Preparation method of bio-based thermoplastic polyurethane elastomer
By introducing daily ammonium molten rosin chain expanders in biological armal plastic polyurethane elastomers, a new type of polymer with a hydrogenation three -Fei ring structure and a ductinium salt group is formed, which solves the heat resistance and antibacterial performance of polyurethane elastic body The deficiencies have achieved higher mechanical properties and heat resistance.
CN119081043BActive Publication Date: 2025-01-24兴邦新材料(山东)有限公司
Patent Information
- Application Number
- CN202411562151.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2044-11-05
AI Technical Summary
Technical Problem
The existing bio-based thermoplastic polyurethane elastomers have shortcomings in their heat resistance and antibacterial properties.
Method used
Quaternized rosin acid ester chain extender is used to perform polymerization chain extension reaction with polyol and diisocyanate to form a new bio-based thermoplastic polyurethane elastomer with hydrogenated triphenanthrene ring structure and quaternary ammonium salt group.
Benefits of technology
It improves the stretching strength of polyurethane elastic bodies, the elongation rate, thermal decomposition temperature and the diameter of the hemorrhage, which significantly improves its mechanical performance, thermal resistance and antibacterial performance.
✦ Generated by Eureka AI based on patent content.
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Abstract
The present invention relates to the technical field of polyurethane elastomers, and discloses a preparation method of a bio-based thermoplastic polyurethane elastomer, wherein dried and dehydrated polyols and diisocyanates are added to a reaction flask, a quaternized rosin ester chain extender is added after the reaction, stirring forms a gel, and the mixture is added to a mold, demoulding after placement, and ripening to obtain a bio-based thermoplastic polyurethane elastomer. The present invention introduces a hydrogenated triphenanthrene ring structure with high structural stability and strong heat resistance, and a quaternary ammonium salt group with antibacterial property into a polyurethane elastomer, thereby improving the tensile strength and elongation at break of the elastomer, and showing higher mechanical properties. At the same time, the thermal decomposition temperature and the antibacterial zone diameter of the elastomeric material are improved, and better heat resistance and antibacterial properties are obtained.
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Citation Information
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