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一种用于防爆轮胎自密封层的橡胶组合物及其制备方法

InventionUnknown
10Claims · 2 independent
§ Ⅰ

Dossier Overview

Inventor

陈伟

Filing Date

Aug 17, 2026

Publication Date

Oct 20, 2026

IPC Classification

C08L 23/22 (2025.01)C08L 23/283 (2025.01)C08L 23/26 (2025.01)C08L 9/00 (2006.01)C08L 7/00 (2006.01)C08K 3/34 (2006.01)C08K 7/00 (2006.01)C08K 9/04 (2006.01)C08K 9/06 (2006.01)B60C 1/00 (2006.01)

本发明公开了一种用于防爆轮胎自密封层的橡胶组合物及其制备方法,涉及轮胎材料技术领域。本发明包括按质量百分比计,称取卤化丁基橡胶14%‑30%、丁基橡胶3%‑14%、二烯结构橡胶1%‑8%、聚异丁烯21%‑50%、增粘树脂8%‑22%、补强填料4%‑14%、软化剂2%‑8%、防老剂0.2%‑2%、剪切可逆网络剂4%‑15%;所述剪切可逆网络剂包括脲基硅烷改性片层硅酸盐和羧基化液体聚异丁烯。本发明通过卤化丁基橡胶、丁基橡胶、二烯结构橡胶、聚异丁烯、增粘树脂和剪切可逆网络剂配合,形成具有自粘连续相和物理缔合网络的橡胶组合物。刺穿时,物理缔合网络受剪切作用发生局部破坏,材料流动阻力降低并进入刺孔;剪切停止后,物理缔合网络恢复,封堵区域保持内聚强度。

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