| 摘要 |
A liquid titanium-based catalyst and method for preparing polyester polymer thereof are disclosed herein. The catalyst is made by tetrabutyl titanate, 1-4 butanediol, phosphate ester, hydroxycarboxylic acid, TEOS, acetates of metal element through heating reactions in an appropriate amount of solvent. While the catalyst maintains a high activity, the synthetic slices have good hue, with high molecular weight, stable property, resistance to hydrolysis, moreover, the catalyst is a stable multicomponent liquid catalyst based on titanium, silicon. It can be directly added or diluted to add to the raw material ester or oligoester to be poly-condensed used for synthesis of polyesters which can be used in the production of fibers, engineering plastics, films, PET bottles, sheets and profiles, etc. |
