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A kind of wall damage self-repairing decorative paint and preparation method thereof

A decorative coating and self-healing technology, applied in the field of coatings, can solve the problems of poor adhesion of surrounding coatings, weakened repair function, secondary damage, etc., to achieve the effect of firm damaged parts, avoid secondary damage, and excellent mechanical strength

Active Publication Date: 2021-05-11
江苏巢典釉瓷建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) The repair process takes a certain amount of time under no-load conditions
(5) There is also a need for testing methods for damage causes and activation methods for initiating repairs
[0005] Capsule-structured repairing agents are the most widely used coating additives. However, the existing capsule-structured repairing agents can only cross-link at local cracks to fill the cracks, and their adhesion to the surrounding paint is poor. , easy to cause secondary damage, and the repair function after secondary damage is weakened

Method used

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  • A kind of wall damage self-repairing decorative paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A self-repairing decorative coating for wall damage, the coating is prepared from the following raw materials in parts by weight:

[0033] 40 parts of elastic emulsion, 13 parts of calcium silicate, 18 parts of titanium dioxide, 3.5 parts of graphene, 1.2 parts of silica lime powder, 1 part of carboxymethyl cellulose, 3 parts of kaolin, 0.6 parts of bentonite, 3 parts of hydroxyapatite, 15 parts of self-healing microcapsules, 0.4 parts of polyamide, 1.2 parts of polylactic acid, 1.3 parts of polyvinyl acetate, 4 parts of functional additives, and 15 parts of solvent;

[0034] There are two kinds of self-healing microcapsules, two kinds of self-healing microcapsules all use urea-formaldehyde resin as the wall material, respectively take lignin-modified polyurethane prepolymer and polyether amine as the core material, and the mass ratio of the two kinds of microcapsules is 1:1.

[0035] The functional auxiliary agent is a leveling agent, a defoamer, a preservative, a pH ...

Embodiment 2

[0049] A self-repairing decorative coating for wall damage, the coating is prepared from the following raw materials in parts by weight:

[0050] 30 parts of elastic emulsion, 10 parts of calcium silicate, 16 parts of titanium dioxide, 2 parts of graphene, 1 part of silica lime powder, 0.5 parts of carboxymethyl cellulose, 1 part of kaolin, 0.3 parts of bentonite, 1 part of hydroxyapatite, 10 parts of self-healing microcapsules, 0.3 parts of polyamide, 0.5 parts of polylactic acid, 1 part of polyvinyl acetate, 2.2 parts of functional additives, and 10 parts of solvent;

[0051] There are two kinds of self-healing microcapsules, two kinds of self-healing microcapsules all use urea-formaldehyde resin as the wall material, respectively take lignin-modified polyurethane prepolymer and polyether amine as the core material, and the mass ratio of the two kinds of microcapsules is 1:1.

[0052] The functional auxiliary agent is a leveling agent, a defoamer, a preservative, a pH regul...

Embodiment 3

[0066] A self-repairing decorative coating for wall damage, the coating is prepared from the following raw materials in parts by weight:

[0067] 35 parts of elastic emulsion, 12 parts of calcium silicate, 17 parts of titanium dioxide, 3 parts of graphene, 1.1 parts of silica lime powder, 0.8 parts of carboxymethyl cellulose, 2 parts of kaolin, 0.5 parts of bentonite, 2 parts of hydroxyapatite, 12 parts of self-healing microcapsules, 0.4 parts of polyamide, 1.0 parts of polylactic acid, 1.2 parts of polyvinyl acetate, 2.6 parts of functional additives, and 15 parts of solvent;

[0068] There are two kinds of self-healing microcapsules, two kinds of self-healing microcapsules all use urea-formaldehyde resin as the wall material, respectively take lignin-modified polyurethane prepolymer and polyether amine as the core material, and the mass ratio of the two kinds of microcapsules is 1:1.

[0069] The functional auxiliary agent is a leveling agent, a defoamer, a preservative, a ...

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Abstract

The invention provides a wall damage self-repairing decorative coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 30-50 parts of elastic emulsion, 10-15 parts of calcium silicate, and 16-20 parts of titanium dioxide , 2-5 parts of graphene, 1-1.5 parts of silica lime powder, 0.5-1.5 parts of carboxymethyl cellulose, 1-5 parts of kaolin, 0.3-0.8 parts of bentonite, 1-5 parts of hydroxyapatite, self-healing micro 10‑20 parts of capsules, 0.3‑0.5 parts of polyamide, 0.5‑2 parts of polylactic acid, 1‑1.5 parts of polyvinyl acetate, 2.2‑6.1 parts of functional additives, 10‑30 parts of solvent; self-healing microcapsules are all based on Urea-formaldehyde resin is used as wall material, and two kinds of microcapsules are respectively made of lignin-modified polyurethane prepolymer and polyether amine as core materials. The coating has good mechanical strength and self-repairing ability, and has wide application prospects as a self-repairing decorative coating.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a wall damage self-repairing decorative coating and a preparation method thereof. Background technique [0002] Self-healing coatings is a name that can be called intelligent coatings proposed in the 1990s. It often refers to organic polymer coatings that have self-healing functions after the coating is damaged, or have self-healing functions under certain conditions. [0003] In order to meet the self-healing function, the paint and the repair process must meet the following basic conditions and requirements: (1) The paint body must contain mobile phase substances that can be released during the repair process, and the repair reagent can only be used when the coating film is damaged or Only released when needed. (2) When repairing certain damages such as cracks and scratches, in order to help fill in new substances, it often depends on some external repair reagents. (3) The r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00C09D175/02C09D7/65C09D7/61B01J13/04
CPCB01J13/043C08K2003/2241C08K2201/014C08L2205/035C08L2205/05C09D201/00C09D7/61C09D7/65C09D7/70C08L75/02C08K13/02C08K3/34C08K3/22C08K3/042C08K3/346C08K3/32
Inventor 吴为天
Owner 江苏巢典釉瓷建筑科技有限公司