A two-component anti-crack beautifying agent and its preparation method

Abstract

The invention relates to the field of coatings, and discloses a two-component anti-crack beautifying agent and a preparation method thereof. The beautifying agent is made by mixing component A and component B according to the mass ratio of 1: (0.5~2), with In parts by weight, component A includes: 40-70 parts of epoxy resin, 0.1-10 parts of fluorocarbon resin, 2-15 parts of emulsifier, 5-20 parts of diluent, 5-50 parts of pigment and filler, 0.1-5 parts of pH regulator, 0.1~5 parts of wetting and dispersing agent, 0.01~2 parts of defoamer, 5~50 parts of deionized water; component B includes 15~30 parts of nano-titanium dioxide modified by polyamide surface, diluent 10~ 40 parts, 0.01~5 parts thickener, 1~10 parts pigments and fillers. The invention uses polyamide surface-modified nano-titanium dioxide as a curing agent and a filler at the same time, and the prepared beautifying agent has good adhesion, anti-fouling, anti-mildew, scrub resistance, high hardness, low toxicity and good impact strength. Not easy to crack.

Description

technical field

[0001] The invention relates to the field of coatings, in particular to a two-component anti-cracking beautifying agent and a preparation method thereof. Background technique

[0002] With the development of building decoration materials, the application of ceramic tiles, stone materials, mosaics, wood lines and other materials is becoming more and more common. A large number of gaps are produced when materials are spliced, which makes the application of beauty joints more and more extensive. At present, the commonly used beautifying agents include one-component polymer emulsion type beautifying agent and oily two-component epoxy beautifying agent. Disadvantages such as scrub resistance, easy to mold and black in humid environment.

[0003] At present, amine curing agents are generally used in the two-component epoxy beautifying agent, for example, "a kind of water-based epoxy resin beautifying agent and its preparation method and application" disclosed in ...

Examples

Embodiment 1

[0035] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to a mass ratio of 1:1. In parts by weight, component A includes: 50 parts of bisphenol A epoxy resin, 5 parts of cationic water-based fluorocarbon resin, 10 parts of cationic emulsifier, 10 parts of absolute ethanol, 20 parts of titanium dioxide, 3 parts of phosphoric acid, 3 parts of polyurethane dispersant, 1 part of silicone defoamer, 30 parts of deionization Water; component B includes 20 parts of polyamide surface-modified nano-titanium dioxide, 30 parts of absolute ethanol, 2 parts of cellulose ether thickener, and 5 parts of titanium dioxide.

[0036]The preparation method of nano-titanium dioxide modified on the surface of polyamide is: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 80°C for 6 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mass volume ratio o...

Embodiment 2

[0042] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to the mass ratio of 1:0.5. In parts by weight, component A includes: 40 parts of bisphenol A epoxy resin, 0.1 part of cationic water-based fluorocarbon resin, 2 parts of cationic emulsifier, 5 parts of absolute ethanol, 5 parts of titanium dioxide, 0.1 part of phosphoric acid, 0.1 part of polyurethane dispersant, 0.01 part of silicone defoamer, 50 parts of deionization Water; component B includes 30 parts of polyamide surface-modified nano-titanium dioxide, 40 parts of absolute ethanol, 5 parts of cellulose ether thickener, and 10 parts of titanium dioxide.

[0043] The preparation method of nano-titanium dioxide modified on the surface of polyamide is: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 70°C for 5 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mass volum...

Embodiment 3

[0049] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to the mass ratio of 1:2. In parts by weight, component A includes: 70 parts of bisphenol A epoxy resin, 10 parts of cationic water-based fluorocarbon resin, 15 parts of cationic emulsifier, 20 parts of absolute ethanol, 50 parts of titanium dioxide, 5 parts of phosphoric acid, 5 parts of polyurethane dispersant, 2 parts of silicone defoamer, 5 parts of deionization Water; component B includes 15 parts of polyamide surface-modified nano-titanium dioxide, 10 parts of absolute ethanol, 0.01 part of cellulose ether thickener, and 1 part of titanium dioxide.

[0050] The preparation method of nano-titanium dioxide modified on the surface of polyamide is as follows: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 90°C for 8 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mas...

technical field

[0001] The invention relates to the field of coatings, in particular to a two-component anti-cracking beautifying agent and a preparation method thereof. Background technique

[0002] With the development of building decoration materials, the application of ceramic tiles, stone materials, mosaics, wood lines and other materials is becoming more and more common. A large number of gaps are produced when materials are spliced, which makes the application of beauty joints more and more extensive. At present, the commonly used beautifying agents include one-component polymer emulsion type beautifying agent and oily two-component epoxy beautifying agent. Disadvantages such as scrub resistance, easy to mold and black in humid environment.

[0003] At present, amine curing agents are generally used in the two-component epoxy beautifying agent, for example, "a kind of water-based epoxy resin beautifying agent and its preparation method and application" disclosed in ...

Examples

Embodiment 1

[0035] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to a mass ratio of 1:1. In parts by weight, component A includes: 50 parts of bisphenol A epoxy resin, 5 parts of cationic water-based fluorocarbon resin, 10 parts of cationic emulsifier, 10 parts of absolute ethanol, 20 parts of titanium dioxide, 3 parts of phosphoric acid, 3 parts of polyurethane dispersant, 1 part of silicone defoamer, 30 parts of deionization Water; component B includes 20 parts of polyamide surface-modified nano-titanium dioxide, 30 parts of absolute ethanol, 2 parts of cellulose ether thickener, and 5 parts of titanium dioxide.

[0036]The preparation method of nano-titanium dioxide modified on the surface of polyamide is: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 80°C for 6 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mass volume ratio o...

Embodiment 2

[0042] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to the mass ratio of 1:0.5. In parts by weight, component A includes: 40 parts of bisphenol A epoxy resin, 0.1 part of cationic water-based fluorocarbon resin, 2 parts of cationic emulsifier, 5 parts of absolute ethanol, 5 parts of titanium dioxide, 0.1 part of phosphoric acid, 0.1 part of polyurethane dispersant, 0.01 part of silicone defoamer, 50 parts of deionization Water; component B includes 30 parts of polyamide surface-modified nano-titanium dioxide, 40 parts of absolute ethanol, 5 parts of cellulose ether thickener, and 10 parts of titanium dioxide.

[0043] The preparation method of nano-titanium dioxide modified on the surface of polyamide is: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 70°C for 5 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mass volum...

Embodiment 3

[0049] A two-component anti-cracking beautifying agent, which is formed by mixing component A and component B according to the mass ratio of 1:2. In parts by weight, component A includes: 70 parts of bisphenol A epoxy resin, 10 parts of cationic water-based fluorocarbon resin, 15 parts of cationic emulsifier, 20 parts of absolute ethanol, 50 parts of titanium dioxide, 5 parts of phosphoric acid, 5 parts of polyurethane dispersant, 2 parts of silicone defoamer, 5 parts of deionization Water; component B includes 15 parts of polyamide surface-modified nano-titanium dioxide, 10 parts of absolute ethanol, 0.01 part of cellulose ether thickener, and 1 part of titanium dioxide.

[0050] The preparation method of nano-titanium dioxide modified on the surface of polyamide is as follows: A) Add nano-titanium dioxide into absolute ethanol, stir and mix evenly, add silane coupling agent, stir at 90°C for 8 hours, filter and dry to obtain amino-modified nano-titanium dioxide, nano The mas...

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