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Polyolefins Journal، جلد ۳، شماره ۱، صفحات ۵۹-۶۸
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عنوان انگلیسی Biodegradation of PP films modified with organic pro-degradant: natural ageing and biodegradation in soil in respirometric test
چکیده انگلیسی مقاله In this study, PP films were modified with an organic pro-degradant in different concentrations (1, 2 and 3wt.%), exposed in the first step of degradation to natural ageing for 100 days followed by biodegradation insimulated soil in the respirometric test for 100 days. At the end of the combined degradation process the PP sampleswere characterized according to their morphological and physical properties and the CO2 generated during thebiodegradation in soil was monitored. The CO2 production by the PP films modified with the organic pro-degradantwas proportional to the oxidation rate and weight loss of the samples. The reduction in the average viscosimetricmolecular weight could be attributed to chain scission due to the weathering conditions to which the samples wereexposed (natural ageing followed by biodegradation in soil). Scanning electron microscopy (SEM) of the PP filmsrevealed surface deterioration of the films with the organic pro-degradant after the combined degradation process.
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نویسندگان مقاله larissa montagna |
laboratory of polymeric materials, lapol, federal university of rio grande do sul – ufrgs, avenida bento gonçalves 9500, porto alegre, brasil.

آندره لوییس catto | andre luis
laboratory of polymeric materials, lapol, federal university of rio grande do sul – ufrgs, avenida bento gonçalves 9500, porto alegre, brasil.

ماریا madalena forte | maria madalena
laboratory of polymeric materials, lapol, federal university of rio grande do sul – ufrgs, avenida bento gonçalves 9500, porto alegre, brasil.

روث marlene santana | ruth marlene
laboratory of polymeric materials, lapol, federal university of rio grande do sul – ufrgs, avenida bento gonçalves 9500, porto alegre, brasil.

نشانی اینترنتی http://poj.ippi.ac.ir/article_1279_355.html
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