SciELO - Scientific Electronic Library Online

 
vol.18 número3Influência do tipo de agente de partição da borracha nitrílica na obtenção de blendas PVC/NBREfeito da adição de diferentes copolímeros em blendas HDPE/HIPS pós-consumo: morfologia de fases e propriedades térmicas índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Polímeros

versão impressa ISSN 0104-1428versão On-line ISSN 1678-5169

Resumo

CANGEMI, José M.; SANTOS, Antonia M. dos; C. NETO, Salvador  e  CHIERICE, Gilberto O.. Biodegradation of polyurethane derived from castor oil. Polímeros [online]. 2008, vol.18, n.3, pp.201-206. ISSN 0104-1428.  https://doi.org/10.1590/S0104-14282008000300004.

The aim of this research was to study the biodegradation of a polymer derived from castor oil, which is a renewable, natural material that is a practical alternative for the replacement of traditional polyurethane foams. Due to its molecular structure, which contains polyester segments derived from vegetable oil, the polymeric surface is susceptible to microorganism attack. This study tested the biological degrading agent that was in contact with the microorganisms resulting from microbiological grease degrading agents, when foam was inoculated. Solid-media agar-plate tests were conducted for their potential to evaluate the biodegradation of polymeric particles by specific strains of microorganisms during 216 hours. The growth rate was defined. This technique provides a way of distinguishing the degradation abilities of microorganisms from the degradability of materials.

Palavras-chave : Biodegradation; polyurethane; castor oil; polyester; microorganisms.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons