Self-leveling aqueous fluorine-containing urethane acrylic resin, preparation method thereof and aqueous photocurable coating

A polyurethane acrylic, self-leveling technology, applied in the field of coatings, can solve the problems of poor water resistance, high surface tension, poor leveling, etc., and achieve the effects of excellent interlayer adhesion, improved heat resistance, and improved self-leveling.

Active Publication Date: 2019-02-01
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, water-based light coatings also have the following disadvantages: high evaporation heat of water (40.6kJ/mol), high energy consumption when drying and removing water; high surface tension of water (72.8mN/m), substrate wetness Poor wetness, poor leveling; low gloss of cured film, poor water resistance; poor storage stability, more sensitive to pH

Method used

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  • Self-leveling aqueous fluorine-containing urethane acrylic resin, preparation method thereof and aqueous photocurable coating
  • Self-leveling aqueous fluorine-containing urethane acrylic resin, preparation method thereof and aqueous photocurable coating
  • Self-leveling aqueous fluorine-containing urethane acrylic resin, preparation method thereof and aqueous photocurable coating

Examples

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Effect test

Embodiment 1

[0053] The self-leveling water-based fluorine-containing polyurethane acrylic resin of this embodiment is made of the following raw materials in mass percentage: Bayer N3300 15%, monohydroxy acrylate 11%, perfluoropolyether glycol (molecular weight Mn is 1300) 7%, trimethylol propane 2%, dimethylol propionic acid 5%, triethylamine 2 %, deionized water 52%, acetone 5%, dibutyltin dilaurate 0.02%, p-hydroxyanisole 0.98%; the above-mentioned monohydroxy acrylate substances are pentaerythritol triacrylate, hydroxyethyl methacrylate, hydroxy acrylate A mixture of propyl esters in a mass ratio of 2:5:3.

[0054] The preparation method of the self-leveling water-based fluorine-containing polyurethane acrylic resin of the present embodiment may further comprise the steps:

[0055] 1) Add to the reaction vessel Stir N3300 and p-hydroxyanisole at a stirring speed of 200r / min, raise the temperature to 50°C, slowly add monohydroxy acrylates and one-third of the mass of acetone dropwis...

Embodiment 2

[0060] The self-leveling water-based fluorine-containing polyurethane acrylic resin of this embodiment is made of the following raw materials in mass percentage: Mitsui Chemicals D-370N 20%, monohydroxy acrylate 18%, perfluoropolyether diol (molecular weight Mn is 1700) 5%, trimethylolpropane 1%, dimethylol propionic acid 4%, dimethylol Ethanolamine 2%, deionized water 44%, acetone 5%, dibutyltin dilaurate 0.05%, hydroquinone 0.95%; the above-mentioned monohydroxy acrylates are pentaerythritol triacrylate, hydroxyethyl acrylate, FA2D according to 3:3:4 mass ratio mixed mixture.

[0061] The preparation method of the self-leveling water-based fluorine-containing polyurethane acrylic resin of the present embodiment may further comprise the steps:

[0062] 1) Add Mitsui Chemicals’ Stir D-370N and hydroquinone at a stirring speed of 180r / min, heat up to 45°C, slowly add monohydroxy acrylate substances and one-third of the mass of acetone dropwise, complete the dropwise additio...

Embodiment 3

[0067] The self-leveling water-based fluorine-containing polyurethane acrylic resin of the present embodiment is made of the following raw materials in mass percentage: 11% of trimer polyisocyanate, 20% of monohydroxy acrylate, perfluoropolyether glycol (molecular weight Mn is 1500) 4%, trimethylolpropane 2%, dimethylolpropionic acid 5%, triethanolamine 2%, deionized water 49%, acetone 6%, stannous octoate 0.08%, p-hydroxyanisole 0.92% ; The above trimer polyisocyanate is Rhodia HDT-100 with Bayer N7300 is a mixture mixed in a mass ratio of 1:1; the above-mentioned monohydroxy acrylate is a mixture of hydroxyethyl methacrylate, hydroxypropyl acrylate, and FA1DDM in a mass ratio of 4:4:2.

[0068] The preparation method of the self-leveling water-based fluorine-containing polyurethane acrylic resin of the present embodiment may further comprise the steps:

[0069] 1) Add trimer polyisocyanate and p-hydroxyanisole into the reaction vessel, stir at a stirring speed of 200r / mi...

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Abstract

The invention relates to a self-leveling aqueous fluorine-containing urethane acrylic resin, a preparation method thereof and an aqueous photocurable coating, and belongs to the field of coatings. Theself-leveling aqueous fluorine-containing urethane acrylate resin of the invention is prepared from the following raw materials in mass percentage: 10-20% of trimer polyisocyanate, 10-25% of monohydroxy acrylates, 2-10% of perfluoropolyether glycol, 1-2% of trimethylolpropane, 2-6% of dimethylolpropionic acid, 1-3% of neutralized amine, 40-60% of water, 4-7% of acetone, 0.01-0.1% of a catalyst, and 0.1-1% of a polymerization inhibitor. The leveling aqueous fluorine-containing urethane acrylic resin of the invention has excellent water dispersibility, good stability, milky white appearance with blue light, high resin solid content and moderate viscosity; and the obtained photocurable coating has good stability, strong impact resistance, and good application prospects.

Description

technical field [0001] The invention relates to a self-leveling water-based fluorine-containing polyurethane acrylic resin, a preparation method thereof, and a water-based light-curing coating, belonging to the field of coatings. Background technique [0002] With the development of science and technology and the progress of society, people have begun to realize the importance of environmental protection. For solvent-based coatings, the volatilization of a large amount of organic compounds not only causes ecological damage, but also has a serious impact on human health. Therefore, the development of environmentally friendly coatings such as water-based coatings and UV-curable coatings is more and more suitable for market demand. [0003] Traditional light-curing coatings will add a certain amount of inert solvents in some applications to reduce the viscosity of the system. This is due to the high viscosity of the main resin, diluting with active monomers will cause strong v...

Claims

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Application Information

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IPC IPC(8): C08G18/50C08G18/32C08G18/34C08G18/67C08G18/73C08G18/79C08G18/66C09D175/14
CPCC08G18/3206C08G18/348C08G18/5015C08G18/672C08G18/673C08G18/73C08G18/792C09D175/14C08G18/0823C08G18/6692
Inventor 营飞顾斌王木立朱东马智俊张东阳
Owner CHINA NAT OFFSHORE OIL CORP
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