Biodegradable Composites from Sugar Beet Pulp and Poly(lactic acid)

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• 作者：LinShu Liu ; Marshall L. Fishman ; Kevin B. Hicks ; and Cheng-Kung Liu
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2005
• 出版时间：November 16, 2005
• 年：2005
• 卷：53
• 期：23
• 页码：9017 - 9022
• 全文大小：584K
• 年卷期：v.53,no.23(November 16, 2005)
• ISSN：1520-5118

文摘

Sugar beet pulp and poly(lactic acid) (PLA) composites were prepared by compression-heating. Theresultant thermoplastics had a lower density, but they had tensile strength similar to that of pure PLAspecimens as well as the same geometric properties. Tensile properties depended on the initial watercontent of sugar beet pulp and the process by which composites were manufactured. In comparisonwith sugar beet pulp, the composite showed improved water resistance. This can be attributed to thehydrophobic character of PLA and pulp-matrix interactions. The composite thermoplastics showedsuitable properties for potential use as lightweight construction materials.Keywords: Sugar beet pulp; poly(lactic acid); compression-heating; composite