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A kind of environment-friendly epoxy floor coating and its preparation method and application

An epoxy floor and coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor environmental protection performance, limited use, poor durability, etc., to meet the durability requirements, improve the feeling of difficulty, friction Strength boosting effect

Active Publication Date: 2021-01-12
SHANGHAI YANHUANG ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the use of epoxy floors in closed spaces, some epoxy floors use a large amount of organic solvents, which have poor environmental performance. At the same time, organic solvents in closed spaces are flammable and explosive, and their use is limited. The research and development of water-based epoxy floors and Difficult to apply and less durable than non-aqueous epoxy coatings

Method used

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  • A kind of environment-friendly epoxy floor coating and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] React 1 mol of polyethylene glycol (molecular weight about 10,000) with 1.2 mol of MDI in the presence of a catalyst at 80°C for 2 h to obtain a polyurethane prepolymer with NCO terminals; take 100 g of the prepolymer and react with 400 g of E44 for 3.5 h, Obtain polyurethane modified epoxy resin.

[0038] Take the above 100g of polyurethane modified epoxy resin and dissolve it in 40g of polyethylene glycol glycidyl ether, stir evenly, add 30g of silicon particles, 2g of Changzhou New Element Chemical XYS-5313 and 1g of green pigment in batches under slow stirring, and stir evenly. Pack to get A component; take 40g of maleic anhydride and 5g of ketimine and mix evenly, pack to get B component.

Embodiment 2

[0040]React 1 mol of polyethylene glycol (molecular weight about 6000) with 1.2 mol of MDI in the presence of a catalyst at 80°C for 2 hours to obtain a polyurethane prepolymer with an NCO terminal; react 100 g of the prepolymer with 400 g of E44 for 3.5 hours, Obtain polyurethane modified epoxy resin.

[0041] Take the above 100g of polyurethane modified epoxy resin and dissolve it in 40g of polyethylene glycol glycidyl ether, stir evenly, add 30g of silicon particles, 2g of Changzhou New Element Chemical XYS-5313 and 1g of green pigment in batches under slow stirring, and stir evenly. Pack to obtain component A; take 40g of maleic anhydride and 5g of ketimine and mix evenly, and package to obtain component B.

Embodiment 3

[0043] React 1 mol of polyethylene glycol (molecular weight about 3000) with 1.2 mol of MDI in the presence of a catalyst at 80°C for 2 hours to obtain a NCO-terminated polyurethane prepolymer; react 100 g of the prepolymer with 400 g of E44 for 3.5 hours, Obtain polyurethane modified epoxy resin.

[0044] Take the above 100g of polyurethane modified epoxy resin and dissolve it in 40g of polyethylene glycol glycidyl ether, stir evenly, add 30g of silicon particles, 2g of Changzhou New Element Chemical XYS-5313 and 1g of green pigment in batches under slow stirring, and stir evenly. Pack to obtain component A; take 40g of maleic anhydride and 5g of ketimine and mix evenly, and package to obtain component B.

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Abstract

The invention provides environment-friendly epoxy floor paint as well as a preparation method and an application. The paint comprises a component A and a component B, wherein the component A is prepared from 100 parts by weight of polyurethane modified epoxy resin, 10-50 parts by weight of silicone microbeads, 20-50 parts by weight of an active epoxy diluent and 1-6 parts by weight of a leveling aid; the component B is prepared from 20-50 parts by weight of a conventional curing agent and 1-8 parts by weight of a moisture curing agent. Polyethylene glycol in polyols for preparation of polyurethane in the polyurethane modified epoxy resin accounts for 60% or higher in percentage by weight; weight-average molecular weight of polyethylene glycol is 6000 or higher. According to the selection,the environment-friendly epoxy floor paint with a shear thickening effect is obtained and has excellent adhesive force and durability as well.

Description

technical field [0001] The invention relates to the field of coatings, in particular to the field of environment-friendly epoxy floor coatings, and also relates to a preparation method and application of environment-friendly epoxy floor coatings. Background technique [0002] Epoxy coatings are widely used in industry and life today, and have a large share in waterproof, anti-corrosion, anti-static and other fields. They have good adhesion and wide applicability. Among them, the application of epoxy floor coating is the most common. Epoxy floors will be laid on the cement floor of the basement floor and workshop floor to improve friction, impart functionality, and improve aesthetics. [0003] Due to the use of epoxy floors in closed spaces, some epoxy floors use a large amount of organic solvents, which have poor environmental performance. At the same time, organic solvents in closed spaces are flammable and explosive, and their use is limited. The research and development o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/63
CPCC09D175/04C09D7/61C09D7/63C08K3/36
Inventor 金美云
Owner SHANGHAI YANHUANG ENVIRONMENTAL TECH CO LTD