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Polyurethane environment-friendly waterborne wood coating and preparation method thereof

A wood coating and polyurethane technology, applied in the coating and other directions, can solve the problems of poor solvent resistance, poor stability, poor water resistance, etc., and achieve the effects of good solvent resistance, reduction of construction passes, and excellent flexibility.

Inactive Publication Date: 2018-03-20
GUANGDONG VALSPAR CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problems of poor water resistance, poor solvent resistance and poor stability of water-based polyurethane in the prior art, the invention provides a polyurethane environmental-friendly water-based wood coating and a preparation method thereof

Method used

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  • Polyurethane environment-friendly waterborne wood coating and preparation method thereof
  • Polyurethane environment-friendly waterborne wood coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present embodiment polyurethane environment-friendly water-based wood coating includes the following raw materials in parts by weight: 50 parts of modified water-based polyurethane, 15 parts of sodium citrate, 17 parts of dibutyltin dilaurate, 10 parts of polycarboxylate betaine methyl methacrylate, poly 12 parts of carbonate diol, 10 parts of hydroxyethyl cellulose, 15 parts of filler, 8 parts of defoamer, 8 parts of rheological additive, 8 parts of anti-slip agent, 10 parts of deionized water.

[0025] Among them, the modification method of the modified water-based polyurethane is: adopt 10 parts of epoxy resin, 85 parts of polyurethane dispersion, and 55 parts of acrylate, and the epoxy resin, polyurethane dispersion, and acrylate in parts by weight are evenly mixed to obtain the improved water-based polyurethane; filler is talc powder; rheological additive is associative type; slip and anti-wear agent is ultra-high molecular weight polyether modified polydimethyl...

Embodiment 2

[0032] The present embodiment polyurethane environment-friendly water-based wood coating includes the following raw materials in parts by weight: 90 parts of modified water-based polyurethane, 25 parts of sodium citrate, 25 parts of dibutyltin dilaurate, 18 parts of polycarboxybetaine methyl methacrylate, poly 20 parts of carbonate diol, 16 parts of hydroxyethyl cellulose, 30 parts of filler, 15 parts of defoamer, 15 parts of rheological additive, 15 parts of anti-slip agent, 20 parts of deionized water.

[0033] Among them, the modification method of the modified water-based polyurethane is: adopt 10 parts of epoxy resin, 85 parts of polyurethane dispersion, and 55 parts of acrylate, and the epoxy resin, polyurethane dispersion, and acrylate in parts by weight are evenly mixed to obtain the improved water-based polyurethane; the filler is a mixture of talc powder, mica powder, quartz powder, and titanium dioxide; the rheological additive is alkali-swellable; the slip and wear-...

Embodiment 3

[0040] The present embodiment polyurethane environment-friendly water-based wood coating includes the following raw materials in parts by weight: 70 parts of modified water-based polyurethane, 20 parts of sodium citrate, 21 parts of dibutyltin dilaurate, 14 parts of polycarboxybetaine methyl methacrylate, poly 16 parts of carbonate diol, 13 parts of hydroxyethyl cellulose, 22 parts of filler, 11 parts of defoamer, 12 parts of rheology additive, 11 parts of anti-slip agent, 15 parts of deionized water.

[0041] Among them, the modification method of the modified water-based polyurethane is: adopt 10 parts of epoxy resin, 85 parts of polyurethane dispersion, and 55 parts of acrylate, and the epoxy resin, polyurethane dispersion, and acrylate in parts by weight are evenly mixed to obtain the improved water-based polyurethane; filler is mica powder; rheological additives are associative, high-molecular natural polymers and minerals; slip and wear-resisting agent is ultra-high molec...

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Abstract

The invention provides polyurethane environment-friendly waterborne wood coating and a preparation method thereof and relates to the technical field of coating. The polyurethane environment-friendly waterborne wood coating provided by the invention is prepared from the following raw materials: modified waterborne polyurethane, sodium citrate, dibutyltin dilaurate, polycarboxylic acid betaine methyl methacrylate, polycarbonate diol, hydroxyethyl cellulose, filling, a de-foaming agent, a rheology auxiliary agent, a slipping-increasing wear-resisting agent and de-ionized water. The polyurethane environment-friendly waterborne wood coating adopts the modified waterborne polyurethane; the modified waterborne polyurethane is matched with other raw materials to have a common effect, so that the coating has good water resistance, solvent resistance and stability; the coating has high solid component content and a coating film is flat, full and bright. The coating can be widely applied to coating of wood base materials, such as coating of furniture, dining tables and wooden floors; the coating has the advantages of strong adhesive force, good wearing resistance, excellent flexibility, boiled water resistance, solvent resistance, color maintenance and light maintenance, good paint film leveling property, low total content of volatile organic compounds and the like.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a polyurethane environmental protection water-based wood coating and a preparation method thereof. Background technique [0002] Wood coatings are an important part of the coatings industry. They refer to coatings used for equipment prepared from raw materials such as solid wood panels, wood grain panels, bakelite boards, and fiberboards. They are mainly suitable for furniture, floors, stationery, musical instruments, and building decoration materials. . At present, water-based polyurethane coatings that combine high performance and low VOC content can effectively control the composition and structure of coatings due to the cutting properties of polyurethane molecules, combined with new synthesis and cross-linking technologies, so that they have good low-temperature film-forming properties , high temperature resistance, high strength, wear resistance, environmental protection, ...

Claims

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Application Information

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IPC IPC(8): C09D4/06C09D4/02C09D7/65C09D7/61C09D7/63
CPCC09D4/06
Inventor 黄宏亭高平黄远明张海军
Owner GUANGDONG VALSPAR CHEM IND