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A kind of tertiary carbonate-polyurethane modified epoxy acrylate UV resin and preparation method thereof

An epoxy acrylate and polyurethane modification technology, which is applied in the direction of polyurea/polyurethane coatings, inks, coatings, etc., can solve the problems of not being able to give full play to its advantages, and achieve the goal of improving system compatibility, reducing viscosity, and improving miscibility Effect

Active Publication Date: 2022-05-27
英德科迪颜料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned modification methods of epoxy acrylate can only improve the performance of a certain aspect, and cannot give full play to the advantages of other aspects.

Method used

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  • A kind of tertiary carbonate-polyurethane modified epoxy acrylate UV resin and preparation method thereof
  • A kind of tertiary carbonate-polyurethane modified epoxy acrylate UV resin and preparation method thereof
  • A kind of tertiary carbonate-polyurethane modified epoxy acrylate UV resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of preparation steps of tertiary carbonate-polyurethane modified epoxy acrylate UV resin A:

[0036] a), prepare isocyanate-acrylic acid functional monomer TDI-HEMA: by weight, add 87.0 parts of TDI-80 and 0.06 part of DBTDL in a four-necked flask equipped with a reflux condenser, a thermometer, a dropping funnel and a stirrer, Stir the temperature, slowly dropwise add a mixture of 65.0 parts of methacrylic acid-α-hydroxyethyl ester, 0.1 part of hydroquinone and 35.0 parts of acetone at 30 to 45 ° C. After the dropwise addition, the temperature is raised to 45 to 50 ° C to continue the reaction. 3.5h, then sampling every 30min to detect the NCO value of the system, when the detected NCO value is half of the initial value, the reaction is stopped to obtain isocyanate-acrylic acid functional monomer TDI-HEMA;

[0037]b), preparation of epoxy acrylate E44A: add 227.5 parts of bisphenol A epoxy resin E-44 to the four-necked flask equipped with a reflux condenser, a t...

Embodiment 2

[0041] A preparation step of tertiary carbonate-polyurethane modified epoxy acrylate UV resin B:

[0042] a), preparation of isocyanate-acrylic acid functional monomer MDI-HEA: add 120.0 parts of IPDI and 0.07 parts of DBTDL to a four-necked flask equipped with a reflux condenser, a thermometer, a dropping funnel and a stirrer, stir and heat up, and at 30-45 A mixture of 62.6 parts of acrylic acid-β-hydroxyethyl ester, 0.1 part of hydroquinone and 35.0 parts of acetone was slowly added dropwise at ℃. After the dropwise addition was completed, the temperature was raised to 45-50 ℃ to continue the reaction for 3.5 hours, and then sampling was performed every 30 minutes for detection. The NCO value of the system, when the detected NCO value is half of the initial value, the reaction is stopped, and the isocyanate-acrylic acid functional monomer IPDI-HEA is obtained;

[0043] b), preparation of epoxy acrylate E51A: add 211.8 parts of bisphenol A epoxy resin E-51 to the four-necked...

Embodiment 3

[0047] A preparation step of tertiary carbonate-polyurethane modified epoxy acrylate UV ester resin C:

[0048] a), preparation of isocyanate-acrylic acid functional monomer MDI-HEMA: add 125.0 parts of MDI and 0.08 part of DBTDL to a four-necked flask equipped with a reflux condenser, a thermometer, a dropping funnel and a stirrer, stir and heat up, at 30-45 A mixture of 65.0 parts of β-hydroxyethyl methacrylate, 0.1 part of hydroquinone and 35.0 parts of acetone was slowly added dropwise at ℃, the dropwise addition was completed, the temperature was raised to 45-50 ℃ and the reaction was continued for 4 hours, and then sampling was performed every 30 minutes. Detect the NCO value of the system, stop the reaction when the detected NCO value is half of the initial value, and obtain the isocyanate-acrylic acid functional monomer MDI-HEMA;

[0049] b), preparation of epoxy acrylate E51A: add 196.0 parts of bisphenol A epoxy resin E-51 to the four-necked flask equipped with a ref...

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Abstract

The present invention relates to a kind of tertiary carbonate-polyurethane modified epoxy acrylate UV resin and preparation method thereof, described UV resin contains three functional active groups and a group shape alkane hydrophobic group; Monomer and epoxy acrylate to prepare isocyanate-epoxy acrylate prepolymer, and then modify the prepolymer with tertiary carbonic acid glycidyl ester; the tertiary carbon alkyl on the molecular chain can reduce the viscosity of the resin, Its tertiary carbon alkyl group has excellent hydrophobicity, pigment wettability, system compatibility and storage stability, and can meet the performance requirements of colored UV coatings; the UV resin prepared by the invention has fast curing speed and high crosslinking density , at the same time has excellent adhesion, water resistance, aging resistance, chemical resistance and pollution resistance, but also has the characteristics of high gloss, high wear resistance, high fullness, strong impact resistance and good flexibility, etc., widely used Used in UV floor coatings, UV wood coatings, UV alloy coatings, UV circuit board inks, UV plastic coatings, etc.

Description

technical field [0001] The invention relates to a modified light-curing resin, in particular to a tertiary carbonate-polyurethane modified epoxy acrylate UV resin and a preparation method thereof, belonging to the technical field of synthetic resins. Background technique [0002] In recent years, environmentally friendly coatings, including high-solid and solvent-free coatings, water-based coatings, powder coatings and light-curing coatings, have achieved rapid development. UV curing has the advantages of fast reaction, room temperature operation, low energy consumption, no solvent and less pollution. Light curing technology has been widely used in printing, packaging, advertising, building materials, decoration, electronics, communications, computers, home Shop, automobile, aviation, aerospace, instrumentation, sports, health and many other industries. [0003] Epoxy resin is widely used due to its excellent adhesion, heat resistance, low curing shrinkage, good manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/67C08G18/83C09D175/16C09D11/101
CPCC08G18/672C08G18/6705C08G18/831C09D175/16C09D11/101
Inventor 陆明许钧强匡民明
Owner 英德科迪颜料技术有限公司