One, base resin (main film-forming substance)

Is the pigment, filler together, forming a homogeneous dense coating on a substrate, formed by photocurable coating.

Natural resin

Natural resin mainly came from plant infiltration (urinary) extract amorphous semi-solid or solid organic matter. When heated, softened, and melting, should be in the flow tendency under the action of force, generally do not dissolve in water, soluble in alcohol, ether and other organic solvents, and ketones. This kind of material variety, derived from plants, mainly rosin, lacquer, amber and Ma resin; comes from the animal, it is mainly a shellac, lac insect secretions.

Phenolic resin phenolic (Phenol Formaledlyde, referred to as PF) is also called bakelite resin, also known as bakelite powder. Originally a colorless or yellowish brown transparent material, market sales often add colorant and red, yellow, black, green, brown, blue and other colors, particles, powder. Resistance to weak acid and weak base, case of strong acid decompose, encounter alkali corrosion. Insoluble in water, soluble in acetone, alcohol and other organic solvents. Phenol aldehyde condensation and or its derivatives.

Alkyd resin

 A polyol, phthalic anhydride and two fatty acid or oil (glycerol and three fatty acid ester) condensation polymerized oil modified polyester resin. According to the fatty acid (or oil) and the number of double bonds in the molecular structure, can be divided into dry, semi dry and dry three types of non.

 
Nitro cellulose

Three free hydroxyl containing each glucose unit of cellulose molecules, with concentrated nitric acid and concentrated sulfuric acid treatment, can be transformed into nitro cellulose.

 
Amino resin
General resin amino resin by compound and a formaldehyde containing amino condensation from the important resin, urea formaldehyde resin (UF), melamine formaldehyde resin (MF) and polyamide polyamine epichlorohydrin (PAE) etc..

 
Polyester resin

Polyester resin is unsaturated polyester adhesive referred to as. Unsaturated polyester adhesive is mainly composed of unsaturated polyester resin, initiator, accelerator, filler, thixotropic agent etc..

 
Polyurethane resin
An isocyanate (monomer) and hydroxyl compounds polymerized. Because of the strong base containing carbamate polar, insoluble in nonpolar groups, with good oil resistance, toughness, wear resistance, aging resistance and adhesion. With different materials can be made to adapt to a wide temperature range (50 to 150 DEG C) materials, including an elastomer, thermoplastic resin, thermosetting resin. High temperature resistant to hydrolysis, is not high in alkaline medium.

 
Acrylic resin
Acrylic resin is composed of acrylate and methyl acrylate and other olefinic resin monomer copolymerization, by selecting different resin structure, different formulations, production process and solvent composition, synthesis of different types and different properties and different applications of acrylic acid resin, acrylic resin according to the differences in the structure and mechanism of membrane formation. It can be divided into thermoplastic acrylic resin and thermosetting acrylic resin.

Two, solvent
The film is dissolved or dispersed into a uniform and stable liquid dispersion system, facilitate the preparation of paint, construction film, then evaporated into the atmosphere environment.

 
Terpene solvent

The vast majority of secretions from the pine tree. There is a commonly used turpentine oil, pine oil etc.. The dissolving capacity of natural resin turpentine and resin than ordinary banana water, less than benzene. The volatile moderate speed, meet the requirements of paint coating and drying.

 
Petroleum solvent

This class belongs to the hydrocarbon solvent. From oil fractionation and. Commonly used with gasoline, pine perfume, kerosene. Gasoline volatilization speed fast, dangerous, just as solvent. Pine fragrance is a solvent commonly used in paint, its characteristic is low toxicity, generally used in paint and magnetic paint.

Coal tar solvent

This class also belongs to the hydrocarbon solvent. Is the coal carbonization and. Commonly used are benzene, toluene, xylene etc.. Solubility of benzene is very strong, is a strong solvent natural drying oil, resin, not dissolving shellac, but toxic, volatile fast, the paint is not generally used frequently, generally used as detergents; solubility and benzene toluene similar, mainly as alkyd paint solvent, can also be used as the diluent of epoxy resin, paint with a small amount of use, in detergent; dissolved xylene slightly less volatile than toluene, benzene toluene toxicity than slow, small, can replace Matsuka Misaku strong solvent.

Solvents

Combination of organic acid and alcohol with low carbon, commonly used with butyl acetate, ethyl acetate, ethyl acetate, amyl acetate etc.. Ethyl acetate dissolved force than butyl good. Butyl acetate toxicity, generally used in paint, convenient construction, can prevent the resin and nitrocellulose precipitation; Amyl Acetate volatilizes slower, use can improve the film leveling and pale in the fiber paint.

Ketone solvents

Organic solvents, mainly used to dissolve cellulose nitrate. Commonly used with acetone, methyl ethyl ketone, methyl isobutyl acetone, cyclohexanone etc.. Acetone dissolved very strong, volatile speed in any proportion of soluble in water, so easy to absorb water and make coating dry white, crust. General and slow volatilization solvent combination. Mostly used in paint, fast drying adhesive. But the acetone burns easily, use should pay attention to fire prevention; methyl ethyl ketone than acetone volatile slow dissolving capacity and shoot bad, can be used alone; methyl isopropyl ketone dissolved force, volatile moderate, ability to prevent white film is very strong; cyclohexanone slow volatilization, good solubility, surface Qimo form bright and smooth in drying, prevent the generation of bubbles.

Alcohol solvent

Organic solvent, can be mixed with water, ethanol, butanol and other commonly used. The dissolving capacity of alcohol solvent for paints is bad, can only be dissolved shellac or butyral resin. When used in conjunction with the ester, ketone solvents, can increase the dissolving power, so they are called the cosolvent nitrocellulose lacquer. Ethanol insoluble general resin, and can dissolve ethyl cellulose, shellac, etc.. Can also be used to prepare alcohol varnish, wood stain, wash primer etc.. The dissolving capacity of butanol is slightly lower than that of ethanol, volatilizes slower, similar properties with ethanol. Often with ethanol share, can prevent white film, eliminate pinhole, orange peel, bubbles and other defects. Special efficacy of butanol is to prevent paint gel, reduce viscosity also can be used as the solvent of amino resin.

Three, pigments and fillers

Provides coverage and required color, enhance its mechanical physical properties

Pigments

Has good covering power, can improve the performance of coating is the sun, durability and resistance to climate change. Some pigments can improve the wear resistance of the coatings. And the most is the coloring pigment can give a variety of color coating. Pigments are common titanium white, lithopone, Tie Hong TIO2, toluidine red, cadmium red, Tie Huang, chrome yellow, phthalocyanine green, chrome green, phthalocyanine blue, ultramarine, Qun Qing, iron blue, Prussian blue, toluidine purple, quinacridone violet, carbon black, iron oxide black.

Antirust pigment

This paint can make the coating has excellent antirust ability, prolong life. It is the main raw material of rust preventing primer. Antirust pigment are common red lead, red lead, zinc chromate, zinc phosphate, zinc phosphate, Tie Hong, Tie Huang, Al, micaceous iron oxide, zinc powder etc..

Pigment

Mainly used to increase the coating thickness, improve the wear resistance and mechanical strength. Pigments are common barium compounds, calcium compounds, aluminum compounds, magnesium compound, silicon dioxide.

Special pigments and functional pigments

The common gold powder, silver powder, pearl powder, fluorescent pigment, light, light storage temperature indicating paints, pigments, cuprous oxide (pollution), high temperature resistant composite pigment

Four, agent

The performance of comprehensive adjustment and improvement of paints and coatings

Wetting and dispersing agent

Wetting additives improve wetting of pigment agglomerates, dispersing agent and stable pigment dispersion to prevent flocculation, a product is often both wetting and dispersing function.

Leveling agent

Levelling agent to obtain the good appearance of coating film to improve by reducing the surface tension flow patterns, part of the special additives also can provide smooth, hardening, anti scratch and anti adhesion effect.

Defoaming agent

Divided into Anti foaming agent and defoaming agent. Antifoaming agent is mainly to control the bubble and will produce the bubble elimination, mostly play a role in the production and use of coating process; defoaming agent is mainly produced small bubbles from small to large, the bubble film gradually thinned and voluntarily broken bubble, such additives play an important role in the whole process of coating in.

Adhesion promoter

To improve the film substrate adhesion.

Matting agent

The strength of light extinction is weakening the reflection angle direction.

Thixotropic, thickening, anti sagging agent

The principle is simply provide crosslinked network structure of polymer additives of internal viscosity. Join the shear force will mesh structure is destroyed, the viscosity decreased. Remove shear, mesh structure response, so the viscosity rise again. The improvement of construction, the film product flow and product storage stability.

Plasticizer

In order to remain volatile liquid organic liquid in the paint film is known as plasticizers, also known as toughening agent, softener. The film is used to increase the flexibility and enhance the adhesion of the film, at the same time improve the cold resistance.

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