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Electron beam curing high-flexibility modified polyurethane acrylate and preparation method thereof

A urethane acrylate and electron beam curing technology, which is applied in the field of ink, can solve the problems that urethane acrylate is difficult to directly apply electron beam curing ink, and urethane acrylate cannot achieve the expected effect.

Active Publication Date: 2017-10-10
CHUZHOU JINQIAO TEXAS NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In some specific UV inks, in order to achieve a certain performance, polyurethane acrylate is used as an important component of this type of ink. There are also related reports in the prior art. However, due to the difference between electron beam curing and UV curing, this type of polyurethane acrylate It is difficult to be directly applied to electron beam curing ink, or this type of urethane acrylate cannot play the expected effect in electron beam curing ink

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 20g of polyethylene glycol with a number average molecular weight of 300, 20g of 4,4-diphenylmethane diisocyanate, 3g of sorbitol into the reactor, add 0.3g of stannous octoate, react at 85°C for 40min, add 3g of cyclo Hexanone oxime, reacted for 40min, then added 15g of hydroxyethyl methacrylate, then lowered the temperature to 50°C and reacted for 1.5h to obtain a polyurethane macromer;

[0025] Weigh 70 g of fatty alcohol polyoxyethylene ether methacrylate, 16 g of chloro-1-aminopropyl-3-(α-methylacrylate) imidazole, 7 g of polyurethane macromer, and 0.5 g of azobisisobutyronitrile g, 0.5 g of dibenzoyl peroxide were mixed uniformly to prepare solution A;

[0026] Add 40g of isopropanol, 40g of polyethylene glycol monomethyl ether, 1 / 2 of solution A in the reactor, raise the temperature to 75°C for 30 minutes, add the rest of solution A dropwise through the dropping funnel, react for 3 hours, then cool down to At 55°C, add triethylamine to neutralize to a pH val...

Embodiment 2

[0028] Add 45g of polyethylene glycol with a number average molecular weight of 300, 46g of 4,4-diphenylmethane diisocyanate, and 6.5g of sorbitol into the reactor, add 0.7g of stannous octoate, react at 85°C for 40min, and add 7g Cyclohexanone oxime was reacted for 40 minutes, then 32 g of hydroxyethyl methacrylate was added, and the temperature was lowered to 50°C for 1.5 hours to prepare a polyurethane macromer;

[0029] Weigh 68 g of fatty alcohol polyoxyethylene ether methacrylate, 17 g of chloro-1-aminopropyl-3-(α-methyl acrylate) imidazole, 6 g of polyurethane macromonomer, and 0.5 g of azobisisobutyronitrile g, 0.5 g of dibenzoyl peroxide were mixed uniformly to prepare solution A;

[0030] Add 40g of dipentaerythritol, 40g of polyethylene glycol monomethyl ether, 1 / 2 solution A in the reactor, raise the temperature to 75°C for 30 minutes, add the rest of solution A dropwise through the dropping funnel, react for 3 hours, then cool down to 55°C °C, add triethylamine t...

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PUM

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Abstract

The invention discloses electron beam curing high-flexibility modified polyurethane acrylate and a preparation method thereof. The preparation method includes the steps: synthesizing polyurethane macro-monomer taking polyethylene glycol as a soft segment and taking sorbitol as a chain extender; mixing the polyurethane macro-monomer with alkyl polyethyleneoxide ether methacrylate, chloro-1-aminopropyl-3-(alpha-methoxycarbonyl acrylate) imidazole and initiators to obtain solution A; mixing the solution A with solvents, performing reaction at the temperature of 70-80 DEG C, neutralizing mixture after reaction by alkali, adding deionized water and stirring the mixture to obtain polyurethane-acrylate emulsion. The polyurethane acrylate can be applied to the field of preparation of electron beam curing ink or adhesives, and a high-quality, high-flexibility and chemical-resistant electron beam curing ink coating can be obtained.

Description

technical field [0001] The invention belongs to the field of ink, and in particular relates to an electron beam cured highly flexible modified polyurethane acrylate and a preparation method thereof. Background technique [0002] Inks cured by electron beam energy are called electron beam curable inks (ie EB inks). In the drying of the ink film layer after printing with ordinary ink, the linking material in the ink is generally absorbed and volatilized by the substrate, while the solid matter remains on the surface of the substrate to form a thin ink layer. Electron beam curing is a process of using electron beams as irradiation energy, performing radiation chemical reactions with active liquid chemical formulas, and rapidly drying and curing at room temperature. [0003] The resins (prepolymers) and monomers used in both electron beam curing and light curing are similar, so the polymerization process and products also have certain similarities and comparability. However, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F299/06C08F299/02C08G18/67C08G18/66C08G18/48C08G18/32C09D11/101
CPCC08F299/026C08F299/065C08G18/3206C08G18/4825C08G18/672C09D11/101C08G18/6677
Inventor 王景泉
Owner CHUZHOU JINQIAO TEXAS NEW MATERIALS CO LTD
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