将两种酿酒厂木质纤维素废料生态转化为生物复合材料填料：葡萄枝条和葡萄皮渣

Eco-Conversion of Two Winery Lignocellulosic Wastes into Fillers for Biocomposites: Vine Shoots and Wine Pomaces.

作者信息

David Grégoire, Vannini Micaela, Sisti Laura, Marchese Paola, Celli Annamaria, Gontard Nathalie, Angellier-Coussy Hélène

机构信息

JRU IATE 1208-Univ Montpellier, INRAE, 2 Place Pierre Viala, Bat 31, F-34060 Montpellier 01, France.

Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy.

出版信息

Polymers (Basel). 2020 Jul 10;12(7):1530. doi: 10.3390/polym12071530.

Two winery residues, namely vine shoots (ViSh) and wine pomace (WiPo), were up-cycled as fillers in PHBV-based biocomposites. Answering a biorefinery approach, the impact of a preliminary polyphenols extraction step using an acetone/water mixture on the reinforcing effect of fillers was assessed. Biocomposites (filler content up to 20 wt%) were prepared by melt-mixing and compared in terms of final performance (thermal, mechanical and barrier). It was shown that the reinforcing effect was slightly better in the case of vine shoots, while it was not significantly affected by the pre-treatment, demonstrating that these two winery residues could be perfectly used as fillers in composite materials even after an extraction process to maximize their potential of valorization.

两种酿酒厂残渣，即葡萄嫩枝（ViSh）和葡萄皮渣（WiPo），被升级循环利用作为基于聚（3-羟基丁酸酯-co-3-羟基戊酸酯）（PHBV）的生物复合材料的填料。按照生物精炼方法，评估了使用丙酮/水混合物进行初步多酚提取步骤对填料增强效果的影响。通过熔融共混制备了生物复合材料（填料含量高达20 wt%），并在最终性能（热性能、机械性能和阻隔性能）方面进行了比较。结果表明，葡萄嫩枝作为填料时增强效果略好，而预处理对其增强效果影响不显著，这表明即使经过提取过程以最大限度地提高其增值潜力，这两种酿酒厂残渣仍可完美地用作复合材料的填料。