The invention relates to a self-sealing rubber composition, a preparation method thereof, and a pneumatic tire with an anti-puncture function. The self-sealing rubber composition comprises butyl rubber, polyisobutene, a filler, a plasticizer and a crosslinking system. The self-sealing rubber composition provided by the invention has high viscosity and can be attached to the inner side of a tire lining layer, the pneumatic tire with an anti-puncture function is prepared, when the tread of the pneumatic tire is punctured by an object, the self-sealing rubber composition can be attached to the punctured object to prevent air pressure leakage, when the puncture object is removed from a tread, the self-and sealing rubber composition has appropriate flowability and can flow into a puncture hole to enable the tire to be airtight, so that the internal pressure is prevented from being reduced, and the pneumatic tire achieves a safe puncture-proof effect. And meanwhile, the safety tire has better comfort, low tire noise and low rolling resistance, and has a wide market application prospect.
自密封橡胶组合物及其制备方法和具有防刺穿功能的充气轮胎。本发明提供了一种自密封橡胶组合物,包括:丁基橡胶,聚异丁烯,填料,增塑剂,交联体系。本发明提供的上述自密封橡胶组合物具有高粘性,可以附着于轮胎内衬层的内侧,制备得到具有防刺穿功能的充气轮胎,当充气轮胎胎面受到物件穿刺时,自密封橡胶组合物能够粘附在穿刺物上,以防止气压泄漏,在从胎面去除穿刺物的情况下,自密封橡胶组合物具有适宜的流动性能够流入穿刺孔并使轮胎气密,防止内压降低使充气轮胎达到安全防穿刺的效果。同时所述安全轮胎具有较佳的舒适性,且胎噪低、滚动阻力低,具有广阔的市场应用前景。
Self-sealing rubber composition, preparation method thereof, and pneumatic tire with puncture-proof function
自密封橡胶组合物及其制备方法和具有防刺穿功能的充气轮胎
09.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | C09J ADHESIVES , Klebstoffe / B60C VEHICLE TYRES , Fahrzeugreifen / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand |
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