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Polyvinylidene fluoride hollow-fiber membrane

A technology of polyvinylidene fluoride and fiber membranes, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve problems such as compression resistance, tensile strength, flux, and softness, etc., and achieve The effect of high flux, high compressive and tensile strength, good softness

Active Publication Date: 2014-03-26
CHANGSHU 3F ZHENFU NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing polyvinylidene fluoride hollow fiber membranes are not ideal in terms of compressive strength, tensile strength, flux, and flexibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A polyvinylidene fluoride hollow fiber membrane is made of the following raw materials:

[0029] 110 parts by mass of polyvinylidene fluoride,

[0030] 2 parts by mass of sodium lauryl sulfate,

[0031] 1 part by mass of ethylene glycol monostearate,

[0032] 2 mass parts average particle diameter is 9nm silicon dioxide,

[0033] 5 parts by mass of dimethylsulfoxide,

[0034] 15 parts by mass of polyvinylpyrrolidone,

[0035] 35 parts by mass of triethyl phosphate,

[0036] 2 mass parts average particle diameter is 20nm calcium carbonate,

[0037] 3 parts by mass of sodium dodecylbenzenesulfonate,

[0038] 5 parts by mass of polyethylene glycol,

[0039] 15 parts by mass of dimethylacetamide,

[0040] 2 parts by mass of sodium laurylalanine,

[0041] 5 parts by mass of deionized water,

[0042] 3 parts by mass of polyvinyl alcohol,

[0043] 2 parts by mass of methylcellulose,

[0044] 25 parts by mass of dimethylformamide,

[0045] 3 parts by mass of cetylt...

Embodiment 2

[0049] A polyvinylidene fluoride hollow fiber membrane is made of the following raw materials:

[0050] 120 parts by mass of polyvinylidene fluoride,

[0051] 2 parts by mass of sodium lauryl sulfate,

[0052] 1 part by mass of ethylene glycol monostearate,

[0053] 2 mass parts average particle diameter is 9nm silicon dioxide,

[0054] 5 parts by mass of dimethylsulfoxide,

[0055] 15 parts by mass of polyvinylpyrrolidone,

[0056] 35 parts by mass of triethyl phosphate,

[0057] 2 mass parts average particle diameter is 20nm calcium carbonate,

[0058] 3 parts by mass of sodium dodecylbenzenesulfonate,

[0059] 5 parts by mass of polyethylene glycol,

[0060] 15 parts by mass of dimethylacetamide,

[0061] 2 parts by mass of sodium laurylalanine,

[0062] 5 parts by mass of deionized water,

[0063] 3 parts by mass of polyvinyl alcohol,

[0064] 2 parts by mass of methylcellulose,

[0065] 25 parts by mass of dimethylformamide,

[0066] 3 parts by mass of cetylt...

Embodiment 3

[0070] A polyvinylidene fluoride hollow fiber membrane is made of the following raw materials:

[0071] 100 parts by mass of polyvinylidene fluoride,

[0072] 2 parts by mass of sodium lauryl sulfate,

[0073] 1 part by mass of ethylene glycol monostearate,

[0074] 2 mass parts average particle diameter is 9nm silicon dioxide,

[0075] 5 parts by mass of dimethylsulfoxide,

[0076] 15 parts by mass of polyvinylpyrrolidone,

[0077] 35 parts by mass of triethyl phosphate,

[0078] 2 mass parts average particle diameter is 20nm calcium carbonate,

[0079] 3 parts by mass of sodium dodecylbenzenesulfonate,

[0080] 5 parts by mass of polyethylene glycol,

[0081] 15 parts by mass of dimethylacetamide,

[0082] 2 parts by mass of sodium laurylalanine,

[0083] 5 parts by mass of deionized water,

[0084] 3 parts by mass of polyvinyl alcohol,

[0085] 2 parts by mass of methylcellulose,

[0086] 25 parts by mass of dimethylformamide,

[0087] 3 parts by mass of cetylt...

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Abstract

The invention discloses a polyvinylidene fluoride hollow-fiber membrane which is prepared from the following raw materials in parts by mass: 100-120 parts of polyvinylidene fluoride, 2 parts of sodium dodecyl sulfate, 1 part of ethylene glycol monostearate, 2 parts of silicon dioxide with the average particle diameter of 9 nm, 5 parts of dimethyl sulfoxide, 15 parts of polyvinylpyrrolidone, 35 parts of triethyl phosphate, 2 parts of calcium carbonate with the average particle diameter of 20 nm, 3 parts of sodium dodecyl benzene sulfonate, 5 parts of polyethyleneglycol, 15 parts of dimethyl acetamide, 2 parts of sodium dodecyl amino propionate, 5 parts of deionized water, 3 parts of polyvinyl alcohol, 2 parts of methyl cellulose, 25 parts of dimethyl formamide, 3 parts of hexadecyl trimethyl ammonium bromide, 1 part of aliphatic amine polyoxyethylene ether and 8 parts of polyoxyethylene. The polyvinylidene fluoride hollow-fiber membrane provided by the invention has higher compression strength and tensile strength, high flux and good flexibleness.

Description

technical field [0001] The present invention relates to polyvinylidene fluoride hollow fiber membranes. Background technique [0002] The existing polyvinylidene fluoride hollow fiber membranes are not ideal in terms of compressive strength, tensile strength, flux, and flexibility. Contents of the invention [0003] The purpose of the present invention is to provide a polyvinylidene fluoride hollow fiber membrane, which has high compressive and tensile strength, high flux, and good flexibility. [0004] In order to achieve the above object, the technical solution of the present invention is to design a polyvinylidene fluoride hollow fiber membrane, which is made of the following raw materials: [0005] 100-120 parts by mass of polyvinylidene fluoride, [0006] 2 parts by mass of sodium lauryl sulfate, [0007] 1 part by mass of ethylene glycol monostearate, [0008] 2 mass parts average particle diameter is 9nm silicon dioxide, [0009] 5 parts by mass of dimethylsulf...

Claims

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Application Information

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IPC IPC(8): B01D71/34B01D69/08
Inventor 徐建林邹建良宗建青仇峰
Owner CHANGSHU 3F ZHENFU NEW MATERIALS CO LTD
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