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Polyurethane acrylate prepolymer and preparation method thereof as well as paint prepared by same

A technology of urethane acrylate and hydroxyethyl acrylate, which is applied in the field of urethane acrylate prepolymer and its preparation, can solve the problem of unsatisfactory gloss, elasticity, flexibility and adhesion level of wooden floors and difficult to achieve breakthroughs in the quality of wooden floors , unreasonable preparation process and other problems, to achieve the effect of excellent curing rate, superior curing rate and superior toughness

Active Publication Date: 2013-04-10
JIUSHENG WOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively unreasonable preparation process of the existing polyurethane prepolymer and the preparation process of making the corresponding paint from the polyurethane prepolymer, the curing rate of the prepared paint is low, and the paint coated with the paint is The gloss, elasticity, flexibility and adhesion level of the wooden floor are not ideal, and finally make it difficult to achieve a breakthrough in the quality of the wooden floor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A polyurethane acrylate prepolymer, the prepolymer includes 1000 parts by mass of hexamethylene diisocyanate, 3 parts of dibutyltin laurate, 500 parts of polyethylene glycol, and 2 parts of hydroquinone And 1150 parts of hydroxyethyl acrylate.

[0017] The preparation method of above-mentioned polyurethane acrylate prepolymer comprises the following steps;

[0018] a. In a 500ml four-necked flask equipped with a stirrer, a condenser and a thermometer, add 1000 hexamethylene diisocyanate (HDI) and 3 parts of the total amount of dibutyltin laurate (DBTDL), and use a small amount of compound organic Adjust the PH value to 5 with acid, pass in dry nitrogen for 5-10 minutes, and stir with an electric stirrer to make it evenly mixed to obtain product A;

[0019] b. Raise the temperature of product A to 40-50°C, slowly drop 500 parts of polyethylene glycol (PEG1000) with an average molecular weight of 1000 after dehydration treatment into the four-necked flask w...

Embodiment 2

[0022] Embodiment 2: a kind of polyurethane acrylate prepolymer, this prepolymer comprises 900 parts of hexamethylene diisocyanate, 5 parts of dibutyltin laurate, 500 parts of polyethylene glycol, 2 parts of hydroquinone by mass parts and 1300 parts of hydroxyethyl acrylate.

[0023] The preparation method of above-mentioned polyurethane acrylate prepolymer comprises the following steps;

[0024] a. In a 500ml four-necked flask equipped with a stirrer, a condenser and a thermometer, add 1000 hexamethylene diisocyanate (HDI) and 3 parts of the total amount of dibutyltin laurate (DBTDL), and use a small amount of compound organic Adjust the PH value to 5 with acid, pass in dry nitrogen for 5-10 minutes, and stir with an electric stirrer to make it evenly mixed to obtain product A;

[0025] b. Raise the temperature of product A to 40-50°C, slowly drop 500 parts of polyethylene glycol (PEG1000) with an average molecular weight of 1000 after dehydration treatment into the four-nec...

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Abstract

The invention discloses a polyurethane acrylate prepolymer and a preparation method thereof, as well as paint prepared by the polyurethane acrylate prepolymer. The prepolymer comprises the following components in part by mass: 900-1100 parts of hexamethylene diisocyanate, 2-5 parts of dibutyl tin laurate, 400-600 parts of polyethylene glycol, 1-3 parts of hydroquinone and 1000-1300 parts of hydroxyethyl acrylate. According to the invention, the paint prepared by the polyurethane acrylate prepolymer is high in curing rate, can effectively improve gloss, flexibility and adhesion level of floorboards, and is excellent in use effect.

Description

technical field [0001] The invention relates to a polyurethane acrylate prepolymer and a preparation method thereof, and a paint prepared by using the polyurethane acrylate prepolymer, which belongs to the field of wood floor coating. Background technique [0002] With its advantages of natural environmental protection, thick and warm texture, beautiful and natural texture, wooden floor is becoming more and more popular in ordinary families. With the continuous pursuit of people's quality of life, the performance requirements of wooden flooring are also getting higher and higher. The paint applied to the surface of the wooden floor plays a vital role in the performance of the wooden floor. For example, polyurethane prepolymer has relatively high toughness, flexibility, corrosion resistance and adhesion strength. In order to make the wooden floor have the same Due to its characteristics, polyurethane prepolymers are increasingly used as paint raw materials in the flooring in...

Claims

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Application Information

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IPC IPC(8): C08G18/73C08G18/67C08G18/48C09D175/14
Inventor 孙伟圣王艳伟
Owner JIUSHENG WOOD
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