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Fluorine-containing polyurethane acrylate resin and preparation method and application thereof

A technology of urethane acrylate and polycarbonate two, applied in the field of photocurable materials, can solve problems such as inability to achieve performance, and achieve the effects of low surface tension, high crosslinking density, and reducing the overall coefficient of friction

Inactive Publication Date: 2021-08-03
东莞三桐材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the current main method to solve these technical needs is to add some fluorine-containing, silicon acrylate additives and wear-resistant organic and inorganic powders to some high-functionality polyurethane acrylates, but through this The way of external addition is always due to the compatibility of additives and the surface migration effect of fluorine-containing elements, and even the sedimentation caused by system compatibility problems due to the addition of inorganic powders, often cannot meet the product requirements. performance

Method used

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  • Fluorine-containing polyurethane acrylate resin and preparation method and application thereof
  • Fluorine-containing polyurethane acrylate resin and preparation method and application thereof
  • Fluorine-containing polyurethane acrylate resin and preparation method and application thereof

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preparation example Construction

[0023] A preparation method of fluorine-containing polyurethane acrylate resin, comprising the steps of:

[0024] Put fluorine-containing polyether alcohol, polycarbonate diol, isocyanate and catalyst in a reaction vessel, heat it to 60-75°C under the protection of dry air, and keep it warm for 1-3 hours until the theoretical value of NC0% is reached to obtain the chain A fluorine-containing NCO-terminated prepolymer;

[0025] Add a polymerization inhibitor and a hydroxyl-containing polyfunctional acrylate monomer to the NCO-terminated prepolymer obtained above, and heat-preserve at 85-90°C for 3-4 hours, and wait until the NCO is completely consumed to obtain a fluorine-containing polyurethane acrylate resin.

[0026] Further, the fluorine-containing polyether alcohol is perfluoropolyether alcohol containing terminal hydroxyl, and the molecular weight of the perfluoropolyether alcohol containing terminal hydroxyl is 1000-5000.

[0027] Further, the structural formula of the ...

Embodiment 1

[0036] Put 50g of fluoropolyether alcohol PFPE-1000, 75g of polycarbonate diol T5651, 33.6g of hexamethylene diisocyanate and 0.1g of catalyst in a reaction vessel, and heat it to 60~ 75°C, heat preservation reaction for 1 to 3 hours, wait until NC0% reaches half of the initial value, obtain the NCO-terminated prepolymer containing fluorine in the chain segment, and proceed to the next step;

[0037] Add 1g of polymerization inhibitor MEHQ and 110g of pentaerythritol triacrylate to the obtained NCO-terminated prepolymer, raise the temperature to 85-90°C, keep the reaction for 3-4 hours, and wait until the NCO is completely consumed to obtain the final product.

Embodiment 2

[0039] Put 30g of fluoropolyether alcohol PFPE-1000, 85g of polycarbonate diol T5651, 33.6g of hexamethylene diisocyanate and 0.1g of catalyst in a reaction vessel, and heat it to 60~ 75°C, heat preservation reaction for 1 to 3 hours, wait until NC0% reaches half of the initial value, obtain the NCO-terminated prepolymer containing fluorine in the chain segment, and proceed to the next step;

[0040] Add 1g of polymerization inhibitor MEHQ and 200g of dipentaerythritol pentaacrylate to the obtained NCO-terminated prepolymer, raise the temperature to 85-90°C, keep the temperature for 3-4 hours, and wait until the NCO is completely consumed to obtain the final product .

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Abstract

The invention relates to the field of photocuring materials, in particular to a preparation method of fluorine-containing polyurethane acrylate resin, the preparation method comprises the following steps: putting fluorine-containing polyether alcohol, polycarbonate diol, isocyanate and a catalyst into a reaction container, heating to 60-75 DEG C under the protection of dry air, carrying out heat preservation reaction for 1-3 hours, and after reaching the theoretical value of NCO0%, obtaining an NCO-terminated prepolymer with a chain segment containing fluorine; and adding a polymerization inhibitor and a hydroxyl-containing polyfunctional acrylate monomer into the obtained NCO-terminated prepolymer, carrying out heat preservation reaction at 85-90 DEG C for 3-4 hours, and obtaining the fluorine-containing polyurethane acrylate resin after the NCO is completely consumed. The invention provides fluorine-containing polyurethane acrylate resin which can solve the problem of system compatibility and has fingerprint resistance, doodling resistance and steel wool resistance. The invention also provides a preparation method and application of the fluorine-containing polyurethane acrylate resin, which have simple steps and meet requirements.

Description

technical field [0001] The invention relates to the field of photocurable materials, in particular to a fluorine-containing polyurethane acrylate resin, its preparation method and its application. Background technique [0002] As a new type of rapid prototyping method, photocuring technology has been continuously improved in the application of coatings in many fields. Recently, with people's functional requirements for anti-fingerprint, anti-graffiti, and steel wool resistance on the surface of mobile phones, notebooks and other electronic products It has also been continuously expanded, and some fluorine-containing and silicon-modified polyurethane acrylates can play a vital role because of their special functional groups and structures. [0003] At present, the current main method to solve these technical needs is to add some fluorine-containing, silicon acrylate additives and wear-resistant organic and inorganic powders to some high-functionality polyurethane acrylates, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/40C08G18/44C08G18/50C08G18/67C09D11/102C09D175/14
CPCC08G18/672C08G18/4018C08G18/5015C08G18/44C09D175/14C09D11/102
Inventor 许建辉胡杨明
Owner 东莞三桐材料科技有限公司