Bacterium-resistant hydrophilic polypropylene microporous film

A polypropylene microporous membrane and hydrophilic technology, applied in the field of polypropylene membrane, can solve the problems of unsatisfactory antibacterial performance, hinder the expansion of application fields, and easily cause pollution, etc., to achieve improved microscopic pore structure and excellent chemical resistance antibacterial performance

Inactive Publication Date: 2016-11-16
安庆市天虹新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface energy of polypropylene is low, the hydrophobicity is strong, and it is easy to be charged with static electricity, which limits the application of its microporous membrane in the separation of aqueous media. It is easy to cause pollution during use, and the antibacterial performance is not very ideal, and it is easy to breed bacteria. , hindering the further expansion of its application field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The present invention proposes an antibacterial hydrophilic polypropylene microporous membrane. Its raw materials include 80 parts by weight of polypropylene, 5 parts of ethylene-vinyl alcohol copolymer, 5 parts of maleic anhydride grafted polypropylene, and phthalic acid. 20 parts of dibutyl formate, 35 parts of dioctyl terephthalate, 3 parts of corn oil, 8 parts of modified chitosan, 0.1 part of acetic acid, 1 part of ethylene glycol diglycidyl ether, 0.1 part of epichlorohydrin , 1.5 parts of p-dimethyldibenzylidene sorbitol, 0.3 parts of pimelic acid, 0.5 parts of N,N'-dicyclohexyl-2,6-naphthalenediformamide, 0.8 parts of carbon black, 0.2 parts of barium sulfate, 1 part of nano titanium dioxide, 1 part of magnesium perchlorate, 1.5 parts of cerium oxide, 0.5 parts of alumina.

Embodiment 2

[0019] The present invention proposes an antibacterial hydrophilic polypropylene microporous membrane, the raw materials of which by weight include: 40 parts of polypropylene, 12 parts of ethylene-vinyl alcohol copolymer, 2 parts of maleic anhydride grafted polypropylene, and phthalic acid 35 parts of dibutyl formate, 15 parts of dioctyl terephthalate, 15 parts of corn oil, 3 parts of modified chitosan, 0.5 part of acetic acid, 0.1 part of ethylene glycol diglycidyl ether, 0.8 part of epichlorohydrin , 0.2 parts of p-dimethyldibenzylidene sorbitol, 2 parts of pimelic acid, 1 part of N,N'-dicyclohexyl-2,6-naphthalenediformamide, 0.1 part of carbon black, 1 part of barium sulfate, 0.1 part of nano titanium dioxide, 3 parts of magnesium perchlorate, 0.1 part of cerium oxide, and 2 parts of alumina.

Embodiment 3

[0021] The present invention proposes an antibacterial hydrophilic polypropylene microporous membrane, whose raw materials by weight include: 60 parts by weight of polypropylene, 8 parts of ethylene-vinyl alcohol copolymer, 4 parts of maleic anhydride grafted polypropylene, and phthalic acid 28 parts of dibutyl formate, 30 parts of dioctyl terephthalate, 8 parts of corn oil, 6.5 parts of modified chitosan, 0.32 parts of acetic acid, 0.8 parts of ethylene glycol diglycidyl ether, 0.5 parts of epichlorohydrin , 1.2 parts of p-dimethyldibenzylidene sorbitol, 1 part of pimelic acid, 0.8 parts of N,N'-dicyclohexyl-2,6-naphthalenediformamide, 0.5 parts of carbon black, 0.8 parts of barium sulfate, 0.3 parts of nano-titania, 2.2 parts of magnesium perchlorate, 0.8 parts of cerium oxide, 1.5 parts of alumina;

[0022] Wherein, the modified chitosan is prepared according to the following process: adding montmorillonite into water to obtain a suspension, and then adding zinc nitrate and co...

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PUM

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Abstract

The invention discloses an antibacterial hydrophilic polypropylene microporous membrane, the raw material of which comprises: polypropylene, ethylene-vinyl alcohol copolymer, maleic anhydride grafted polypropylene, dibutyl phthalate, terephthalic acid Dioctyl esters, corn oil, modified chitosan, acetic acid, ethylene glycol diglycidyl ether, epichlorohydrin, p-dimethyldibenzylidene sorbitol, pimelic acid, N,N'‑bicyclo Hexyl‑2,6‑naphthalene dicarboxamide, carbon black, barium sulfate, nano titanium dioxide, magnesium perchlorate, cerium oxide, aluminum oxide. The antibacterial and hydrophilic polypropylene microporous membrane proposed by the invention has good antibacterial property, excellent hydrophilicity and antifouling performance, and high strength, toughness and porosity.

Description

Technical field [0001] The invention relates to the technical field of polypropylene membranes, in particular to an antibacterial hydrophilic polypropylene microporous membrane. Background technique [0002] Polypropylene is a thermoplastic with an average molecular weight of 100,000 to 150,000 and a specific gravity of 0.89-0.91cm 3 , The melting point is 164~170℃. Since polypropylene molecules are formed by the catalytic polymerization of non-polar propylene, the molecular structure contains carbon-carbon and carbon-hydrogen saturated bonds, so it has excellent electrical insulation and chemical stability. Due to its excellent performance, polypropylene is recognized as a kind of general-purpose polymer with great potential for preparing separation membrane materials. It has been widely used in battery industry, sewage purification, water treatment, battery diaphragm materials, and biomedical applications. Separation and other aspects. However, polypropylene has low surface e...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L51/06C08L5/08C08K13/02C08K5/12C08K5/1515C08K5/092C08K5/20C08K3/04C08K3/30C08K3/22C08K3/24C08B37/08
CPCC08L23/12C08B37/003C08L2203/16C08L2205/02C08L2205/035
Inventor 魏松
Owner 安庆市天虹新型材料科技有限公司
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