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2-functionality-degree makrolon urethane acrylate and preparation method and application thereof

A technology of urethane acrylate and isocyanate ethyl acrylate, applied in the field of materials, can solve the problems of difficult control of the production process, many steps in the reaction process, cumbersome and other problems, and achieve the effects of easy control, reduction of reaction steps and low viscosity

Inactive Publication Date: 2016-08-17
JIANGSU LITIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of diisocyanate and hydroxyethyl acrylate or hydroxypropyl acrylate to prepare trifunctional polyurethane acrylate, the reaction process has many steps and is relatively cumbersome, and the production process is not easy to control, and the risk of gelation may occur due to the existence of side reactions

Method used

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  • 2-functionality-degree makrolon urethane acrylate and preparation method and application thereof
  • 2-functionality-degree makrolon urethane acrylate and preparation method and application thereof
  • 2-functionality-degree makrolon urethane acrylate and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In a 1000mL four-necked flask, 500 grams of polycarbonate diol (UBE Ube Industrial Co., Ltd. UH-50, molecular weight 500), 282 grams (2mol) of isocyanate ethyl acrylate, 0.09 grams of catalyst dibutyltin dilaurate, and polymerization inhibition Add 0.9 g of p-hydroxyanisole, slowly heat up to 80°C-85°C for 0.5-4 hours, heat-retain and react for 3-5 hours, and then discharge the material to obtain a bifunctional polycarbonate urethane acrylate with the structure shown in the following formula.

[0037]

[0038] R is: -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -, that is, the diol monomer in the polycarbonate diol is 1,6-hexanediol;

[0039] n=(500-118) / 144=2.6528.

Embodiment 2

[0041] In a 1000mL four-necked flask, 500 grams of polycarbonate diol (UBE Ube Industrial Co., Ltd. UH-100, molecular weight 1000), 141 grams of isocyanate ethyl acrylate (1mol), 0.1 gram of dibutyltin dilaurate as a catalyst, and polymerization inhibition Add 0.7 g of p-hydroxyanisole, slowly heat up to 80°C-85°C for 0.5-4 hours, heat-retain and react for 3-5 hours, and then discharge the material to obtain a bifunctional polycarbonate urethane acrylate with the structure shown in the following formula.

[0042]

[0043] R is: -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -, that is, the diol monomer in the polycarbonate diol is 1,6-hexanediol;

[0044] n=(1000-118) / 144=6.1250.

Embodiment 3

[0046] In a 1000mL four-necked flask, 500 grams of polycarbonate diol (UBE Ube Industrial Co., Ltd. UH-200, molecular weight 2000), 70.5 grams of isocyanate ethyl acrylate (0.5mol), 0.1 gram of dibutyltin dilaurate as a catalyst, and Polymerizing agent p-hydroxyanisole 0.6 g, slowly heating up to 80°C-85°C for 0.5-4 hours, heat-retaining reaction for 3-5 hours, and then discharging to prepare bifunctional polycarbonate urethane acrylate with the structure shown in the following formula.

[0047]

[0048] R is: -CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 -, that is, the diol monomer in the polycarbonate diol is 1,6-hexanediol;

[0049] n=(2000-118) / 144=13.0694.

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Abstract

The invention discloses low-viscosity 2-functionality-degree makrolon urethane acrylate and a preparation method and application thereof. The preparation method of low-viscosity 2-functionality-degree makrolonurethane acrylate comprises the following step that polycarbonate diol and isocyanatoethyl prop-2-enoate react to obtain 2-functionality-degree makrolon urethane acrylate. The invention further discloses application of 2-functionality-degree makrolon urethane acrylate to preparation of a UV coating or ink or an adhesive. Makrolon urethane acrylate is prepared from isocyanatoethyl prop-2-enoate, the reaction process is simple and easy to control, gel is not prone to be generated through side reactions, the product viscosity is low, construction and application of UV formula products are benefited, and when 2-functionality-degree makrolon urethane acrylate is used for UV spraying, no solvent or few solvent is added, and the requirement for 2-functionality-degree makrolon urethane acrylate used for the low-viscosity coating is met. After 2-functionality-degree UV photocuring makrolon urethane acrylate is cured, excellent mechanical performance, hydrolysis resistance, thermal stability, weather fastness, durability, drug resistance and solvent resistance are achieved, and 2-functionality-degree makrolon urethane can be used as a raw material of the UV coating, the ink and the adhesive.

Description

technical field [0001] The invention belongs to the field of materials, and relates to a 2-functionality polycarbonate urethane acrylate and its preparation method and application, in particular to a low-viscosity 2-functionality polycarbonate urethane acrylate and its preparation method and application. Background technique [0002] With the rapid development of science and technology and the strict restrictions on solvents in environmental protection regulations, UV light-curable polymer materials have attracted more and more attention. UV light-curing materials have excellent properties such as fast curing, low energy consumption, less pollution, and high efficiency, so they are widely used in coatings, printing, and electronics industries, and have developed rapidly in recent years. Polyurethane acrylate (PUA) is an important light-curable oligomer, which has excellent properties such as low irritation, fast curing speed, high transparency, tensile resistance, and high c...

Claims

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Application Information

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IPC IPC(8): C07C269/02C07C271/16C08G18/71C08G18/44C08G64/42C09D4/02
CPCC07C269/02C08G18/44C08G18/711C08G64/42C09D4/00C07C271/16C08F222/104C08F222/102
Inventor 胡剑飞
Owner JIANGSU LITIAN TECH