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Preparation method of high abrasion water-borne wood coating

A technology of wood coatings and high wear resistance, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of insufficient flexibility, limitations, and poor anti-powdering performance, and achieve the goal of reducing pollution and improving tensile strength Effect

Inactive Publication Date: 2010-11-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flexibility of the water-based epoxy film after film formation is not enough, and the aging resistance and anti-powdering performance are not good, which limits its application in high-end fields.

Method used

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  • Preparation method of high abrasion water-borne wood coating
  • Preparation method of high abrasion water-borne wood coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh the following raw materials by mass:

[0031] Take 18g of epoxy resin, 1.5g of surfactant, mix, heat until completely dissolved, cool down to 75-85°C, add 3g of polyamine, react at 100°C for 1 hour, cool down naturally to 80°C, add 4.5g of Water and the ether solution of the epoxy resin block copolymer of 3g, stir evenly, obtain nonionic water-based epoxy curing agent.

[0032] Take 15g of non-ionic water-based epoxy curing agent as component B of the coating, take 55g of polyurethane modified water-based epoxy dispersant, 3g of nanomaterial aqueous solution, 6g of diethylene glycol ether, and 1g of isothiazolinone for sterilization and anticorrosion 4g of wax emulsion and 10g of water were mixed evenly under the conditions of room temperature and rotating speed of 1000 rpm, adding a pH regulator to adjust the pH of the mixture to about 8.5, dispersing the mixed solution to below 15 mesh, and adding 0.2g of disinfectant Foaming agent, 3g of dispersant, 0.5g of we...

Embodiment 2

[0035] Weigh the following raw materials by mass:

[0036] Take 18g of epoxy resin, 1.5g of surfactant, mix, heat until completely dissolved, cool down to 75-85°C, add 3g of polyamine, react at 100°C for 1 hour, cool down naturally to 80°C, add 4.5g of Water and the ether solution of the epoxy resin block copolymer of 3g, stir evenly, obtain nonionic water-based epoxy curing agent.

[0037] Take 17g of non-ionic water-based epoxy curing agent as component B of the coating, take 60g of polyurethane modified water-based epoxy dispersant, 4g of nanomaterial aqueous solution, 6g of diethylene glycol ether, and 1g of isothiazolinone for sterilization and anticorrosion 4g of wax emulsion and 6g of water were mixed evenly under the conditions of room temperature and rotating speed of 1000 r / min, adding a pH regulator to adjust the pH of the mixture to about 8.5, dispersing the mixed solution to below 15 mesh, and adding 0.2g of disinfectant Foaming agent, 3g of dispersant, 0.5g of w...

Embodiment 3

[0040] Weigh the following raw materials by mass:

[0041] Mix 18g of epoxy resin and 1.5g of surfactant, heat until completely dissolved, cool down to 75-85°C, add 3g of polyamine, react at 100°C for 1 hour, naturally cool down to 80°C, add 4.5g of water And the ether solution of the epoxy resin block copolymer of 3g, stir, obtain nonionic water-based epoxy curing agent.

[0042] Take 20g of non-ionic water-based epoxy curing agent as component B of the coating, take 55g of polyurethane modified water-based epoxy dispersant, 4g of nanomaterial aqueous solution, 6g of diethylene glycol ether, and 1g of isothiazolinone for sterilization and anticorrosion 4g of wax emulsion and 5g of water were mixed evenly under the conditions of room temperature and rotating speed of 1000 rpm, adding a pH regulator to adjust the pH of the mixture to about 8.5, dispersing the mixed solution to below 15 mesh, and adding 0.2g of disinfectant Foaming agent, 3g of dispersant, 0.5g of wetting and l...

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Abstract

The invention belongs to the technical field of coating synthesis, in particular to a preparation method of a high abrasion water-borne wood coating, which comprises the following steps: firstly, using epoxy resin and polyamine to prepare a self-emulsifying water-borne epoxy resin curing agent; and then adding related additive and nano material water solution in polyurethane modified epoxy emulsion, and dispersing at high speed; and finally, blending the prepared curing agent and uniformly dispersed mixture to prepare the product. The invention fully utilizes and combines the advantages of epoxy resin, polyurethane, wax emulsion and inorganic nano-materials, and the obtained product achieves the standard through performance measurement; and the cost is substantially reduced in the experiment process, and the coating has no pollution to the environment, saves energy, and has greater application prospect in the filed of wood coatings.

Description

technical field [0001] The invention belongs to the technical field of coating synthesis, and in particular relates to a preparation method of a high wear-resistant water-based wood coating. Background technique [0002] Today's world vigorously advocates green economy and attaches great importance to environmental protection, so research on low-VOC or zero-VOC water-based coatings is an important direction of current coatings research. [0003] As a coating matrix resin, water-based epoxy has the advantages of high hardness and tensile strength after curing, high gloss of the coating film, good adhesion to various substrates, excellent chemical resistance, good electrical insulation and various varieties, etc. It has been widely used in steel structure, wood and other fields. However, the flexibility of the water-based epoxy film after film formation is not enough, and the aging resistance and anti-powdering performance are not good, which limits its application in high-en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D187/00C09D163/00C09D7/12
Inventor 任天斌蒋媛媛孙永尹雪梅
Owner TONGJI UNIV
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