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Micropore type coating sizing and preparation method thereof

A coating slurry and microporous technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of internal solvent volatilization, influence on use, system instability, etc., and achieve the effect of compensating for volatilization, convenient processing, and good competitive advantage.

Inactive Publication Date: 2012-12-12
CTA HI TECH TEXTILES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared coating slurry is an emulsion system, but due to the instability of the system, it is prone to demulsification and the volatilization of solvents in the system, so that a skin-like structure is formed on the surface of the slurry, which affects its use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh each raw material according to parts by weight: 100 parts of aromatic polyether polyurethane, 20 parts of toluene, 20 parts of methyl ethyl ketone, 4 parts of multifunctional aliphatic isocyanate, 4 parts of fatty ester, 3 parts of fluorocarbon resin, 45 parts of water Add polyurethane resin, toluene and methyl ethyl ketone into the mixer respectively, and stir at high speed for 3 minutes; add multifunctional aliphatic isocyanate, fatty ester compound and fluorocarbon resin into the mixer in turn, and stir at high speed for 4 minutes after each additive is added , form an oily slurry; add water into the mixer after atomization, and stir at a high speed for 3 minutes to form a white emulsion slurry; pour the above slurry into a container, spray 0.5 parts of methyl ethyl ketone solvent on its surface, and then put The container is sealed to obtain a finished product.

Embodiment 2

[0019] Weigh each raw material in parts by weight: 100 parts of aromatic polyether polyurethane, 15 parts of toluene, 15 parts of butanone, 2 parts of aromatic polyisocyanate, 1 part of fatty ester, 1 part of silicone resin, 60 parts of water Add polyurethane resin, toluene and butanone into the mixer respectively, and stir at high speed for 2 minutes; add multifunctional aliphatic isocyanate, fatty ester and fluorocarbon resin into the mixer in sequence, and stir at high speed for 3 minutes after each additive is added. Form an oily slurry; add water into the mixer after atomization, and stir at high speed for 4 minutes to form a white emulsion slurry; pour the above slurry into a container, spray 0.5 parts of butanone solvent on the surface, and then put the container Seal it to get the finished product.

Embodiment 3

[0021] Weigh each raw material in parts by weight: 100 parts of aromatic polyether polyurethane, 25 parts of toluene, 25 parts of butanone, 6 parts of aromatic polyisocyanate, 5 parts of fatty ester, 5 parts of fluorocarbon resin, and 30 parts of water Add polyurethane resin, toluene and methyl ethyl ketone into the mixer respectively, and stir at high speed for 2 minutes; add multifunctional aliphatic isocyanate, fatty esterified product and fluorocarbon resin into the mixer in sequence, and stir at high speed for 5 minutes after each additive is added. Form an oily slurry; add water into the mixer after atomization, and stir at high speed for 2 minutes to form a white emulsion slurry; pour the above slurry into a container, spray 0.5 parts of methyl ethyl ketone solvent on the surface, and then put the container Seal it to get the finished product.

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PUM

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Abstract

The invention provides micropore type coating sizing and a preparation method of the micropore type coating sizing. The micropore type coating sizing is characterized by comprising the following components in parts by weight: 100 parts of polyurethane resin, 15-25 parts of toluene, 15-25 parts of butanone, 2-6 parts of bridging agent, 1-5 parts of anti-skinning agent, 1-5 parts of waterproof agent and 30-60 parts of water. The preparation method of the micropore type coating sizing is characterized by comprising the following steps of: weighing, adding the raw materials, stirring and sealing up for safekeeping. The invention has the benefits as follows: the bridging agent, the anti-skinning agent and the waterproof agent are used as assistants in a formula and sequentially added in a mixture of polyurethane resin, toluene and butanone, so that the prepared sizing forms a white emulsion system which is stable and can be kept for long time; and the sizing is coated on a textile by a scraper and has a specific micropore structure, so that the prepared fabric has good moisture penetrability and waterproofness.

Description

[0001] technical field [0002] The invention relates to the technical field of textile coatings, in particular to a coating slurry and a preparation method. Background technique [0003] There are two main types of microporous waterproof and moisture-permeable fabrics, one is polytetrafluoroethylene material represented by Gore-tex, and the other is polyurethane material represented by Porelle. Both of these two materials have a microporous structure, but their production and processing costs are relatively high. Therefore, a dry coating process for manufacturing microporous waterproof and moisture-permeable fabrics has recently appeared, which has a strong cost advantage, and its coated products have excellent hydrostatic pressure resistance and moisture permeability. The microporous coating slurry of the dry coating process is generally prepared with polyurethane resin, toluene, butanone, additives and water. The prepared coating slurry is an emulsion system, but due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/568D06M15/643D06M15/256D06M13/395D06M13/224
Inventor 李鹏杨沛葛慧宪
Owner CTA HI TECH TEXTILES
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