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Light-shielding coating slurry and preparation method thereof

A technology of light-shielding coating and slurry, which is applied in the direction of textiles and papermaking, etc. It can solve the problems that the compatibility between emulsion and filler cannot reach the level of light-shielding coating slurry, and the hiding rate is low, so as to improve storage stability and good optical performance , Improve the effect of covering rate

Inactive Publication Date: 2020-06-19
成都德美精英化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional emulsions can form films continuously, but there are the following problems: one is that the covering rate of the emulsion to the interwoven voids of the fabric is low;

Method used

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  • Light-shielding coating slurry and preparation method thereof
  • Light-shielding coating slurry and preparation method thereof
  • Light-shielding coating slurry and preparation method thereof

Examples

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preparation example Construction

[0027] A method for preparing a light-shielding coating slurry, comprising the following steps:

[0028] (1) adopt pre-emulsification semi-continuous method emulsion polymerization to prepare acrylic acid emulsion;

[0029](2) Slowly add part of the thickener to the acrylic emulsion in step (1) while stirring. After the viscosity of the system is constant, add the dispersant, defoamer and filler. After the dissolution is complete, continue to add the remaining thickener agent, and stirred until the viscosity of the system was constant, that is, the light-shielding coating slurry was prepared.

[0030] Further, the following method is adopted in the step (1):

[0031] 1) Add part of the anionic emulsifier and nonionic emulsifier into the polymerization kettle, and add part of the water, stir evenly, and prepare a primer solution;

[0032] 2) Add the remaining anionic emulsifier and nonionic emulsifier into the emulsification tank, and add the remaining water, stir until the a...

Embodiment 1

[0041] A light-shielding coating slurry, comprising the following components in parts by weight: 2 parts of ammonium lauryl polyoxyethylene ether sulfate, 3 parts of isomeric alcohol polyoxyethylene ether, 5 parts of itaconic acid, 5 parts of acrylamide 5 parts, 5 parts of methylol acrylamide, 50 parts of butyl acrylate, 90 parts of ethyl acrylate, 15 parts of isooctyl acrylate, 50 parts of methyl methacrylate, 0.05 parts of diallyl phthalate, methylol 6 parts of base silicone oil, 0.2 parts of potassium persulfate, 0.2 parts of sodium bisulfite, 150 parts of nano-calcium carbonate, 1 part of D607 dispersant, 1 part of T301 defoamer, 15 parts of DM-5233G thickener, 500 parts of deionized water share.

[0042] A method for preparing a light-shielding coating slurry, comprising the following steps:

[0043] 1) Add 13% by weight of lauryl polyoxyethylene ammonium sulfate and isomeric alcohol polyoxyethylene ether into the polymerization kettle, and add 25% of water, stir evenly,...

Embodiment 2

[0051] A light-shielding coating slurry, comprising the following components by weight: 3 parts of lauryl polyoxyethylene ether ammonium sulfate, 4 parts of isomeric alcohol polyoxyethylene ether, 10 parts of itaconic acid, 10 parts of acrylamide 10 parts of methylol acrylamide, 80 parts of butyl acrylate, 100 parts of ethyl acrylate, 20 parts of isooctyl acrylate, 60 parts of methyl methacrylate, 0.15 parts of diallyl phthalate, methylol 10 parts of base silicone oil, 0.25 parts of potassium persulfate, 0.25 parts of sodium bisulfite, 200 parts of nano-calcium carbonate, 3 parts of D607 dispersant, 3 parts of T301 defoamer, 20 parts of DM-5233G thickener, 650 parts of deionized water share.

[0052] A preparation method of a light-shielding coating slurry is the same as that in Example 1.

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Abstract

The invention relates to the field of fabric coatings and discloses light-shielding coating slurry. The light-shielding coating slurry is prepared from the following components in parts by weight: 2-3parts of an anionic emulsifier, 3-4 parts of a non-ionic emulsifier, 15-40 parts of a functional monomer, 155-200 parts of a soft monomer, 50-60 parts of a hard monomer, 0.05-0.15 part of a cross-linking agent, 6-10 parts of silicone oil, 0.2-0.25 part of an oxidant, 0.2-0.25 part of a reducing agent, 150-200 parts of a filler, 1-3 parts of a dispersant, 1-3 parts of a defoamer, 15-20 parts of athickener and 500-650 parts of water. The light-shielding coating slurry has relatively good light-shielding property, water resistance, anti-pollution performance and weather resistance, and a coatedfabric is good in hand. Through a semi-continuous polymerization process of positive emulsion pre-emulsification, the slurry is firstly synthesized into an acrylic emulsion of meeting the performancerequirements, then the filer and an assistant are added, and finally light-shielding coating gum with excellent performance is prepared. According to the method, a demulsification phenomenon generated in the polymerization process can be reduced to make a polymerization system more stable.

Description

technical field [0001] The invention relates to the technical field of fabric coating, in particular to a light-shielding coating slurry and a preparation method thereof. Background technique [0002] In the textile printing industry, fabric coating and its process belong to an important functional finishing process in fabric finishing technology. In the prior art, research on fabric coatings mainly focuses on fabric hydrostatic pressure-resistant coatings, wear-resistant and breathable coatings, imitation leather coatings, matte coatings, etc., while there are few studies on light-shielding coatings. Coated fabric is a textile in which the coating adhesive material forms a single or multi-layer coating on one side or both sides of the fabric, consisting of two or more layers of materials, at least one of which is textile, and the other The layers are completely continuous polymer coatings. The continuous polymer coatings in the prior art fabric coatings are mainly polyure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/04D06N3/00C08F220/18C08F220/14C08F220/56C08F220/58C08F222/02
CPCD06N3/042D06N3/0063C08F220/18D06N2209/0853D06N2209/146D06N2209/1692
Inventor 周波程云谌涛吴斌刘钢
Owner 成都德美精英化工有限公司
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