Alcohol soluble polyacrylate resin and preparation method and application thereof

A polyacrylate and acrylate technology, which is applied to alcohol-soluble polyacrylate resin and its preparation and application fields, can solve problems such as poor mechanical properties of alcohol-soluble polyamide resin, and achieve good mechanical properties, excellent water resistance, and excellent bottom. The effect of material adhesion

Inactive Publication Date: 2009-12-30
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alcohol-soluble polyamide resin has poor mechanical properties, which limits its application occasions, and is generally only used as ink resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In the first step, 45 grams of ethanol was added to the reactor equipped with a stirrer, a reflux condensing device, a heating mantle and a nitrogen blanket, and then the system was heated to 120° C. and stirred for 30 minutes at 500 rpm.

[0045] In the second step, 19.5 grams of methyl methacrylate, 12 grams of n-propyl acrylate, 7.5 grams of hydroxypropyl methacrylate and 0.3 grams of benzoyl peroxide were mixed together, and then added dropwise to the reaction kettle for 1 hour. Finished dripping inside. After 4 hours of reaction, 1.5 g of γ-(methacryloyloxy)propyltrimethoxysilane was added dropwise, and the reaction was continued for 1.5 hours, and the material was discharged.

[0046] The prepared alcohol-soluble polyacrylate resin is environmentally friendly, has no irritating odor, and is stable in storage. After testing, the alcohol-soluble polyacrylate resin has a number-average molecular weight of 52,000, a molecular weight distribution of 2.2, and a Brookfi...

Embodiment 2

[0048] The first step is to get 300 grams of isobutanol and add it to the reactor equipped with a stirrer, a reflux condensing device, a heating mantle and a nitrogen blanket, then the system is heated to 85° C. and stirred for 25 minutes at 500 rpm.

[0049] In the second step, 66 grams of styrene, 58 grams of ethyl acrylate, 24 grams of acrylic acid and 1.2 grams of azobisisobutyronitrile were mixed together, and then added dropwise into the reaction kettle, and the dripping was completed within 1.5 hours. After 4 hours of reaction, 18 g of vinyltris(β-methoxyethoxy)silane was added dropwise. The reaction was continued for 2 hours, and the material was discharged.

[0050] The prepared alcohol-soluble polyacrylate resin is environmentally friendly, has no irritating odor, and is stable in storage. After testing, the resin has a number-average molecular weight of 83100, a molecular weight distribution of 2.5, and a Brookfield viscosity of the resin system of 2200cp.

Embodiment 3

[0052] The first step is to get 240 grams of isopropanol and add it to the reactor equipped with a stirrer, a reflux condensing device, a heating mantle and a nitrogen blanket, and then the system is heated to 90° C. and stirred for 30 minutes at 500 rpm.

[0053] In the second step, 60 grams of ethyl methacrylate, 32 grams of n-propyl methacrylate, 23 grams of hydroxyacrylic acid and 0.8 grams of di-tert-amyl peroxide were mixed together, and then added dropwise into the reaction kettle, within 2 hours Finished dripping. After 4 hours of reaction, 10.4 g of vinyltriethoxysilane was added dropwise. The reaction was continued for 1.5 hours, and the material was discharged.

[0054] The prepared alcohol-soluble polyacrylate resin is environmentally friendly, has no irritating odor, and is stable in storage. After testing, the resin has a number-average molecular weight of 42,500, a molecular weight distribution of 4.1, and a Brookfield viscosity of the resin system of 2,500cp....

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Abstract

The invention discloses an alcohol soluble polyacrylate resin and a preparation method and an application thereof; the preparation method comprises the following steps: taking 260-800 parts of alcohols solvent, adding the solvent in a reaction kettle with a mixer, a reflux condenser, a heating jacket and a nitrogen covering layer, then heating the system to 70-150 DEG C, mixing the mixture for 10-30min; adding acrylic ester used as hard monomers, acrylic ester used as soft monomers, polar functional group monomers, organosilane monomers and initiator to react for 4-7h and obtain alcohol soluble polyacrylate resin. The alcohol soluble polyacrylate resin prepared by the method of the invention has no excitant odour, the number-average molar mass is 10,000-200,000, the molecular weight distribution is 1.1-4 and the Brookfield viscosity of the resin system is 100-5000cp. The coating which is prepared by mixing the resin with other pigments, fillers and assistants can be applied in glass, aluminium coil and polypropylene plastic for surface decoration and protective function.

Description

technical field [0001] The invention relates to an alcohol-soluble polyacrylate resin, a preparation method and application thereof, and the resin can be used as the main constituent resin of environment-friendly paint or environment-friendly ink. Background technique [0002] The emission of volatile organic compounds (VOCs) from traditional solvent-based coatings has a great effect on the ecological environment of the earth, and at the same time, human health is also greatly threatened. Therefore, the development of green and environmentally friendly coatings has become an important direction for the development of today's coatings industry. At present, there are new environmentally friendly coating products such as water-based coatings, powder coatings, UV-curable coatings, and high-solid coatings on the market. Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modifications, in addition to water-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F230/08C08F212/08C08F220/18C08F220/44C08F220/56C09D133/12C09D125/14C09D133/06C09D133/20C09D133/26C09D5/00C03C17/32C09D11/10C09D11/30
Inventor 皮丕辉陈泽成唐富龙文秀芳郑大锋程江杨卓如
Owner SOUTH CHINA UNIV OF TECH
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