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Alkyd resins from polyhydric alcohol, phthalic anhydride and fatty acid or oil (triglyceride fatty acid ester) condensation polymerization of oil-modified polyester resin. By fatty acid (or oil) molecules in the double bond number and structure can be divided into dry, semi-and non-dry categories. Dry alkyd resin can be cured in the air; non-drying alkyd resin will have to with the amino resin mixture can be cured by heating. There is also can be used in fatty acid (or oil), or the content of phthalic anhydride, is divided into short, medium, long and very long four kinds of oil alkyd degrees. Alkyd resin film after curing, shiny and toughness, strong adhesion and good abrasion resistance, weather resistance and insulation and so on.
Alkyd resin can be melt polycondensation or solution polycondensation manufacturing. Melting method is glycerin, phthalic anhydride, fatty acid or oil in an inert atmosphere heated to above 200 ℃ esterification, until the acid value meet the requirements, coupled with diluted solvents. Solution polycondensation method is the reaction in xylene and other solvents, xylene is solvent, but also as a water azeotropic liquid, can increase the reaction rate. Reaction temperature is lower than the melt polycondensation, the product slightly stained. The resin properties with the structure of fatty acid or oil to another. Alkyd resin is mainly used for coatings, paint, metal protection, furniture, vehicles, buildings, etc. are widely used, but also can be used as the insulating layer of enameled wire, made of a large number of inks used in the printing industry, in addition, for the manufacture of molded plastic .
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Alkyd:
IMDG Classification and number of flammable liquids. Reference GB3.3 class 33645. UNNO.1866; IMDG CODE 3278,3379 pages, 3.3 class.
Physical and chemical properties brown viscous liquid. Is a modified soybean oil pentaerythritol and phthalic anhydride Condensation in the 200 petrol solvent solution.
Hazardous properties flammable, flash point 23 ~ 61 ℃. When the temperature, open flame, oxidizing agents caused any fire hazard. Thermal decomposition products toxic resin.
Identification of accident types: fire, poisoning, the container burst.
Fire emergency response method: firefighters must wear gas masks and full-body protective clothing. Foam, water spray, dry powder, carbon dioxide, 1211 fire extinguishing agent, sand fire. First Aid: Inhalation should be made from the pyrolysis gases in patients with contaminated areas, resettlement rest and keep warm. In severe cases, sent to hospital for treatment.
Information storage and transportation of dangerous goods. Packaging flag: flammable liquids. Packing method: (Ⅲ) class. Drum. Storage condition: stored in cool, ventilated coffers. Keep away from heat and fire, avoid direct sunlight. Isolated storage and transportation with the oxidants. Leak treatment: First, cut off the source of fire, wear gas masks and gloves. Absorbed with sand, down to the open areas in the buried or burned in incinerators. Contaminated the ground with putty Daogua clear. A large area of water leakage around the screen should be set up mist explosion suppression.

Amino resin by containing the amino compounds with formaldehyde resin formed by the condensation of the general. Important resin urea-formaldehyde resin, melamine-formaldehyde resin and aniline formaldehyde resin. Generally be made of aqueous or ethanol solution, can also be dried into a powder solid. Most of the hard and brittle, when you need to increase the use of filler.
Amino resin coating is a multi functional groups of compounds in order to contain (-NH2) functional group compounds with aldehydes (mainly formaldehyde) addition condensation, then the resulting hydroxymethyl (-CH20H) and the aliphatic monohydric alcohols part of the ether of or all of the ether of the product to be 2. According to the amino compounds used can be divided into different categories: urea-formaldehyde resin, melamine resin, benzene, on behalf of the melamine resin, copolymer resin.
If used alone as a film if the amino resin, obtained film is too hard, and brittle hair, poor adhesion to the substrate, it usually is compatible with the amino resin, and can be cross-linked by heating other types of resins usable by He can be used as oil-modified alkyd resins, unsaturated polyester resin, acrylic resin, epoxy resin, epoxy ester such as cross-linking agent, such as matching, by heating can be three-dimensional network structure, there is strength and toughness of paint membrane, depending on the use of amino resins and other resins match the changes, the resulting film has its own characteristics.
With the amino resin as crosslinking agent film with excellent gloss, color retention, hardness, chemical resistance, water resistance and weather resistance, etc. Therefore, amino resin as crosslinking agent is widely used in paints and automotive, industrial and agricultural machinery, just-made furniture, household appliances and metal pre-coated and other industrial coatings. Amino resin in the presence of acid catalyst may be in the bottom temperature baking or curing at room temperature, this performance can be used for reaction of two liquid-based wood coating and automotive repair coatings.

Epoxy Overview
Epoxy resins are generally refers to molecules containing two or more epoxy group of organic polymers, barring a few exceptions, their relative molecular weight is not high. The molecular structure of epoxy resin is based on the molecular chain containing active epoxy group for its features, the epoxy group can be located at the end of molecular chain, in the middle, or into a cyclic structure. As the molecular structure containing active epoxy groups, so that they can place a variety of types of curing agents to form insoluble cross-linking reaction, non-melting with a three-network structure of the polymer.
Where the molecular structure of the polymer containing epoxy group collectively referred to as epoxy resin. Cured epoxy resin has excellent physical and chemical properties, its surface metal and nonmetal materials have excellent adhesive strength, good dielectric properties, variable setting shrinkage is small, product size, good stability, high hardness, flexibility of good stability of the alkali and most of the solvents, which are widely used in national defense, national economic departments for pouring, dipping, laminating materials, adhesives, paints and so on.
In China since 1958 conducted a study of epoxy resin and to speed quickly put into industrial production, has been booming throughout the country, in addition to producing common bisphenol A-epichlorohydrin epoxy resin, the yet the production of new types of epoxy resin, in order to meet national defense construction and national economic sectors need hair.
Preparation of epoxy resin has the following several types:
1, the active hydride reaction with epichlorohydrin;
2, hydrogen peroxide or a peracid (eg peracetic acid) to double bond liquid-phase oxidation;
3, double bond compounds, the air oxidation;
4, other.
Because of its performance is not perfect, while the target application of epoxy resin is not all a thousand times, according to the use of different targets, the performance of epoxy resin have also been asked, for example, some request a low-temperature drying, and some excellent insulation performance requirements. And therefore should be targeted to the epoxy resin to be modified, the modified method has the following categories:
1, select the curing agent;
2, add reactive diluents;
3, add the filler;
4, add other kinds of thermosetting or thermoplastic resin;
5, modified epoxy resin itself.

Acrylic Introduction
Acrylic resin is acrylic and methacrylic acid esters, and other ene monomers are made of resin, the resin through the use of different structures, different formulations, production processes and solvent composition can be synthesized in different types, different properties and different applications of acrylic resin, acrylic resin film according to the structure and mechanism of the difference can be divided into thermoplastic and thermoset acrylic resin, acrylic resin.
Acrylic ester and methacrylic acid ester monomers of acrylic resin, synthetic light the main absorption peak in the solar spectrum outside, so obtained acrylic resin paint has excellent lightfastness and outdoor aging.
The use of acrylic resin
Thermoplastic acrylic resin film-forming process does not occur in the further cross-linked, so it’s relatively large molecular weight, has a good security light color retention, water resistance, chemical resistance, dry fast, convenient, easy-to-construction re-coating and rework, Preparation of aluminum when the aluminum powder paint whiteness, location is good. Thermoplastic acrylic resin in the automotive, electrical appliances, machinery, construction and other fields are widely used.
Thermosetting acrylic resin is defined as structure with a certain amount of functional groups, in the paints, when adopted and entered into the amino resin, epoxy resin, polyurethane and other functional groups in response to the formation of network structure, thermosetting resins in general a relatively low molecular weight. Thermosetting acrylic paint has excellent fullness, luster, hardness, solvent resistance, weather resistance, do not change color when baking at high temperatures, non-yellowing. The most important application is made with the amino-and amino resins – acrylic paint, is currently in the automotive, motorcycle, bicycle, rolled steel and other products is widely used.
Classification of acrylic resin
According to production methods, the classification can be divided into:
1, polymerization! Through the monomer, initiator and reaction solvent with the reaction of polymerization, generally into the resin as the solid content of 50% of the resin solution! Is a solvent containing about 50% of the resin, the general reaction of the solvent used for the benzene (toluene or xylene), esters (ethyl acetate, butyl acetate), generally a single or a mixture! Solid emulsion of acrylic resin with a solvent immutability! Usually a result of the choice of solvent is not the same as performance of different Er Shi! Generally have a certain color! The glass transition temperature lower, because the general is not down with methyl acrylate reaction! Solid resins of this type can have a higher solid content can be up to 80%! To do high-solid coating, the production is simple! But non-denaturing solvent, transportation inconvenient!
2, suspension polymerization! Is a more complex production process, is generally used as the production of solid resin and a method! Solid acrylic resin, which are generally used with a reaction of methyl acrylate polymerization continues! Without methyl acrylate are generally with a certain degree of functional group! The Fu River in the polymerization reaction in the reaction difficult to control, easy to sticky and to the explosion pot! The general process is the monomer, initiator, auxiliary input response to ax and then placed in distilled water in reaction! In a certain reaction time and temperature after washing, then drying! Filtering and so on! Production control of their products more stringent! If a link in the middle of which do not place their products out there will be some effect! Is generally reflected in the color difference between the top and molecular weight!
3, bulk polymerization! Is a more efficient production process! Is usually the raw material into a special plastic film! Reaction into a junction block and then come up with crush, and then filter made, the general way of producing the kinds of solid acrylic resin and the purity of all the production method can be the highest! The stability of his products is the best, but he was also quite a big disadvantage! Body with benzene polymerization of acrylic resins for solvent solubility is not strong! Sometimes the same the same ratio of monomer to be difficult to dissolve with the suspension polymerization several times! And the pigment dispersion not as suspension polymerization of acrylic resin!
4, other polymerization methods! Solvent reaction continues via the solvent acting as intermediaries with the material! The reactor off after a good solvent!

Hazardous characteristics: powder can form explosive mixtures with air, when reaches a certain concentration, the case of Mars will be an explosion. Heating decomposition of flammable gases.
Hazardous combustion products: carbon monoxide, carbon dioxide.
Fire fighting methods: firefighters are required to wear gas masks, wearing full-body fire suit, fire in the wind. Fire-extinguishing agent: mist of water, foam, dry powder, carbon dioxide, sand.
Emergency treatment: isolation leakage polluted area, restricting access. Cut off the fire source.Recommended emergency personnel wearing a dust mask (full cover), wearing protective clothing. Avoid dust, carefully scan, bag placed transfer to a safe place. Can also be used a lot of water rinse, diluted into the wastewater system. If a large number of leaks, with plastic sheeting, canvas cover. Collection of recycling or shipped to the disposal of waste disposal sites.