<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The paper presents the results of the degradation of two commercial packaging materials CONS-PET and BioPlaneta in the compost and distilled water at 70°C. The materials containing polylactide (PLA), CONS-PET 13% and BioPlaneta 20%, aliphatic-aromatic copolyester terephthalic acid/adipic acid/1,4-butanediol (BTA) and commercial additives degraded under the industrial composting conditions (composting pile or container) and in distilled water at 70°C in the laboratory holding oven. Distilled water provided the conditions for the hydrolytic (abiotic) degradation of the materials. Weight loss, changes of molecular weight, dispersity monitored via the GPC technique and the macroscopic surface changes of the tested materials were monitored during the experiments. The investigated systems show similar trends of degradation, however on the last day of the incubation the decrease of the molecular weight was higher in water than under the industrial composting conditions. The results indicate that commercial packaging materials can be degraded both while composting ((bio)degradation) and during the incubation in distilled water at 70°C (abiotic hydrolysis).</p></abstract>

The paper presents the results of the degradation of two commercial packaging materials CONS-PET and BioPlaneta in the compost and distilled water at 70°C. The materials containing polylactide (PLA), CONS-PET 13% and BioPlaneta 20%, aliphatic-aromatic copolyester terephthalic acid/adipic acid/1,4-butanediol (BTA) and commercial additives degraded under the industrial composting conditions (composting pile or container) and in distilled water at 70°C in the laboratory holding oven. Distilled water provided the conditions for the hydrolytic (abiotic) degradation of the materials. Weight loss, changes of molecular weight, dispersity monitored via the GPC technique and the macroscopic surface changes of the tested materials were monitored during the experiments. The investigated systems show similar trends of degradation, however on the last day of the incubation the decrease of the molecular weight was higher in water than under the industrial composting conditions. The results indicate that commercial packaging materials can be degraded both while composting ((bio)degradation) and during the incubation in distilled water at 70°C (abiotic hydrolysis).

A preliminary study of the degradation of selected commercial packaging materials in compost and aqueous environments

Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. C. Skłodowskiej 34, 41-819 Zabrze, Poland

Institute of Chemistry, Environment Protection and Biotechnology, Jan Długosz University, Armii Krajowej 13/15, 42-200 Częstochowa, Poland

Polish Journal of Chemical Technology

The paper presents the results of the degradation of two commercial packaging materials CONS-PET and BioPlaneta in the compost and distilled water at 70°C. The...

A preliminary study of the degradation of selected commercial packaging materials in compost and aqueous environments

Pubblicato online: 17 mar 2011

Pagine: 55 - 57

DOI: https://doi.org/10.2478/v10026-011-0011-z

Parole chiave
Polylactide, PLA, aliphatic-aromatic copolyester, BTA, (bio)degradation, industrial composting pile, container system, hydrolytic degradation

This content is open access.

A preliminary study of the degradation of selected commercial packaging materials in compost and aqueous environments

Pubblicato online: 17 mar 2011

Pagine: 55 - 57

DOI: https://doi.org/10.2478/v10026-011-0011-z

Parole chiavePolylactide, PLA, aliphatic-aromatic copolyester, BTA, (bio)degradation, industrial composting pile, container system, hydrolytic degradation

This content is open access.

Parole chiave
Polylactide, PLA, aliphatic-aromatic copolyester, BTA, (bio)degradation, industrial composting pile, container system, hydrolytic degradation