The invention provides an ionic polyurethane composition and a preparation method and application thereof.The ionic polyurethane composition comprises an ionic prepolymer and an ionic composition, the ionic prepolymer is prepared from polyether polyol A, polyisocyanate and an active-group-terminated ionic-group-containing compound, and the ionic composition is prepared from polyether polyol A, polyisocyanate and an active-group-terminated ionic-group-containing compound. The ionic composition comprises an aqueous solution containing ionic groups, polyether polyol B, a chain extender and a catalyst; according to the ionic polyurethane composition, ionic groups are introduced into a polyurethane molecular chain in two modes of chemical grafting and physical mixing, and the acting force among polyurethane molecules is enhanced, so that the mechanical property, fatigue resistance and thermal stability of a polyurethane elastomer prepared from the ionic polyurethane composition are effectively improved.
本发明提供一种离子型聚氨酯组合物及其制备方法和应用,所述离子型聚氨酯组合物包括离子型预聚体和离子型组合物,所述所述离子型预聚体的制备原料包括聚醚多元醇A、多异氰酸酯和活性基团封端含离子基团的化合物,所述离子型组合物包括含离子基团的水溶液、聚醚多元醇B、扩链剂和催化剂;本发明通过化学接枝和物理混合两种方式将离子基团引入到聚氨酯分子链中,增强了聚氨酯分子间的作用力,从而有效提高了采用所述离子型聚氨酯组合物制备得到的聚氨酯弹性体的力学性能、耐疲劳性和热稳定性能。
Ionic polyurethane composition as well as preparation method and application thereof
一种离子型聚氨酯组合物及其制备方法和应用
2023-02-03
Patent
Electronic Resource
Chinese
IPC: | C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen |
Polyurethane composite board as well as preparation method and application thereof
European Patent Office | 2022
|Thermoplastic polyurethane composite material as well as preparation method and application thereof
European Patent Office | 2023
|High-hardness polyurethane elastomer as well as preparation method and application thereof
European Patent Office | 2021
|High-strength polyurethane composite board as well as preparation method and application thereof
European Patent Office | 2023
|Sound-absorbing polyurethane foaming material as well as preparation method and application thereof
European Patent Office | 2021
|