Since the performance of solution-polymerized styrene is better than that of emulsion polystyrene, it gradually penetrates into the tire industry, and it accounts for about 70% of styrene. The third-generation solution of styrene-butadiene benzene uses the concept of integrated rubber, and maximizes the performance through molecular design and chain structure optimization. It has become the focus of the development of synthetic rubber, and the processing property of BR made by rare earth lanthanide catalyst. Physical properties and wet skid resistance are superior to other catalytic systems, and butyl rubber has a star-branched type IIR and a star-branched halogenated IIR that have significantly improved processability. In terms of high performance of NBR, there are powdered nitrile and hydrogenated nitrile. Thermoplastic elastomers are growing at times that are comparable to those of conventional rubbers.

Application of nano materials in rubber reinforcement

Carbon black has been used as a reinforcing agent for 100 years. Although nanomaterials range in size from 1 to 100 nm, the reinforcing carbon black and the general white carbon black structure fall within this range, but then Not considered from a nano perspective. Since the 1990s, the rapid development of nanotechnology, the enhancement of polymers, including the reinforcement of rubber, has given new meaning, making this field a new development period. The size of traditional inorganic fillers (except white carbon black) is much larger than that of nanomaterials, and their hydrophilicity. Although it has achieved considerable effects in surface modification, the problem of agglomeration of fillers has not been fundamentally Solution.

Nanomaterials have a large specific surface area, and there are naturally many active sites on the surface. In addition, due to the special effect of particle size, nanomaterials and rubber can be more effective. In particular, research on in-situ generation of nanofillers and intercalation techniques can achieve both nanometer size and dispersion problems. This makes it possible to make revolutionary progress in rubber reinforcement.