▎ 摘　　要

NOVELTY - Preparing polycondensation catalyst involves providing Ti3C2TxA mxene material, adding the Ti3C2Tx mxene material and the benzoxazine monomer are blended homogeneously to obtain a blend, heating the blend for curing to obtain Ti3C2TxMXene/benzoxazine resin composite material. The laser irradiation of the Ti3C2Tx and the MXene/benzoxazine resin composite material is irradiated to obtain the titanium-loaded laser-induced graphene composite material, namely the polycondensation catalyst for polyester synthesis. USE - Method for preparing a polycondensation catalyst used for polycondensation polymerization to obtain polyester with higher molecular weight (claimed). ADVANTAGE - The method prepares the polycondensation catalyst for polyester synthesis in a simple, cost-effective and eco-friendly manner with high catalytic activity, provides polyester with higher molecular weight and mechanical properties, such as tensile modulus, tensile strength, and antistatic performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for synthesizing polyester, which involves: providing a first component and a second component, wherein the first component comprises terephthalic acid, furan dicarboxylic acid, terephthalic acid ester and furan dicarboxylic acid ester, and the second component comprises aromatic diol and aliphatic diol, mixing the first component, the second component and an esterification catalyst in an inert atmosphere or a nitrogen atmosphere to obtain a first intermediate product, and then subjecting the first intermediate product to polycondensation reaction under vacuum conditions in presence of the polycondensation catalyst for polyester synthesis to obtain the polyester.