绿色轮胎与橡胶新材料

Green tire is defined as one behaved durability,safety,fuel efficiency,which is manufactured from green raw materials via advanced process.The novel rubber materials and technology for manufacturing green tire,polices,laws and regulations on green tire are summarized in this paper.Green tire technology is a combination of various innovative technologies including the design of materials formulation,optimization of tire structure and processing technology.The new formulation and structure design need to be realized through the improvement of processing technology such as continuous one-step mixing process at low temperature,pre-vulcanization technology,automatic molding process and nitrogen-filled curing technology.The development of novel rubber materials is one of the key factors for the innovation of green tire.The application of novel rubber materials in manufacturing green tire is beneficial to the effect of energy saving and emission reduction,nature rubber (NR),solution polymerized styrene butadiene rubber (SSBR),emulsion polymerized styrene butadiene rubber (ESBR),high cis-polybutadiene rubber and thermoplastic elastomer (TPE) are the main raw materials for manufacturing green tire.The mixing effect with silica improved,the rolling resistance can be decreased and the wet-skid resistance can be increased by using the functionalized SSBR.Neodymium-based high cis-polybutadiene rubber (Nd-BR) possesses excellent mechanical properties,dynamic mechanical properties,such as low heat build-up,rolling power loss,compression deformation,compression ratio and abrasion loss.Thermoplastic elastomer modified by halogenated butyl rubber,possesses excellent properties of high barrier,good fatigue and flexible performance,especially suitable for the inner-liner of green tire.The green tire technology in the variouslarge tyre companies,including Michelin,Bridgestone,Goodyear,and etc.,is summarized and the character of green tire technology in each company is described in detail.The related requirements and implementation of tire labeling regulations in major countries and regions are also summarized,which is favorable for the development of green tire.The domestic and foreign policies and regulations such as tire label regulation,environmental protection law,access conditions of tire industry,technical specification of green tire,recommended guideline of green tire raw materials are also discussed in this paper.The technical references of novel materials for green tire have been also reviewed,which is helpful for the understanding of the updated development requirements.