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Yellowing-resistance nitrolacquer

A nitro paint, yellowing resistance technology, applied in coatings, polyester coatings, etc., can solve the problems of harmful gas volatilization pollution, easy damage, poor weather resistance and yellowing resistance, etc., to achieve good compatibility and good The effect of transparency, overall performance improvement

Inactive Publication Date: 2012-05-02
SHANGHAI DABAO CHEM PROD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other coatings, the weather resistance and yellowing resistance of the nitro coating film are poor, and it is easy to be damaged during use. Due to the low solid content of the coating itself, a large amount of harmful gas volatilizes and pollutes the environment after construction.

Method used

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  • Yellowing-resistance nitrolacquer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Anti-yellowing nitrocellulose primer: containing nitrocellulose main agent 70%; diluent 30%.

[0035]

[0036]

[0037]

[0038] The above-mentioned high-performance low-temperature curing polyurethane topcoat is used in conjunction with the primer. The actual test data is as follows:

[0039]

Embodiment 2

[0040] Example 2 Anti-yellowing nitro white topcoat: containing nitrocellulose main agent 62%; diluent 38%.

[0041]

[0042]

[0043]

[0044] When in use, mix the main agent containing nitrocellulose with the diluent, stir well and adjust to an appropriate viscosity.

[0045] The above-mentioned high-performance low-temperature curing all-whitening polyurethane topcoat is used in conjunction with the primer. The actual test data is as follows:

[0046]

Embodiment 3

[0047] Embodiment 3 anti-yellowing nitro transparent topcoat: containing nitrocellulose main agent 65%; diluent 35%.

[0048]

[0049]

[0050] When in use, mix the main agent containing nitrocellulose with the diluent, stir well and adjust to an appropriate viscosity.

[0051] The above-mentioned high-performance low-temperature curing polyurethane primer, the actual test data is as follows:

[0052]

[0053] In the above examples, the UV resistance test can show that the present invention has the advantage of yellowing resistance.

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PUM

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Abstract

The invention discloses a yellowing-resistance nitrolacquer and is characterized by comprising the following components in percentages by weight: 60-70% of nitrocotton-containing main agent, and 30-40% of diluent, wherein the nitrocotton-containing main agent comprises the following ingredients in the percentages by weight: 12-25% of nitrocotton, 20-25% of more than one polyester resin, 1-5% of epoxidized soybean oil, 6-21% of pigment or stuffing, 0.5-1% of dispersant, 0-0.5% of defoamer, 0.5-1% of flatting agent, 0.5-1% of gloss wax, 0-10% of extinction powder, and 12-18% of first solvent composed of more than one esters and alcohols; and the diluent is selected from any one or more than two of esters, ethers and aromatic hydrocarbons by mixing. The yellowing-resistance nitrolacquer of the invention has good transparency, hardness, scratch resistance and yellowing resistance.

Description

technical field [0001] The present discovery relates to a yellowing resistant nitro paint. Background technique [0002] Nitro coatings have a series of excellent physical properties. First, the surface dries quickly. Nitro coatings are volatile drying coatings that rely on solvent volatilization to cure the coating into a film. Second, it is easy to repair after the paint film is damaged. Nitro paint is a reversible paint, that is, the completely dry paint film can still be dissolved by the original solvent. trace. The third is that the coating has excellent decorative properties, the coating film is light in color, high in transparency, hard and wear-resistant, has good mechanical strength and certain water resistance, and is widely used in the coating of high-end furniture, high-end musical instruments, handicrafts, etc. However, compared with other coatings, the weather resistance and yellowing resistance of the nitro coating film are poor, and it is easy to be damaged...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D167/07C09D101/18C09D7/12C09D5/00
Inventor 陈贺生
Owner SHANGHAI DABAO CHEM PROD
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