The influence of soil and landfill leachate microorganisms in the degradation of PVC/PCL films cast from DMF
Carregando...
Data
2012-01-01
Autores
Campos, Adriana de [UNESP]
Marconato, José C. [UNESP]
Martins-Franchetti, Sandra M. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Polímeros
Resumo
While the use of plastics continues to increase in our daily lives in a growing range products, these materials are very persistent in the environment. The blending of aliphatic polyesters with other thermoplastic polymers is a profitable way of producing materials with changed physical properties and biodegradability, which can facilitate microbial adhesion to the polymer matrix and help to reduce (post-consumer) degradation time of these materials in landfills. This study was an investigation of the biodegradation of films of blends of poly(vinyl chloride (PVC) and poly(ε-caprolactone) (PCL) by soil microorganisms and leachate, by means of respirometry, infrared absorption spectroscopy (FTIR), differential calorimetry scanning (DSC), scanning electron microscopy (SEM), contact angle and weight loss. The results showed that in the soil, the films suffered oxidative biodegradation. The PCL promoted degradation of the PVC in the film of PVC/PCL and the PVC inhibited the rapid degradation of the PCL.
Descrição
Palavras-chave
Polycaprolactone, poly(vinyl chloride), soil, leachate, biodegradation
Como citar
Polímeros. Associação Brasileira de Polímeros, v. 22, n. 3, p. 220-227, 2012.