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A glass baking paint, water-based technology, used in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of low hardness and poor wear resistance, and achieve the effect of high hardness, excellent wear resistance and high gloss.
Inactive Publication Date: 2018-03-20
湖南太子化工涂料有限公司
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Problems solved by technology
[0004] The invention provides a water-based glass baking varnish to solve the problems of the existing water-based glass baking varnish on glass substrates such as adhesion, alcohol resistance, water resistance, poor abrasion resistance and low hardness.
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Embodiment 1
[0018] A water-based glass baking varnish, by weight percentage, comprises the following components: 80% of water-based resin, 0.8% of acid catalyst, 5% of pH regulator, 0.1% of thickener, 1% of cosolvent, 0.1% of wetting agent, and Membrane aid 2%, pigment 0, water 11%.
[0019] The water-based resin is a 1:1 mixture of hydroxyl acrylic resin and epoxy acrylic resin, the acid catalyst is p-toluenesulfonic acid, the pH regulator is 2-amino-2-methyl-1-propanol, and the thickener is polyurethane and The polyacrylamide is mixed at a ratio of 1:1, the cosolvent is ethylene glycol butyl ether, the wetting agent is a silicone-based wetting agent, and the film-forming aid is propylene glycol butyl ether.
Embodiment 2
[0021] A water-based glass baking varnish comprises the following components by weight percentage: 75% of water-based resin, 0.7% of acid catalyst, 3.2% of pH regulator, 0.3% of thickener, 2.6% of cosolvent, 0.5% of wetting agent, and 4% film aid, 10% pigment, 3.7% water.
[0022] The water-based resin is a 1:1 mixture of epoxy acrylic resin and melamine resin, the acid catalyst is dodecylbenzenesulfonic acid, the pH regulator is N-methylethanolamine, and the thickener is polyacrylamide and polyvinyl alcohol 1:1 Mixing, the co-solvent is a 1:1 mixture of ethylene glycol butyl ether and diethylene glycol butyl ether, the wetting agent is an acetylene glycol wetting agent, and the film-forming aid is propylene glycol methyl ether acetate.
Embodiment 3
[0024] A water-based glass baking varnish, by weight percentage, comprises the following components: 70% of water-based resin, 0.5% of acid catalyst, 4.1% of pH regulator, 0.2% of thickener, 1.5% of cosolvent, 0.6% of wetting agent, and Film aid 1.5%, pigment 5%, water 16.6%.
[0025] The water-based resin is a 1:1 mixture of melamine resin and polyamide resin, the acid catalyst is dinonylnaphthalenesulfonic acid, the pH regulator is triethanolamine, and the thickener is a 1:1:1 mixture of polyacrylamide, polyvinyl alcohol and polyacrylic acid , the cosolvent is propylene glycol dibutyl ether, the wetting agent is a silicone wetting agent, and the film-forming aid is propylene glycol butyl ether.
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Abstract
The invention discloses a waterborne glass baking varnish which is prepared from the following components in percentage by weight: 60-80 percent of waterborne resin, 0.3-0.8 percent of an acid catalyst, 0.7-5.5 percent of a pH regulator; 0.1-0.5 percent of a thickener, 1-8 percent of a cosolvent, 0.1-1 percent of a wetting agent, 1-9 percent of a film-forming additive, 0-20 percent of a pigment and 5-25 percent of water. For the waterborne glass baking varnish provided by the invention, selections and dosages of various components are comprehensively considered, and the selected waterborne resin can ensure high glossiness, high hardness and strong weatherability of a varnish film; and use of the acid catalyst can promote rapid crosslinking of matrix resin, lower the solidification temperature and increases the solidification degree. In addition, the waterborne glass baking varnish provided by the invention is non-pollution to environment, nonhazardous to an operator, strong in coatingadhesion force and good in flexibility has higher hardness, excellent abrasive resistance, water resistance, alcohol resistance and salt fog resistance and can be widely used for glass products such as winebottles and perfume bottles.
Description
technical field [0001] The invention relates to the technical field of coating chemical industry, in particular to a water-based glass baking varnish. Background technique [0002] Water-based glass baking varnishes are divided into oil-based glass baking varnishes and water-based glass baking varnishes because of their different dispersion media. Oil-based glass baking varnishes are currently the most commonly used materials in the market, and are widely used in wine bottles, perfume bottles, lighting, home decoration glass products and glass instruments, etc. Both need to be coated with a protective layer and a decorative coating on the surface, which is relatively mature and popular. When using oily glass baking varnish, more than 50% of organic solvents (toluene, xylene, industrial alcohol, etc.) need to be added. These solvents are volatile and irritating. It has a strong odor and is poisonous to the human body in varying degrees. During the production process, applicat...
Claims
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Application Information
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