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Unsaturated polyester resin coating and preparation method thereof

A polyester resin and unsaturated technology, applied in the field of unsaturated polyester resin coatings and their preparation, can solve the problem of large curing shrinkage of unsaturated polyester resins, affecting the decorative effect and protective effect of coatings on furniture, and cracking of paint films. question

Inactive Publication Date: 2021-02-09
SHANGHAI CARPOLY PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the curing shrinkage of unsaturated polyester resin is relatively large
In addition, when the existing unsaturated polyester resin coating is applied to solid wood furniture, when the furniture has a process groove or a carved part, the stress concentration of the paint film during film formation will easily lead to the problem of cracking of the paint film, especially in the process tank. And carved depressions, when the thickness of the paint film is large, the problem of cracking of the paint film is particularly obvious, which in turn affects the decorative effect and protective effect of the paint on the furniture

Method used

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  • Unsaturated polyester resin coating and preparation method thereof
  • Unsaturated polyester resin coating and preparation method thereof

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0115] A preparation method for unsaturated polyester resin coating, comprising the following steps:

[0116] The preparation process of component A: mix the air-drying unsaturated polyester resin, thermoplastic acrylic resin, dispersant, filler, auxiliary agent and styrene under the condition of 1300 rpm-1500 rpm Stir for 10min-20min;

[0117] The preparation process of component B: mix the diluted monomer and solvent, and stir for 5min-10min under the condition of 300rpm-500rpm;

[0118] The components A, B, C and D are mixed according to the designed mass ratio and reacted.

Embodiment 1

[0131] This embodiment provides an unsaturated polyester resin coating and a preparation method thereof.

[0132] (1) The composition of unsaturated polyester resin coating 1:

[0133] The mass ratio of component A, component B, component C and component D is: 100:25:1:1.2;

[0134] Component A is prepared from the following raw materials in mass percentage: 25% of dicyclopentadiene-modified air-drying unsaturated polyester, 8% of thermoplastic acrylic resin, 0.5% of dispersant, 31% of heavy calcium carbonate, talcum powder 10%, barium sulfate 10%, titanium dioxide 10%, leveling agent 0.499%, defoamer 0.5%, anti-settling agent 0.5%, polymerization inhibitor 0.001%, zinc stearate 1% and styrene 3%;

[0135] Component B is prepared from the following raw materials in mass percentage: styrene 38.099%, xylene 31.9%, ethyl acetate 30%, polymerization inhibitor 0.001%;

[0136] C component: cobalt isooctanoate;

[0137] Component D: methyl ethyl ketone peroxide.

[0138] (2) pre...

Embodiment 2

[0143] This embodiment provides an unsaturated polyester resin coating and a preparation method thereof.

[0144] (1) The composition of unsaturated polyester resin coating 2:

[0145] The mass ratio of component A, component B, component C and component D is: 100:25:1:1.2;

[0146] Component A is prepared from the following raw materials in mass percentage: 25% of dicyclopentadiene modified air-drying unsaturated polyester, 7% of thermoplastic acrylic resin, 0.5% of dispersant, 28.2% of heavy calcium carbonate, talcum powder 15%, barium sulfate 8%, titanium dioxide 10%, leveling agent 0.299%, defoamer 0.4%, anti-settling agent 0.6%, polymerization inhibitor 0.001%, zinc stearate 1% and styrene 4%;

[0147] Component B is prepared from the following raw materials in mass percentage: styrene 38.099%, xylene 31.9%, ethyl acetate 30%, polymerization inhibitor 0.001%;

[0148] C component: cobalt isooctanoate;

[0149] Component D: methyl ethyl ketone peroxide.

[0150] (2) pr...

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Abstract

The invention relates to an unsaturated polyester resin coating and a preparation method thereof. The unsaturated polyester resin coating is mainly prepared from a component A, a component B, a component C and a component D in a mass ratio of 100: (25-50): (0.8-2.5): (1-2.5), wherein the component A is prepared from the following raw materials: 20%-50% of air-dried unsaturated polyester resin, 2%-15% of thermoplastic acrylic resin, 0.1%-1% of a polyphosphate polymer, 20%-65% of filler, 0.1%-4% of an auxiliary agent and 1%-5% of styrene; the component B comprises the following raw materials inpercentage: 10%-50% of a diluting monomer and 50%-90% of a solvent; the component C is a curing accelerator; and the component D is an initiator. A paint film obtained from the unsaturated polyester resin coating is high in hardness, strong in adhesive force, relatively high in glossiness, high in drying speed, excellent in thick coating anti-cracking property, good in light sinking property and excellent in comprehensive performance, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an unsaturated polyester resin coating and a preparation method thereof. Background technique [0002] Unsaturated polyester resin is a polymer containing unsaturated double bonds formed by polycondensation of dibasic acids and diols. It is a thermosetting resin that can be cured into a Insoluble and infusible high molecular network polymer. Unsaturated polyester resin has many advantages, such as excellent processing performance, good chemical corrosion resistance, low price, simple preparation and use, good overall performance of the molded product, and low requirements for coating temperature, and The decorative effect of the paint film is good, the paint film is tough and wear-resistant, and it is easy to maintain. Therefore, unsaturated polyester resins are widely used in many fields such as resin-glass fiber composite materials, artificial marble, and wood lacquer. [0003] Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D133/04C09D7/61C09D7/63C09D7/20
CPCC09D167/06C09D7/61C09D7/63C09D7/20C08L2205/03C08K2003/3045C08K2003/2241C08K2003/265C08L33/04C08L85/02C08K13/02C08K5/098C08K3/22C08K3/26C08K3/34C08K3/30
Inventor 苏东泓郑振杰
Owner SHANGHAI CARPOLY PAINT
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