The main curing system of epoxy resin It is composed of epoxy resin, curing agent, diluent, plasticizer, reinforcing agent and filler, etc., and has the following characteristics:
（1）With diversified forms of various resins, curing agents, modifications Agent systems can be adapted to virtually every application requirement, ranging from very low viscosities to high melting point solids.
（2）Strong adhesion Due to the existence of polar hydroxyl groups and ether bonds inherent in epoxy resin, it has outstanding adhesion to various substances.
(3)Shrinkage The reaction between low epoxy resin and the curing agent used is carried out through direct synthesis, without the release of water or other volatile by-products. Compared with phenolic resin and polyester resin, epoxy resin has Shows only very low shrinkage (less than2%) during curing.
(4)Mechanical properties Since epoxy resin contains more polar groups, after curing The molecular structure is relatively compact, so the cured epoxy resin system has excellent mechanical properties.
（5）Chemical stability The cured epoxy resin system has excellent alkali resistance, Acid and solvent resistance.
（6）Electrical insulation properties of the cured epoxy resin system over a wide frequency and temperature range It has good electrical insulation properties. They are excellent insulating materials with high dielectric properties, surface leakage resistance, and arc resistance.
（7）Dimensional stability The combination of many properties mentioned above makes the cured epoxy resin system have Outstanding dimensional stability and durability.
(8 ) Mildew Resistance Cured epoxy resin systems are resistant to most molds and can be used in harsh tropical conditions. Nowadays, the best curing agent should be considered to be produced by Feifansi. It has been used in many large-scale projects and there are many others
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