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A kind of high-hardness wear-resistant water-based baking varnish and preparation method thereof

A high-hardness, water-based technology, applied in biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., can solve the problems of insufficient performance of potassium hexatitanate whisker enhancement and friction resistance. Achieve the effect of improving compatibility and combination, improving hardness and wear resistance, and strengthening effect

Active Publication Date: 2020-11-06
GUANGZHOU UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the potassium hexatitanate whiskers were not subjected to surface treatment but were directly put into the coating material, the reinforcing effect and friction resistance of the potassium hexatitanate whiskers could not be fully reflected.

Method used

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  • A kind of high-hardness wear-resistant water-based baking varnish and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] Raw material preparation: surface modified whiskers are prepared by the following method, surface modified whiskers are surface modified tetrapod-shaped zinc oxide whiskers, surface modified potassium hexatitanate whiskers, wherein the preparation of surface modified tetrapod-shaped zinc oxide whiskers Including: (1) Coating of tetraacicular zinc oxide whiskers: Accurately weigh 9 grams of tetraacicular zinc oxide whisker powder and disperse in 100 ml of deionized water, ultrasonically disperse for 30 minutes to obtain tetraacicular zinc oxide Whisker dispersion; (2) transfer the four-needle zinc oxide whisker dispersion to a constant temperature water bath of 80°C, slowly add 0.1mol / L Na2SiO3 solution 167 milliliters dropwise under uniform stirring, and use 1%wt H2SO4 solution to adjust the pH of the solution, control the pH of the solution to be 9-10, and after 2 hours of heat preservation and aging, filter, wash, and dry to obtain silicon-coated four-acicular zinc oxi...

Embodiment 2

[0030] Raw material preparation: surface modified whiskers are prepared by the following method, surface modified whiskers are surface modified tetrapod-shaped zinc oxide whiskers, surface modified potassium hexatitanate whiskers, wherein the preparation of surface modified tetrapod-shaped zinc oxide whiskers include:

[0031] (1) Coating of tetraacicular zinc oxide whiskers: Accurately weigh 10 grams of tetraacicular zinc oxide whisker powder and disperse in 100 ml of deionized water, and ultrasonically disperse for 30 minutes to obtain tetraacicular zinc oxide whiskers Dispersion solution; (2) transfer the four-needle zinc oxide whisker dispersion solution to a constant temperature water bath of 80°C, slowly add 0.1mol / L Na2SiO3 solution 180 milliliters dropwise under uniform stirring, and adjust the solution with 1wt% H2SO4 solution The pH value of the control solution is 9-10. After heat preservation and aging for 2 hours, filter, wash, and dry to obtain silicon-coated te...

Embodiment 3

[0034] Raw material preparation: surface modified whiskers are prepared by the following method, surface modified whiskers are surface modified tetrapod-shaped zinc oxide whiskers, surface modified potassium hexatitanate whiskers, wherein the preparation of surface modified tetrapod-shaped zinc oxide whiskers Including: (1) Coating of tetraacicular zinc oxide whiskers: Accurately weigh 10 grams of tetraacicular zinc oxide whisker powder and disperse in 100 ml of deionized water, ultrasonically disperse for 30 minutes to obtain tetraacicular zinc oxide Whisker dispersion; (2) transfer the four-needle zinc oxide whisker dispersion to a constant temperature water bath of 80°C, slowly add 0.1mol / L Na2SiO3 solution 167 milliliters dropwise under uniform stirring, and use 1wt% H2SO4 solution Regulate the pH of the solution, control the pH of the solution to be 9-10, and then filter, wash and dry the solution to obtain silicon-coated four-acicular zinc oxide whiskers; (3) accurately w...

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Abstract

The invention discloses a high-hardness wear-resistant water-based baking varnish, which comprises the following components in weight percent: 20% to 50% of water-based organic silicon modified acrylic resin, 5% to 20% of etherified melamine formaldehyde resin, and epoxy phosphate 2 %~5%, surface modification whisker 1.5%~18%, bentonite 0.1%~3%, anti-settling agent 0.1%~2%, silicone defoamer 0.08%~0.5%, deionized water balance. The invention also discloses a preparation method of the high-hardness wear-resistant water-based baking varnish. In the present invention, the four-needle zinc oxide whisker and potassium hexatitanate whisker are modified by a silane coupling agent on the surface, and water-based organosilicon-modified acrylic resin and other raw materials are mixed to utilize the four-needle zinc oxide whisker and hexatitanate Potassium whiskers are synergistically strengthened, and the obtained water-based baking varnish has the characteristics of high hardness, high wear resistance and self-cleaning of the paint film. excellent.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a high-hardness wear-resistant water-based baking varnish and a preparation method thereof. Background technique [0002] The development of the paint industry must comply with the "three prerequisites" of "energy, resources, and pollution-free" and the "four E principles" of "economy, ecology, efficiency, and energy." Oil-based paints have gradually withdrawn from the stage of history, and water-based paints have gradually entered into our lives. Water-based acrylic paint is a common water-based paint, which is widely used in many fields such as locomotives, ships, containers, bridges, and military industries. However, the water resistance, mechanical properties, thermal stability and electrochemical properties of single resin coatings are poor, so it needs to be modified to improve its comprehensive performance. [0003] Tetraacicular zinc oxide whisker is the on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D5/16C09D7/61C09D7/62C09D7/63C09D7/65
CPCC08L2201/08C09D5/1687C09D143/04C08L61/32C08K9/00C08K9/10C08K7/08C08K3/346
Inventor 刘自力刘华溪郑文芝刘晓国左建良刘奎良曹思娟陈站
Owner GUANGZHOU UNIVERSITY
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