Ester-group-containing polyether polyol capable of improving compression resistance of slow-rebound sponge and preparation method of ester-group-containing polyether polyol

• Main Authors: CUI HUIMING, NI ZHANGGEN, ZHANG HENG, LIN TAO
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses ester-group-containing polyether polyol for improving compression resistance of slow-rebound sponge and a preparation method of the ester-group-containing polyether polyol, and relates to the technical field of slow-rebound sponge. The ester group-containing polyether polyol is prepared from the following components: polyol, caprolactone, an initiator, a cross-linking agent, a polymeric monomer and a catalyst. The preparation method comprises the following steps: S1, adding an initiator stannous iso-octoate by adopting micromolecular polyol with more than two degrees of functionality as an initiator, and then adding caprolactone and a cross-linking agent for reaction polymerization to obtain polycaprolactone polyol; and S2, adding a catalyst, and growing through a polymeric monomer to generate polyether polyol. Compared with the prior art, the preparation method has the advantages that the polyol is modified through reaction, the polyether is grafted on the polyester, the polyether pol