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High-strength powder paint

A powder coating, high-strength technology, applied in the direction of powder coating, epoxy resin coating, coating, etc., can solve the problems of low energy consumption, mechanical properties can not meet the expected requirements, etc., to achieve increased strength, good leveling, The effect of simple operation process

Active Publication Date: 2014-10-29
佛山市涂亿装饰材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Powder coating is a kind of green coating without volatile solvents. It has the advantages of no solvent, low pollution, high material utilization rate and low energy consumption. It is widely used in pipelines, metals, outdoor structural parts and other facilities. Powder coatings use resin and curing After the agent is heated, a cross-linking reaction occurs to form an infusible hard coating. No matter how high the temperature is, the coating can only decompose and will not soften like a thermoplastic resin coating, so it has strong mechanical properties; Among thermosetting powder coatings, epoxy resin powder coatings are widely used in household appliances, vehicles, hardware machinery and other fields due to their strong adhesion, good mechanical properties, and excellent electrical insulation properties. They are one of the most important types of coatings in powder coatings. 1. However, in special fields such as vehicles and hardware machinery, the hardness and mechanical properties of existing powder coatings cannot meet the expected requirements. This is mainly because of the different filler components and ratios in different powder coatings. Epoxy resin powder coatings Good fillers in the epoxy resin play a role as a skeleton, enhance the performance of the coating film, and can also reduce the production cost of the powder coating, and can also increase the powder coating rate and spraying area of ​​the powder. How to change the proportion of different additives in the epoxy resin? The performance of epoxy resin powder coating, the mechanical performance of strengthening powder coating, is the unresolved technical problem of this area always

Method used

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  • High-strength powder paint

Examples

Experimental program
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Effect test

Embodiment 1

[0010] A high-strength powder coating, its composition and weight ratio are: epoxy resin E-12 40%, hydroxyl acrylic resin 8%, EVA resin 6%, titanium dioxide 15-20%, barium sulfate 20%, curing agent TEFC 4%, leveling agent 0.5%, brightener 0.5%, pigment and filler 1%.

Embodiment 2

[0012] A high-strength powder coating, its composition and weight ratio are: epoxy resin E-12 41%, hydroxyl acrylic resin 10%, EVA resin 4%, titanium dioxide 15%, barium sulfate 24%, curing agent TEFC 3 %, leveling agent 1%, brightener 1%, pigment and filler 1%.

Embodiment 3

[0014] A high-strength powder coating, its composition and weight ratio are: epoxy resin E-12 33%, hydroxyl acrylic resin 10%, EVA resin 6%, titanium dioxide 17%, barium sulfate 24%, curing agent TEFC 6 %, leveling agent 1.5%, brightener 1.5%, pigment and filler 1%.

[0015] Production Process:

[0016] (1) Mixing, the raw materials were mixed according to the proportions of Examples 1-3, and mixed at 600rpm for 5min;

[0017] (2) Extrusion, melt extrusion through a screw extruder, the temperature control of the three zones of the extruder is: zone one: 60°C, zone two: 95°C, zone three: 120°C;

[0018] (3) Grinding. The molten material is pressed into tablets by a tablet press, and the thickness is controlled at 3 mm. After being crushed, it is sent to a mill for crushing and grading. After passing through a 160-mesh sieve, the fluidity of the powder is not less than 160.

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Abstract

The invention discloses a high-strength powder paint which is composed of the following components in percentage by weight: 33-41% of epoxy resin, 8-10% of acrylic resin, 3-6% of EVA (ethylene-vinyl acetate) resin, 15-22% of titanium white, 20-24% of barium sulfate, 3-6% of curing agent, 0.5-1.5% of leveling agent, 0.5-1.5% of brightening agent and 1% of pigment and filler. On the premise of ensuring favorable leveling property of the paint, the coating strength of the paint is enhanced, and the cost is lowered. The product adopts the existing production equipment, is simple in operational procedure, and is widely suitable for anticorrosion coatings of household appliances, home appliances, vehicles and hardware machines.

Description

technical field [0001] The invention relates to the field of powder coatings, in particular to a high-strength powder coating. Background technique [0002] Powder coating is a kind of green coating without volatile solvents. It has the advantages of no solvent, low pollution, high material utilization rate and low energy consumption. It is widely used in pipelines, metals, outdoor structural parts and other facilities. Powder coatings use resin and curing After the agent is heated, a cross-linking reaction occurs to form an infusible hard coating. No matter how high the temperature is, the coating can only decompose and will not soften like a thermoplastic resin coating, so it has strong mechanical properties; Among thermosetting powder coatings, epoxy resin powder coatings are widely used in household appliances, vehicles, hardware machinery and other fields due to their strong adhesion, good mechanical properties, and excellent electrical insulation properties. They ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/00C09D123/08C09D5/03
Inventor 武小国
Owner 佛山市涂亿装饰材料科技有限公司
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