Resin is a phenolic structure of chemical substances, the types are very much more widely used in our light industry and heavy industry among our daily lives are also often times, such as plastic, resin glasses, paint,
Resin can be used as a variety of high-grade refractory materials, grinding wheels, cutting chips, etc. ... Additive bonding agent
The main resins are general purpose resin, advanced coating resin, artificial marble resin, crystal handicraft resin, SMC, DMC resin, winding resin, decay resistant resin, flexible resin, colorant resin, food grade resin and other products
Resin classification
There are many ways to classify resins, except that they can be classified as natural resins and synthetic resins by resin source, and classified by synthesis reaction and main chain composition.
1, according to the resin synthesis reaction classification
According to this method, the resin can be divided into polyadducts and polycondensates. Addition polymer refers to the polymer obtained by the addition polymerization, the chemical formula of its chain-link structure and monomer the same formula, such as polyethylene, polystyrene, polytetrafluoroethylene and so on.
Condensed polymer refers to the polymer prepared by condensation polymerization, the structural unit of the chemical formula and the monomer formula, such as phenolic resin, polyester resin, polyamide resin.
2, according to the composition of the main chain of resin molecules
According to this method, the resin can be divided into carbon chain polymer, hetero chain polymer and elemental organic polymer.
Carbon chain polymer means a polymer whose main chain is composed entirely of carbon atoms, such as polyethylene, polystyrene and the like.
Heteropoly chain polymer refers to the main chain from the carbon and oxygen, nitrogen, sulfur and other elements composed of two or more polymers, such as polyacetal, polyamide, polysulfone, polyether and so on.
Organic polymer refers to the main chain does not necessarily contain carbon atoms, mainly by the silicon, oxygen, aluminum, titanium, boron, sulfur, phosphorus and other elements atoms, such as silicone |
