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A kind of MDF primer

A technology of primer and fiberboard, applied in the field of coatings, can solve the problems of many gaps, sag of paint film, and prolonged working hours, etc.

Active Publication Date: 2018-03-16
珠海展辰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] MDF is widely used, and there are many coatings for MDF coating. A Chinese patent with publication number CN102516847A discloses a transparent primer for MDF, which can avoid the occurrence of tendon swelling, but Due to the soft texture of MDF and many gaps, the paint film is prone to sink when using the above coatings, and it is difficult to fill. The traditional method is to increase the thickness of the paint film through multiple coats to slow down the sinking of the paint film. question
This will result in more processes, longer working hours, lower overall efficiency and benefits, and at the same time cannot effectively solve the problem of paint film sagging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Formula: 42g unsaturated polyester resin, 32g silica powder, 0.2g polymerization inhibitor, 1g carbon black powder, 6g solvent, 0.1g defoamer, 0.1g leveling agent, 0.6g anti-settling agent, 16g talc powder, zinc Powder 2g.

[0070] According to the above formula, first add unsaturated polyester resin and polymerization inhibitor, and disperse at low speed for 5 minutes; then add carbon black powder and disperse at high speed for 30 minutes, until the fineness is less than 50 microns (tested with a scraper fineness meter); Foaming agent and leveling agent dispersed at medium speed for 5 minutes; then add silicon micropowder, talc powder, anti-sedimentation agent, zinc powder and disperse at high speed for 30 minutes until the fineness is less than 50 microns (tested with a scraper fineness meter); finally add Solvent, disperse at medium speed for 5 minutes, and stir evenly to obtain MDF primer. (Note: The temperature of the product should not be higher than 60 degrees, ...

Embodiment 2

[0077] Formula: 45g unsaturated polyester resin, 30g silica powder, 0.2g polymerization inhibitor, 1g carbon black powder, 6g solvent, 0.1g defoamer, 0.1g leveling agent, 0.6g anti-settling agent, 15g talc powder, zinc Powder 2g.

[0078] According to the above formula, first add unsaturated polyester resin and polymerization inhibitor, and disperse at low speed for 5 minutes; then add carbon black powder and disperse at high speed for 30 minutes, until the fineness is less than 50 microns (tested with a scraper fineness meter); Foaming agent and leveling agent dispersed at medium speed for 5 minutes; then add silicon micropowder, talc powder, anti-sedimentation agent, zinc powder and disperse at high speed for 30 minutes until the fineness is less than 50 microns (tested with a scraper fineness meter); finally add Solvent, disperse at medium speed for 5 minutes, and stir evenly to obtain MDF primer. (Note: The temperature of the product should not be higher than 60 degrees, ...

Embodiment 3

[0085] Formula: 50g of unsaturated polyester resin, 28g of silica powder, 0.2g of polymerization inhibitor, 0.9g of carbon black powder, 4g of solvent, 0.2g of defoamer, 0.2g of leveling agent, 0.5g of anti-settling agent, 13g of talc powder, Zinc powder 3g.

[0086] According to the above formula, first add unsaturated polyester resin and polymerization inhibitor, and disperse at low speed for 5 minutes; then add carbon black powder and disperse at high speed for 30 minutes, until the fineness is less than 50 microns (tested with a scraper fineness meter); Foaming agent and leveling agent dispersed at medium speed for 5 minutes; then add silicon micropowder, talc powder, anti-sedimentation agent, zinc powder and disperse at high speed for 30 minutes until the fineness is less than 50 microns (tested with a scraper fineness meter); finally add Solvent, disperse at medium speed for 5 minutes, and stir evenly to obtain MDF primer. (Note: The temperature of the product should no...

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Abstract

The invention provides a MDF primer, comprising the following components in parts by weight: unsaturated polyester resin: 30-60 parts; silicon micropowder: 20-40 parts; polymerization inhibitor: 0.1-0.3 parts; Leveling agent: 0.1-0.3 part; solvent: 3-7 part; defoamer: 0.1-0.3 part; anti-settling agent: 0.3-0.8 part; talcum powder: 10-20 part; zinc powder: 2-5 part. The invention provides that silicon micropowder is added to the MDF primer, and the silicon micropowder has excellent leveling and filling properties in the unsaturated polyester resin primer. The primer is coated on the MDF, and after one month, the paint film on the MDF surface is only slightly collapsed, and it has a good filling effect on the MDF.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a medium fiber board primer. Background technique [0002] MDF is a kind of density board, including long fiberboard and short fiberboard. It is a kind of man-made board made of wood fiber or other plant fiber as raw material, after crushing, fiber separation, drying, applying urea-formaldehyde resin or other suitable adhesives, and then hot pressing. [0003] MDF has the following advantages: 1. The internal structure is uniform, the density is moderate, the dimensional stability is good, the deformation is small, and the physical and mechanical properties are moderate; 2. The surface is smooth and smooth, and the machinability is good. It can be pasted with sliced ​​veneer , pattern and novel and beautiful decorative paper, so it is very popular in home decoration, and is often used to make furniture, partitions, etc.; 3. It can be used as the middle frame and middle clip in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/06C09D7/61
Inventor 刘炳国陈寿生
Owner 珠海展辰新材料股份有限公司