Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Epoxy resin modified polyurethane anticorrosive water-based paint and preparation method thereof

A technology of epoxy resin and water-based coatings, applied in polyurea/polyurethane coatings, anti-corrosion coatings, coatings, etc., can solve problems such as increased process route costs, acetone needs to be recycled, and single application range, so as to improve structural stability and Effects of mechanical properties, increasing chemical crosslinking density, and reducing VOC content

Inactive Publication Date: 2019-07-30
广西经正科技开发有限责任公司
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, some people use isocyanate and polyester polyol to synthesize polyurethane prepolymer first, and then add additives, filler stirring, ball milling and other processes to make polyurethane water-based coatings. However, traditional polyurethane water-based coatings have general performance and a single application range. Modification of polyurethane can improve the mechanical properties of water-based coatings, but one-component epoxy resin modified polyurethane water-based coatings have low storage stability and are easy to cure
CN201710580899.2 epoxy-modified waterborne polyurethane coating and its preparation method and CN20181047999000.7 a kind of epoxy resin modified polyurethane waterproof coating and its preparation method all add acetone, but acetone needs to be recycled, and the recovery rate is low, it is difficult to Repeated use, which will lead to increased routing costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of epoxy resin modified polyurethane anticorrosion water-based coating, the component of described coating is:

[0040] Polypropylene glycol 18.37g

[0041] Isophorone diisocyanate 17.33g

[0042] Dibutyltin dilaurate 0.05g

[0043] 2,2-Dimethylolpropionic acid 2.00g

[0044] Trihydroxypropane 1.00g

[0045] Epoxy resin E-44 3.25g

[0046] 1,4-butanediol 2.50g

[0047] Triethylamine 1.05g

[0048] Ethylenediamine 0.75g

[0049] N-Methylpyrrolidone 8.22g

[0050] Deionized water 37.50g

[0051] Nano silica 2.50g

[0052] Butyl Carbitol 1.00g

[0053] Silane coupling agent KH-500 1.25g

[0054] BYK-307 0.50g

[0055] Foamaster309A 0.50g

[0056] LOPON P 0.25g.

Embodiment 2

[0058] A kind of epoxy resin modified polyurethane anticorrosion water-based coating, the component of described coating is:

[0059] Polypropylene glycol 19.31g

[0060] Isophorone diisocyanate 18.67g

[0061] Dibutyltin dilaurate 0.075g

[0062] 2,2-Dimethylolpropionic acid 2.75g

[0063] Trihydroxypropane 1.25g

[0064] Epoxy resin E-44 3.75g

[0065] 1,4-butanediol 3.25g

[0066] Triethylamine 1.45g

[0067] Ethylenediamine 1.13g

[0068] N-Methylpyrrolidone 11.82g

[0069] Deionized water 50.00g

[0070] Nano silica 3.00g

[0071] Propylene glycol n-butyl ether 1.25g

[0072] Silane coupling agent KH-550 1.38g

[0073] BYK-333 0.75g

[0074] FoamasterH 0.75g

[0075] LOPON LF 0.38g.

Embodiment 3

[0077] A kind of epoxy resin modified polyurethane anticorrosion water-based coating, the component of described coating is:

[0078] Polypropylene glycol 20.24g

[0079]Isophorone diisocyanate 20.01g

[0080] Dibutyltin dilaurate 0.10g

[0081] 2,2-Dimethylolpropionic acid 3.50g

[0082] Trihydroxypropane 1.50g

[0083] Epoxy resin E-44 4.25g

[0084] 1,4-butanediol 4.00g

[0085] Triethylamine 1.84g

[0086] Ethylenediamine 1.50g

[0087] N-Methylpyrrolidone 15.42g

[0088] Deionized water 62.50g

[0089] Nano silica 3.50g

[0090] Propylene glycol n-butyl ether 1.50g

[0091] Silane coupling agent KH-570 1.50g

[0092] BYK-341 1.00g

[0093] Foamaster60 1.00g

[0094] LOPON 89 0.50g.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
epoxy valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of paint processing, in particular to an epoxy resin modified polyurethane anticorrosive water-based paint and a preparation method thereof. The paint comprises polypropylene glycol, isophorone diisocyanate, dibutyltin dilaurate, 2,2-dimethylolpropionic acid, trihydroxypropane, epoxy resin, 1,4-butanediol, triethylamine, ethylenediamine, N-methylpyrrolidone, deionized water, a filler and an auxiliary. The method utilizes trimethylolpropane to assist cross-linking, and improves the chemical cross-linking density of the paint, thereby improving the structural stability and mechanical properties of the paint film; acetone is not added, it is not necessary to distill an emulsion to recover a solvent, the VOC content is reduced, the energy consumption is reduced, and a silane coupling agent is directly added to the epoxy resin modified polyurethane paint according to the paint formulation, which significantly improves the adhesion of the paint layer to a substrate.

Description

technical field [0001] The invention relates to the technical field of paint processing, in particular to an epoxy resin modified polyurethane anti-corrosion water-based paint and a preparation method thereof. Background technique [0002] At present, some people use isocyanate and polyester polyol to synthesize polyurethane prepolymer first, and then add additives, filler stirring, ball milling and other processes to make polyurethane water-based coatings. However, traditional polyurethane water-based coatings have general performance and a single application range. Modification of polyurethane can improve the mechanical properties of water-based coatings, but one-component epoxy resin modified polyurethane water-based coatings have low storage stability and are easy to cure. CN201710580899.2 epoxy-modified waterborne polyurethane coating and its preparation method and CN20181047999000.7 a kind of epoxy resin modified polyurethane waterproof coating and its preparation meth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D5/08C09D7/61C09D7/63C08G18/75C08G18/66C08G18/58C08G18/48C08G18/32C08G18/34
CPCC08G18/0823C08G18/12C08G18/348C08G18/4825C08G18/6692C08G18/755C08K2201/011C09D5/08C09D175/08C08G18/6517C08G18/3206C08G18/3228C08K3/36C08K5/544C08K5/5425
Inventor 黄映恒王露甲何灿梁瑶莹农毅
Owner 广西经正科技开发有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com