How many kinds of epoxy resin are there?What are the characteristics of each?
This kind of aliphatic epoxy resin epoxy resin molecular structure not only benzene nucleus, or alicyclic structure. Only fatty chain, connected with epoxy fatty chain. Epoxidized polybutadiene resin curing the strength, toughness, adhesion, resistance to positive and negative temperature performance are good.
This kind of alicyclic epoxy resin epoxy resin is cyclic olefin by grease prepared by epoxidation of double bond, their molecular structure and two phenol propane epoxy resin and epoxy resin have very big difference, the former is directly connected to the lipid epoxy ring, epoxy and the latter is connected in the benzene nucleus or aliphatic hydrocarbon with epoxy propyl ether. Alicyclic epoxy resin cured group has the following characteristics: compression and tensile strength were higher; the long run the storm can still maintain good mechanical properties at high temperature; the arc resistance, UV resistance and ageing resistance and weather resistance is good.
Has advantages of glycerol amine epoxy resin is the polyfunctional epoxy equivalent, high crosslinking density, significantly improved heat resistance. At home and abroad have been using glycidyl amine epoxy resin excellent adhesion and heat resistance, to manufacture carbon fibre reinforced composites (CFRP) for the two aircraft structural materials.
Glycidyl ester epoxy resin glycidyl ester epoxy resin and two phenol propane epoxy resin, it has low viscosity, good manufacturability; high reactivity; adhesion than general epoxy resin, curing material with good mechanical properties; good insulation; good weather resistance, and has good resistance to super low temperature, in ultra low temperature conditions, still has the binding strength than other types of epoxy resin high. Have good surface gloss, transparency, good weather resistance.
Five major categories1. glycidyl ethers epoxy resins2. glycidyl epoxy resin3. glycidyl amine epoxy resin4. linear aliphatic epoxy resin5. alicyclic epoxy resin
