Water-based anti-graffiti resin and preparation method thereof, water-based anti-graffiti coating and preparation method thereof

An anti-graffiti resin and anti-graffiti technology, applied in the field of coatings, can solve the problems of few water-based anti-graffiti coatings, difficult construction, short open period, etc., achieve good anti-graffiti effect, recoatability, and long open period Effect

Active Publication Date: 2021-06-29
安徽嘉宝莉科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although two-component water-based coatings have better resistance and better anti-graffiti effect than one-component water-based coatings, due to the disadvantages of two-component coatings such as difficulty in construction, short opening period, and certain toxicity, it is limited its large-scale application
[0005] In fact, in the existing technical solutions, water-based anti-graffiti coatings are basically obtained by adding components that reduce surface energy, and few of them obtain water-based anti-graffiti coatings from the perspective of resin raw materials and resin preparation.

Method used

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  • Water-based anti-graffiti resin and preparation method thereof, water-based anti-graffiti coating and preparation method thereof
  • Water-based anti-graffiti resin and preparation method thereof, water-based anti-graffiti coating and preparation method thereof
  • Water-based anti-graffiti resin and preparation method thereof, water-based anti-graffiti coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The preparation of embodiment 1 polyester

[0048] (1) Add 400g of adipic acid, 100g of terephthalic acid, 200g of 1,2-propanediol and 180g of 2-butyl-2-ethyl-1,3-propanediol in a reactor with a reflux condensing device. Under nitrogen atmosphere, the temperature was raised from room temperature to 120°C at a rate of 10°C / min, kept for 1.5 hours, then raised to 150°C at a rate of 5°C / min, kept for 1.5 hours, and finally raised to 180°C at a rate of 5°C / min , keep warm for 0.75 hours;

[0049] (2) Add catalyst tetraisopropyl titanate of 0.04% of the total mass of reactants into the reactor, and raise the temperature to 240°C at a rate of 10°C / 20min, reduce the pressure of the kettle to below 0.1MPa, and conduct the reaction at low pressure for 2 Hours, the polyester is obtained after discharging, the hydroxyl value of the product is measured to be 57±3mgKOH / g, and the molecular weight is 2000±100g / mol.

Embodiment 2

[0050] The preparation of embodiment 2 polyester

[0051] (1) Add 325g of succinic acid, 90g of phthalic anhydride, 237g of 1,4-butanediol and 164g of 2-n-pentylpropane-1,3-diol in a reactor with a reflux condensing device. Raise the temperature from room temperature to 120°C at a rate of 10°C / min, hold for 1.5 hours, then raise the temperature to 150°C at a rate of 5°C / min, hold for 1.5 hours, and finally raise the temperature to 180°C at a rate of 5°C / min, and hold for 0.75 hours ;

[0052] (2) Add the catalyst tetrabutyl titanate of 0.05% of the total mass of the reactants into the reaction kettle, and raise the temperature to 240°C at a rate of 10°C / 20min, reduce the pressure of the kettle to below 0.1MPa, and keep the reaction under low pressure for 3 hours. After discharging, the polyester is obtained. The measured hydroxyl value of the product is 57±3mgKOH / g, and the molecular weight is 2000±100g / mol.

Embodiment 3

[0053] The preparation of embodiment 3 polyester

[0054] (1) Add 400g of adipic acid, 100g of isophthalic acid, 200g of n-hexanediol and 150g of 2-butyl-2-ethyl-1,3-propanediol, neopentyl di Alcohol 115g, in a nitrogen atmosphere, the temperature was raised from room temperature to 120°C at a rate of 10°C / min, kept for 1.5 hours, then raised to 150°C at a rate of 5°C / min, kept for 1.5 hours, and finally heated at a rate of 5°C / min Raise the temperature to 180°C and keep it warm for 0.75 hours;

[0055] (2) Add the catalyst tetrabutyl titanate of 0.03% of the total mass of reactants into the reactor, and raise the temperature to 240°C at a rate of 10°C / 20min, reduce the pressure of the kettle to below 0.1MPa, and keep the reaction under low pressure for 2 hours. After discharging, the polyester is obtained. The measured hydroxyl value of the product is 57±3mgKOH / g, and the molecular weight is 2000±100g / mol.

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Abstract

The invention belongs to the technical field of coatings, and in particular relates to a water-based anti-graffiti resin and a preparation method thereof, and a water-based anti-graffiti paint and a preparation method thereof. The water-based anti-graffiti coating of the present invention comprises the following components by weight: 70-85 parts of water-based anti-graffiti resin, 0.2-2 parts of thickener, 0.1-0.3 part of leveling agent, 0.1-0.5 part of defoamer, 1-6 parts of coalescent, 0.3-0.5 parts of wetting agent, 0.05-0.1 part of anti-virus and bactericide, 0-5 parts of cross-linking agent. The water-based anti-graffiti paint not only has good anti-graffiti effect, but also makes the prepared coating film have good water-based pen spreadability and recoatability. In addition, the water-based anti-graffiti paint of the present invention does not add isocyanate curing agent, has a long open period, is non-toxic, has low odor, and conforms to the concept of green environmental protection.

Description

technical field [0001] The invention belongs to the technical field of paint, and in particular relates to a water-based anti-graffiti resin and a preparation method thereof, and a water-based anti-graffiti paint and a preparation method thereof. Background technique [0002] Since the beginning of the 21st century, under the social background that all human beings pay more and more attention to the quality of life and health, products that conform to the concept of green environmental protection and sustainable development have been unanimously sought after by the public. The large-scale application of whiteboards that can be wiped repeatedly has undoubtedly reduced people's consumption of paper, and the replacement of traditional oil-based pens by water-based pens has become a major trend of green environmental protection. In recent years, domestic great progress in the field of low-VOC coatings has greatly promoted the green development of the coatings field. Among them, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/34C08G18/32C08G18/12C09D175/06
CPCC08G18/0823C08G18/12C08G18/348C08G18/4211C08G18/4213C08G18/6659C09D175/06C08G18/3206
Inventor 汪金黄嵘锋马汉峰张浩叶彩平李晓敏
Owner 安徽嘉宝莉科技材料有限公司
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