The invention relates to a self-sealing composition, a self-sealing tire and a manufacturing method of the self-sealing tire. The self-sealing composition comprises the following components in parts by weight: 50-100 parts of natural rubber, 0-50 parts of polybutadiene rubber, 40-70 parts of high styrene resin, 40-60 parts of a filling material, 80-120 parts of a plasticizer, 2-15 parts of a compatilizer and 0-8 parts of a coloring agent, the compatilizer is an auxiliary agent capable of promoting the compatibility of the high styrene resin and the natural rubber; the number-average molecular weight of the natural rubber is (100-170) * 10 < 3 >; the number average molecular weight of the polybutadiene rubber is (250-350) * 10 < 3 >. By adjusting the formula, a good cross-linking effect is achieved in a system, a cross-linking system in the prior art can be omitted, and the compatibility and aging resistance of the self-sealing composition are guaranteed.
本发明涉及一种自密封组合物、自密封轮胎以及自密封轮胎的制造方法。该自密封组合物按重量份数计,包括以下组分:50~100份天然橡胶、0~50份聚丁二烯橡胶、40~70份高苯乙烯树脂、40~60份填充材料、80~120份增塑剂、2~15份相容剂、0~8份着色剂;相容剂选用可促进高苯乙烯树脂与天然橡胶相容的助剂;天然橡胶的数均分子量为(100~170)×103;聚丁二烯橡胶的数均分子量为(250~350)×103。通过对配方的调整,在体系内实现良好的交联效果,可以省去现有技术中的交联体系,保证自密封组合物的相容性以及耐老化性能。
Self-sealing composition, self-sealing tire, and method for manufacturing self-sealing tire
自密封组合物、自密封轮胎及自密封轮胎的制造方法
2023-07-28
Patent
Electronic Resource
Chinese
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL , Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / 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 / C09J ADHESIVES , Klebstoffe |