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Modified polyester type fluorine-containing urethane acrylate polymer as well as synthesis and application thereof

A polyurethane acrylate and modified polyester technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of limited high-temperature applications, low glass transition temperature, poor hydrophobicity and weather resistance, and achieve impact resistance High strength, high glass transition temperature, and high transparency

Pending Publication Date: 2021-04-06
CHANGXING PHOTOELECTRIC MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional polycarbonate has a low glass transition temperature, poor hydrophobicity and weather resistance, which limit its application in high temperature fields.

Method used

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  • Modified polyester type fluorine-containing urethane acrylate polymer as well as synthesis and application thereof
  • Modified polyester type fluorine-containing urethane acrylate polymer as well as synthesis and application thereof
  • Modified polyester type fluorine-containing urethane acrylate polymer as well as synthesis and application thereof

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Embodiment Construction

[0058] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific examples.

[0059] Unless otherwise stated, the content percentages of all components in this specification are percentages by weight, ie wt.%.

[0060] 1. Synthesis of modified polyester fluorine-containing polyurethane acrylate

[0061] Example 1 - Resin A

[0062] (1) Synthesis of new copolyester [(CBDO-DMT)-co-(DMT-BDO)] polyol backbone

[0063] Add terephthalate (DMT) and 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) into the three-necked flask respectively, raise the temperature to 120°C, and wait for the reaction After the system becomes a uniform molten state, the catalyst dibutyltin oxide is added. Argon gas was introduced to keep the reaction system in an inert atmosphere, and then the temperature was raised to 180° C., and the methanol obtained in the reaction was distill...

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Abstract

The invention discloses a modified polyester type fluorine-containing urethane acrylate polymer as well as synthesis and application thereof. The synthesis method comprises the following steps: introducing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) with a special four-membered ring and a symmetrical methyl structure into polyester to prepare copolyester diol, and further enabling the prepared copolyester diol to participate in a fluorine-containing urethane acrylate reaction to obtain the modified polyester type fluorine-containing urethane acrylate polymer. The modified fluorine-containing urethane acrylate is added into light-cured resin, and a photoinitiator, a diluent and an assistant are added and uniformly stirred to obtain the ultraviolet-cured fluorine-containing urethane acrylate composition. The modified fluorine-containing urethane acrylate polymer prepared by the method provided by the invention has very strong hydrophobicity and weather resistance, excellent thermal stability, high adhesion, high transparency and good impact strength.

Description

technical field [0001] The invention belongs to the field of light-curing coating materials, in particular to a novel modified compound prepared from 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) and modified diisocyanate The polyester type fluorine-containing urethane acrylate polymer, especially relates to a modified fluorine-containing urethane acrylate polymer with strong hydrophobicity, weather resistance, and excellent thermal stability. It further relates to its application in various electronics, luminescent packaging materials, inks, coatings and adhesives. Background technique [0002] UV curing technology has the advantages of low energy consumption, environmental protection and fast curing speed, and is widely used in coatings, adhesives, inks, etc. UV curable materials are composed of photoinitiators, oligomers, reactive diluents and various additives, among which the properties of oligomers play a major role in the performance of materials. Polyurethane acry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/81C08G18/71C08G63/199C08G63/183C08G63/78C09D175/14
CPCC08G18/712C08G18/8116C08G63/199C08G63/183C08G63/78C09D175/14
Inventor 刘苗苗徐晶林耿弘涂伟萍丁秋莉
Owner CHANGXING PHOTOELECTRIC MATERIAL
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