Industry News

July 08, 2020 2020
Introducing Nitrile rubber softener: Coumarone indene resin

The rubber softener can soften the rubber, improve the plasticity and adhesion, and promote the uniform dispersion of the compounding agent in the rubber during the production of NBR.

 Coumarone indene resin has good compatibility in NBR compound and is not easy to be extracted from solvent. Coumarone indene resin with low softening point could improve the mixing process of NBR or reclaimed rubber During the processing, the resin can also dissolve a certain amount of sulfur 2LLYY0511-SJ to reduce the rate of sulfur spraying and scorch. It promoted sulfur dispersion and improved the tensile strength and hardness of the vulcanizates of nitrile rubber and reclaimed rubber. In the processing of NBR products, the dosage of Cumaron Resin is generally controlled at about 10 phr, and the liquid ancient Malone also has a certain role in increasing viscosity.


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