A kind of thick coating type unsaturated polyester white primer and preparation method thereof

An unsaturated, white primer technology, used in polyester coatings, coatings, polyurea/polyurethane coatings, etc., can solve the problems of cracking, foaming, sagging, etc., to achieve full paint film, high gloss, leveling Good results

Active Publication Date: 2017-03-15
肇庆千江高新材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of coating process is prone to defects such as blistering, collapse, cracking, and sagging when the spray is relatively thick

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation method of thick coating type unsaturated polyester white primer is:

[0053] (1) Add 55 parts of PE unsaturated polyester resin, 0.3 part of dispersant, 0.1 part of defoamer and 2 parts of solvent into the stirring tank in sequence, and stir for 5 to 10 minutes at a speed of 400~800r / min.

[0054] (2) Add 10 parts of PE special powder, 18 parts of rutile titanium dioxide, 0.3 parts of organic soil, 0.1 part of fumed silica, 10 parts of heavy calcium, and 1 part of zinc stearate, at a speed of 800~1200r / min , high-speed stirring and dispersing for 30-40 minutes.

[0055] (3) Finally, add 0.1 parts of leveling agent and 3.1 parts of solvent, and stir for 20 to 30 minutes at a speed of 400 to 600 r / min to complete the whole thick-coated unsaturated polyester white primer.

[0056] Wherein, the preparation method of PE unsaturated polyester resin is:

[0057] 1) Put 8 parts of toluene diisocyanate and trimethylolpropane (TMP) in a molar ratio of 1:1 into a...

Embodiment 2

[0062] The preparation method of thick coating type unsaturated polyester white primer is:

[0063] (1) Add 45 parts of PE unsaturated polyester resin, 0.5 part of dispersant, 0.5 part of defoamer and 1 part of solvent into the stirring tank in sequence, and stir for 5 to 10 minutes at a speed of 400~800r / min.

[0064] (2) Add 20 parts of PE special powder, 10 parts of rutile titanium dioxide, 1 part of organic soil, 1 part of fumed silica, 13 parts of heavy calcium, and 5 parts of zinc stearate, at a speed of 800~1200r / min , high-speed stirring and dispersing for 30-40 minutes.

[0065] (3) Finally, add 0.5 parts of leveling agent and 2 parts of solvent, and stir for 20 to 30 minutes at a speed of 400 to 600 r / min to complete the thick-coated unsaturated polyester white primer.

[0066] Wherein, the preparation method of PE unsaturated polyester resin is:

[0067] 1) Put 8.68 parts of toluene diisocyanate and trimethylolpropane (TMP) with a total weight of 8.68 parts at a m...

Embodiment 3

[0072] The preparation method of thick coating type unsaturated polyester white primer is:

[0073] (1) Add 45.5 parts of PE unsaturated polyester resin, 0.4 parts of dispersant, 0.3 parts of defoamer and 3 parts of solvent into the stirring tank in sequence, and stir for 5 to 10 minutes at a speed of 400~800r / min.

[0074] (2) Add 10 parts of PE special powder, 10 parts of rutile titanium dioxide, 0.7 parts of organic soil, 0.5 parts of fumed silica, 20 parts of heavy calcium, and 2 parts of zinc stearate, at a speed of 800~1200r / min , high-speed stirring and dispersing for 30-40 minutes.

[0075] (3) Finally, add 0.3 parts of leveling agent and 7 parts of solvent, and stir for 20 to 30 minutes at a speed of 400 to 600 r / min to complete the thick coating type unsaturated polyester white primer.

[0076] Wherein, the preparation method of PE unsaturated polyester resin is:

[0077] 1) Put 13 parts of toluene diisocyanate and trimethylolpropane (TMP) in a molar ratio of 1:1 i...

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Abstract

The invention provides a thick coating type unsaturated polyester white primer paint and a preparation method thereof. The thick coating type unsaturated polyester white primer paint is prepared from the following components in parts by weight: PE unsaturated polyester resin, a dispersing agent, rutile titanium dioxide, organic soil, gas-phase silicon dioxide, ground limestone, PE special powder, zinc stearate, a solvent, a flatting agent, a de-foaming agent and a catalyst; the PE unsaturated polyester resin is prepared from butanediol, cis-butenedioic anhydride, phthalic anhydride, glycidyl allyl ether, TDI-TMP, a polymerization inhibitor, styrene and a catalyst; and TDI-TMP is prepared from toluene isocyanate and trimethylolpropane in a molar ratio of 1 to 1. According to the unsaturated polyester white primer paint and the preparation method thereof, the thick coating type unsaturated polyester white primer paint is directly sprayed and then next procedure can be carried out. Therefore, the time and labor of customers are reduced; and meanwhile, the production efficiency is improved, the manpower is reduced and the production cost is reduced further.

Description

technical field [0001] The invention relates to a thick-coated unsaturated polyester white primer for wood coating and a preparation method thereof, in particular to a variety of solid wood and low-density MDF that have not been sealed or poorly sealed. A thick coating type unsaturated polyester white primer and a preparation method thereof. Background technique [0002] Unsaturated polyester white primers currently used for wood coatings occupy a considerable market share in the market. The painting process of general furniture factories is to spray PU sealing primer or PU transparent primer first, dry and polish, then spray unsaturated polyester white primer, and then proceed to the next process. [0003] For unsaturated polyester white primer, there are many technical requirements for it, such as: good sealing, good filling, good anti-sag, excellent anti-sagging, short sanding time, excellent sanding, and interlayer adhesion. Strong focus, excellent hiding power and so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/06C09D175/06C09D7/12C08G63/91C08G63/52C08G18/42
CPCC08K2003/2241
Inventor 李会宁陈仕箐谢金华
Owner 肇庆千江高新材料科技股份公司
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