生物基热塑性聚醚酯弹性体及其制备方法和应用
By combining specific molecular structures and using specific preparation methods, the problems of low transparency, poor mechanical properties, and poor heat resistance of bio-based thermoplastic polyether ester elastomers have been solved, resulting in the preparation of bio-based thermoplastic polyether ester elastomers with high transparency, excellent mechanical properties, and heat resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI
- Filing Date
- 2023-05-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional bio-based thermoplastic polyether ester elastomers suffer from problems such as low transparency, poor mechanical properties, and poor heat resistance.
Bio-based thermoplastic polyether ester elastomers are prepared by the interaction of specific molecular structures, including esterification or transesterification reactions under a protective atmosphere, followed by polycondensation reactions under vacuum conditions, forming microphase separation of crystalline and amorphous regions, thereby improving transparency, mechanical properties and heat resistance.
The prepared bio-based thermoplastic polyether ester elastomer has excellent transparency, mechanical properties and heat resistance. Its melting point reaches above 130℃, transmittance reaches above 80%, initial deformation recovery rate reaches above 58%, tensile modulus reaches above 35MPa, and elongation at break reaches above 500%.
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