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Transition primer composition

A technology of composition and primer, applied in the direction of primer and coating, can solve the problem of no adhesion, etc., and achieve the effect of moderate film thickness, good adhesion and good bridging effect

Inactive Publication Date: 2019-09-17
中华制漆(新丰)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a kind of transition primer composition, be used between PVC substrate and PU topcoat, aim to solve the technical problem that existing PU topcoat has no adhesion on PVC substrate

Method used

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Examples

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preparation example Construction

[0018] Correspondingly, the embodiment of the present invention also provides the preparation method of above-mentioned transition primer composition, comprises the following steps:

[0019] S01, provide vinyl chloride resin and solvent according to the above formula;

[0020] S02, dissolving the vinyl acetate resin in the solvent to obtain.

[0021] As a preferred embodiment, after step S02, add the defoamer and leveling agent, and continue stirring and mixing until the components are fully mixed.

Embodiment 1

[0024] The present embodiment has prepared a kind of transition primer composition, comprises following weight percentage composition:

[0025]

[0026] Among them, the above-mentioned vinyl resin is selected as A-251 of Lihua Synthetic Resin; the above-mentioned defoamer is selected as BYK-141 of BYK Additives; the above-mentioned leveling agent is selected as BYK-331 of BYK Additives.

[0027] During the preparation, weigh the raw materials according to the above formula, then dissolve the vinyl acetate resin and additives in the solvent, stir and mix well to obtain the product.

[0028] When in use, the transition primer composition is directly sprayed on the PVC substrate with imitation wood grain effect. After about 30 minutes, the solvent is completely evaporated, and then the PU topcoat is continued to be sprayed on the paint film. After drying for 48 hours, Test the adhesion according to the national standard GB / T 9286-1998, and the adhesion can reach level 0 or abo...

Embodiment 2

[0030] The present embodiment has prepared a kind of transition primer composition, comprises following weight percentage composition:

[0031]

[0032]Among them, the above-mentioned vinyl resin is selected as A-251 of Lihua Synthetic Resin; the above-mentioned defoamer is selected as BYK-141 of BYK Additives; the above-mentioned leveling agent is selected as BYK-331 of BYK Additives.

[0033] The preparation method and usage method are basically the same as those in Example 1, and will not be repeated here in order to save space.

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Abstract

The invention belongs to the technical field of paint, and particularly relates to a transition primer composition. The transition primer composition provided by the invention comprises VAC and solvents. Through being metered by 100 percent of the total weight of the primer paint, the VAC accounts for 20 to 25 percent, wherein a paint film formed by the transition primer composition is used as transition primer between a PVC substrate and PU finish paint. The 20 to 25 weight percent of VAC is used as a main film forming substance. On one hand, the VAC and the PVC substrate have good adhesion power; on the other hand, the VAC can be chemically interlinked with the PU finish pint, so that the paint film formed by the transition primer and the PU paint form a whole to a certain degree, so that a good bridging effect is achieved between the PU finish paint and the PVC substrate; the thickness of the paint film is proper; good adhesion power between the PU finish paint and the PVC substrate is further ensured.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a transitional primer composition. Background technique [0002] At present, in addition to the traditional wooden materials, the basic material used to make doors and door frames is also popular a kind of polyvinyl chloride (PVC) thin layer with imitation wood grain effect made by mixing various pigments on the surface. Composite material, although the appearance of this composite material has reduced the manufacturing cost of door and door frame, but the corner that adopts this kind of composite material to make door and door frame is easy to fall off damage, and touch feeling is relatively poor. Some furniture manufacturers try to spray a layer of PU topcoat (polyurethane coating as a topcoat) on the surface of the composite material to improve the touch and prevent the door and frame from falling off and being damaged. However, the vast majority of PU topcoats c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/06
CPCC09D5/002C09D127/06
Inventor 罗瑞芳朱会明周运吉罗成
Owner 中华制漆(新丰)有限公司
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