VESTAMID® Terra DD is partly based on renewable raw materials and in general has the highest performance of all the bio-based polyamides. VESTAMID® Terra DD is the polycondensation product of 1,10-decamethylene diamine (D) and 1,12-dodecanedioic acid (D). The 1,12-dodecanedioic acid (D) is typically sourced from a petroleum production route, but can also be sourced via palm kernel oil. Because both monomers can be derived from plant oils, VESTAMID® Terra DD is a material that is based 45% to 100% on natural resources. VESTAMID® Terra DD depicts 1,12-dodecanedioic acid from fossil resources, where as DD-G depicts the monomer from biomass resources. Technically speaking, VESTAMID® Terra DD is similar to other high-performance long-chain polyamides such as PA 12 and PA 11. It shows a very high impact strength and heat resistance. Due to its semi-crystalline morphology, VESTAMID Terra DD provides an excellent chemical resistance, e.g., against greases, oils, fuels and hydraulic fluids. It is the best choice in applications where stiffness and impact strength are required.Information provided by Evonik |