Polymeric compounds materials with polyethylene ( LDPE) and fibers Maclura tinctoria tree ( Moraceae )

Polymeric compounds materials with polyethylene ( LDPE) and fibers Maclura tinctoria tree ( Moraceae )


  • S. Nikolaeva Universidad Nacional de Costa Rica
  • J.J Saavedra-Arias Universidad Nacional de Costa Rica
  • G. Sáenz-Arce
  • R. Salas
  • J. Vega Baudrit
  • G. Rodríguez Universidad Nacional de Costa Rica
  • P. Pantyukhov




maclura tinctoria, mora tree fibers, polymeric composite materials, LDPE, characterization.


Costa Rica has extensive areas of tropical forests that, managed with care and knowledge, can provide renewable raw materials and conserve biodiversity. Here we characterize the branches, leaves and bark of the “Mora Tree”, Maclura tinctoria. We manufactured composite polymeric materials and applied infrared spectrometry, liquid chromatography, optical microscopy, and the analysis of thermal and mechanical properties. We found polyphenols in all parts of the tree. The natural substrate increases crystallization temperature and reduces the crystallinity of low density polyethylene (LDPE). The elasticity modulus is higher for the composite material than for the LDPE. The fibers of this species are a promissing alternative for new products and to reduce the environmental impact of traditional polymeric materials.


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How to Cite

Nikolaeva, S., Saavedra-Arias, J., Sáenz-Arce, G., Salas, R., Vega Baudrit, J., Rodríguez, G., & Pantyukhov, P. (2015). Polymeric compounds materials with polyethylene ( LDPE) and fibers Maclura tinctoria tree ( Moraceae ). UNED Research Journal, 7(2), 209–216. https://doi.org/10.22458/urj.v7i2.1147