Water-based two-component seal white primer and preparation method thereof

A water-based two-component, white primer technology, applied in the field of coatings, can solve the problems of insufficient compactness of the paint film, affecting product quality, and slow drying time, so as to save the amount of curing agent, reduce the number of constructions, and fast drying time. Effect

Inactive Publication Date: 2019-02-22
南宁科天环保节能科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the two-component white primer is relatively high, and the drying time is slow. The addition of pigments and fillers in the white primer leads to insufficient compactness of the paint film. It is easy to turn yellow after a period of time after a white primer, which will affect the quality of the whole product

Method used

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  • Water-based two-component seal white primer and preparation method thereof
  • Water-based two-component seal white primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of a water-based two-component sealed white primer, comprising the following steps: 1) 6.5g of water is added to the reactor, the reactor is opened, the reactor speed is controlled at 300r / min, and 0.1g of pH Conditioner (model AMP-95), 0.3g defoamer (model CF698), 0.1g defoamer (model 902W), 0.8g dispersant (model OROTAN quick and easy), 0.6g dispersant (model LCN407) and 1g Propylene glycol, then slowly add 10g 1250 mesh heavy calcium, 10g 1250 mesh talcum powder and 12g titanium dioxide (model SR237), then increase the rotating speed to 1200r / min, disperse evenly, and obtain a preliminary slurry;

[0037] 2) Add 53.4g of hydroxyacrylic resin into the cylinder, stir, and slowly add the preliminary slurry obtained in step 1) into the cylinder; then slowly add 3g of film-forming aid (model DPM), 0.8g of wetting agent (model 04B ), 0.2g wetting and leveling agent (D-504) and 0.2g fungicide and antifungal agent (CI-15HS), and finally add 0.5g thickene...

Embodiment 2

[0041] A preparation method of a water-based two-component sealed white primer, comprising the following steps: 1) 7g of water is added to the reactor, the reactor is opened, the reactor speed is controlled at 300r / min, and 0.2g of pH is adjusted slowly in turn. agent (model AMP-95), 0.5g defoamer (model CF698), 1g dispersant (model OROTAN quick and easy) and 2g propylene glycol, then slowly add 12g 1250 mesh heavy calcium, 10g 1250 mesh talcum powder and 10g titanium dioxide (model SR237), then the rotating speed is increased to 1200r / min, dispersed evenly, and the preparation slurry is obtained;

[0042]2) Add 53.6g of hydroxyacrylic resin into the tank, stir, and slowly add the prepared slurry obtained in step 1) into the tank; then slowly add 2g of film-forming aid (model DPM), 0.4g of wetting agent (model 04B ), 0.4g wetting and leveling agent (D-504) and 0.1g fungicide and antifungal agent (CI-15HS), and finally add 0.8g thickener (model RM-8W) to obtain component A;

...

Embodiment 3

[0046] A preparation method of a water-based two-component sealed white primer, comprising the following steps: 1) 6g of water is added to a reactor, the reactor is opened, the reactor speed is controlled at 300r / min, and 0.2g of water is slowly added successively to adjust the pH Agent (model AMP-95), 0.5g defoamer (model CF698), 0.3g defoamer (model 902W), 0.4g dispersant (model OROTAN quick and easy), 0.6g dispersant (model LCN407) and 0.5g Propylene glycol, then slowly add 6g 1250 mesh heavy calcium, 8g 1250 mesh talcum powder and 10g titanium dioxide (SR237), then increase the rotating speed to 1200r / min, disperse evenly, and obtain a preliminary slurry;

[0047] 2) Add 58.9g of hydroxyacrylic resin into the tank, stir, and slowly add the prepared slurry obtained in step 1) into the tank; then slowly add 4g of film-forming aid (model DPM), 0.4g of wetting agent (model 04B ), 0.4g wetting and leveling agent (D-504) and 0.1g fungicide and antifungal agent (CI-15HS), and fin...

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Abstract

The invention provides a water-based two-component seal white primer and a preparation method thereof, and relates to the field of paint. The primer comprises a component A and a component B in a weight ratio of 1: (0.1-0.35), wherein the component A is prepared from the following components in parts by weight: 5-10 parts of water, 0.01-1 part of pH regulator, 0.2-1 part of a defoaming agent, 0.6-2 parts of dispersant, 0.5-5 parts of an antifreezing agent, 5-15 parts of ground calcium carbonate, 5-15 parts of talc powder, 10-15 parts of titanium dioxide, 45-60 parts of hydroxy acrylic resin, 1-5 parts of a coalescing agent, 0.5-2 parts of a wetting agent, 0.1-2 parts of a levelling wetting agent, 0.1-2 parts of bactericide and 0.2-2 parts of a thickening agent; and the component B is an isocyanate curing agent. The water-based two-component seal white primer has good paint film compactness, has a seal effect for various base materials, and does not need additional coating of seal primer, and the film does not become yellow. The water-based two-component seal white primer has high film solid content, good filling property, few construction times and high film drying speed, and can be ground after being coated for more than 4 hours at normal temperature, so that the construction efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of coatings, and specifically discloses a water-based two-component sealing white primer and a preparation method thereof. Background technique [0002] At present, when rubber wood, red oak and pine wood are used as closed furniture materials in the market, oil-based paint is often used for finishing. Oil-based paint emits a strong pungent smell during construction, most of which are formaldehyde and benzene volatile substances, which seriously harm the human body. Healthy, water-based paint instead of oil-based paint can avoid the release of organic solvents, and the existing water-based white primer can achieve the effect of paint finishing on ordinary flat solid wood panels. Water-based white primers include one-component and two-component white primers. Most of the one-component white primers are formulated from acrylic resins mixed with pigments and fillers and additives. The resin is used as a film-fo...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D7/63
CPCC08K2003/2241C08K2003/265C09D7/61C09D7/63C09D175/04C08K13/02C08K5/053C08K3/34C08K3/26C08K3/22
Inventor戴家兵陈瑞金荣光郭荣军高雄峰田元兵
Owner南宁科天环保节能科技有限公司