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High-strength waterproof anti-cracking putty powder and preparation method thereof

An anti-cracking putty, high-strength technology, applied in the direction of filling slurry, etc., can solve the problems of non-waterproof, poor film quality, low strength, etc., to achieve good water resistance, dense film layer, and prevent the penetration of water molecules.

Active Publication Date: 2022-02-08
湖南志洲新型干混建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the putty powder on the market has low strength after painting, is not waterproof, and the quality of the coating film is poor.

Method used

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  • High-strength waterproof anti-cracking putty powder and preparation method thereof
  • High-strength waterproof anti-cracking putty powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-strength water-resistant and crack-resistant putty powder, including the first component, the second component, and the third component with a mass ratio of 50:1:5;

[0028] The first component includes the following components:

[0029] 45 parts of unsaturated polyester resin, 3 parts of cobalt naphthenate, 5 parts of hydroxylated multi-walled carbon nanotubes, 1 part of hydroxypropyl methylcellulose ether, 40 parts of filler, 0.5 parts of thixotropic lubricant RMA-1;

[0030] The second component is cyclohexanone peroxide curing agent, and the third component is butyl formate diluent.

[0031] The preparation method of unsaturated polyester resin is as follows:

[0032] Mix maleic anhydride, phthalic anhydride, fumapimaric acid and 1,2-propylene glycol with a mass ratio of 35:55:15:75, heat up to melting under the protection of an inert gas, start stirring, and heat up to React at 165°C for 30 minutes, add stannous octoate and continue to heat up to reflux, r...

Embodiment 2

[0037] A high-strength water-resistant and crack-resistant putty powder, including the first component, the second component, and the third component with a mass ratio of 50:1:3;

[0038] The first component includes the following components:

[0039] 50 parts of unsaturated polyester resin, 5 parts of cobalt naphthenate, 6 parts of hydroxylated multi-walled carbon nanotubes, 1 part of hydroxypropyl methylcellulose ether, 50 parts of filler, 1 part of thixotropic lubricant RMA-1;

[0040] The second component is cyclohexanone peroxide curing agent, and the third component is butyl formate diluent.

[0041] The preparation method of unsaturated polyester resin is as follows:

[0042] Mix maleic anhydride, phthalic anhydride, fumapimaric acid and 1,2-propylene glycol with a mass ratio of 35:55:15:75, heat up to melting under the protection of an inert gas, start stirring, and heat up to React at 170°C for 50 minutes, add stannous octoate and continue to heat up to reflux, remo...

Embodiment 3

[0047] A high-strength water-resistant and crack-resistant putty powder, including the first component, the second component, and the third component with a mass ratio of 40:1:3;

[0048] The first component includes the following components:

[0049] 40 parts of unsaturated polyester resin, 3 parts of cobalt naphthenate, 4 parts of hydroxylated multi-walled carbon nanotubes, 0.5 part of hydroxypropyl methylcellulose ether, 40 parts of filler, 0.5 part of thixotropic lubricant RMA-1;

[0050] The second component is cyclohexanone peroxide curing agent, and the third component is butyl formate diluent.

[0051] The preparation method of unsaturated polyester resin is as follows:

[0052]Mix maleic anhydride, phthalic anhydride, fumapimaric acid and 1,2-propanediol with a mass ratio of 30:50:10:70, heat up to melting under the protection of an inert gas, start stirring, and heat up to React at 160°C for 30 minutes, add stannous octoate and continue to heat up to reflux, distil...

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Abstract

The invention relates to the field of high polymer materials, in particular to high-strength waterproof anti-cracking putty powder and a preparation method thereof, and the high-strength waterproof anti-cracking putty powder comprises a first component, a second component and a third component; the first component is prepared from the following components: unsaturated polyester resin, cobalt naphthenate, hydroxylated multi-walled carbon nanotubes, hydroxypropyl methyl cellulose ether, filler and a thixotropic lubricant; the second component is a curing agent, and the third component is butyl formate. The coating film formed by the putty has good flexibility and impact resistance and good water resistance, and the phenomena of blistering, falling off and stickiness are avoided after the putty is soaked in water at 40 DEG C for 720 h.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-strength water-resistant and crack-resistant putty powder and a preparation method thereof. Background technique [0002] As an embedding material, putty powder can be well attached to the surface of the object, fill up the surface defects of the object, improve the aesthetics and provide a flat substrate for subsequent construction. It is mainly used for interior and exterior walls of buildings Decoration, home building materials manufacturing, installation, automobile manufacturing and repair, caulking and filling of metal and non-metal materials, etc. [0003] At present, the putty powder on the market has low strength after painting, is not waterproof, and has poor coating quality. Contents of the invention [0004] Purpose of the invention: In view of the above technical problems, the present invention provides a high-strength water-resistant and crack-resistant pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
CPCC09D5/34
Inventor 丁小明高敏
Owner 湖南志洲新型干混建材有限公司
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