About C9 Hydrocarbon Resins

C9 hydrocarbon resin –  This articles will explain what it is and how it is used and tested.

What is C9 Hydrocarbon Resin?

• C9 hydrocarbon resin is produced by C9 fraction by products of petroleum cracking through pretreatment, polymerization and distillation. It is a low polymer with the molecular weight between 300-3000.
• It’s Featured by acid value, easy mutual solubilities, resistant to water, resistant to ethanol and chemicals.
• It has a chemical stabilizing property to acid and alkaline, viscosity adjusting and thermal stabilizing. Generally the resins are not used independently but have to be used together with other kinds of resins as promoters, adjusting agents and modifiers.

Application:

• Paints mainly use C9 hydrocarbon resin with high softening points.
• C9 hydrocarbon resin added to paints can increase
  • Final finishes of paints
  • Adhesiveness of paint films and the hardness
  • Resistance to acid and alkaline elements
• Rubbers Mainly use C9 hydrocarbon resin with low softening points. The resin has very good mutual solubilities with natural rubber particles. There is no effect of sulphurization of rubber.
• The resins have very good adhesiveness, they can increase the adhesiveness of adhesives, resistance to acid, alkaline and water. Subsequently they will reduce the production cost.
• Usually C9 hydrocarbon resin which have high softening point are used for printing inks to increase the printing property they have as the resin provides the following advantages
  • colour spreading,
  • fast dry
  • brightening effects.
• C9 hydrocarbon resin has certain unsaturation properties and can be used as paper glutting agents, plastic modifiers etc.

The testing method of petroleum resins

Softening point: Proceed in accordance with GB/T 4507-1999
Colour method: GB/T 1722-1992, Ga. (toluene: Resin=1: 1)Acid value: GB/T 2895-1982(1989) unsaturated polyester resin determination methodBr. Value(iodine value): In accordance with normative appendixAsh content: GB/T 2295-1980 coal asphalt ash content determination method.

Click here to find Our TDS