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Vegetable oil-based waterborne non-isocyanate polyurethane acrylate

A polyurethane acrylate, water-based non-isocyanate technology, used in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor water resistance, and achieve the effects of easy operation, high reactivity, and wide sources

Active Publication Date: 2020-07-10
广东恒和永盛集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of vegetable oil-based water-based non-isocyanate urethane acrylate and its coating for the use of toxic isocyanates or poor water resistance of water-based urethane acrylate coatings in the existing water-based urethane acrylate synthesis process. Glycerol cyclocarbonate (A), 2-mercaptosuccinic acid (B), polyhydroxylated vegetable oil, diamine (C) and glycidyl methacrylate (D) were used as raw materials to prepare a novel vegetable oil-based Water-based polyurethane acrylate has high reactivity, convenient construction and excellent physical properties. It is foreseeable that this material will usher in a broad market prospect, especially for furniture wood coatings, kitchen and bathroom coatings and other fields

Method used

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  • Vegetable oil-based waterborne non-isocyanate polyurethane acrylate
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  • Vegetable oil-based waterborne non-isocyanate polyurethane acrylate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The preparation steps of vegetable oil-based water-based non-isocyanate urethane acrylate are as follows:

[0035] (1) Dissolve 2.4mol glycerol cyclocarbonate (A), 1mol 2-mercaptosuccinic acid (B), and 3wt% p-toluenesulfonic acid in 50mol methylene chloride and add them to the reaction flask, and reflux at 75°C for 9h; Washing with deionized water three times, separating the liquids, drying the solvent phase with anhydrous sodium sulfate, and rotary evaporation to obtain the intermediate product I;

[0036] Described p-toluenesulfonic acid consumption is the percentage of A, B gross mass;

[0037] Its infrared characteristic absorption peak data is as follows: IR: 1801cm -1 : cyclocarbonate-C=O exists; 1744cm -1 : Ester-C=O exists; 2558cm -1 :-SH exists; 3563cm -1 :-OH disappears.

[0038] (2) Dissolve the aminolytic tung oil containing 1mol carbon-carbon double bond, 1.2mol I, 1wt% photoinitiator 1173 in 80mol methylene chloride, react with ultraviolet light at ro...

specific Embodiment 2-6

[0051] Specific embodiment 2-6, other are with specific embodiment 1, difference is following table:

[0052]

[0053]

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Abstract

The invention belongs to the field of polymer materials, and relates to vegetable oil-based waterborne non-isocyanate polyurethane acrylate and a coating thereof. According to the method, glycerol cyclic carbonate (A), 2-mercaptosuccinic acid (B), polyhydroxylated vegetable oil, diamine (C) and glycidyl methacrylate (D) are used as the raw materials, and multi-step reaction is carried out to prepare the novel vegetable oil-based waterborne polyurethane acrylate, which is then prepared into paint. The novel vegetable oil-based waterborne polyurethane acrylate not only effectively solves the problems of poor water resistance and the like of toxic isocyanate or waterborne polyurethane acrylate paint used in the existing waterborne polyurethane acrylate synthesis process, but also has excellent physical properties. Predictably, the material can have a wide market prospect, and is especially suitable for the fields of furniture wood lacquer, kitchen and bath coatings and the like.

Description

technical field [0001] The invention relates to a vegetable oil-based water-based non-isocyanate polyurethane acrylate and a coating thereof. The invention belongs to the field of polymer materials. Background technique [0002] Vegetable oils are triglycerides of long carbon chain acids containing double bonds, which are widely distributed in nature. Due to the special structure and degradability of vegetable oil, the polymer obtained from it is not only low in cost, but also environmentally friendly, and is widely used in many fields such as polyurethane, coatings, and biomedicine. [0003] On the other hand, non-isocyanate polyurethane (NIPU) is a new generation of environmentally friendly polyurethane formed by the reaction of cyclic carbonate oligomers and primary amine oligomers. It does not use isocyanate as raw material and can completely change the high-risk and high-toxic polyurethane industry , high pollution status, while retaining the excellent mechanical prop...

Claims

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Application Information

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IPC IPC(8): C08G71/04C09D175/14
CPCC08G71/04C09D175/14
Inventor 张玉贞
Owner 广东恒和永盛集团有限公司
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