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Solvent-free epoxy coating

An epoxy coating, solvent-free technology, applied in the field of coatings, can solve problems such as ineffective protection of steel, and achieve the effects of stable storage, strong corrosion resistance, and high adhesion

Inactive Publication Date: 2015-06-17
COSCO KANSAI PAINT & CHEM TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coatings in the prior art can only adapt to other relatively less corrosive atmospheric areas, full immersion areas, etc., but cannot effectively protect steel in tidal range areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The unit is parts by mass

[0014] Main agent:

[0015]

[0016]

[0017] The main agent and the curing agent are prepared in a mass ratio of 8:1 to prepare the coating of the present invention. The specific preparation method is: adding each component in the main agent except the anti-settling agent and the anti-sagging agent to the reaction kettle Stir at high speed, disperse into a slurry, then grind to 60 microns with a grinder, add anti-settling agent and anti-sagging agent and stir evenly at low speed; then add modified m-xylylenediamine and curing accelerator to the main ingredient and stir Discharge evenly.

Embodiment 2

[0019] The unit is parts by mass

[0020] Main agent:

[0021]

[0022] The main agent and curing agent are prepared in a mass ratio of 8:1, and the preparation method is the same as in Example 1.

Embodiment 3

[0024] The unit is parts by mass

[0025] Main agent:

[0026]

[0027] The main agent and curing agent are prepared in a mass ratio of 8:1, and the preparation method is the same as in Example 1.

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Abstract

The invention discloses a solvent-free epoxy coating, comprising a main agent and a curing agent in the weight ratio of 8:1. The main agent comprises the following components: 30-40 parts of aliphatic silicone modified epoxy resin, 7.0-10.0 parts of an elastic epoxy active diluent, 0.3-3.0 parts of a wetting and dispersing agent, 0.1-0.3 part of an antifoaming agent, 0.1-0.3 part of a defoaming agent, 1.0-2.0 parts of an anti settling agent, 0.1-3.0 parts of an anti sagging agent, 0.5-1.0 part of a silane coupling agent, 2-5 parts of a pigment, 11.0-22.0 parts of glass flake, and 30.0-35.5 parts of feldspar powder; and the curing agent comprises the following components by weight: 95.0-97.0 parts of modified amine and 3-5 parts of a curing accelerator. The paint can play good anticorrosion protection effect on the steel in tidal zone of the sea.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a solvent-free epoxy coating. Background technique [0002] At present, the continuous progress of marine engineering has made a significant contribution to social and economic development. However, because seawater contains a large amount of salt electrolyte solution, it will cause corrosion to the steel used in marine engineering equipment, affect the normal operation of engineering equipment, and even cause safety accidents. Especially for facilities such as tidal power stations, which are scoured by waves and seabed sediment all the year round, their steel materials are more susceptible to erosion by seawater. [0003] In the prior art, anti-corrosion paint is usually sprayed on the steel surface to prevent it from being corroded and cracked in the marine environment, but the effects are not satisfactory. For example, seawater can usually be divided into atmospheric area, spray spla...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/08
CPCC09D163/00C08K3/34C08K5/54C08K7/00C09D5/08C09D7/61C09D7/63
Inventor 吴权
Owner COSCO KANSAI PAINT & CHEM TIANJIN
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