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Polyvinylidene fluoride composite film

A polyvinylidene fluoride and composite membrane technology, applied in the field of membrane materials, can solve the problems of difficult cleaning, limited application of polyvinylidene fluoride membrane, organic pollution, etc. Effect

Inactive Publication Date: 2016-08-03
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, polyvinylidene fluoride is hydrophobic, and simple polyvinylidene fluoride membranes are easily polluted by organic matter in water during application, and are not easy to clean, which limits the application of polyvinylidene fluoride membranes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A polyvinylidene fluoride composite film proposed by the present invention, its raw materials include by weight: 30 parts of polyvinylidene fluoride, 1 part of poly(acrylonitrile-acrylic acid-N-vinylpyrrolidone) terpolymer, 3.5 parts of acrylamide , 0.5 parts of carboxybetaine methacrylate, 5 parts of cellulose acetate phthalate, 0.5 parts of inorganic particles, 3.5 parts of polyvinylpyrrolidone, 55 parts of solvent, and 1.5 parts of polyethylene glycol monostearyl ether;

[0022] Wherein, the inorganic particles are mesoporous silica, zeolite molecular sieve loaded with silver ions, nano-calcium carbonate, nano-zinc oxide, modified montmorillonite, and nano-zirconia in a weight ratio of 1:6:1:10:1 : a mixture of 5.

Embodiment 2

[0024] A polyvinylidene fluoride composite film proposed by the present invention, its raw materials include by weight: 20 parts of polyvinylidene fluoride, 5 parts of poly(acrylonitrile-acrylic acid-N-vinylpyrrolidone) terpolymer, 1 part of acrylamide , 2 parts of carboxybetaine methacrylate, 1 part of cellulose acetate phthalate, 2 parts of inorganic particles, 2 parts of polyvinylpyrrolidone, 70 parts of solvent, 0.5 part of polyethylene glycol monostearyl ether;

[0025] Wherein, the inorganic particles are mesoporous silica, zeolite molecular sieve loaded with silver ions, nano-calcium carbonate, nano-zinc oxide, modified montmorillonite, and nano-zirconia in a weight ratio of 5:2:5:3:4 : a mixture of 2.

Embodiment 3

[0027] A polyvinylidene fluoride composite film proposed by the present invention, its raw materials include by weight: 28 parts of polyvinylidene fluoride, 2.5 parts of poly(acrylonitrile-acrylic acid-N-vinylpyrrolidone) terpolymer, 3 parts of acrylamide , 1 part of carboxybetaine methacrylate, 4 parts of cellulose acetate phthalate, 0.9 parts of inorganic particles, 3 parts of polyvinylpyrrolidone, 20 parts of tetramethylurea, 40 parts of triethyl phosphate, polyethylene glycol 1.3 parts of alcohol monostearyl ether;

[0028] Wherein, the inorganic particles are mesoporous silica, zeolite molecular sieve loaded with silver ions, nano-calcium carbonate, nano-zinc oxide, modified montmorillonite, and nano-zirconia in a weight ratio of 2:5:2.3:4.3:1.3 : a mixture of 4.8; wherein, the average particle size of mesoporous silica is 0.25 μm, and the mesoporous diameter is 6-10 nm;

[0029] The polyvinylidene fluoride is modified polyvinylidene fluoride; the modified polyvinylidene...

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Abstract

The invention discloses a polyvinylidene fluoride composite film, the raw materials of which include by weight: 20-30 parts of polyvinylidene fluoride, 1-5 parts of poly(acrylonitrile-acrylic acid-N-vinylpyrrolidone) terpolymer, 1-3.5 parts of acrylamide, 0.5-2 parts of carboxybetaine methacrylate, 1-5 parts of cellulose acetate phthalate, 0.5-2 parts of inorganic particles, 2-3.5 parts of polyvinylpyrrolidone, 55-70 parts of solvent 0.5-1.5 parts of polyethylene glycol monostearyl ether; the inorganic particles are mesoporous silica, zeolite molecular sieve loaded with silver ions, nano-calcium carbonate, nano-zinc oxide, modified montmorillonite, and nano-zirconia. Mixture in weight ratio 1‑5:2‑6:1‑5:3‑10:1‑4:2‑5. The polyvinylidene fluoride composite membrane proposed by the invention has high strength, excellent weather resistance, antibacterial and stain resistance.

Description

technical field [0001] The invention relates to the technical field of membrane materials, in particular to a polyvinylidene fluoride composite membrane. Background technique [0002] Polyvinylidene fluoride is a white powdery crystalline polymer, soluble in various solvents, has the advantages of wide processing temperature range from melting point to decomposition temperature, low processing temperature, low melt viscosity, and easy processing. In addition, it At room temperature, it has high tensile strength, good impact strength, good toughness, high hardness, good wear resistance, strong creep resistance, and good chemical stability. It is not affected by acids, alkalis, strong oxidants and Corroded by halogen, it is an excellent membrane material, which has been widely used in sewage purification treatment and biochemical pharmaceutical industry. However, polyvinylidene fluoride is hydrophobic, and simple polyvinylidene fluoride membranes are easily polluted by organi...

Claims

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Application Information

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IPC IPC(8): B01D71/34B01D69/12B01D67/00
CPCB01D71/34B01D67/0079B01D69/12
Inventor 魏松
Owner 安庆市天虹新型材料科技有限公司
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