The invention discloses high-temperature-resistant aircraft tire tread rubber and a preparation method and application thereof, and the tread rubber is prepared from the following raw materials in parts by weight: 40-50 parts of natural rubber, 50-60 parts of butadiene styrene rubber, 50-75 parts of a reinforcing system, 5-10 parts of a heat-resistant system, 6-12 parts of an anti-aging system, 2-5 parts of a vulcanization system and 2-5 parts of other auxiliaries. The reinforcing system comprises white carbon black, a coupling agent and a white carbon black dispersing agent in a weight ratio of (50-60): (3-5): (5-6); the heat-resistant system comprises nano aluminum powder and nano titanium dioxide in a weight ratio of (3-5): (3-4); after the tread rubber is subjected to hot air aging at 150 DEG C for 4 hours, the increase amount of the Shore A type hardness is 5% or below, the increase amount of 300% stress at definite elongation is 10% or below, the reduction amount of the tensile strength is 25% or below, and the reduction amount of the elongation at break is 25% or below. The tread rubber can ensure the stability and long-term reliability of the aircraft tire under the high-temperature use condition.
一种耐高温航空轮胎胎面胶及其制备方法和应用,所述胎面胶的原料以重量份计,包括天然橡胶40‑50份、丁苯橡胶50‑60份、补强体系50‑75份、耐热体系5‑10份、防老体系6‑12份、硫化体系2‑5份、其他助剂2‑5份;补强体系包括重量比为(50‑60):(3‑5):(5‑6)的白炭黑、偶联剂和白炭黑分散剂;耐热体系包括重量比为(3‑5):(3‑4)的纳米铝粉和纳米钛白粉;胎面胶在150℃×4h热空气老化后,邵氏A型硬度增加量在5%以下,300%定伸应力增加量在10%以下、拉伸强度降低量在25%以下、扯断伸长率降低量在25%以下。本胎面胶能够确保航空轮胎在高温使用条件下的稳定性和长期可靠性。
High-temperature-resistant aircraft tire tread rubber, preparation method thereof and aircraft tire
一种耐高温航空轮胎胎面胶及其制备方法和航空轮胎
11.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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