Polyaspartic acid coating for heavy corrosion prevention as well as preparation method and application thereof

A polyaspartic acid, heavy-duty anti-corrosion technology, used in anti-corrosion coatings, coatings, etc., can solve the problems of fast handling, environmental protection and green, and achieve the effects of shortening hardening time, low VOC, and improving curing rate

Active Publication Date: 2020-04-10
WUXI HUADONG ZINDN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the system of epoxy zinc-rich primer, epoxy mica iron intermediate paint, polyurethane or

Method used

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  • Polyaspartic acid coating for heavy corrosion prevention as well as preparation method and application thereof
  • Polyaspartic acid coating for heavy corrosion prevention as well as preparation method and application thereof
  • Polyaspartic acid coating for heavy corrosion prevention as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Component A:

[0022]

[0023] Table 1 Composition of Group A

[0024] Preparation process: Put component 1-7, 800 rpm into the tank and stir for 20 minutes, add components 8 and 9, stir for 20 minutes at 800 rpm, and then grind all the materials to a fineness of 30um or less through a grinder (specifically ground, 25-30um), through 200 mesh filter packs to obtain the first component. In resin SupPu1, R is -CH 3 , X is -CH 2 ; In resin SupPu2, R is -CH 2 -CH 3 , X is (CH 2 ) 15 .

[0025] Component B: Bayer N3390

[0026] The ratio of A to B is 5:1 (mass ratio)

[0027] When in use, mix components A and B evenly at a mass ratio of 5:1, then add a small amount of diluent (the diluent is butyl acetate, the mass ratio of component A: component B: diluent 5:1:0.5) and spray That's it. The coating has high solid content and low VOC. The product can form hardness within 20 minutes (the hardness is measured as 3H (Mitsubishi pencil), GB / T 6739), and it can be tr...

Embodiment 2

[0031] Part A

[0032]

[0033]

[0034] Table 3 Composition of Group A

[0035] The preparation process of component A: Put 1-7 components into the tank, stir for 20 minutes at 800 rpm, add components 8 and 9, stir for 20 minutes at 800 rpm, and then grind all the materials through a grinder until fine Degree below 30um (specifically, 25-30um), through 200 mesh filter screens, filter and package to obtain the first component. In resin SupPu1, R is -CH 3 , X is -(CH 2 ) 2 ; In resin SupPu2, R is -CH 2 -CH 3 , X is (CH 2 ) 16 .

[0036] Component B: BASF HI-190

[0037] The ratio of A and B components is 5:1 (mass ratio):

[0038] When in use, mix components A and B evenly at a mass ratio of 5:1, then add a small amount of diluent (the diluent is butyl acetate, the mass ratio of component A: component B: diluent 5:1:0.5) and spray That's it. The coating has high solid content and low VOC. The product can form hardness within 30 minutes (the hardness is measur...

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Abstract

The invention relates to a polyaspartic acid coating for heavy corrosion prevention as well as a preparation method and application thereof. The polyaspartic acid coating for heavy corrosion prevention is prepared by mixing a component A and a component B at a mass ratio of 5: 1, wherein the component A is prepared from the following components in parts by weight: 12 to 18 parts of a butyl ester,15 to 25 parts of resin SupPu1, 7 to 16 parts of resin SupPu2, 1 to 1.5 parts of polyamide wax slurry, 0.5 to 1 part of a dispersing agent, 0.5 to 1 part of an antifoaming agent, 0.2 to 0.5 part of aleveling agent, 15 to 20 parts of titanium dioxide and 35 to 45 parts of silica powder; the component B is a curing agent. By designing the contents of the SupPu1 and the SupPu2, coating products withdifferent reaction rates can be obtained, the curing rate of the coating is greatly reduced, the hardening time of the coating is shortened, and the requirements of rapid carrying, environmental protection and greenness can be met.

Description

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Claims

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Application Information

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Owner WUXI HUADONG ZINDN TECH
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