Biodegradation of the Films of PP, PHBV and Its Blend in Soil

S. P. C. Goncalves; S. M. Martins-Franchetti; D. L. Chinagiia

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Biodegradation of the Films of PP, PHBV and Its Blend in Soil

机译：PP，PHBV及其混合物在土壤中的生物降解

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Films of poly(hydroxybutyrate-co-hydro-xyvalerate) (PHBV) and polypropylene) (PP), PP/PHBV (4:1), blends were prepared by melt-pressing and investigated with respect to their microbial degradation in soil after 120 days. Biodegradation of the films was evaluated by Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, and X-ray diffraction. The biodegradation and/or bioerosion of the PP/PHBV blend was attributed to microbiological attack, with major changes occurring at the interphases of the homopolymers. The PHBV film was more strongly biodegraded in soil, decomposing completely in 30 days, while PP film presented changes in amorphous and interface phase, which affected the morphology.

机译：聚（羟基丁酸酯-共氢-羟基戊酸酯）（PHBV）和聚丙烯）（PP），PP / PHBV（4：1）共混物的膜通过熔融压制制备，并研究了120℃后它们在土壤中的微生物降解情况天。膜的生物降解通过傅里叶变换红外光谱，扫描电子显微镜，差示扫描量热法和X射线衍射进行评估。 PP / PHBV共混物的生物降解和/或生物侵蚀归因于微生物攻击，均聚物的相间发生了重大变化。 PHBV膜在土壤中被更强烈地生物降解，在30天内完全分解，而PP膜呈现出非晶相和界面相的变化，从而影响了形态。

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来源
《Journal of Polymers and the Environment》 |2009年第4期|280-285|共6页
作者
S. P. C. Goncalves; S. M. Martins-Franchetti; D. L. Chinagiia;
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作者单位

Department of Biochemistry and Microbiology, UNESP-Sao Paulo State University, Avenida 24-A, 1515 Bela Vista, Rio Claro, SP, Brazil;

Department of Biochemistry and Microbiology, UNESP-Sao Paulo State University, Avenida 24-A, 1515 Bela Vista, Rio Claro, SP, Brazil;

Department of Physics, UNESP-Sao Paulo State University, Rio Claro, SP, Brazil;

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正文语种 eng
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关键词
biodegradation; blend; FTIR; DSC; X-ray;

机译：生物降解混合;FTIR;DSC;X光;

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Biodegradation of the Films of PP, PHBV and Its Blend in Soil

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