کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5204244 1381954 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laboratory investigation of biodegradability of a polyurethane foam under anaerobic conditions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Laboratory investigation of biodegradability of a polyurethane foam under anaerobic conditions
چکیده انگلیسی
Polyurethane (PU) foams can be used in many remediation applications as an isolation material to prevent the release of hazardous materials into the environment. The integrity of a PU foam was investigated in this study using short-term accelerated laboratory experiments including bioavailability assays, soil burial experiments, and accelerated bioreactors to determine the fate of PU foam in the soil where anaerobic processes are dominant. The experimental results have shown that the studied PU foam is likely not biodegradable under anaerobic conditions. Neither weight loss nor a change in the tensile strength of the PU material after biological exposure was observed. The FT-IR chemical signature of the PU foams was also nearly identical before and after biological exposure. The composition of the PU material (aromatic polyester and polyether PU) used in this study could have played a significant role in its resistance to microbial attack during the short-term accelerated experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 92, Issue 8, August 2007, Pages 1599-1610
نویسندگان
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