Unlock instant, AI-driven research and patent intelligence for your innovation.

Waterproof powder coating

A powder coating and glycidyl ether technology, applied in powder coatings, asphalt coatings, epoxy resin coatings, etc., can solve the problems of poor waterproof performance, powder coating peeling, affecting the life of the paint film, etc. The effect of high resistance and less charge leakage

Inactive Publication Date: 2015-03-04
李永志
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the surface resistance of the powder coating is too low, it is easy to cause the leakage of charges at the corners of the substrate, which will cause the powder coating on the substrate to fall off
[0004] In addition, if the waterproof performance of the paint is not good, it will affect the life of the paint film.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of waterproof powder coating, comprises the following steps,

[0015] (1) Mix 25 parts of bisphenol F epoxy resin, 40 parts of aliphatic glycidyl ether epoxy resin, 8 parts of poly(meth)acrylic resin with free carboxyl groups, 3 parts of magnesium carbonate, 5 parts of rubber powder, 5 parts Thermoplastic SEBS styrene-butadiene rubber, 2 parts of asphalt, 2 parts of talc, 10 parts of carbon black, 3 parts of aluminum powder, 2 parts of red iron oxide, 1 part of curing agent, 0.3 parts of stabilizer and 2 parts of leveling agent.

[0016] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature in the middle section of the extruder to 120°C-130°C and then extrude to form, and obtain powder coating after crushing.

Embodiment 2

[0018] The preparation method of waterproof powder coating, comprises the following steps,

[0019] (1) Mix 30 parts of bisphenol F epoxy resin, 45 parts of aliphatic glycidyl ether epoxy resin, 13 parts of poly(meth)acrylic resin with free carboxyl groups, 4 parts of magnesium carbonate, 8 parts of rubber powder, 10 parts Thermoplastic SEBS styrene-butadiene rubber, 4 parts of asphalt, 3 parts of talc, 12 parts of carbon black, 4 parts of aluminum powder, 4 parts of red iron oxide, 2 parts of curing agent, 0.9 parts of stabilizer and 5 parts of leveling agent.

[0020] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature in the middle section of the extruder to 120°C-130°C and then extrude to form, and obtain powder coating after crushing.

Embodiment 3

[0022] The preparation method of waterproof powder coating, comprises the following steps,

[0023] (1) Mix 27 parts of bisphenol F epoxy resin, 44 parts of aliphatic glycidyl ether epoxy resin, 10 parts of poly(meth)acrylic resin with free carboxyl groups, 3.5 parts of magnesium carbonate, 6.5 parts of rubber powder, 7 parts Thermoplastic SEBS styrene-butadiene rubber, 3 parts of bitumen, 2.5 parts of talc, 11 parts of carbon black, 3.5 parts of aluminum powder, 3 parts of red iron oxide, 1.5 parts of curing agent, 0.6 parts of stabilizer and 3 parts of leveling agent.

[0024] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature in the middle section of the extruder to 120°C-130°C and then extrude to form, and obtain powder coating after crushing.

[0025] When adopting the raw material of the present invention to prepare powder coating, owing to having included aliphatic glycidyl ether epoxy resin, poly(meth)acryli...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a waterproof powder coating. The waterproof powder coating comprises the following components in parts by weight: 25-30 parts of bisphenol F epoxy resin, 40-45 parts of aliphatic glycidyl ether epoxy resin, 8-13 parts of poly(meth)acrylic resin with free carboxylic, 3-4 parts of magnesium carbonate, 5-8 parts of rubber powder, 5-10 parts of thermoplastic SEBS (styrene--ethylene-butylene-styrene) rubber, 2-4 parts of asphalt, 2-3 parts of talcum powder, 10-12 parts of carbon black, 3-4 parts of aluminum powder, 2-4 parts of iron oxide red, 1-2 parts of curing agent, 0.3-0.9 part of stabilizer and 2-5 parts of flatting agent. The waterproof powder coating has the suitable volume resistance, high surface resistance and good waterproofness.

Description

technical field [0001] This invention relates to powder coatings. Background technique [0002] At present, with the rapid development of global industry, the environmental problems caused are becoming increasingly prominent. How to carry out environmental protection work has become an important subject to be studied urgently. Some western countries with strong environmental awareness have developed and researched automotive coatings with low volatile organic compounds, and put them into production and use in large quantities. With the continuous development of the automobile industry, in order to beautify the appearance of the automobile coating film and reduce the environmental pollution caused by it, it is particularly important to improve the automobile spraying technology. [0003] For powder coatings, if the volume resistance of the powder coating is too high, the powder will not be easily adsorbed on the substrate, and if the volume resistance is too low, the p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D163/00C09D133/00C09D153/02C09D195/00C09D7/12C09D5/03
CPCC09D163/00C08L2205/02C08L2205/035C09D5/033C09D7/61
Inventor 李永志
Owner 李永志