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One-step production process of water electret melt-blown cloth

A production process, the technology of melt-blown cloth, which is applied in the field of one-step production process of water-electret melt-blown cloth, can solve the problems that water-electret melt-blown cloth is not easy to dry, high production cost, and fast static decay, etc. Prolong electrostatic adsorption time, reduce production cost and improve filtration efficiency

Active Publication Date: 2021-06-25
东营俊富净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this patent: the prepared water electret melt-blown cloth is not easy to dry, and there will be discoloration and mildew during use
Disadvantages of this patent: the electrostatic decay of the long-lasting melt-blown polypropylene composite electret material is fast, and the production cost is high

Method used

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  • One-step production process of water electret melt-blown cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A raw material for water electret meltblown cloth, in parts by weight, comprising: 120 parts of polypropylene resin, 3 parts of zirconia powder, 1 part of light calcium carbonate, 0.5 part of polyvinylamine, 5 parts of anionic polyacrylamide , 3 parts of oxidized polyethylene wax, 2 parts of volcanic stone powder.

[0030] Among them, according to the GB / T 3682.1-2018 standard, the heating temperature is set to 230°C, and the rated load is set to 2.16kg to normally detect the melt flow rate of the sample to be tested. The measured melt flow rate of the polypropylene resin is 1500g / 10min.

[0031] The particle size of the zirconium dioxide powder is 20 μm.

[0032] The particle size of the light calcium carbonate is 100nm.

[0033] The polyvinylamine is a white powder with a content of 75% and a particle size of 50 μm.

[0034] The anionic polyacrylamide has a solid content ≥ 88%, a molecular weight of 8-20 million, a degree of hydrolysis of 10-80%, and a particle si...

Embodiment 2

[0043] A raw material for water electret melt-blown cloth, in parts by weight, comprising: 125 parts of polypropylene resin, 4 parts of zirconia powder, 1.5 parts of light calcium carbonate, 0.7 part of polyvinylamine, 6 parts of anionic polyacrylamide , 4 parts of oxidized polyethylene wax, 3 parts of volcanic stone powder.

[0044]Among them, according to the GB / T 3682.1-2018 standard, the heating temperature is set to 230°C, and the rated load is set to 2.16kg to normally detect the melt flow rate of the sample to be tested. The measured melt flow rate of the polypropylene resin is 1500g / 10min.

[0045] The particle size of the zirconium dioxide powder is 25 μm.

[0046] The particle size of the light calcium carbonate is 700nm.

[0047] The polyvinylamine is a white powder with a content of 78% and a particle size of 70 μm.

[0048] The anionic polyacrylamide has a solid content ≥ 88%, a molecular weight of 8-20 million, a degree of hydrolysis of 10-80%, and a particle...

Embodiment 3

[0057] A raw material for water electret meltblown cloth, in parts by weight, including: 130 parts of polypropylene resin, 5 parts of zirconia powder, 2 parts of light calcium carbonate, 1 part of polyvinylamine, 7 parts of anionic polyacrylamide , 5 parts of oxidized polyethylene wax, 4 parts of volcanic stone powder.

[0058] Among them, according to the GB / T 3682.1-2018 standard, the heating temperature is set to 230°C, and the rated load is set to 2.16kg to normally detect the melt flow rate of the sample to be tested. The measured melt flow rate of the polypropylene resin is 1500g / 10min.

[0059] The particle size of the zirconia powder is 30 μm.

[0060] The particle size of the light calcium carbonate is 1000nm.

[0061] The polyvinylamine is a white powder with a content of 81% and a particle size of 90 μm.

[0062] The anionic polyacrylamide has a solid content ≥ 88%, a molecular weight of 8-20 million, a degree of hydrolysis of 10-80%, and a particle size of 60-1...

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Abstract

Water electret melt-blown cloth is prepared from the following raw materials in parts by weight: 120-130 parts of polypropylene resin, 3-5 parts of zirconium dioxide powder, 1-2 parts of light calcium carbonate, 0.5-1 part of polyvinylamine, 5-7 parts of anionic polyacrylamide, 3-5 parts of oxidized polyethlene wax and 2-4 parts of pelelith powder. The one-step production process of the water electret melt-blown cloth includes the following steps: production of melt-blown cloth, preparation of electret water liquid, an electret process and a drying process. The water electret melt-blown fabric disclosed by the invention has the advantages that static attenuation can be prevented within five years; after 100 times of standard washing, the phenomena of color change and mildewing do not occur; the moisture content of the dried melt-blown cloth can be controlled to be 5%-6%; the filtering efficiency is 98.9%-99.5%, and the filtering efficiency can still reach 98.5%-99.1% after 100 times of standard washing.

Description

technical field [0001] The invention relates to the field of melt blown cloth production, in particular to a one-step production process of water electret melt blown cloth. Background technique [0002] The difference between the water electret melt blown cloth and the melt blown cloth made by traditional technology is that the traditional melt blown cloth uses corona electret, which shows stronger stability and comprehensive benefits; while the water electret melt blown cloth is The prepared pure water is delivered to the nozzle by a high-pressure water pump, and the melt-blown cloth is sprayed by a fan-shaped nozzle, and static electricity is generated by friction between the two. The performance of water electret melt blown cloth is that the static electricity is saturated, but the attenuation is faster, and the production cost of water electret melt blown cloth is higher than that of traditional electrostatic electret melt blown cloth, and the filtration efficiency will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/544D04H1/56D01F6/46D01F1/10F26B21/00F26B25/22
CPCD04H1/544D04H1/56D01F6/46D01F1/10F26B21/00F26B25/22
Inventor 李绍亮吴树宗黄岩谭月婷冯志峰李晓妹谢泽荣
Owner 东营俊富净化科技有限公司
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