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Waterborne acrylic ester-polyurethane resin emulsion and application thereof

A technology of water-based acrylate and polyurethane resin, which is applied in the field of polymer emulsion, can solve problems that have not been reported, and achieve good performance

Inactive Publication Date: 2010-07-14
常州市弘可利办公用品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic and foreign scientific research institutions and major production companies have invested a lot of manpower and material resources in the research and development of water-based coatings, but there have been no reports on water-based acrylate-polyurethane resin emulsions and water-based coatings for automotive interior parts.

Method used

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  • Waterborne acrylic ester-polyurethane resin emulsion and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 The preparation of aqueous acrylic acid-polyurethane resin emulsion

[0039] Waterborne polyurethane was prepared as follows:

[0040] To the equipment with stirring device, thermometer, N 2 Add 45gPPG, 10gHDO, 5gDMPA to the inlet and condensing reflux four-necked glass flask, vacuum dry and dehydrate at 100°C for 2h, cool down to 80°C, add 12gN-methylpyrrolidone, stir to completely dissolve DMPA, then start to drop 44gTDI Add 0.1g of di-n-butyltin dilaurate to the mixed solution with methyl ethyl ketone (50 / 50), drop it for about 1 hour, continue to stir for 4 hours, cool to 60°C, add 0.01g of hydroquinone, drop 8g of HEA, Add 5g of ethanol, react for 1h, add 6gTEA to neutralize for 0.5h; add 200g of water, disperse at high speed for 0.5h, spin out butanone, and get a translucent water-based polyurethane emulsion (WPU), with a solid content of 30%.

[0041] The core-shell structure waterborne acrylic acid-polyurethane hybrid is prepared as follows:

[0...

Embodiment 2

[0043] Embodiment 2 The preparation of aqueous acrylic acid-polyurethane resin emulsion

[0044] Waterborne polyurethane was prepared as follows:

[0045] To the equipment with stirring device, thermometer, N 2 Add 50gPPG, 15gHDO, 7gDMPA to the entrance and condensing reflux four-neck glass flask, vacuum dry and dehydrate at 100°C for 2h, cool down to 80°C, add 15gN-methylpyrrolidone, stir to dissolve DMPA completely, then start to drop 50gTDI Add 0.15g of di-n-butyltin dilaurate to the mixed solution of butanone (50 / 50), and drop it for about 1 hour. Continue to stir for 4 hours and cool to 60°C. Add 0.01g of hydroquinone and 5g of HEA dropwise. After 20 minutes of dripping, keep warm for 4 hours; add 6g of ethanol, add 4gTEA to neutralize to a pH of about 8 after 1 hour of reaction; add 230g of water, disperse at a high speed for 0.5h, and spin out methyl ethyl ketone to obtain a translucent water-based polyurethane emulsion (WPU). 33%.

[0046] The core-shell structure w...

Embodiment 3

[0048] Embodiment 3 The preparation of aqueous acrylic acid-polyurethane resin emulsion

[0049] Waterborne polyurethane was prepared as follows:

[0050] To the equipment with stirring device, thermometer, N 2 Add 56gPPG, 8gHDO, 5gDMPA to the inlet and condensing reflux four-neck glass flask, vacuum dry and dehydrate at 100°C for 2h, cool down to 80°C, add 15gN-methylpyrrolidone, stir to completely dissolve DMPA, then start to drop 50gTDI Add 0.15g of di-n-butyltin dilaurate to the mixed solution of butanone (50 / 50), drop it for about 1 hour, continue to stir for 4 hours, cool to 60°C, add 0.01g of hydroquinone, drop 8g of HEA, Add 4g of ethanol, react for 1h, add 6gTEA to neutralize for 0.5h; add 250g of water, disperse at a high speed for 0.5h, spin out methyl ethyl ketone, and obtain a translucent water-based polyurethane emulsion (WPU), with a solid content of 35%.

[0051] The core-shell structure waterborne acrylic acid-polyurethane hybrid is prepared as follows:

[...

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Abstract

The invention provides waterborne acrylic ester-polyurethane resin emulsion, which is prepared by the emulsion polymerization of waterborne polyurethane emulsion and an acrylic monomer. The conventional coating contains waterborne dispersion having a single polyurethane(PU) structure or single emulsion of acrylic ester(PA), so the performance of the conventional coating cannot meet the application requirements, but the waterborne acrylic ester-polyurethane resin emulsion of the invention changes the situation. The waterborne acrylic acid-polyurethane resin is good in abrasion resistant and fingerprint resistant properties; the waterborne automobile interior part coating obtained by the resin prepared by the core-shell emulsion polymerization organically combines high abrasion resistance and mechanical properties of the polyurethane and high weathering resistance and water resistance of the acrylic acid, so that the performance of the waterborne automobile interior part coating is improved.

Description

technical field [0001] The invention relates to a polymer emulsion for water-based paint, in particular to a water-based acrylic ester-polyurethane resin emulsion, which is prepared into a water-based paint and used for the coating of automotive interior parts. Background technique [0002] At present, the coating materials for automotive interior parts sold on the market are mainly solvent-based coatings, which have a high content of volatile organic compounds (VOC), and the solvents used are mainly solvents such as hexylene, toluene and butanol. toxicity. The emission of these solvents during the production process will cause environmental pollution, and the residue in the paint film will cause great harm to people's health, especially in a closed environment like a car. With the increasingly stringent requirements for environmental protection in domestic and foreign markets, the application of solvent-based coatings that pollute the environment and endanger the health of...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F2/22C08G18/67C09D151/08
Inventor 闫福安周加祥包柏青杨二霞
Owner 常州市弘可利办公用品有限公司
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