Preparation method for alicyclic epoxy and double bond contained dual-curing resin and application thereof

A dual-curing, dual-curing technology, used in applications, household appliances, adhesive types, etc., can solve the problems of unstable cured film performance, inconsistent polymerization rate, poor comprehensive performance, etc., and achieve good UV cationic curing activity, The effect of improving performance

Inactive Publication Date: 2012-09-19
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are two types of ultraviolet free radical-cation dual curing systems according to the composition of the resin: (1) Acrylate-vinyl ether system, which has been studied a lot in the early stage. The performance is poor and the application value is not high, so this kind of system has been seldom studied at present
(2) Acrylate-epoxy resin sys

Method used

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  • Preparation method for alicyclic epoxy and double bond contained dual-curing resin and application thereof
  • Preparation method for alicyclic epoxy and double bond contained dual-curing resin and application thereof
  • Preparation method for alicyclic epoxy and double bond contained dual-curing resin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1:

[0025] In the first step, add 1 mol of toluene diisocyanate (TDI) into a 500 mL flask, stir, heat to 50°C, and add 0.3% of the total mass of dibutyl dilaurin to 0.5 mol of 1,4-butanediol Tin acid, toluene diisocyanate (TDI) was added dropwise, after 3 hours of reaction, 0.5 mol of hydroxyethyl acrylate (with 0.5% of the total mass dissolved in p-hydroxyanisole) was added, and the temperature was raised to 65°C to continue the reaction for 3 hours; In the second step, add 0.5 mol of glycerol in a 500 mL flask, and add 0.2% of the total mass of dibutyl tin dilaurate, and heat to 60°C to convert the 0.5 mol NCO group-containing polyurethane synthesized in the first step Acrylate segment was slowly added dropwise to glycerol, and reacted for 2.5 hours to obtain prepolymer ①; Step 3: Add 1 mol toluene diisocyanate (TDI) into a 1000 mL flask, and add 0.2% of the total mass of dibutyl Tin dilaurate, heated to 70℃, slowly added the 1mol OH-containing prepolymer ① syn...

Example Embodiment

[0026] Example 2:

[0027] In the first step, add 2 mol of diphenylmethane diisocyanate (MDI) into a 1000 mL flask, stir, heat to 60°C, and add 0.4% dibutyl dilauric acid to 1 mol of polyether glycol. Tin, add methane diisocyanate (MDI) dropwise, after 4 hours of reaction, add 1 mol of hydroxyethyl methacrylate (dissolving 0.6% of the total mass of p-hydroxyanisole), and increase the temperature to 70°C and continue the reaction for 2.5 hours; In the second step, 1 mol of trimethylolpropane was added to a 500 mL flask, and 0.3% of the total mass of dibutyl tin dilaurate was added, heated to 50°C, and the 2 mol NCO group synthesized in the first step Polyurethane acrylate segment is slowly added dropwise to trimethylolpropane and reacted for 4 hours to obtain prepolymer ①; Step 3: Add 1 mol of diphenylmethane diisocyanate (MDI) to a 500mL flask, and add 0.1 % Dibutyl tin dilaurate, heated to 65°C, slowly add the 1mol OH-containing prepolymer ① synthesized in the second step to th...

Example Embodiment

[0028] Example 3:

[0029] In the first step, add 1 mol of hexamethylene diisocyanate (HDI) into a 500 mL flask, stir and heat to 55°C, add 0.5% of the total mass of dibutyl in 0.5 mol of 1,6-hexanediol Tin dilaurate, hexamethylene diisocyanate (HDI) was added dropwise, after 3 hours of reaction, 0.5 mol of hydroxypropyl acrylate (0.8% of the total mass dissolved in p-hydroxyanisole) was added, and the temperature was raised to 65°C Continue the reaction for 3 hours; in the second step, add 0.5 mol of trimethylolpropane into a 500 mL flask, and add 0.1% of the total mass of dibutyl tin dilaurate, heat to 65 ℃, the synthesis of the first step The polyurethane acrylate segment containing 0.5 mol NCO group was slowly added dropwise to trimethylolpropane and reacted for 4 hours to obtain the prepolymer ①; the third step: add 1 mol hexamethylene diisocyanate (HDI) into a 1000 mL flask, Add 0.3% of the total mass of dibutyl tin dilaurate, heat to 60°C, slowly add the 1mol OH-containin...

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Abstract

The invention discloses a preparation method for alicyclic epoxy and double bond contained dual-curing resin and an application thereof. The alicyclic epoxy and double bond contained dual-curing resin comprises acrylate double bonds (ultraviolet free radical curing) and alicyclic epoxy group (ultraviolet cation curing or thermocuring). The resin containing dual curing groups can realize ultraviolet free radical and cation dual curing or ultraviolet and thermal dual curing, curing is quick, cured membranes are high in flexibility, curing volume shrinkage is low, and the resin is high in adhesive force and can be used for dual curing of paint, adhesives and ink.

Description

technical field [0001] The invention belongs to the technical field of organic polymer synthesis, and in particular relates to a molecule containing both ultraviolet light-induced free radical curing groups (acrylate double bonds) and ultraviolet light-induced cationic curing or thermal curing groups (alicyclic epoxy resins). group) resin, and the preparation method of the resin, the resin can be applied to the fields of double ultraviolet curing coatings, adhesives, inks and the like. Background technique [0002] Ultraviolet (UV) curing technology has the advantages of fast curing speed, excellent cured film performance, no solvent release during use, less environmental pollution, low energy consumption during curing, automatic production, and is suitable for use on heat-sensitive substrates. , and has been extensively researched and applied. [0003] According to the mechanism of UV curing, there are mainly two kinds of free radical curing and cationic curing. The chara...

Claims

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Application Information

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IPC IPC(8): C08G18/83C08G18/67C08G18/12C09D175/16C09J175/16C09D11/00
Inventor 刘红波林峰肖望东张武英
Owner SHENZHEN POLYTECHNIC
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