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Light-color raw lacquer resin and preparation method thereof

A light-color, raw lacquer technology, applied in the field of raw lacquer, can solve the problems of deep color, difficult construction, and difficult toning, and achieve the effect of light color, easy spraying construction, and simple toning

Inactive Publication Date: 2016-04-06
中华全国供销合作总社西安生漆涂料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies existing in the prior art, the object of the present invention is to provide a light-colored lacquer resin to overcome defects such as dark color, difficult toning, difficult construction, and allergenicity of the lacquer resin, while retaining the environmental protection and excellent performance of the lacquer resin. Resin and its preparation method, the raw lacquer composite resin has the characteristics of light color, simple color matching, green environmental protection, good dryness, strong flexibility, etc.

Method used

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  • Light-color raw lacquer resin and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment provides a light-colored lacquer resin, which is prepared by polymerization of the following raw materials in parts by weight: 10% urushiol, 5% etherification reagent, 1% alkali catalyst, and 0.05% color reducing agent. %, vegetable oil is 12%, rosin is 10%, dibasic anhydride is 5%, and mineral spirits is 56.95%.

[0028] The etherification reagent is monochloroacetic acid; the alkali catalyst is sodium hydroxide; the color reducing agent is hypophosphorous acid; the vegetable oil is tung oil, which can also be replaced by catalpa oil; The acid anhydride is maleic anhydride; the solvent oil is No. 200 solvent oil, which can also be replaced by butyl acetate or cyclohexanone.

[0029] The raw lacquer light-colored resin in this example is prepared according to the above-mentioned raw material formula and synthesized through the following reaction, which specifically includes the following steps:

[0030] Step 1, mix raw lacquer with No. 200 solvent napht...

Embodiment 2

[0035] This embodiment provides a light-colored resin for raw lacquer, which is prepared by polymerization of the following raw materials in parts by weight: 18% urushiol, 7% etherification reagent, 1% alkali catalyst, and 0.04% color reducer %, vegetable oil is 10%, rosin is 8%, dibasic anhydride is 4%, and mineral spirits is 51.96%.

[0036] The etherification reagent is monochloropropionic acid; the alkali catalyst is lithium hydroxide; the color reducing agent is hypophosphorous acid; the vegetable oil is composed of tung oil and linseed oil in a mass ratio of 3:1 The mixed vegetable oil can also be replaced by a mixed vegetable oil composed of tung oil and catalpa oil in a mass ratio of 3:1; the dibasic acid anhydride is phthalic anhydride; the solvent oil is dimethyl carbonate.

[0037] The raw lacquer light-colored resin in this example is prepared according to the above-mentioned raw material formula and synthesized through the following reaction, which specifically in...

Embodiment 3

[0043] This embodiment provides a light-colored lacquer resin, which is prepared by polymerization of the following raw materials in parts by weight: 15% urushiol, 7% etherification reagent, 0.5% alkali catalyst, and 0.02% color reducing agent %, vegetable oil is 10%, rosin is 8%, dibasic anhydride is 2%, and mineral spirits is 57.48%.

[0044] The etherification reagent is ethyl chloroacetate; the alkali catalyst is lithium hydroxide; the color reducer is sodium phosphite; the vegetable oil is linseed oil, and tung oil, linseed oil and catalpa The oil is replaced by mixed vegetable oil with a mass ratio of 3:0.5:0.5; the dibasic acid anhydride is succinic anhydride; and the solvent oil is xylene.

[0045] The raw lacquer light-colored resin in this example is prepared according to the above-mentioned raw material formula and synthesized through the following reaction, which specifically includes the following steps:

[0046] Step 1, mix raw lacquer and xylene according to 1:...

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Abstract

The invention discloses light-color raw lacquer resin and a preparation method thereof. The light-color raw lacquer resin comprises the following raw materials in percentage by weight: 10%-18% of urushiol, 5%-7% of an etherified reagent, 0.5%-1% of a base catalyst, 0.02%-0.05% of a color reducing agent, 10%-12% of vegetable oil, 8%-10% of rosin, 2%-5% of dicarboxylic anhydride and 51.96%-57.48% of solvent oil, wherein the weight sum of the raw materials is 100%. During preparation, a urushiol solvent oil mixed solution is prepared firstly, then the color reducing agent and the etherified reagent are added into the urushiol solvent oil mixed solution for reaction, finally, the vegetable oil, rosin and dicarboxylic anhydride are added, the mixture is heated to 180-200 DEG C, the reaction is kept for 2-4 h, heating is stopped after reaching the reaction endpoint, the material is cooled to be 90 DEG C or below, and the solvent oil is added, so that the light-color raw lacquer resin is obtained. The light-color raw lacquer resin disclosed by the invention is free of raw lacquer sensitivity, light in color, simple in color matching, good in dryness, and convenient to construct and can be sprayed, coated and brushed. A paint film keeps excellent performance of the raw lacquer and meanwhile, has the characteristics of being light in color, environmentally friendly, high in flexibility, resistant to corrosion, resistant to water and the like.

Description

technical field [0001] The invention belongs to the field of raw lacquer and relates to a light-colored resin for raw lacquer, in particular to a light-colored resin for raw lacquer and a preparation method thereof. Background technique [0002] Raw lacquer is a specialty resource in my country, and is known as the "King of Paint" because of its unique and excellent performance. However, raw lacquer also has shortcomings, such as allergenicity, specific conditions for film formation, heavy color, high viscosity, difficult construction, and poor alkali resistance. In particular, the natural color of raw lacquer is "black", and the color of lacquerware and furniture is monotonous, which affects the competitiveness of the market. For this reason, the development of light-colored raw lacquer is a common scientific research topic in the lacquerware industry, and light-colored raw lacquer is a problem that has not been well solved for a long time in the lacquer industry. In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/04
CPCC09F1/04
Inventor 王成民李东旭张娟妮
Owner 中华全国供销合作总社西安生漆涂料研究所
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