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Accession number;99A1001742
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| Title;Spectrophotometric studies on the degradation of some biodegradable plastics. |
| Author;
ITO TAKESHI
(Ind. Res. Inst. of Nagano)
SAITO NORIHIRO
(Ind. Res. Inst. of Nagano)
MIZUNO WATARU
(Toyama Ind. Technol. Center)
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Journal Title;Naganoken Kogyo Shikenjo Kenkyu Hokoku
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Journal Code:Y0010A
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ISSN:0913-672X
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VOL.18;NO.;PAGE.17-20(1999)
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| Figure&Table&Reference;FIG.7, TBL.1, REF.8 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Degradability of two types of biodegradable plastics, that is, poly(3-hydroxybutyrate-co-3-hydoroxyvalerate) and a starch/polyvinyl alcohol composite were evaluated by means of spectrophotometric analyses. The molded dumbbell specimens of these plastics were soaked in a aeration tank for 6 months and were subjected to mainly surface degradation by the activated sludge. The spectrophoptometric analyses of the raw and soaked specimens were made by photo-acoustic spectrometry(PAS) and 13C-solid state NMR. From the results obtained, the degradabilities of two materials were discussed. (author abst.) |
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