Physical properties: Petroleum resins produced using C9 fractions in petroleum as raw materials are called C9 petroleum resins. It is obtained by polymerizing the remaining fractions (C8~C11) after separating benzene,Petroleum Resin toluene and xylene from heavy by-product cracking oil. At room temperature, it is a glassy thermoplastic solid, brittle,Petroleum Resin light yellow to light brown, average molecular weight 500~1000. Relative density 0.97~1.06, softening point 40~1400C,Petroleum Resin glass transition temperature 810C, ignition point above 2600C, refractive index 1.5120 C. Soluble in , methyl ethyl ketone,Petroleum Resin cyclo ethyl ketone, benzene, toluene, ethyl acetate, dichloroethane and dry oil,Petroleum Resin insoluble in water and ethanol. It has a ring structure, large cohesion, good water resistance, acid and alkali resistance, weather resistance and chemical resistance,Petroleum Resin but poor adhesion. The compatibility of benzene rubber and the like is good, but the compatibility with natural rubber is slightly worse.
Chemical properties: Petroleum resins begin to gradually develop due to their high peel adhesion strength,Petroleum Resin fast viscosity, stable adhesion performance, moderate melt viscosity, good heat resistance,Petroleum Resin good compatibility with polymer matrix, and low price Replace natural resin tackifier (rosin and terpene resin). The characteristics of petroleum resin in hot melt adhesive: good fluidity, can improve the wettability of the main material, good viscosity,Petroleum Resin and outstanding initial adhesion performance. Excellent aging resistance, light color,Petroleum Resin transparent, low odor, low volatile matter. In hot melt adhesives, ZC-1288D series can be used alone as a tackifying resin,Petroleum Resin or it can be mixed with other tackifying resins to improve certain characteristics of the hot melt adhesive.
Petroleum resins have good viscosity-increasing, compatibility,Petroleum Resin thermal stability and light stability, and can improve the adhesive performance of adhesiveness,Petroleum Resin and are an indispensable viscosity-increasing component of many adhesives. Widely used in industries such as hot melt, pressure-sensitive adhesive,Petroleum Resin structure and decoration of the construction industry, automobile assembly, tires, commodity packaging, book binding,Petroleum Resin sanitary products, shoemaking, hot-melt road marking paint, colored asphalt, etc.
