What is C9 petroleum resin used for?

C9 petroleum resin plays an important role in multiple industrial fields. As a thermoplastic resin, C9 petroleum resin is mainly 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. Its molecular weight is generally less than 2000, its softening point is less than 150 ℃, and it is in a thermoplastic viscous liquid or solid state. The following are the main uses of C9 petroleum resin:

1.Coating industry: It can be combined with other resins to completely or partially replace expensive resins, thereby achieving the goal of reducing costs and improving various properties such as gloss, hardness, water resistance, stability, and chemical resistance of products. For example, in the formulation of phenolic varnish, replacing rosin modified phenolic resin and rosin calcium grease with equal amounts of C9 petroleum resin still meets relevant standards, but the cost is greatly reduced.

2.Adhesive industry: The addition of C9 petroleum resin can improve the adhesive stability, creep resistance, heat resistance, and other properties of polymers in adhesives. For example, the viscous mixture obtained by mixing petroleum resin with SBS thermoplastic elastomer block copolymer can be used to make pressure-sensitive adhesive tapes or pressure-sensitive adhesives.
3.Rubber industry: mainly used as a rubber softening additive, it can reduce the amount of natural rubber or synthetic rubber used, while not changing the quality of rubber products, significantly reducing production costs. In terms of process, using C9 petroleum resin can save one raw rubber refining process, shorten the production cycle, and improve economic efficiency.
4.Printing ink: C9 petroleum resin has good compatibility with many components in the ink, which can meet the requirements of various specifications of printing ink for various indicators such as wetting speed, drying speed, solvent release, water and alkali resistance. After petroleum resin is processed into ink, it can maintain a stable dispersed state of the pigment for a long time.
In addition, C9 petroleum resin is widely used in various fields such as paper additives, waterproof coatings and additives, automotive parts and tire industries, asphalt modification, high-end ink and printing industries, and environmentally friendly materials due to its excellent water resistance, acid and alkali resistance, weather resistance, and light aging resistance.
In summary, C9 petroleum resin plays an indispensable role in multiple industrial fields due to its unique properties and wide application prospects.