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A kind of imitation wood composite paint and preparation method thereof

A composite paint and imitation wood technology, applied in the field of paint, can solve the problems of poor weather resistance and flame retardancy, loss of "imitation wood" value, poor adhesion, etc., to achieve realistic real wood effects, improve anti-settling performance, and improve dispersibility Effect

Active Publication Date: 2021-02-26
WUXI CHUANGCAI OPTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these imitation paints need to be sprayed many times, which have poor adhesion, weather resistance and flame retardancy. Over time, the paint is easy to fall off and crack, which greatly affects the appearance and loses the value of "imitation wood".

Method used

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  • A kind of imitation wood composite paint and preparation method thereof
  • A kind of imitation wood composite paint and preparation method thereof
  • A kind of imitation wood composite paint and preparation method thereof

Examples

Experimental program
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preparation example

[0027] Silicone-modified polyimide powder was prepared according to the following steps (1)-(4), wherein the raw materials, proportions and reaction conditions are shown in Table 1.

[0028] (1) Dissolving the dianhydride in a solvent to prepare a dianhydride solution with a mass concentration of 5-10%, and adding dropwise a diamine solution of the same solvent with a mass concentration of 5-10% in the solution, wherein the dianhydride and the dianhydride The molar ratio of the amine is 1.0-1.1:1 to obtain a polyamic acid solution;

[0029] (2) After the reaction finishes, add 2-5% aminoalkoxysilane of polyamic acid solution quality, make it fully react;

[0030] (3) preparing the product of step (2) into an aminoalkoxy-modified polyimide film with a thickness of 5-80 μm by solution casting, salivation, or solution extrusion;

[0031] (4) Shear and pulverize the film to 400-500 mesh powder.

[0032] Table 1

[0033]

Embodiment 1

[0035] Dissolve 100kg of bisphenol A type epoxy resin (E-03 type) and 150kg of silicone modified polyimide powder Z-1 in 400kg of solvent (dimethyl carbonate: ethanol volume ratio 1:1), in 200 Mix at ℃ for 5 hours;

[0036]Each component (sodium pyrophosphate 64kg, trisodium phosphate 64kg, organobentonite 96kg, diatomite 64kg, hibiscus red colored sand 32kg, blue gray colored sand 18kg, snowflake white colored sand 12kg) as auxiliary agents was put all at 70°C The auxiliary agent is mixed and added to the above solvent mixture to obtain the imitation wood composite paint of the present invention.

Embodiment 2

[0038] Dissolve 150kg of bisphenol F epoxy resin (EP-4901E) and 150kg of silicone modified polyimide powder Z-2 in 600kg of solvent (ethanol: n-butanol volume ratio 1:2), at 200°C Mix for 5 hours;

[0039] All ingredients (sodium pyrophosphate 18kg, sodium metasilicate 18kg, organobentonite 27kg, mica powder 18kg, cherry red colored sand 9kg, blue gray colored sand 6kg, snowflake white colored sand 4kg) used as auxiliary agents were mixed at 70°C The auxiliary agent is mixed and added to the above solvent mixture to obtain the imitation wood composite paint of the present invention.

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Abstract

The invention relates to a wood-like composite paint and a preparation method thereof. The wood-like composite paint of the present invention comprises 10-15% epoxy resin, 10-15% organosilicon-modified polyimide powder, 40‑60% solvent, the rest are additives. The wood-like composite paint of the present invention can be directly sprayed on cement walls or steel plates at one time, and is a wood-like composite paint with good wood-like effect, no cracking, no paint falling off, high weather resistance, insulation and flame retardancy.

Description

technical field [0001] The invention relates to the technical field of paints, in particular to a wood-like composite paint and a preparation method thereof. Background technique [0002] In traditional industries, wood is the main material used for home panels and construction projects. However, the over-exploitation of forest resources has caused the deterioration of the ecological environment and soil erosion. Therefore, in order to save forest resources and avoid deforestation, "imitation wood" technology has begun to flourish. develop. The most rapid development is wood-like boards, such as polyurethane, polyethylene, etc. combined with micro-foaming, injection molding or extrusion molding processes to form syntactic foams. They have high rigidity and mechanical strength. From the perspective of strength, their It is perfect to replace wood, but this kind of material itself has a very low ignition point and is extremely flammable, which poses a safety hazard. For exam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D179/08C09D5/25C09D5/18C09D7/63
CPCC08L2201/02C08L2201/08C09D5/00C09D5/18C09D163/00C09D179/08C09D7/63C08L63/00C08K7/26C08K3/32C08K3/346C08K3/36C08K13/04C08K5/544
Inventor 周浪孔鹏飞赵子刚陈玉净
Owner WUXI CHUANGCAI OPTICAL MATERIALS
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