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Thick-coating, high-filling water-based one-component transparent primer and preparation method thereof

A transparent primer and filling technology, applied in primers, coatings, polyurea/polyurethane coatings, etc., can solve the problems of restricting the efficiency of water-based paints, water-based paints cannot be thickly coated, etc., to improve applicability and reduce performance , improve the effect of activity

Active Publication Date: 2021-11-02
河南立邦长润发科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the reason why the water-based paint cannot be thickly coated is the air bubbles. The air bubbles in the water-based paint greatly restrict the efficiency of the water-based paint in practical applications, so it is necessary to select the type of defoamer

Method used

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  • Thick-coating, high-filling water-based one-component transparent primer and preparation method thereof
  • Thick-coating, high-filling water-based one-component transparent primer and preparation method thereof
  • Thick-coating, high-filling water-based one-component transparent primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Thick-coating, high-filling water-based one-component transparent primer, by weight components, contains the following components: 55 parts of water-based acrylic emulsion, 30 parts of water-based polyurethane emulsion, 1.2 parts of defoamer, 5 parts of coalescent 5.3 parts of deionized water, 0.5 parts of thickener, 3 parts of grinding aid.

[0046] Among them, the water-based acrylic emulsion is Lacper-4502, the water-based polyurethane emulsion is NeoRez R-2180, the defoamer is BYK-022 and Airex-901W mixed at a weight ratio of 1:0.2, the film-forming aid is DPNB, and the thickener is RM-8W, the grinding aid is Hanwei HS2000.

[0047] The preparation method of the above-mentioned thick-coated, high-filling water-based one-component transparent primer comprises the following steps:

[0048]Step (1) Add defoamer, film-forming aid, deionized water, and thickener into the dispersing tank, turn on the dispersing machine and disperse at 200r / min for 5 minutes, pour it out ...

Embodiment 2-5

[0053] The water-based one-component transparent primer that can be thickly coated and highly filled is different from Example 1 in the ratio of water-based acrylic emulsion and water-based polyurethane emulsion, as shown in Table 1.

[0054] The components of the parts by weight of embodiments 2-5 in the water-based one-component transparent primer that can be thickly coated and highly filling in table 1

[0055]

[0056]

Embodiment 6-21

[0058] The thick-coating, high-filling water-based one-component transparent primer is different from Example 4 in the type of defoamer and the proportion of parts by weight, as described in Table 2.

[0059] The defoamer type and weight ratio of embodiment 6-21 in the thick-coated, high-filling water-based one-component transparent primer in table 2

[0060]

[0061]

[0062]

[0063]

[0064]

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Abstract

The application relates to the technical field of chemical coatings, and specifically discloses a thick-coating, high-filling water-based one-component transparent primer and a preparation method thereof. Thick-coating, high-filling water-based one-component transparent primer contains the following raw materials by weight: 50-80 parts of water-based acrylic emulsion; 10-30 parts of water-based polyurethane emulsion; 0.5-1.5 parts of defoamer; film-forming 1-10 parts of auxiliary agent; 1-10 parts of deionized water; 0.1-0.5 parts of thickener; 1-5 parts of grinding aid; Ionized water and thickener are pre-mixed for later use; (2) Disperse water-based acrylic emulsion and water-based polyurethane emulsion; (3) Add the pre-mixed materials in (1) to (2) for dispersion; (4) Disperse the grinding aid Agent and deionized water are added to (3) to continue the dispersion, and it is enough to pass the test. The primer of the present application can be used for the thick coating process on the base material in the transparent full-sealing process, which has the advantage of dispelling the bubbles of the paint layer during the thick coating process.

Description

technical field [0001] The application relates to the technical field of chemical coatings, more specifically, it relates to a thick-coating, high-filling water-based one-component transparent primer and a preparation method thereof. Background technique [0002] The furniture products with transparent and fully enclosed technology have a very high market share. The advantages are that the product finish is more beautiful, the paint surface is easy to maintain, and it has good durability, and it is not easy to change color and pollution. [0003] The transparent and fully enclosed process of some furniture factories uses a single-component transparent primer for coating. When the base material of some deep conduits is applied with a normal coating amount, it needs to be filled 4-5 times before it can be filled, resulting in low production efficiency and poor production. The cost is too high. However, when the amount of coating is too large, dark bubbles and prickly heat are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/04C09D5/00C09D7/63C09D7/40
CPCC08L2201/10C09D5/002C09D133/04C09D7/40C09D7/63C08L75/04C08K5/098
Inventor 王晨
Owner 河南立邦长润发科技材料有限公司