Special primer for heavy-duty machinery

A technology of heavy machinery and primer, applied in the direction of coating, anti-corrosion coating, epoxy resin coating, etc., can solve the problems of low cost performance of pollution, anti-corrosion and insufficient performance of supporting construction, etc. safe effect

Inactive Publication Date: 2012-08-01
JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing epoxy coating as a primer, which is insufficient in anti-corrosion and supporting construction performance, and to provide a kind of anti-corrosion performance excellent, A two-component heavy-duty machinery special epoxy primer that can adapt to a variety of coating methods, has good construction matching and low pollution, and is cost-effective

Method used

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  • Special primer for heavy-duty machinery
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  • Special primer for heavy-duty machinery

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Put 450g of bisphenol A into the dissolution kettle, then pass through 900g of epichlorohydrin, heat the jacket with water vapor and raise the temperature to above 70°C to dissolve. After completely dissolving, use a pump to press into a stirred reactor, use quaternary ammonium salt as a catalyst, slowly add 265mL of NaOH solution with a mass fraction of 30%, and control the reaction temperature during this process to be 50-55°C. After the dropwise addition of the NaOH solution is completed, raise the temperature to 70-75°C and keep for 1 hour, then raise the temperature to 100°C and reduce the pressure to 94.66kPa, and recover excess epichlorohydrin for recycling. Then add methyl isobutyl ketone (MIBK) which is 20% by mass of the resin liquid (previously prepared mixture) to dissolve the resin liquid, leave to stand and separate after stirring. Add the resin liquid and methyl isobutyl ketone solution in the upper layer into the water separator, stir, heat, maintain, st...

Embodiment 2

[0030]Put 500g of bisphenol A into the dissolution kettle, then pass through 1200g of epichlorohydrin, heat the jacket with water vapor and raise the temperature to above 70°C to dissolve. After completely dissolving, pump it into a stirred reactor, use quaternary ammonium salt as a catalyst, slowly add 260mL NaOH solution with a mass fraction of 30%, and control the reaction temperature during this process to 50-55°C. After the dropwise addition of the NaOH solution is completed, raise the temperature to 70-75°C and keep for 1 hour, then raise the temperature to 100°C and reduce the pressure to 94.66kPa, and recover excess epichlorohydrin for recycling. Then add methyl isobutyl ketone (MIBK) which is 25% by mass of the resin liquid (previously prepared mixture) to dissolve the resin liquid, leave to stand and separate after stirring. Add the resin liquid and methyl isobutyl ketone solution in the upper layer into the water separator, stir, heat, maintain, stand still and remo...

Embodiment 3

[0033] Put 400g of bisphenol A into the dissolution kettle, then pass through 850g of epichlorohydrin, heat the jacket with water vapor and raise the temperature to above 70°C to dissolve. After completely dissolving, use a pump to press into a stirred reactor, use quaternary ammonium salt as a catalyst, slowly add 250mL NaOH solution with a mass fraction of 30%, and control the reaction temperature during this process to 50-55°C. After the dropwise addition of the NaOH solution is completed, raise the temperature to 70-75°C and keep for 1 hour, then raise the temperature to 100°C and reduce the pressure to 94.66kPa, and recover excess epichlorohydrin for recycling. Then add methyl isobutyl ketone (MIBK) which is 20% by mass of the resin liquid (previously prepared mixture) to dissolve the resin liquid, leave to stand and separate after stirring. Add the resin liquid and methyl isobutyl ketone solution in the upper layer into the water separator, stir, heat, maintain, stand st...

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Abstract

The invention relates to a special primer for heavy-duty machinery, which consists of A components and B components, wherein the A components include, by weight percentage (amount to 100%), 40-50% of epoxy resin, 8-12% of diluents, 1-5% of auxiliary, 7-15% of paint and 28-37% of fillers, and the B components include modified polyamide curing agent. The primer made by resin with proper epoxy equivalent, functional paint and fillers and high-performance curing agent is stable in quality, dry, quick, excellent in corrosion resistance, applicable to various coating manners, excellent in construction compatibility, low in price, non-toxic and environment-friendly and can be applied to the heavy-duty machinery having high requirement for corrosion resistance.

Description

technical field [0001] The invention belongs to the field of coatings for heavy industry machinery, and in particular relates to a vegetable oil modified two-component epoxy primer. Background technique [0002] With the fierce competition in the market, construction machinery products not only have reliable mechanical properties, but also need to have high decoration and high protection performance. Among them, the anti-corrosion coating quality of heavy machinery has become an important aspect to measure the overall quality of products, and it is also one of the technical difficulties. The coating of heavy machinery products is mainly composed of primer, intermediate paint and top coat. The requirements for the primer are good corrosion resistance, strong adhesion, high mechanical strength, and salt water resistance; easy to brush, easy to polish, no sag, and can adapt to various coating methods; it has good compatibility with intermediate paint and top coat Compatibilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D7/12C09D5/12
Inventor 谢海张波
Owner JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD
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