Solvent-free high-elasticity epoxy self-leveling coating and preparation method thereof

A high-elasticity, self-leveling technology, used in epoxy resin coatings, coatings, etc., can solve problems such as poor dynamic load bearing capacity, affecting the performance of coatings, and easy scratches on the floor surface, to improve impact strength and Toughness, excellent surface finish, improved scratch resistance

Active Publication Date: 2013-01-16
GUANGZHOU SUPER CHEM COATING CO LTDGUANGZHOU SUPER CHEM COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current solvent-free self-leveling coatings generally have the defects of high hardness and high brittleness after coating.
If this kind of coating is used in floor coating, the dynamic load bearing capacity of the coating to the ground is poor, and the coating is prone to cracking. Moreover, the coating itself has poor wear resistance and scratch resistance. The surface of the floor is prone to scratches after prolonged use
In addition to seriously affecting the performance of the coating itself, the above phenomena will also cause inner layer leakage, corrosion and other phenomena, which will make the operation of the GMP workshop unable to proceed normally.

Method used

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  • Solvent-free high-elasticity epoxy self-leveling coating and preparation method thereof

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preparation example Construction

[0036] The preparation method of solvent-free highly elastic epoxy self-leveling coating of the present invention mainly comprises the following steps:

[0037] a: Weigh bisphenol A type epoxy resin, bisphenol F type epoxy resin, monofunctional epoxy reactive diluent and multifunctional epoxy reactive diluent according to the above ratio, and place them in a mixer at 500-800 Stir at room temperature and pressure for 10-20 minutes at a speed of rpm;

[0038] b: uniformly add a toughening agent to the mixture in step a, and stir for 15-30 minutes at a speed of 200-400 rpm under normal temperature and pressure;

[0039] c: Keep the mixture in step b in a stirring state of 600-1000 rpm, and evenly add wetting and dispersing agent, leveling agent and defoamer to the mixture, and stir at normal temperature and pressure for 20-30 minutes;

[0040] d: Add inorganic fillers to the mixture in step c, and stir at a speed of 2000-3000 rpm for 20-40 minutes at normal temperature and press...

Embodiment 1

[0045] The solvent-free highly elastic epoxy self-leveling coating of the present invention comprises bisphenol A type epoxy resin, monofunctional epoxy reactive diluent, multifunctional epoxy reactive diluent, toughening agent, inorganic filler, wetting and dispersing agent, fluid Leveling agent and defoamer. Wherein the bisphenol A epoxy resin is a mixture of epoxy resin E51 and epoxy resin E44; the monofunctional epoxy reactive diluent is a mixture of butyl glycidyl ether, octyl glycidyl ether and dodecyl glycidyl ether; The functional epoxy reactive diluent is a mixture of neopentyl glycol diglycidyl ether, 1,4 butanediol diglycidyl ether and dipropanol diglycidyl ether; the toughening agent is liquid nitrile rubber and carboxy-terminated nitrile rubber Mixture; the wetting and dispersing agent is EFKA5056 of Efka Company of the Netherlands; the leveling agent is a mixture of EFKA3030 of Efka Company of the Netherlands and BYK405 of BYK Company of Germany; the inorganic fi...

Embodiment 2

[0054] The solvent-free highly elastic epoxy self-leveling coating of the present invention comprises bisphenol A type epoxy resin, bisphenol F type epoxy resin, monofunctional epoxy reactive diluent, multifunctional epoxy reactive diluent, toughening agent, inorganic Filler, wetting and dispersing agent, leveling agent and defoamer. Among them, the bisphenol A type epoxy resin is epoxy resin E51; the bisphenol F type epoxy resin is epoxy resin 830; the monofunctional epoxy reactive diluent is butyl glycidyl ether, octyl glycidyl ether and dodecane Glycidyl ether mixture; polyfunctional epoxy reactive diluents are neopentyl glycol diglycidyl ether, 1,4 butanediol diglycidyl ether, dipropanol diglycidyl ether, dimethylolpropane triglycidyl ether A mixture of ether and ethylene glycol diglycidyl ether; the toughening agent is a mixture of liquid nitrile rubber, epoxy-terminated nitrile rubber and carboxyl-terminated nitrile rubber; the wetting and dispersing agent is BYK9076, BY...

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Abstract

The invention discloses a solvent-free high-elasticity epoxy self-leveling coating and a preparation method thereof. The solvent-free high-elasticity epoxy self-leveling coating is characterized by comprising the following components in part by mass: 100 parts of bisphenol A epoxy resin, 0 to 40 parts of bisphenol F epoxy resin, 10 to 30 parts of single-functional group epoxy reactive diluent, 10 to 30 parts of multi-functional group epoxy reactive diluent, 10 to 40 parts of toughening agent, 5 to 70 parts of inorganic filler, 1 to 4 parts of wetting dispersant, 2 to 3 parts of leveling agent and 1 to 3 parts of defoaming agent. The solvent-free high-elasticity epoxy self-leveling coating is strong in dynamic load bearing capacity and scratch resistance capacity.

Description

technical field [0001] The invention relates to an epoxy self-leveling paint and a preparation method thereof, in particular to a solvent-free high-elasticity epoxy self-leveling paint and a preparation method thereof. Background technique [0002] At present, clean production workshops, especially GMP workshops, have special requirements for floor coatings. First of all, the GMP workshop needs to keep the ground clean and dust-free, and the floor coating needs to have excellent dust-free performance; Easy to clean, leveling performance; in addition, the GMP workshop floor still has a good surface finish after a long period of use, so the performance requirements for floor coatings such as wear resistance and scratch resistance are also high. In the existing GMP workshop floor coatings, in order to avoid solvents from polluting the air environment in the workshop, the floor coatings usually use solvent-free self-leveling coatings. However, the current solvent-free self-lev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D7/12
Inventor 周盾白陈岳林李国荣黄佩坚马超
Owner GUANGZHOU SUPER CHEM COATING CO LTDGUANGZHOU SUPER CHEM COATING CO LTD
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