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Service > Epoxy features

Epoxy features

1, high mechanical properties. Epoxy resin has a strong cohesive force, dense molecular structure, so its mechanical properties than a phenolic resin and an unsaturated polyester and other general type thermosetting resin.
2, strong adhesion. Epoxy curing systems comprising the active great an epoxy group, hydroxyl group and an ether bond, an amine bond, an ester bond or the like polar groups, imparting cured epoxy to metal, ceramics, glass, concrete of concrete, wood and other polar substrate with excellent adhesion.
3, the curing shrinkage is small. Typically at 1% to 2%. Thermosetting resin shrinkage is the smallest species of curing (phenolic resin 8% to 10%; unsaturated polyester resin is 4% to 6%; silicone resin is 4% to 8%). Linear expansion coefficient is small, typically 6 × 10-5 / ℃. Therefore, little change in the volume after curing.
4, the technology is good. When the epoxy resin curing substantially no low molecular weight volatiles, it is possible to contact the low pressure molding or pressure molding. Can meet a variety of manufacturing and curing agent solvent-free, high solids, powder coatings and environmentally friendly water-based paint and other coatings.
5, excellent electrical insulation properties. Epoxy resins are thermosetting resins, one of the best varieties of dielectric properties.
6, good stability, excellent chemical resistance. No alkali, salt and other impurities epoxy perishable. As long as proper storage (sealed, not wet, not when the temperature), the storage period of 1 year. After extended if the inspection can still be used. Cured epoxy has excellent chemical stability. Its variety of media corrosion resistance and alkali, acid, salt and other than unsaturated polyester resins, phenolic resins and other thermosetting resins. Therefore widely used as anti-corrosion epoxy primer, epoxy resin cured because a three-dimensional network structure, and the ability dipping oils, etc., widely used in tanks, tankers, aircraft integral fuel tank inside wall linings.
7, the heat resistance of cured epoxy is generally 80 ~ 100 ℃. Epoxy heat up to 200 ℃ or more varieties.

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