Polytetramethylene Ether Glycol (PTMEG) Instruction:

Polytetramethylene ether glycol (PTMEG) is a waxy, white solid that melts to a clear, colorless, viscous liquid near room temperature. The main applications of PTMEG are the production of spandex (polyurethane) fibers, polyurethane elastomers, and copolyester-ether elastomers. PTMEG is produced by the catalytic polymerization of tetrahydrofuran (THF).

Polytetramethylene Ether Glycol Features:

Polytetramethylene ether glycol (PTMEG) is mainly used to producte polyurethane elastomers, polyurethane elastomers (Spandex) and ester-ether copolymer elastomers. The consumer market for PTMEG is spandex with about 49%, followed by polyurethane elastomers with about 35% and ester-ether copolymer elastomers with about 15%. PTMEG is a very important raw material of polyether polyol for the production of polyurethane elastomer products. In China, PTMEG is mainly used in spandex and polyurethane elastomers. PTMEG is essentially a gap for ester-ether copolymer elastomers.

The raw material for the production of polytetramethylene ether glycol  is tetrahydrofuran, a tetrahydrofuran monomer that undergoes ring-opening polymerization to form a backbone consisting of a carbon chain and an ether chain. PTMEG is ethylene glycol and linear in structure. The hydroxyl groups are located at both ends of the main chain. the main chain of PTMEG is composed of a carbon chain and an ether chain. Because PTMEG does not contain unsaturated bonds and has good flexibility, PTMEG has better aging resistance and best mechanical properties. PTMEG also has good hydrolysis resistance due to the absence of ester bonds.