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Anti-aging coating for automobile body and preparation method thereof

A technology for anti-aging coatings and car bodies, applied in epoxy resin coatings, anti-fouling/underwater coatings, coatings, etc. Improves anti-aging properties and the effect of improving anti-aging properties

Inactive Publication Date: 2019-06-14
GUANGZHOU JIAJIE MACHINERY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aging resistance, adhesion and antibacterial properties of existing automotive coatings are relatively poor

Method used

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  • Anti-aging coating for automobile body and preparation method thereof
  • Anti-aging coating for automobile body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An anti-aging coating for automobile bodies, which is composed of the following raw material components in parts by mass: 65 parts of polytetrafluoroethylene emulsion, 30 parts of epoxy resin, 15 parts of dicyclohexylmethane diisocyanate, 10 parts of 2,4-diisocyanate Hydroxybenzophenone, 10 parts of triethylenediamine nickel dichloride, 25 parts of ethyl acetate, 11 parts of diatomaceous earth, 8 parts of silane coupling agent KH-550, 12 parts of nano-silica, 6 parts of hollow Glass microspheres, 13 parts of mixed powder, 6 parts of pigment, 2.5 parts of dispersant, 2.6 parts of film-forming aid, 1.8 parts of leveling agent, 1.8 parts of defoamer and 17 parts of deionized water.

[0028] The mixed powder is made by mixing zinc oxide, titanium dioxide and mica powder with a particle size of 100 mesh at a mass ratio of 1:2:1.

[0029] The pigment is zinc phosphate.

[0030] Dispersant selects stearic acid monoglyceride for use.

[0031] The film-forming aid is selected ...

Embodiment 2

[0043] An anti-aging coating for automobile body, which is composed of the following raw material components in parts by mass: 60 parts of polytetrafluoroethylene emulsion, 35 parts of epoxy resin, 13 parts of dicyclohexylmethane diisocyanate, 12 parts of 2,4-diisocyanate Hydroxybenzophenone, 8 parts of triethylenediamine nickel dichloride, 30 parts of ethyl acetate, 9 parts of diatomaceous earth, 10 parts of silane coupling agent KH-550, 10 parts of nano-silica, 7 parts of hollow Glass microspheres, 12 parts of mixed powder, 7 parts of pigment, 2.3 parts of dispersant, 3.0 parts of film-forming aid, 1.5 parts of leveling agent, 2.0 parts of defoamer and 15 parts of deionized water.

[0044] The mixed powder is made by mixing zinc oxide, titanium dioxide and mica powder with a particle size of 150 mesh at a mass ratio of 1:2:1.

[0045] The pigment is titanium dioxide.

[0046] Dispersant selects glyceryl tristearate for use.

[0047] The film-forming aid is selected from et...

Embodiment 3

[0059] An anti-aging coating for automobile body, which is composed of the following raw material components in parts by mass: 70 parts of polytetrafluoroethylene emulsion, 38 parts of epoxy resin, 17 parts of dicyclohexylmethane diisocyanate, 14 parts of 2,4-di Hydroxybenzophenone, 15 parts triethylenediamine nickel dichloride, 32 parts ethyl acetate, 13 parts diatomaceous earth, 11 parts silane coupling agent KH-550, 15 parts nano-silica, 9 parts hollow Glass microspheres, 16 parts of mixed powder, 8 parts of pigment, 3.2 parts of dispersant, 3.2 parts of film-forming aid, 2.5 parts of leveling agent, 2.3 parts of defoamer and 20 parts of deionized water.

[0060] The mixed powder is made by mixing zinc oxide, titanium dioxide and mica powder with a particle size of 170 mesh according to the mass ratio of 1:2:1.

[0061] The pigment is zinc phosphate.

[0062] Dispersant selects stearic acid monoglyceride for use.

[0063] The film-forming aid is selected from dodecyl alco...

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Abstract

The invention relates to the technical field of coating preparation, in particular to an anti-aging coating for an automobile body and a preparation method of the anti-aging coating. The coating is composed of the following raw material components: polytetrafluoroethylene emulsion, epoxy resin, dicyclohexylmethane diisocyanate, 2,4-dihydroxybenzophenone, triethylenediamine nickel dichloride, ethylacetate, diatomaceous earth, a silane coupling agent KH-550, nano silicon dioxide, hollow glass microspheres, mixed powder, pigment, a dispersing agent, a coalescing agent, a flatting agent, a defoaming agent and deionized water. According to the invention, the mixed powder is connected with epoxy resin through a bridge, namely, the silane coupling agent KH-550, thus the epoxy resin which originally has very good corrosion resistance has very good ultraviolet resistance, and the aging rate of a coating film due to irradiation of sunlight can be remarkably reduced, and the service life of thecoating is effectively prolonged; and under the combined action of the polytetrafluoroethylene emulsion and the modified epoxy resin, the aging resistance of the coating is obviously improved.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to an anti-aging paint for automobile bodies and a preparation method thereof. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, or oil, or emulsion, with or without adding pigments, fillers, adding The corresponding additives are viscous liquids prepared with organic solvents or water. The authoritative book "Painting Technology" in the Chinese coatings industry defines: "Painting is a material that can be coated on the surface of an object by different construction techniques to form a solid adhesion, a certain strength, and a continuous state. Thin film. The film formed in this way is commonly called coating film, also known as paint film or coating.” In the early days, most of the paints used vegetable oil as the mai...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D163/00C09D7/61C09D7/62C09D7/48C09D5/14
Inventor 向德志刘德常
Owner GUANGZHOU JIAJIE MACHINERY EQUIP
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