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Journal of Polymers and the Environment - In this paper gelatin beads reinforced with natural hemp hurd have been produced as pH sensitive devices for the release of eugenol, as green pesticide.... 相似文献
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Rachele Pucciariello Maurizio D’Auria Vincenzo Villani Gaetano Giammarino Giuliana Gorrasi Galia Shulga 《Journal of Polymers and the Environment》2010,18(3):326-334
Polymer blends between lignin, a natural, widely available, no-cost material, and Poly(ε-caprolactone) (PCL), a biodegradable
polymer, have been prepared using the ‘clean’, friendly to the environment, technique of the High Energy Ball Milling (HEBM).
Two kinds of lignin have been used, Straw lignin, obtained through the Steam Explosion process (SE lignin), and/or Lignosulphonated
one (LS lignin). The tensile mechanical tests have shown that, at certain specific compositions, the blends, in particular
those with both SE and LS lignin, have good mechanical properties. In particular, by varying the blend composition it is possible
to obtain materials with tuneable properties, therefore useful for different applications. Dynamic-Mechanical-Thermal Analysis
(DMTA) reveals substantial immiscibility of the blends. Experiments of UV irradiation show that lignin acts as an UV stabilizer
for PCL. The effect is higher with SE lignin, likely due to its low molecular weight, which allows the short lignin chains
to diffuse more easily within the amorphous regions of PCL. 相似文献
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Jesús Ambrosio-Martin María José Fabra Amparo López-Rubio Giuliana Gorrasi Andrea Sorrentino Jose M. Lagaron 《Journal of Polymers and the Environment》2016,24(3):241-254
The aim of this study was the assessment of high energy ball milling technique to develop poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) nanocomposites containing bacterial cellulose nanowhiskers (BCNW). Crystallization behaviour of PHBV/BCNW nanocomposites was studied under non-isothermal and isothermal conditions using differential scanning calorimetry. The changes in PHBV crystalline structure were also studied using X-ray diffraction. The results confirmed that BCNW acted as nucleating agents and, hence, favored the crystallization of the PHBV. The oxygen permeability of the nanocomposites was reduced by ~22 % when compared to that of the neat PHBV. This work provides a new insight into the development of polyhydroxyalkanoate composites by means of the high energy ball milling technique. 相似文献
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Gorrasi Giuliana Viscusi Gianluca Gerardi Carmela Lamberti Elena Giovinazzo Giovanna 《Journal of Polymers and the Environment》2022,30(9):3609-3621
Journal of Polymers and the Environment - Grape pomace, as by-product of wine making, is a source of polyphenols, fibers, fatty acids, metals, and organic acids, which could be used as raw... 相似文献
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