Porous filtration film

A filter membrane and porous fiber technology, applied in the field of filter membrane, can solve the problems of complex filter membrane manufacturing process, poor filtration and purification effect, small water flow rate, etc., and achieve the effect of large number of pores, fine pore size and good filtration effect

Inactive Publication Date: 2014-12-03
SUQIAN RONGJIN INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, due to the limited number of membrane pores, the traditional filtration membrane has a small water flow rate and low filtration efficiency. On the other hand, due to the large memb

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 20 parts of polyvinyl chloride, 15 parts of vinyl acetate, 5 parts of glass fiber, 10 parts of formic acid, 1 part of barium stearate, 1 part of sodium lauryl sulfonate.

[0012] The preparation steps are as follows: (1) Add 20 parts of polyvinyl chloride, 15 parts of vinyl acetate, and 5 parts of glass fiber to 10 parts of formic acid according to the composition of parts by mass, and mix and stir evenly to obtain a mixed material; (2) Add the above mixed material Add 1 part of barium stearate and 1 part of sodium dodecylsulfonate, and continue to stir to obtain a spray film slurry; (3) spray the above slurry to obtain a finished product after solidification.

Embodiment 2

[0014] 26 parts of polyvinyl chloride, 18 parts of vinyl acetate, 6 parts of polypropylene fiber, 16 parts of dimethylformamide, 2 parts of barium stearate, and 1 part of cetyltrimethylammonium chloride.

[0015] The preparation steps are as follows: (1) Add 26 parts of polyvinyl chloride, 18 parts of vinyl acetate, and 6 parts of polypropylene fiber to 16 parts of dimethylformamide according to the number of parts by mass, and mix and stir evenly to obtain a mixed material; (2) Add 2 parts of barium stearate and 1 part of cetyltrimethylammonium chloride to the above mixture, and continue to stir to obtain a spray film slurry; (3) spray the above slurry to obtain a finished product after solidification.

Embodiment 3

[0017] 30 parts of polyvinyl chloride, 22 parts of vinyl acetate, 8 parts of polyester fiber, 22 parts of acetone, 4 parts of methyl tin mercaptide, 2 parts of sodium lauryl sulfonate.

[0018] The preparation steps are as follows: (1) Add 30 parts of polyvinyl chloride, 22 parts of vinyl acetate, and 8 parts of polyester fiber to 22 parts of acetone according to the composition of parts by mass, and mix and stir evenly to obtain a mixed material; (2) Add the above mixed material Add 4 parts of methyl tin mercaptide and 1 part of sodium dodecylsulfonate to the mixture, and continue to stir to obtain a spray film slurry; (3) Spray the above slurry, and obtain the finished product after solidification.

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PUM

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Abstract

The invention discloses a porous filtration film. The porous filtration film comprises the following raw materials in parts by weight: 20-40 parts of polyvinyl chloride, 15-30 parts of vinyl acetate, 5-10 parts of porous fibers, 10-30 parts of an organic solvent, 1-5 parts of a heat stabilizer and 1-3 parts of a surfactant. A preparation method of the porous filtration film comprises the following steps: adding the polyvinyl chloride, the vinyl acetate and the porous fibers into the organic solvent according to the parts by weight, simultaneously and uniformly mixing, stirring, adding the heat stabilizer and the surfactant, continuously stirring so as to obtain a spraying film slurry solution, and coagulating the spraying film to obtain a finished product. The preparation method of the porous filtration film is simple in process and convenient to operate; and the prepared porous filtration film is small in aperture, large in number and high in filtration efficiency.

Description

technical field [0001] The invention relates to a filter membrane, in particular to a porous filter membrane. Background technique [0002] Membrane separation technology is energy-saving and environmentally friendly, and is widely used in biology, environmental protection, medicine, energy, wastewater treatment and other fields. As a key element of membrane separation technology, the filter membrane's performance determines the success or failure of the entire membrane separation technology implementation. On the one hand, due to the limited number of membrane pores, the traditional filtration membrane has a small water flow rate and low filtration efficiency. On the other hand, due to the large membrane pore size, the filtration and purification effect is not good. In addition, the traditional manufacturing process of filter membrane is complex and cost-effective, so it cannot be used more widely. Contents of the invention [0003] Technical problem to be solved: Aimin...

Claims

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Application Information

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IPC IPC(8): B01D71/30B01D67/00
Inventor 张锦
Owner SUQIAN RONGJIN INFORMATION TECH
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