Imported Premium Chain Extender

properties of the products. Chain extenders are alcohols or amines with low molecular weight multifunctional groups containing hydroxyl or amino groups. Common alcohols chain extenders include 1,4 dibutanediol (BDO), 1,6 dihexanediol, glycerol, trimethylolpropane, diethylene glycol (DEG), triethylene glycol, neopentyl glycol (NPG), sorbitol, diethylaminoethanol (DEAE), etc. Amine chain extenders include MOCA and formaldehyde modified liquid MOCA, ethylenediamine (DA), N, N-dihydroxyl (diisopropyl) aniline (HPA), etc. There is hydroquinone two (-hydroxyethyl) ether (HQEE), used as a polyurethane adhesive chain extender, its products heat resistance, hardness and elasticity are higher than the general use of chain extender. [1]

Necessary reagents in the production of polyurethane, polyurethane is a prepolymer formed by the reaction of aliphatic and aromatic monomers containing diisonitrile with polyesters or polyethers containing binary or polyols. When applied, chain extenders are added to shape the resin. Common chain extensions are small alcohols containing binary or polyols, amino, iminoid, or ether alcohols.