Use of composition in mute or self-sealing mute tires
Use of composition in mute or self-sealing mute tires
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The invention belongs to the technical field of tires, and particularly relates to application of a composition in a mute tire or a self-sealing mute tire. The composition comprises an ultra-high molecular weight elastomer and a low molecular weight polymer, and the weight-average molecular weight Mw of the ultra-high molecular weight elastomer is greater than or equal to 800,000 Da. The composition provided by the invention has high viscosity and modulus retention at high temperature, has high dimensional stability, and can ensure that the composition can maintain a better size in the high-speed and high-temperature running process of a tire. The composition provided by the invention has good storage stability and thermal stability, and when the composition is stored or applied to a tire for use, the viscosity and modulus change is small, so that the self-sealing performance of the composition is better ensured. The composition of the present invention has excellent and balanced flowability, outflow resistance, adhesion and suitable viscosity. In the service cycle of the tire, the bonding layer and/or the self-sealing adhesive layer formed by the composition are/is soft and cannot be broken or separated from the inner wall of the tire and the sound absorption porous material.
本发明属于轮胎技术领域，具体涉及一种组合物在静音轮胎或自密封静音轮胎中的用途。所述组合物包括超高分子量弹性体和低分子量聚合物，所述超高分子量弹性体的重均分子量Mw大于等于800,000Da。本发明的组合物在高温下粘度和模量保持度高，具有高的尺寸稳定性，可以保证组合物在轮胎高速高温行驶过程中能保持更好的尺寸。本发明的组合物具有好的储存稳定性和热稳定性，在储存或施加到轮胎使用过程中，粘度和模量变化小，更好的保证组合物的自密封性能。本发明的组合物具有优异和平衡的流动性、抗流出性、粘合性和适合的粘度。在轮胎的使用周期内，组合物形成的粘结层和/或自密封胶层柔软，不会与轮胎内壁和吸声多孔材料发生断裂或脱离。
Document information
Use of composition in mute or self-sealing mute tires
组合物在静音轮胎或自密封静音轮胎中的用途
2024-04-12
Patent
Electronic Resource
Chinese
| IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C09J ADHESIVES , Klebstoffe |