Quick-drying water-based paint

A water-based paint, quick-drying technology, applied in coatings, epoxy resin coatings, polyester coatings, etc., can solve the problems of slow drying speed and inconvenient construction, and achieve the goal of improving drying speed, accelerating drying speed, and accelerating volatilization Effect

Inactive Publication Date: 2020-05-05
浙江博菲电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing water-based paint has the disadvantage of slow drying speed due to the relatively high latent heat of solvent water, which brings great inconvenience to the construction

Method used

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  • Quick-drying water-based paint
  • Quick-drying water-based paint
  • Quick-drying water-based paint

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0075] Preparation of acrylic modified epoxy resin:

[0076] Put 250g of epoxy resin E44 and 100mL of butanol solvent in a reaction vessel, stir and heat up to 80°C, add 3g of catalyst dimethylethanolamine, dropwise add a mixture of acrylic acid and p-methoxyphenol, acrylic acid and p-methoxyphenol In the mixture of base phenol: p-methoxyphenol content 1.5g, acrylic acid 50g, dropwise for about 30min, then raise the temperature to 105°C, measure the acid value at regular intervals until the acid value of the reaction system is lower than 20mgKOH / g , stop the reaction, remove the unreacted substances in vacuum to prepare acrylic modified epoxy resin.

preparation example 2

[0078] Add 200g of epoxy resin E44 into the reactor, raise the temperature to 75°C, add dropwise a mixture of 80g of acrylic acid, 2g of hydroquinone, and 2g of tetrabutylammonium bromide for about 1 hour, then raise the temperature to 95°C , heat preservation reaction for 5h, when the acid value of the reaction system is lower than 5mg / g, lower the reaction temperature, stop the reaction, at this time to obtain a solvent-based acrylic modified epoxy resin EA.

[0079] The acrylic modified epoxy resin EA of this preparation example (EA and the following EB are only for the convenience of distinguishing and narrating, and do not imply additional limitations to the acrylic modified epoxy resin itself), and secondary modification can also be carried out, for example, using cis Butenedioic anhydride is used as the main raw material, supplemented with an appropriate amount of accelerators, etc., and the resulting product can be regarded as "acrylic acid / maleene joint modified epoxy ...

Embodiment 1

[0082] Adopt the acrylic acid modified epoxy resin that preparation example 1 obtains in the present embodiment, mix with other raw materials and obtain quick-drying water-based paint, each raw material comprises:

[0083]

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Abstract

The invention discloses a quick-drying water-based paint which comprises the following raw materials (by mass): 50-80 parts of unsaturated resin or unsaturated resin salt, 0.1-1 part of an initiator,0-2.5 parts of an auxiliary agent, and 200-300 parts of water. The unsaturated resin is selected from one or more of acrylate modified epoxy resin, acrylate modified alkyd resin, modified organic silicon resin, modified polybutadiene resin and acrylic acid / cis-butene combined modified epoxy resin; and the unsaturated resin salt is selected from one or more of acrylate modified epoxy resin salt, acrylate modified alkyd resin salt, modified organic silicon resin salt, modified polybutadiene resin salt and acrylic acid / maleic acid combined modified epoxy resin salt. The quick-drying water-based paint provided by the invention can accelerate the volatilization of water, improve the drying speed and achieve the purpose of quick drying.

Description

technical field [0001] The invention relates to the technical field of water-based paint, in particular to a quick-drying water-based paint. Background technique [0002] Oil-based paint uses various organic solvents such as ketones and benzenes as the dispersion medium, which will volatilize into the air during the production process, damaging the environment or causing harm to the human body. Compared with oil-based paints, water-based paints use water as the medium, which can not only alleviate the consumption of petroleum resources, but also greatly reduce VOC emissions. It has become a research hotspot for various environmentally friendly paints. The existing water-based paint has the disadvantage of slow drying speed due to the high latent heat of solvent water, which brings great inconvenience to the construction. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present application provides a quick-drying water-based paint, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D167/08C09D183/07C09D147/00C09D7/61
CPCC08K2003/2227C08K2003/282C08K2201/003C08K2201/011C09D147/00C09D163/10C09D167/08C09D183/04C09D7/61C08K3/28C08K3/22
Inventor 陆云峰虞希高狄宁宇张飞凌斌
Owner 浙江博菲电气股份有限公司
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