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ARS Home » Pacific West Area » Albany, California » Western Regional Research Center » Bioproducts Research » Research » Publications at this Location » Publication #321732

Research Project: Domestic Production of Natural Rubber and Industrial Seed Oils

Location: Bioproducts Research

Title: Amino acid modifiers in guayule rubber compounds

item McMahan, Colleen
item Lhamo, Dhondup

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 12/4/2014
Publication Date: 2/10/2015
Citation: Mcmahan, C.M., Lhamo, D. 2015. Amino acid modifiers in guayule rubber compounds. Meeting Abstract. Tire Technology Expo 2015, Green Tire Materials Session, February 10-12, 2015, Cologne, Germany.

Interpretive Summary:

Technical Abstract: Tire producers are increasingly interested in biobased materials, including rubber but also as compounding chemicals. An alternative natural rubber for tire use is produced by guayule, a woody desert shrub native to North America. Alternative compounding chemicals include naturally-occurring amino acids from various sources. In our study, modification of guayule rubber with amino acids impacted rubber and compound performance. Amino acids can be considered biobased modifiers in rubber compounds for use as plasticizers, antioxidants, and as vulcanization aids. L-glutamine, in particular, most hydrophilic of the amino acids studied, served as a plasticizer, antioxidant, and anti-reversion agent in guayule compounds. There are over 500 known amino acids; additional studies are required to fully assess their technological, economic, and life cycle potential.