As asphalt modifier, varieties lot, conventional asphalt modifiers are tough elastomeric material at temperatures below the glass transition temperature of the polystyrene component, while at higher temperatures, and become close to linear fluid state of the polymer. It has the elastic properties of rubber, but also the thermoplastic properties of the resin, and thus both characteristics of rubber and resin. Depending on the different molecular structure and contains the proportion of styrene and butadiene, asphalt modifier into a linear structure and star structure, each structure there are several grades. ?? Because asphalt modifier http://www.hnsdyhg.com/ polymer chains have different blocks, plastic and rubber segment segment tandem structure, forming a "microstructure" structurally similar alloys. When homogeneously dispersed into the bitumen, the elastomeric material may be formed of high strength, these materials may be modified to strengthen the asphalt temperature performance, anti-tensile strength, elastic modulus, adhesion and noise absorption ability; can be clearly reduced sensitivity to temperature of the asphalt, while the softening point of a substantial increase in the hot summer season does not soften and improve the high temperature anti-road vehicle to push pro-and anti-withdrawal capacity; on the other hand to reduce asphalt brittle point, do not send in the cold season crisp, with flexibility and toughness, reducing pavement cracks. Asphalt modifier enables adhesion of asphalt and stone to improve, you can prevent the water caused by the effect of stone flaking off and other grains, and the basis of cohesion enhancement, not easily damaged. ?? Asphalt modifier to improve the low temperature flexibility and high temperature stability, resistance to permanent deformation of asphalt ability, resistance to low temperature cracking and fatigue cracking is enhanced. The modified asphalt needle people was reduced, the viscosity increases, moderate and low temperature elastic recovery rate; safety, comfort, durability, cost-effective use of modified asphalt pavement can be significantly increased.