Preparation method of nitrolacquer

A technology of nitro lacquer and nitrocellulose, applied in coating and other directions, can solve problems such as carcinogenicity, allergies, and asthma.

Inactive Publication Date: 2007-03-07
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that phthalates can affect the development of the human reproductive system and may cause allergies, trigger asthma, and even cause cancer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] With 0.2kg fatty acid butyl ester mixture and 8kg solid content be the coconut oil modified alkyd resin synthetically prepared by the glycerol and phthalic anhydride of coconut oil modification of 70% by weight with 8kg solid content, its viscosity is 40s, acid value 7.5mgKOH / g, put it into the powder mixer, gradually add 10kg of rutile titanium dioxide pigment under the condition of stirring, continue to stir until there is no raw powder after adding the pigment, and then put it into the three-roll machine for roller milling until the particle size of the color paste is ≤20μm Stop the roller mill and take it off for later use. Then, add 36kg butyl acetate, 25kg ethanol and the slurry prepared above into a 9kg nitrocellulose dissolving tank, stir and adjust the color to within the color difference range of the sample, and then stir for 1.5 hours to make nitro paint.

Embodiment 2

[0015] Except adding 0.1kg fatty acid butyl ester mixture and 10kg solid content 70% by weight coconut oil modified alkyd resin, 8kg high-pigment carbon black, 40kg ethyl acetate and 27kg ethanol and 8kg nitrocellulose, toned to the model color difference range In addition to stirring for 1 hour, other operating steps are exactly the same as in Example 1.

Embodiment 3

[0017] Except that adding 0.3kg fatty acid butyl ester mixture and 5kg solid content is 70% by weight coconut oil modified alkyd resin, 5kg phthalocyanine blue pigment, 30kg butyl acetate and 20kg butanol and 10kg nitrocellulose, toning to model color difference Within the scope, stir again except 2 hours, other operation steps are exactly the same as embodiment 1.

[0018] The fatty acid butyl ester mixture in Examples 1-3 is produced by COGNIS, Germany, and the trade name is Edenol-BS20N.

[0019] Its performance index of the nitro paint prepared by embodiment 1-3 is as follows:

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PUM

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Abstract

The invention discloses nitrate cellulose with 11.7-12.2% nitrogen, which comprises the following parts: 19-13wt% modified alkide resin with 70% coconut oil, 5-10wt% dye, 0.1-0.3wt% fatty butyl ester composite plasticizer and 67-50% composite solvent with butyl acetate and butanol or alcohol. The main index of paint reaches environmental protective request, which contains not more than 0.1% phthalandione ester.

Description

technical field [0001] The present invention relates to a kind of preparation method of nitro lacquer, more precisely, the present invention relates to a kind of preparation method of nitro lacquer based on nitrocellulose. Background technique [0002] Nitro acid is easy to apply by spraying, and it has excellent adhesive properties. Excellent drying and pigment dispersing properties. Coatings for wood furniture and fixtures, the largest markets are automotive and wood furniture coatings. Because of its good decorative properties and excellent repair performance, it is an old variety as a lacquer, but it still radiates youthful vitality. [0003] People in today's world are more aware of environmental protection, and improving the environment and protecting their health have become people's ideas. A new turning point has appeared in the process of making nitro-lacquer detoxification, a method for eliminating toxic benzene solvents, such as prior art, Chinese patent CN1171...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/18
Inventor 朱健孙红芳
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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