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Preparation method of shell powder interior wall coating with remarkable humidity-control performance

A technology of interior wall paint and shell powder, applied in the direction of coating, can solve the problems of poor scrub resistance and low humidity control ability, and achieve the effects of strong adsorption capacity, enhanced affinity and enhanced compatibility

Inactive Publication Date: 2019-01-01
郭平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, although there are many types of shell powder interior wall coatings, and have a certain function of regulating air humidity, they all have the technical defects of low humidity control ability and poor scrub resistance.

Method used

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  • Preparation method of shell powder interior wall coating with remarkable humidity-control performance
  • Preparation method of shell powder interior wall coating with remarkable humidity-control performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of shell powder interior wall paint with remarkable humidity control performance, comprising the following steps:

[0025] S1: Preparation of modified shell powder

[0026] (1) Put the shells collected in the market into the cleaning solution, after soaking, wash the surface with clean water, dry and crush to obtain shell powder, then add the shell powder to ammonia water three times its weight In the process, after soaking for 50 minutes, centrifuge to obtain a precipitate, and dry the precipitate to obtain alkaline shell powder;

[0027] (2) In parts by weight, add 40 parts of N-isopropylacrylamide to 120 parts of water, stir under nitrogen protection until fully dissolved, and then add 10 parts of stearyl methacrylate with sodium hydroxide solution Adjust its pH to 7.0, slowly add it to N-isopropylacrylamide, then add 0.1 part of potassium persulfate to it, react for 18 hours, and rinse the reaction product repeatedly to obtain a hydrogel, and a...

Embodiment 2

[0037] A preparation method of shell powder interior wall paint with remarkable humidity control performance, comprising the following steps:

[0038] S1: Preparation of modified shell powder

[0039] (1) Put the shells collected in the market into the cleaning solution, after soaking, wash the surface with clean water, dry and pulverize to obtain shell powder, and then add the shell powder to ammonia water 4 times its weight In the process, after soaking for 55 minutes, centrifuge to obtain a precipitate, and dry the precipitate to obtain alkaline shell powder;

[0040] (2) In parts by weight, add 45 parts of N-isopropylacrylamide to 130 parts of water, stir under nitrogen protection until fully dissolved, and then add 13 parts of stearyl methacrylate with sodium hydroxide solution Adjust its pH to 7.0, slowly add it to N-isopropylacrylamide, then add 0.2 parts of potassium persulfate to it, react for 19 hours, and rinse the reaction product repeatedly to obtain a hydrogel, ...

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PUM

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Abstract

The invention provides a preparation method of a shell powder interior wall coating with remarkable humidity-control performance. The preparation method comprises the following operation steps: S1, preparing modified shell powder from alkaline shell powder and hydrogel; S2, preparing a core-shell copolymer emulsion from a copolymer of 2-hydroxyethyl methacrylate and glycidyl methacrylate as a shell and a copolymer of styrene, allyl acrylate, deuterated poly(methyl metha-crylate) and octafluoropentyl acrylate as a core; and S3, adding the core-shell copolymer emulsion, the modified shell powder, a dispersant, a defoamer and a coalescing agent in a high-speed mixer to be uniformly mixed, thereby preparing the shell powder interior wall coating. The shell powder interior wall coating preparedaccording to the preparation method is remarkable in moisture absorption performance and scrubbing resistance, and can effectively adjust the humidity of the indoor environment for a long time.

Description

technical field [0001] The invention belongs to the technical field of interior wall coatings, and in particular relates to a preparation method of shell powder interior wall coatings with remarkable humidity control performance. Background technique [0002] Shell is an inorganic-organic mineral material with a perfect organizational structure. The shell is divided into three layers, which are cuticle, prism layer and nacre layer from the outside to the inside. In fact, it is composed of aragonite sheets with uniform thickness. Formed, and the slices are separated by organic matter. The outermost stratum corneum belongs to hard protein, which has good acid corrosion resistance. The prismatic shell of the middle layer is mainly composed of calcite, and the innermost layer is nacre, which is also composed of calcite. Although different shell types have different shapes The shells have different colors, but their chemical composition is basically the same. The main components...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D7/62C08F265/06C08F265/04C08F220/20C08F220/32C08F212/08C08F220/40C08F220/14C08F220/22C08F2/30
CPCC08F2/30C08F220/20C08F265/04C08F265/06C08K2003/265C09D7/62C09D151/003C08F212/08C08F220/40C08F220/14C08F220/22C08K9/02C08K9/08C08K3/26C08F220/325
Inventor 郭平
Owner 郭平
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