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Persistent hydrophilic polypropylene separation net material and preparation method thereof

A polypropylene, hydrophilic technology, applied in the field of materials, can solve the problems of easy falling off of coating layers and separators, blockage of flow channels by particles, and reduction of flow channel area, etc., to achieve good appearance quality, increase melt tension, and comprehensive performance. Good results

Pending Publication Date: 2021-10-26
GUIZHOU MATERIAL IND TECH INSTITUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent adopts the method of coating, and there is uneven coating, and the dead angle position cannot be coated. After coating, the thickness of the partition net is increased, and the area of ​​the flow channel is reduced, which affects the efficiency. It is easy to fall off between the layer and the separator, and the particles block the flow channel, which cannot continue to produce anti-pollution effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 of the present invention: the preparation method of durable hydrophilic polypropylene mesh material, calculated by mass fraction, comprising the 52% polypropylene PPMM20-S, 18% polypropylene EPS30R, 8% acrylic acid copolymer P1050, 1 % hydrophilic agent, 12% sustained release agent, 5% traction agent, 0.4% lubricant, 0.6% antioxidant, 3% modified magnesium sulfate whisker. The hydrophilic agent is amphiphilic substance natural amino acid; the sustained release agent is EAA sodium salt; the traction agent is dopamine hydrochloride; the lubricant is stearic acid; the antioxidant is antioxidant 1010 and antioxidant 168, the addition ratio is 1:1; the modified magnesium sulfate whisker is made of magnesium sulfate through surface treatment, and the surface treatment agent is poly(propylene glycol)-silane-poly(ethylene glycol) , The amount of surface treatment agent is 1% of the weight of magnesium sulfate whiskers.

[0028] The preparation method of durable hy...

Embodiment 2

[0032] Embodiment 2 of the present invention: The preparation method of durable hydrophilic polypropylene mesh material, calculated by mass fraction, comprising said 94% polypropylene T30S, 1% acrylic acid copolymer P1050, 0.2% hydrophilic agent, 3% retarder Release agent, 0.1% traction agent, 0.5% lubricant, 0.2% antioxidant, 1% modified magnesium sulfate whisker. The hydrophilic agent is a polyether polyol compound; the slow-release agent is a cellulose acetate slow-release agent; the traction agent is dopamine hydrochloride; the lubricant is EBS; 1010. The ratio of antioxidant 168 is 1:1; the modified magnesium sulfate whisker is made of magnesium sulfate through surface treatment, and the surface treatment agent is maleic anhydride-styrene-COONa / N,N-dimethyl Acetamide (DMAc), the amount of surface treatment agent is 2% of the weight of magnesium sulfate whiskers.

[0033] The preparation method of durable hydrophilic polypropylene mesh material comprises the following ste...

Embodiment 3

[0037] Embodiment 3 of the present invention: the preparation method of durable hydrophilic polypropylene mesh material, calculated by mass fraction, comprising the 60% polypropylene MM20-S, 20% polypropylene PPPEPS30R, 10% acrylic acid copolymer P1050, 0.4 % hydrophilic agent, 2% sustained release agent, 2% traction agent, 0.2% lubricant, 0.4% antioxidant, 5% modified magnesium sulfate whisker. The hydrophilic agent is ethylene-vinyl alcohol copolymer; the sustained release agent is sodium carboxymethyl cellulose gel; the traction agent is dopamine hydrochloride; the lubricant is TAF; The ratio of oxygen agent 1010 and antioxidant 168 is 1:1; the modified magnesium sulfate whisker is made of magnesium sulfate through surface treatment, and the surface treatment agent is maleic anhydride-styrene-COONa / N,N- Dimethylacetamide (DMAc), the amount of surface treatment agent is 3% of the weight of magnesium sulfate whiskers.

[0038] The preparation method of durable hydrophilic po...

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Abstract

The invention discloses a persistent hydrophilic polypropylene separation net material and a preparation method thereof. A magnesium sulfate whisker stiffening modification technology and a hydrophilic substance slow-release traction technology are combined, and a hydrophilic agent is pulled to the surface of a material by utilizing the self-polymerization capability of dopamine to form a uniform hydrophilic layer; and a hydrophilic substance is locked by utilizing the slow-release and confining effects of a slow-release agent such as EAA sodium salt, so that the separation net material not only has good appearance, stiffness, solvent resistance and mechanical comprehensive performance, but also has permanent hydrophilic performance and lasting anti-pollution performance. The method is simple, the performance is excellent, the effect is obvious, the good industrial application prospect is achieved, the prepared partition net material has the advantages of being good in supporting and flow dividing effect, resistant to corrosion, efficient, lasting in anti-pollution performance and easy to clean, the problem of attachment of fine particles can be greatly solved, the use efficiency of fluid handling components is greatly improved, and the life of the fluid handling components is prolonged; and the fluid treatment components is suitable for the fluid treatment components which are in close contact with hydrophilic fluid and need isolation supporting and flow dividing effects.

Description

technical field [0001] The invention relates to the field of materials, in particular to a durable hydrophilic polypropylene mesh material and a preparation method. Background technique [0002] The partition net is a main component of the fluid treatment components, and its main function is to separate the treatment components, establish fluid channels between components and quickly divide the flow. In the process of fluid treatment, the processed fluid that meets the requirements is collected through the collection pipeline, and the rest is the concentrated non-compliant fluid, which contains a large number of impurities, particles, microorganisms and other substances, and these small substances will adhere, block, and stay On the separation net, reducing the passage area of ​​fluid treatment will also breed harmful bacteria and other microorganisms, which will affect the effect and efficiency of fluid treatment components and are not easy to clean. [0003] With the adva...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L33/02C08L79/04C08L23/08C08L1/28C08L1/12C08L71/00C08K9/04C08K7/08C08K5/17C08J5/06
CPCC08J5/06C08J2323/12C08J2323/14C08J2433/02C08J2479/04C08J2423/08C08J2401/28C08J2401/12C08J2471/00C08K9/08C08K7/08C08K5/175
Inventor 龙雪彬熊一鸣宋季岭杜西兰张凯秦舒浩
Owner GUIZHOU MATERIAL IND TECH INSTITUE
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