Abstract
AbstractBiodegradation of plasticized cellulose acetate (PCA) was established with a standard municipal solid waste (ED 73). The relative percent weight loss of the specimen was measured, and the aerobic biodegradation was evaluated in a controlled aerobic composting system that was designed to capture CO2 produced by microbiological metabolism. Infrared spectra (FTIR), mechanical properties and molecular weight of degraded PCA films indicate that the lower molecular weight fractions, such as plasticizer and lower substituted fractions of PCA, are biodegraded and removed preferentially from the PCA.
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