Chiellini Emo, Cinelli Patrizia, Ilieva Vassilka I, Martera Martina
Laboratorio Materiali Polimerici Bioattivi per Applicazioni Biomediche ed Ambientali, UdR-Consorzio INSTM, Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, 56126 Pisa, Italy.
Biomacromolecules. 2008 Mar;9(3):1007-13. doi: 10.1021/bm701041e. Epub 2008 Feb 8.
Algae constitute a largely available, low value material from renewable resources of marine origin to be used for the production of eco-compatible composites. Fibers of the green alga Ulva armoricana from the French coast were positively evaluated for the production of composites with a hydrophilic, eco-compatible polymer, such as poly(vinyl alcohol) (PVA) as continuous matrix by casting of aqueous suspensions and compression molding. PVA, Ulva, and starch were also successfully processed by the melt in the presence of glycerol. Positive results were obtained for film-forming properties and mechanical characteristics also with limited amounts of PVA (40%) attesting for Ulva suitability to be introduced in composites (up to 30%). Degradation in soil of Ulva and an Ulva-based composites outlined a rapid mineralization of Ulva in the selected medium (over 80% in 100 days) while the composite samples underwent a mineralization rate affected by the different component propensity to degradation.
藻类是一种大量可得的、来自海洋可再生资源的低价值材料，可用于生产生态兼容复合材料。法国海岸的绿藻石莼的纤维在与亲水性、生态兼容聚合物（如聚乙烯醇（PVA））作为连续基体通过浇铸水性悬浮液和压缩成型制备复合材料方面得到了积极评价。PVA、石莼和淀粉在甘油存在下也成功地通过熔融加工。对于成膜性能和机械特性，使用有限量的PVA（40%）也获得了积极结果，这证明石莼适合引入复合材料中（高达30%）。石莼和基于石莼的复合材料在土壤中的降解表明，在选定介质中石莼能快速矿化（100天内超过80%），而复合材料样品的矿化速率受不同组分降解倾向的影响。
