High-pressure-resistant porous macromolecule PMMA filtration membrane material preparation method

A high-molecular, high-pressure-resistant technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as difficult expansion of industrial production scale, wear system parts, complex preparation process, etc., and achieve molding shrinkage Small, easy to shape and process, simple preparation process

Inactive Publication Date: 2017-08-29
SHENZHEN MUNICIPAL QIDE ENVIRONMENTAL SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the filter materials frequently used in industry at home and abroad are generally made of filter paper, filter cloth, metal mesh, ceramics, activated carbon, etc. The main disadvantages are uneven pore size, low filtration accuracy, and easy fiber shedding. Parts of the wear system, many mechanical failures, short life, etc.
Although the polymer filter material in the prior art solves the problem of uniform pore size, the preparation process is complicated, and it is difficult to expand the scale of industrial production and other defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-pressure-resistant porous polymer PMMA filter material, comprising the following raw materials in parts by weight: 80 parts of polymethyl methacrylate (PMMA); 30 parts of methyl methacrylate (MMA); TX-100.5 parts; 15 parts of water .

[0025] 1) Add 3000g MMA and 50g TX-10 into the reaction vessel and mix well, then add 1500mL water and stir to form a mixture;

[0026] 2) Add 8000g PMMA to the mixture obtained in step 1) and stir evenly;

[0027] 4) curing and molding the mixture obtained in step 2) to obtain a semi-finished product;

[0028] 3) Soak the cured semi-finished product in hot water for 1 hour to obtain the finished product.

Embodiment 2

[0030] A high-pressure-resistant porous polymer PMMA filter material, comprising the following raw materials in parts by weight: 95 parts of PMMA; 90 parts of MMA; 1015 parts of TX-163110 parts; 15 parts of water.

[0031] 1) Add 9000g MMA, 1500g TX-10 and 1000g1631 into the reaction vessel and mix well, then add 1500mL water and stir to form a mixture;

[0032] 2) 9500g PMMA is added in the mixture obtained in step 1) and stirred evenly;

[0033] 3) curing and molding the mixture obtained in step 2) to obtain a semi-finished product;

[0034] 4) Soak the cured semi-finished product in hot water for 10 hours to obtain the finished product.

Embodiment 3

[0036] A high-pressure-resistant porous polymer PMMA filter material comprises the following raw materials in parts by weight: 95 parts of PMMA; 90 parts of MMA; 55 parts of S-855 parts; 0.01 part of diisopropyl percarbonate; 25 parts of water.

[0037] 1) Add the monomers 9000g MMA and 500g S-85 in the above raw materials in the formula amount into the reaction vessel and mix evenly, then add 1500mL water and stir to form a uniform mixture;

[0038] 2) Add 9500g PMMA into the remaining water and stir evenly;

[0039] 3) Add the mixture of step 2) to the mixture obtained in step 1) and stir evenly;

[0040] 4) Add 1g of diisopropyl percarbonate into the mixture obtained in step 3) and stir evenly;

[0041] 5) curing and molding the mixture obtained in step 4) to obtain a semi-finished product;

[0042] 6) Soak the cured semi-finished product in hot water for 10 hours to obtain the finished product.

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PUM

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Abstract

The invention discloses a high-pressure-resistant porous macromolecule PMMA filtration membrane material preparation method, which comprises: uniformly mixing raw materials, carrying out curing molding to obtain a semi-finished product, placing the semi-finished product in hot water, and soaking for 1-10 h to obtain the finished product. According to the present invention, the preparation process is simple, the prepared high-pressure-resistant porous macromolecule filtration membrane material does not contain gas bubbles, the pore size is uniform, the micro-pore size is regulated between 0.01-15 [mu]m, the special-purpose pore size is 16-80 [mu]m, the porosity is 20-38%, and the water passing rate is more than 20%; and the high-pressure-resistant porous macromolecule PMMA filtration membrane material has characteristics of recycling, light weight, high mechanical strength, good impact resistance, high-pressure resistance, low forming shrinkage, good water permeability, adjustable pore size and the like, can be used in edible water purification, environmental protection, chemical industrial and other water treatment fields, and is the prefer filtration material for food, pharmaceutics, defense military and other separation and enrichment materials.

Description

technical field [0001] The invention relates to the technical field of polymer polymerization, in particular to a preparation method of a high-pressure-resistant porous polymer membrane material. Background technique [0002] At present, the filter materials frequently used in industry at home and abroad are generally made of filter paper, filter cloth, metal mesh, ceramics, activated carbon, etc. The main disadvantages are uneven pore size, low filtration accuracy, and easy fiber shedding. The components of the wear system have many mechanical failures and short service life. Although the polymer filter material in the prior art solves the problem of uniform pore size, the preparation process is complicated, and it is difficult to expand the scale of industrial production and other defects. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned defects, and propose a method for preparing a high-pressure-resistant porous po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/40B01D67/00
Inventor 郑才二陈岳忠
Owner SHENZHEN MUNICIPAL QIDE ENVIRONMENTAL SCI TECH CO LTD
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