Phenolic resin and synthetic method thereof

A urushiol resin and urushiol technology are applied in the field of resin and its synthesis and preparation, which can solve the problems of poor UV resistance, limited application scope, poor flexibility, etc., and achieve the effects of reliable performance, improved brittleness, and easy control of conditions.

Inactive Publication Date: 2014-08-13
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

However, the paint film of urushiol formal resin is brittle, poor in flexibility, deep in color, and poor in UV resistance. It is prone to photoaging when used outdoors, and it is not easy to preserve. The application range is greatly limited.

Method used

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  • Phenolic resin and synthetic method thereof
  • Phenolic resin and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The urushiol resin of the present embodiment, its raw material formula is by mass percentage, is made up of following components:

[0029] component name

Mass percentage (%)

urushiol

15%

formaldehyde

4.3%

Ammonia

2%

maleic anhydride

10%

Tung oil

10%

Dibenzoyl peroxide

0.3%

Xylene

58.4%

[0030] The urushiol resin of the present embodiment is compounded according to the above-mentioned raw material formula, and is synthesized through the following reaction, which specifically includes the following steps:

[0031] (1) Mix urushiol and xylene in a mass ratio of 1:2, let stand, and then use a high-speed centrifuge to separate impurities to obtain urushiol solution;

[0032] (2) Add urushiol solution, tung oil, formaldehyde and ammonia water into the reactor equipped with agitator, thermometer, reflux condenser and oil-water separation device, adjust the temperatur...

Embodiment 2

[0037] The urushiol resin of the present embodiment, its raw material formula is by mass percentage, is made up of following components:

[0038] component name

Mass percentage (%)

urushiol

18%

Furfural

5%

ammonium chloride

2.5%

maleic anhydride

8%

Tung oil

10%

Dibenzoyl peroxide

0.2%

Butyl acetate

56.3%

[0039] The urushiol resin of the present embodiment is compounded according to the above-mentioned raw material formula, and is synthesized through the following reaction, which specifically includes the following steps:

[0040] (1) Mix urushiol and butyl acetate in a mass ratio of 1:2, let stand, and then use a high-speed centrifuge to separate impurities to obtain urushiol solution;

[0041] (2) Add urushiol solution, tung oil, furfural and ammonium chloride into the reactor equipped with stirrer, thermometer, reflux condenser and oil-water separation device, adj...

Embodiment 3

[0046] The urushiol resin of the present embodiment, its raw material formula is by mass percentage, is made up of following components:

[0047] component name

Mass percentage (%)

urushiol

20%

Paraformaldehyde

5%

ammonium chloride

2%

Phthalic anhydride

5%

linseed oil

11%

lauryl peroxide

0.5%

No. 200 solvent oil

56.5%

[0048] Urushiol resin in this embodiment is formulated according to the above-mentioned raw material formula, and is synthesized through the following reaction, which specifically includes the following steps:

[0049] (1) Mix urushiol and No. 200 solvent oil according to the mass ratio of 1:2, let it stand, and then use a high-speed centrifuge to separate impurities to obtain urushiol solution;

[0050] (2) Add urushiol solution, linseed oil, paraformaldehyde and ammonium chloride into the reactor equipped with stirrer, thermometer, reflux condenser and...

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PUM

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Abstract

The invention discloses phenolic resin and a synthetic method thereof. The prepared phenolic resin is composed of the following raw materials in parts by weight: 15%-20% of urushiol, 4%-6% of a aldehyde compound, 1.5%-2.5% of an alkaline catalyst, 5%-10% of binary anhydride, 8%-15% of dry vegetable oil, 0.1%-0.7% of an initiating agent, 50%-60% of a solvent, wherein the sum of the percentages of the raw materials is 100%. According to the invention, the synthetic process is simple, the condition is easy to control, the product is uniform, and a coating film is rich in elasticity, high in brightness, good in adhesive force and light in color; and the phenolic resin not only avoids toxicity of raw lacquer, but also overcomes the weaknesses such as poor weather resistance, poor acid and alkaline resistances, and poor durability, enlarges application range of the raw lacquer, and enables the raw lacquer to be widely applied to the fields such as buildings, decoration, furniture, petroleum and chemical engineering.

Description

technical field [0001] The invention relates to the technical field of resin and its synthesis and preparation, in particular to a novel urushiol resin and its synthesis method. The urushiol resin is an intermediate and is especially suitable for preparing heavy-duty anti-corrosion coatings and other special functional coating resins. . Background technique [0002] Raw lacquer is an important specialty product in my country, and its output accounts for more than 85% of the world's total output. It is known as "national lacquer". Raw lacquer has a long history of use, and a large number of unearthed lacquerware proves that lacquer has been used in my country for 7,000 years. With the shortage of fossil resources and the enhancement of people's awareness of environmental protection, it is a development trend of the current chemical industry to replace fossil resources with biomass resources to develop fine chemicals. As a unique biomass resource in my country, raw lacquer i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/32C09D161/14C09D5/08
Inventor 张飞龙李东旭
Owner 中华全国供销合作总社西安生漆涂料研究所
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