The invention relates to the technical field of tire rubber manufacturing, and discloses a tire tread rubber material with ultralow rolling resistance. The tread rubber material is prepared by mixing the following raw materials in parts by weight: 50.0 to 90.0 parts of solution polymerized styrene-butadiene rubber I, 20.0 to 40.0 parts of solution polymerized styrene-butadiene rubber II, 10.0 to 40.0 parts of solution polymerized styrene-butadiene rubber III, 50.0 to 120.0 parts of high-dispersion white carbon black, 3.0 to 8.0 parts of a white carbon black dispersing agent, 5.0 to 30.0 parts of aromatic hydrocarbon oil, 6.0 to 10.0 parts of a silane coupling agent I, 10.0 to 15.0 parts of a silane coupling agent II and 6.0 to 18.0 parts of road gripping resin, and 0.2 to 1.6 parts of an accelerant TOT-N. According to the invention, two silane coupling agents are added in sections, the dosage of the silane coupling agent II is increased, and long-chain octyl can play a role in shielding silicon hydroxyl on the surface of the white carbon black, so that the white carbon black has a better anti-flocculation effect; the rubber molecular chain can be further crosslinked through low-temperature vulcanization at the initial stage, and the flocculation of the white carbon black is not very violent; and through electron pre-radiation, rubber molecules of the tread can generate pre-crosslinking.
本发明涉及轮胎橡胶制造技术领域,公开了一种超低滚动阻力轮胎胎面胶料,所述胎面胶料按100重量份生胶计包括以下组分的原料混炼制备得到:溶聚丁苯胶Ⅰ50.0‑90.0份、溶聚丁苯胶Ⅱ20.0‑40.0份、溶聚丁苯胶Ⅲ10.0‑40.0份、高分散白炭黑50.0‑120.0份、白炭黑分散剂3.0‑8.0份、芳烃油5.0‑30.0份、硅烷偶联剂Ⅰ6.0‑10.0份、硅烷偶联剂Ⅱ10.0‑15.0份、抓地树脂6.0‑18.0份、促进剂TOT‑N0.2‑1.6份。本发明将两种硅烷偶联剂分段投入,并增加了硅烷偶联剂II的用量,其长链辛基可以在白炭黑表面起到屏蔽硅羟基的作用,使白炭黑更好的抗絮凝效果;初期的低温硫化可以使橡胶分子链进一步产生交联,而白炭黑的絮凝发生的不会那么剧烈;电子预辐射,可以使胎面的橡胶分子产生预交联。
Tire tread rubber material with ultralow rolling resistance, preparation method of tire tread rubber material and tire
一种超低滚动阻力轮胎胎面胶料及其制备方法和轮胎
2024-08-09
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 |