A kind of water-based composite baking varnish for photo frame

A water-based, photo frame technology, applied in the field of baking paint, which can solve the problems of insufficient water resistance and adhesion, peeling or blistering, etc.

CN105368209BActive Publication Date: 2018-05-11驻马店市阳光舒适家暖通设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-05-11

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Abstract

The invention discloses waterborne compound stoving varnish for photo frames. The stoving varnish is prepared from a component A and a component B in a mass ratio of 1:(2-3), wherein the component A is prepared from the following raw materials: polyacrylic resin, polyhydroxy unsaturated polyester resin, polyacrylamide resin, titanium dioxide, adhesion promoter, ethylene glycol monobutyl ether, nanosized zinc carbonate, a wetting agent, a defoaming agent, a dispersing agent and deionized water; and the component B is prepared from the following raw materials: polyacrylic resin, a curing agent, a flatting agent and deionized water. The waterborne compound stoving varnish for photo frames has the advantages of water resistance, excellent dryness and excellent adhesion for the surface of a metal photo frame.
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Description

technical field

[0001] The invention relates to the technical field of baking varnish, in particular to a water-based composite baking varnish for photo frames. Background technique

[0002] Acrylic coatings have high hardness, excellent gloss and chemical resistance after film formation, and are low in cost, and are widely used in the automotive, construction and furniture industries. Traditional solvent-based acrylic paints release a large amount of volatile organic compounds during the film-forming process, causing pollution to the environment. However, the performance of water-based acrylic coatings is insufficient. The hardness of the coating film is low, and the water resistance and adhesion are poor, which hinders its development.

[0003] Amino / acrylic baking varnish is prepared by adding melamine resin to hydroxyacrylic paint, which can be widely used for decoration on the surface of photo frames. This kind of amino / acrylic baking paint is widely used on the surfa...

Examples

Embodiment 1

[0022] In this embodiment, a kind of water-based composite baking varnish for photo frame is composed of two components A and B with a mass ratio of 1:2; wherein,

[0023] The raw materials of component A include by weight: 55 parts of polyacrylic resin, 35 parts of polyhydroxy unsaturated polyester resin, 10 parts of polyacrylamide resin, 55 parts of titanium dioxide, 3 parts of adhesion promoter, ethylene glycol mono 8 parts of butyl ether, 1 part of nano-zinc carbonate, 1.5 parts of wetting agent, 0.5 parts of defoamer, 1 part of dispersant, 20 parts of deionized water;

[0024] The raw materials of component B include by weight: 15 parts of polyacrylic resin, 15 parts of curing agent, 0.5 parts of leveling agent, and 30 parts of deionized water;

[0025] The preparation method of the polyhydroxy unsaturated polyester resin comprises: carrying out a melt polycondensation reaction of dibasic acid and polyol with a molar ratio of 1:1 at 240° C., when the viscosity of the reac...

Embodiment 2

[0028] In the present embodiment, a kind of water-based composite baking varnish for photo frame is composed of two components A and B with a mass ratio of 1:3; wherein,

[0029] The raw materials of component A include by weight: 75 parts of polyacrylic resin, 15 parts of polyhydroxy unsaturated polyester resin, 20 parts of polyacrylamide resin, 35 parts of titanium dioxide, 10 parts of adhesion promoter, ethylene glycol mono 2 parts of butyl ether, 3 parts of nano-zinc carbonate, 0.5 parts of wetting agent, 1 part of defoamer, 0.5 parts of dispersant, 45 parts of deionized water;

[0030] The raw materials of component B include by weight: 25 parts of polyacrylic resin, 7 parts of curing agent, 1 part of leveling agent, and 10 parts of deionized water;

[0031] The preparation method of the polyhydroxy unsaturated polyester resin comprises: carrying out a melt polycondensation reaction of dibasic acid and polyhydric alcohol with a molar ratio of 1:1.8 at 210°C, when the visc...

Embodiment 3

[0034] In the present embodiment, a kind of water-based composite baking varnish for photo frame is composed of two components A and B with a mass ratio of 1:2.5; wherein,

[0035]The raw materials of component A include by weight: 60 parts of polyacrylic resin, 30 parts of polyhydroxy unsaturated polyester resin, 12 parts of polyacrylamide resin, 50 parts of titanium dioxide, 5 parts of adhesion promoter, ethylene glycol mono 6 parts of butyl ether, 1 part of nano zinc carbonate, 1.2 parts of wetting agent, 0.7 parts of defoamer, 0.8 parts of dispersant, 30 parts of deionized water;

[0036] The raw materials of component B include by weight: 18 parts of polyacrylic resin, 12 parts of curing agent, 0.7 parts of leveling agent, and 25 parts of deionized water;

[0037] The preparation method of the polyhydroxy unsaturated polyester resin comprises: carrying out a melt polycondensation reaction of dibasic acid and polyol with a molar ratio of 1:1.4 at 225°C, when the viscosity ...