Papers | Updated：2021-06-21

- STUDY OF COMPOSITE MEMBRANE OF CELLULOSE ACETATE OR POLYVINYL ALCOHOL BLENDED WITH METHYLMETHACRYLATE-ACRYLIC ACID COPOLYMER FOR PERVAPORATION SEPARATION*
- Vol. 17, Issue 3, Pages: 299-302(1999)
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- Published：20 June 1999
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STUDY OF COMPOSITE MEMBRANE OF CELLULOSE ACETATE OR POLYVINYL ALCOHOL BLENDED WITH METHYLMETHACRYLATE-ACRYLIC ACID COPOLYMER FOR PERVAPORATION SEPARATION*[J]. 1999, 17(3): 299-302.
DOI：

STUDY OF COMPOSITE MEMBRANE OF CELLULOSE ACETATE OR POLYVINYL ALCOHOL BLENDED WITH METHYLMETHACRYLATE-ACRYLIC ACID COPOLYMER FOR PERVAPORATION SEPARATION*[J]. 1999, 17(3): 299-302. DOI：

摘要

In this paper

methylmethacrylate-acrylic acid MMA-AA hydrophilic and hydrophobic copolymerswere prepared by copolymerization for preparing membrane materials. The composite membrane of celluloseacetate (CA) blended with MMA-AA hydrophobic copolymer was used for the separation of methanol frompentane-methanol mixture. When the methanol concentration was only 1 wt%

the permeate flux stillmaintained at 350 g/m2h and separation factor was as big as 800. The composite membrane of PVA(polyvinyl alcohol) blended with MMA-AA hydrophilic copolymer was used for the separation of ethanol-water mixture.The permeate flux was increased to 975g/m2h at 74℃ and the separation factor reached 3000 at 25℃.The PVA/MMA-AA blended membrane surface modified by ammonia plasma was also investigated for separating ethanol-water mixture.Both permeate flux and separation factor of the membrane was improved.However

there was on obvious difference of plasma treatment time in the interval of 20～40 min.

Abstract

In this paper

there was on obvious difference of plasma treatment time in the interval of 20～40 min.

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