Sidewall rubber with long-acting aging resistance and preparation method thereof

• Main Authors: GUO ZHEN, WANG CHUANZHU, WANG YINZHU, ZHAO JUN, WU JUNXI
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

The invention discloses sidewall rubber with long-acting aging resistance and a preparation method thereof, and belongs to the technical field of tires. According to the technical scheme, the rubber composition comprises the following components in parts by weight: 100 parts of a rubber component, 40-50 parts of carbon black, 3-5 parts of tackifying resin, 6-8 parts of an anti-aging agent, 2-4 parts of a rubber anti-frosting agent OSGE, 5-8 parts of an oil processing aid, 1-2 parts of microcrystalline wax, 3-5 parts of zinc oxide, 1-1.5 parts of stearic acid, 1.2-1.6 parts of sulfur and 1-2 parts of an accelerant. The invention provides the sidewall rubber which can be used for a long time in a high-heat and high-ultraviolet scene and the preparation method thereof, so that the flexural aging resistance of the sidewall rubber is greatly improved, and the problem of flexural cracks of the sidewall rubber in the prior art is solved. 本发明公开了一种具有长效耐老化性能的胎侧胶及其制备方法，属于轮胎技术领域。其技术方案为：以重量份计，包括以下组分：橡胶组分100份、炭黑40-50份、增粘树脂