Preparation method of solvent-free elastic metallic paint producing high thermal radiation

An elastic metal and radiation technology, applied in the field of metallic paint, can solve the problems of poor color retention and gloss retention, easy cracking of metallic paint, poor high and low temperature deformation resistance, etc., and achieves good decoration, excellent weather resistance and stain resistance. , the effect of excellent elasticity

Active Publication Date: 2013-05-01
洛阳双瑞防腐工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above problems, the present invention provides a method for preparing a solvent-free elastic metallic paint with high heat radiation. The metallic paint prepared according to the preparation method has excellent elasticity, excellent stain resistance, high It has the characteristics of low temperature deformation, good color and gloss retention, low temperature film formation and environmental protection, and has good heat insulation performance and waterproof performance. Problems such as easy cracking of paint, poor color and gloss retention, and poor resistance to high and low temperature deformation

Method used

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  • Preparation method of solvent-free elastic metallic paint producing high thermal radiation
  • Preparation method of solvent-free elastic metallic paint producing high thermal radiation

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preparation example Construction

[0037] The elastic weathering resin is prepared by adding dibutyl maleate dropwise to a four-necked flask equipped with a dispersion, thermometer, and reflux condenser at room temperature and under nitrogen protection, and then adding a metered linear amino-terminated polyether, heating Insulate for 3 hours at 60℃ and 20h when heated to 80℃. After the temperature drops to room temperature, the elastic weathering tree will be obtained. This elastic weathering resin is a kind of low viscosity and yellowing resistant steric elastic aliphatic secondary Metaamine resin, it is recommended that the above-mentioned dibutyl maleate be provided by Shanghai Feida Industry and Trade Co., Ltd., and the above-mentioned linear amino-terminated polyether is recommended to be Jeffamine D2000 provided by Huntsman.

[0038] The preparation of composite cellulose acetate butyrate slurry is to mix 1 part by weight of CAB-551-0.2 and 1 part by weight of CAB-381-2, and then add 8 parts by weight of elas...

Embodiment 1

[0050] First, the elastic weather-resistant resin, the composite cellulose acetate butyrate slurry and the yellowing-resistant elastic curing agent are prepared according to the above method.

[0051] Then take 30 parts of elastic weathering resin, 5 parts of ETERFLON 4101, 22 parts of composite cellulose acetate butyrate slurry, 0.6 parts of BYK-162, 0.3 parts of Tinuvin384-2 in the upper abrasive group by weight. , 0.5 parts of Tinuvin292, 5 parts of YT-803 and 7 parts of BASF-EVA3 wax are put into a high-speed disperser and mixed and dispersed for 30-40 minutes. The speed of the high-speed disperser is controlled at 600-800 rpm, mixing and dispersing After finishing, transfer to sand mill to grind to fineness ≤30um, then transfer back to high-speed disperser, and then add 13 parts of CE-110 and 0.6 parts of EFKA3600N in the lower abrasive group according to parts by weight. Mix and disperse at 600-800 rpm for 30-40 minutes, and finally use 6 parts of Lexomer WA98 to adjust its...

Embodiment 2

[0055] First, the elastic weather-resistant resin, the composite cellulose acetate butyrate slurry and the yellowing-resistant elastic curing agent are prepared according to the above method.

[0056] Then take 35 parts of elastic weathering resin, 3 parts of ETERFLON 4101, 25 parts of composite cellulose acetate butyrate slurry, 0.4 parts of BYK-162, 0.3 parts of Tinuvin384-2 in the upper abrasive group according to parts by weight. , 0.7 parts of Tinuvin292, 7 parts of YT-803 and 5 parts of BASF-EVA3 wax are put into a high-speed disperser and mixed and dispersed for 30-40 minutes. The speed of the high-speed disperser is controlled at 600-800 rpm, mixing and dispersing After finishing, transfer to sand mill to grind to fineness ≤30um, then transfer back to high-speed disperser, transfer the upper abrasive group after grinding to the disperser, and then add to the lower abrasive group in parts by weight 10 parts of CE-160 and 0.6 parts of EFKA3288 are mixed and dispersed for 30...

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Abstract

The invention discloses a preparation method of solvent-free elastic metallic paint producing high thermal radiation. The preparation method comprises the following steps of 1, preparing an elastic weather-resistant resin, composite cellulose acetate butyrate slurry, and a yellowing-resistant elastic curing agent, 2, respectively preparing a component A comprising the elastic weather-resistant resin, a fluorocarbon resin, the composite cellulose acetate butyrate slurry, a wetting dispersant, an ultraviolet light absorber, a light stabilizer, a nano-titanium aldehyde powder, a directional alignment assistant, aluminum powder, a leveling agent and an active toughening agent, and a component B comprising the yellowing-resistant elastic curing agent and an HDI tripolymer, and 3, mixing the component A and the component B according to the ratio of 1: 1, and carrying out uniform dispersion to obtain the solvent-free elastic metallic paint. The solvent-free elastic metallic paint has characteristics of excellent elasticity, excellent stain resistance, high/low temperature deformation resistance, good color retention, good gloss retention, low-temperature film formation and environmental protection, has good heat-insulating properties and water resistance, can cover external wall tiny-cracks produced by deformation, and solves the problem that the existing metallic paint for an external wall crazes easily, has poor color retention and gloss retention, and poor high/low temperature deformation resistance.

Description

technical field [0001] The invention belongs to the technical field of metal paints, in particular to a method for preparing a solvent-free elastic metal paint with high thermal radiation. Background technique [0002] Due to the changeable climatic conditions, local cracks often appear on the surface of the outer wall of the building. Under the action of thermal expansion and contraction, the cracks also become larger or smaller, which requires the metal paint coating to have certain elasticity and waterproof sex. [0003] The traditional solvent-based fluorocarbon metal paint coating is hard, dense, and inelastic, and cannot effectively cover cracks. The phenomenon of cracking, hollowing or even falling off of the metal paint has become a common quality problem. Environmental pollution also limits its application. [0004] Existing water-based metallic paints, due to the chemical reaction of metal pigments such as copper gold powder and aluminum powder in water, lose col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/08C09D175/06C09D7/12
Inventor 马小强张东亚张乐显卫小星徐飞鹏
Owner 洛阳双瑞防腐工程技术有限公司
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