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Novel environment-friendly type water-based glass baking paint and preparation method thereof

A glass baking paint, water-based technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of easy peeling, unevenness and low surface free energy of the paint layer, and achieve improved glass adhesion, good paint film performance, The effect of improving performance

Inactive Publication Date: 2018-12-11
ZHONGSHAN BRITE DAY COATING RAW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when water-based coatings are applied in the field of glass paints, since water-based glass paints mostly use water-based acrylic resins as film-forming resins, and the glass surface is smooth and the surface free energy is low, ordinary water-based acrylic resins have poor adhesion to glass. Layers come off easily
In addition, the wettability of water-based coatings to glass substrates is not good. When the viscosity of the coating is low or the paint film is applied too thickly, the paint film tends to flow downward, resulting in defects such as excessive thickness and unevenness of the lower edge and bottom surface.

Method used

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  • Novel environment-friendly type water-based glass baking paint and preparation method thereof
  • Novel environment-friendly type water-based glass baking paint and preparation method thereof
  • Novel environment-friendly type water-based glass baking paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] a) Preparation of color paste: Weigh the raw materials according to pigment: dispersant: water mixing = 4:1:8, first stir the water and dispersant evenly, then add the pigment, set the speed at 2500r / min, grind and disperse for 30min. Then scrape the fineness, control the fineness ≤ 10 μm, and prepare the color paste for later use;

[0030] b) Add 30 parts of epoxy hydrocarbyl silane modified acrylic resin, 10 parts of water-based hydroxyl acrylic resin, 10 parts of hexamethoxymethylmelamine formaldehyde resin, 0.3 part of wetting agent and 0.01 part of aminopolyether silicone defoamer in sequence In the mixing equipment, pre-stir for 15 minutes at a speed of 500r / min;

[0031] c) At a speed of 500r / min, add 0.8 parts of γ-(2,3 glycidoxy)propyltrimethoxysilane, 4 parts of co-solvent, 0.4 parts of leveling agent, 0.7 parts of pH regulator, color Mix 8 parts of slurry, 4 parts of water and 0.01 part of amino polyether silicone defoamer, continue to stir for 20 minutes un...

Embodiment 2

[0033] a) Preparation of color paste: Weigh the raw materials according to pigment: dispersant: water mixing = 3:1:6, first stir the water and dispersant evenly, then add the pigment, set the speed at 2000 / min, grind and disperse for 30 minutes. Then scrape the fineness, control the fineness ≤ 10 μm, and prepare the color paste for later use;

[0034] b) Defoaming 25 parts of methacryloxyalkylsilane modified acrylic resin, 15 parts of water-based hydroxyacrylic resin, 13 parts of methylated melamine formaldehyde resin, 0.1 part of wetting agent and polyether grafted polysiloxane Add 0.02 parts of the agent to the stirring equipment in turn, and pre-stir for 15 minutes at a speed of 500r / min;

[0035] c) At a speed of 500r / min, add 2 parts of γ-(2,3 glycidoxy)propyltrimethoxysilane, 8 parts of co-solvent, 0.5 parts of leveling agent, 0.5 parts of pH regulator, color 13 parts of slurry, 10 parts of water and 0.01 part of polyether-grafted polysiloxane defoamer, continue to stir...

Embodiment 3

[0037] a) Preparation of color paste: Weigh the raw materials according to pigment: dispersant: water mixing = 5:1:10, first stir the water and dispersant evenly, then add the pigment, set the speed at 3000 / min, grind and disperse for 30 minutes. Then scrape the fineness, control the fineness ≤ 10 μm, and prepare the color paste for later use;

[0038] b) 35 parts of methacryloxyalkylsilane modified acrylic resin, 5 parts of water-based hydroxyacrylic resin, 5 parts of hexamethoxymethylmelamine formaldehyde resin, 0.5 part of wetting agent and 0.01 part of polyether silicone defoamer Parts are added to the stirring equipment in turn, and pre-stirred for 15 minutes at a speed of 500r / min;

[0039] c) At a speed of 500r / min, add 0.5 parts of γ-(2,3 glycidoxy)propyltrimethoxysilane, 8 parts of cosolvent, 0.2 parts of leveling agent, 0.9 parts of pH regulator, color 7 parts of slurry, 3 parts of water and 0.02 parts of polyether silicone defoamer, continue to stir for 15 minutes ...

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Abstract

The invention relates to a novel environment-friendly type water-based glass baking paint. The novel environment-friendly type water-based glass baking paint is prepared from the following componentsaccording to a proportional ratio by weight: 25 to 35 parts of organosilicone modified acrylic resin, 5 to 15 parts of water-based hydroxy acrylic resin, 5 to 15 parts of water-based polyurethane resin, 0.5 to 2 parts of organosilane adhesion promoter, 1 to 10 parts of cosolvent, 0.1 to 0.5 part of flatting agent, 0.1 to 0.5 part of wetting agent, 0.5 to 1 part of pH (potential of hydrogen) regulator, 0.01 to 0.03 part of defoaming agent, 5 to 15 parts of color paste, and 1 to 10 parts of water. The invention also provides a preparation method of the novel environment-friendly type water-basedglass baking paint. The novel environment-friendly type water-based glass baking paint has the advantages that the adhesion force is high, and the wetting property, water-resistant property, weather-resistant property and other comprehensive properties are stronger; the preparation technology is simple, and is suitable for being widely popularized and applied.

Description

technical field [0001] The invention relates to the technical field of glass varnishes, in particular to a novel environmentally friendly water-based glass baking varnish with high adhesion and a preparation method thereof. Background technique [0002] Glass is a material with high hardness, cleanliness, non-toxicity, corrosion resistance and aging resistance, and has been widely used in architectural decoration, household daily necessities and other fields. In the contemporary glass industry, in order to improve the appearance of glass products (such as glass instruments, colored decorative glass products and lenses, etc.) and improve the decorative effect, manufacturers often use glass coatings or inks to coat the glass surface. In recent years, water-based coatings have begun to be used in glass coatings due to the advantages of low organic substance emission (VOC), good construction performance, better UV radiation resistance, small color change, and long service life. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/04C09D161/32C09D7/63C03C17/28
CPCC03C17/006C03C17/28C03C2217/40C03C2218/112C03C2218/114C09D7/63C09D133/00C09D143/04C08L75/04C08L61/32C08K5/5435
Inventor 麦基民谭佑华谭远
Owner ZHONGSHAN BRITE DAY COATING RAW MATERIALS
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