Polymer Water-absorbing Resin

Resins are divided into natural resins and synthetic resins. Natural resin refers to amorphous organic substances obtained from the secretions of animals and plants in nature, such as rosin, amber, shellac, etc. Synthetic resin refers to resin products obtained by chemical synthesis of simple organic matter or chemical reaction of certain natural products, such as phenolic resin, polyvinyl chloride resin, etc., of which synthetic resin is the main component of plastic. According to the synthesis reaction, the resin can be divided into polymer and condensation according to this method. Addition polymer refers to a polymer prepared by addition polymerization, and the chemical formula of its chain link structure is the same as that of monomer, such as polyethylene, polystyrene, polytetrafluoroethylene, etc. Condensation refers to a polymer prepared by condensation polymerization, and the chemical formula of its structural unit is different from the molecular formula of monomer, such as phenolic resin, polyester resin, polyamide resin, etc.