C9 softening point 90 petroleum resin C9

The brittleness of C9 softening point 90 petroleum resin C9 is relatively high.

C9 softening point 90 petroleum resin C9 is a thermoplastic resin produced by polymerizing C9 fraction, a byproduct of ethylene cracking, in the presence of a catalyst or co polymerizing it with aldehydes, aromatic hydrocarbons, and terpenes. It is not a high polymer, but an oligomer with a molecular weight ranging from 300 to 3000, with an average molecular weight generally between 2000 and 5000 (some say its molecular weight is less than 2000). Its molecular structure does not contain polar or functional groups, has no chemical activity, has a cyclic structure and contains some double bonds, with high cohesion.

In terms of performance,C9 softening point 90 petroleum resin C9 has good acid and alkali resistance, chemical resistance, and water resistance, but its bonding performance is poor, brittleness is high, and aging resistance is poor. Therefore, it is generally not used as a material alone, but is blended with other substances to improve the performance of various products. For example, it can be used as a thickening resin for SBS universal adhesive, SBS spray adhesive, laminating adhesive, pressure-sensitive adhesive, hot melt pressure-sensitive adhesive and other adhesives, or as a chloroprene adhesive to reduce costs.
In summary, the brittleness of C9 softening point 90 petroleum resin C9 is a significant drawback, which requires special attention during use and can be compensated for by combining it with other materials.