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Water-based high-wear-resistance high-hardness and high-scratch-resistance core-shell structure wax emulsion and preparation method thereof

A core-shell structure, high wear-resistant technology, used in wax coatings, coatings, etc., can solve the problems of no surface hardness, low hardness, poor hardness, etc., to improve wear resistance and feel, low cost, and improved The effect of abrasion resistance

Active Publication Date: 2022-02-18
江西省龙海化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of wax dispersions mostly uses waxes to be emulsified and stabilized by surfactants such as emulsifiers to form wax dispersions. Since the hardness of wax itself is not high, compared with inorganic materials, the hardness is too far behind. At present, wax emulsion can only improve the slipperiness to improve scratch resistance and wear resistance, but it does not help the surface hardness of the paint film, and may even have negative effects

Method used

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  • Water-based high-wear-resistance high-hardness and high-scratch-resistance core-shell structure wax emulsion and preparation method thereof
  • Water-based high-wear-resistance high-hardness and high-scratch-resistance core-shell structure wax emulsion and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A water-based high-abrasion-resistant, high-hardness, high-scratch-resistant core-shell structure wax emulsion, including the following raw materials in parts by weight: 20 parts of wax monomer, 1 part of coupling agent, 0.5 part of emulsifier, 50 parts of deionized water and nano inorganic dispersion Body 10 parts.

[0029] The wax monomer is a mixture of polyethylene wax, oxidized polyethylene wax, oxidized paraffin wax and EVA wax in a weight ratio of 0.8:0.4:0.6:0.1, wherein the oxidized polyethylene wax has a melting point of 138°C. Polyethylene wax OA6.

[0030] The coupling agent is silane coupling agent KH550. The emulsifier is isomeric tridecanol polyoxyethylene ether 5EO-50EO.

[0031] The nano-inorganic dispersion is a mixture of modified alumina with a particle size of 10nm and silicon dioxide with a particle size of 10nm at a weight ratio of 0.8:0.6.

[0032] The modified alumina includes the following raw materials in parts by weight: 5 parts of modifie...

Embodiment 2

[0039] A water-based high-abrasion-resistant, high-hardness, high-scratch-resistant core-shell structure wax emulsion, including the following raw materials in parts by weight: 30 parts of wax monomer, 2 parts of coupling agent, 5 parts of emulsifier, 60 parts of deionized water and nano inorganic dispersion Body 20 parts.

[0040] The wax monomer is a mixture of polyethylene wax, oxidized polyethylene wax, oxidized paraffin wax and EVA wax in a weight ratio of 0.92:0.5:0.7:0.2, wherein the oxidized polyethylene wax is oxidized with a melting point of 138°C. Polyethylene wax OA6.

[0041] The coupling agent is silane coupling agent KH560. The emulsifier is stearyl polyoxyethylene ether 25EO.

[0042] The nano-inorganic dispersion is a mixture of modified alumina with a particle size of 200nm and silicon dioxide with a particle size of 200nm at a weight ratio of 0.9:0.7.

[0043] The modified alumina includes the following raw materials in parts by weight: 6 parts of modifie...

Embodiment 3

[0050] A water-based high-abrasion-resistant, high-hardness, high-scratch-resistant core-shell structure wax emulsion, including the following raw materials in parts by weight: 40 parts of wax monomer, 3 parts of coupling agent, 10 parts of emulsifier, 75 parts of deionized water and nano inorganic dispersion Body 30 parts.

[0051] The wax monomer is a mixture of polyethylene wax, oxidized polyethylene wax, oxidized paraffin wax and EVA wax in a weight ratio of 1.0:0.6:0.8:0.3, wherein the oxidized polyethylene wax has a melting point of 138°C. Polyethylene wax OA6.

[0052] The coupling agent is titanate coupling agent T-238S. The emulsifier is polyoxyethylene lauryl ether.

[0053] The nano-inorganic dispersion is a mixture of modified alumina with a particle size of 400nm and silicon dioxide with a particle size of 400nm at a weight ratio of 1.0:0.8.

[0054] The modified alumina includes the following raw materials in parts by weight: 7 parts of modifier, 25 parts of a...

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Abstract

The invention relates to the technical field of water-based wax dispersions, in particular to a water-based high-wear-resistance high-hardness and high-scratch-resistance core-shell structure wax emulsion and a preparation method thereof, and the water-based high-wear-resistance high-hardness and high-scratch-resistance core-shell structure wax emulsion comprises the following raw materials in parts by weight: 20-60 parts of wax monomers, 1-5 parts of a coupling agent, 0.5-20 parts of an emulsifier, 50-100 parts of deionized water and 10-50 parts of a nano inorganic dispersion. The core-shell structure wax emulsion is of the core-shell structure, the VOC emission of the wax emulsion in the preparation process is zero, the application is simple, the particle size distribution is uniform, and the effect is good, and in the product, the wax monomer and the inorganic nano dispersion react under the action of the emulsifier and the coupling agent to form a wax solution with a special structure taking the inorganic nano particles as the core and the wax monomer as the shell, the nano inorganic dispersion is used as a support, and the wear resistance and the hand feeling of the wax are improved, so that the wear resistance, the scratch resistance and the hardness of a paint film utilizing the wax can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of water-based wax dispersions, in particular to a water-based high-abrasion-resistant, high-hardness, high-scratch-resistant core-shell structure wax emulsion and a preparation method thereof. Background technique [0002] In the paint and coatings industry, natural and synthetic wax additives play an important role in the performance qualities of the product, contribute to the surface properties of the final coated product, improved coating integrity and surface appearance, and aid in coating Downstream processing of products and extending their useful life. Although constituting only a small portion of a formulation, additives can achieve significant improvements in the performance of the entire formulation at low dosage and cost, thereby providing enhanced product performance and value. As performance requirements for surface modifiers continue to increase, end users in these industries also continue to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/06C09D123/30C09D191/06C09D123/08C09D7/61C09D7/62C09D7/63
CPCC09D123/06C09D7/61C09D7/62C09D7/63C08K2003/2227C08L23/30C08L91/06C08L23/0853C08K5/544C08K3/36C08K9/04C08K9/08C08K3/22
Inventor 巴于磊
Owner 江西省龙海化工有限公司
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