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Coating with acrylic modified alkyd resin

An alkyd resin and acrylic technology, applied in epoxy resin coatings, polyester coatings, coatings, etc., can solve problems such as exudation of paint film, cracks, and excessive construction, and achieve strong hiding power and good weather resistance. , The effect of not easy to crack

Inactive Publication Date: 2015-03-11
QINGDAO HOUKE INFORMATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4. Wooden substrates contain turpentine that has not been removed and treated, and the paint film will seep out over time, causing local cracks
5. The moisture content of the wood is too high, which will cause cracking due to deformation over time; 6. Too much curing agent is added, or the wrong curing agent is used; 7. The construction is too thick; 8. The construction environment is harsh, the temperature difference is large, the humidity is large, and the paint film Expansion and contraction by cold and heat, causing cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A paint with acrylic modified alkyd resin is characterized in that: its component weight ratio is: wax ester 17%, epoxy resin 16%, acrylic modified alkyd resin 30%, palm olein 16% , methacrylic resin 8%, semi-matt acrylic pigment 3%, photoinitiator 6%, polyvinyl butyral 10%, polyether modified silicone defoamer 4%, dispersant 4%, the rest is Thinner, the photoinitiator is prepared by the following method: the following are expressed in mole fractions, 1 part of 4-hydroxybenzophenone, 1 to 3 parts of formaldehyde are added to the reaction container, after mixing evenly, add 0.012 parts of alkali As a catalyst, under stirring conditions, heat and keep slightly boiling at 99°C for 3 hours; then raise the temperature to 140-160°C, and perform a decompression reaction for 15 minutes. After the reaction is completed, cool to 110°C to collect the product, and add the product to 20 parts of Precipitated in deionized water and obtained after suction filtration.

[0020] Prefera...

Embodiment 2

[0031] A paint with acrylic modified alkyd resin is characterized in that: its component weight ratio is: 15% of wax ester, 10% of epoxy resin, 20% of acrylic modified alkyd resin, 12% of palm olein 16%, methacrylic resin 5%, semi-matt acrylic pigment 1%, photoinitiator 3%, polyvinyl butyral 5%, polyether modified silicone defoamer 2%, dispersant 2%, The rest is thinner, and the photoinitiator is prepared by the following method: the following are expressed in mole fractions, adding 1 part of 4-hydroxybenzophenone and 1 to 3 parts of formaldehyde into the reaction container, and after mixing evenly, add 0.0102 ~0.012 parts of alkali as a catalyst, under the condition of stirring, heat and keep boiling (90°C) for 1 hour; then raise the temperature to 140°C, carry out the decompression reaction for 10 minutes, cool to 90°C after the reaction to collect the product, and add the product to 10 parts of deionized water were precipitated and obtained after suction filtration.

[003...

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Abstract

The invention relates to a chemical industrial product, and especially relates to a coating with acrylic modified alkyd resin. The coating with the acrylic modified alkyd resin comprises the following components by weight: 15-17% of wax ester, 10-16% of epoxy resin, 20-30% of the acrylic modified alkyd resin, 12-16% of palm olein fine ester, 5-8% of methyl acrylic resin, 1-3% of a semi matt acrylic paint, 3-6% of a photo initiator, 5-10% of polyvinyl butyral, 2-4% of a polyether modified polysiloxane defoamer, 2-4% of a dispersant and balance of a thinner, and has the advantages of light resistance, good weatherability, tinting strength, strong covering power, strong adhesion, and low tendency to crack after use.

Description

technical field [0001] The invention relates to a chemical industry product, especially a coating with acrylic modified alkyd resin. Background technique [0002] Cracks of different depths and sizes appear on the surface of the paint film. If the underlying surface can be seen from the cracks, it is called "cracking". [0003] Reasons for the problem: 1. The primer and topcoat are not compatible, and the coating film is affected by external influences (mechanical action, temperature change, etc.) to produce shrinkage stress, causing cracks or cracks in the paint film. 2. Apply (spray, brush, roll) the topcoat before the primer is completely dry, or the first topcoat is too thick, and then apply the second topcoat before it is completely dry, so that the inside and outside of the two layers of paint are inconsistent. 3. Interior paint is used for outdoor or metal surface primer for wood. 4. If the wooden substrate contains turpentine and has not been removed and treated, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D163/00C09D7/12
CPCC09D167/08C08G63/21C08L2201/08C08L2205/035C09D7/61C09D7/63C09D7/65
Inventor 羊飞屈晓苗
Owner QINGDAO HOUKE INFORMATION ENG
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