光交联在淀粉塑料中的应用进展

Progress of the Application of Photocrosslinking in Starch Plastics

由于能源匮乏以及环境污染问题日益严重,用环境友好型生物降解塑料代替石油基塑料是当前研究的热点。天然淀粉具有来源丰富、可完全降解等优点,因此,淀粉塑料是目前发展较快的生物降解塑料之一。然而,淀粉塑料在力学性能、耐水性能等方面存在不足,光交联改性可使淀粉中的羟基之间或与其他基团进行交联反应形成网状结构,从而有效提高淀粉塑料的性能。从淀粉塑料的分类出发,综述了国内外光交联对淀粉塑料改性的最新研究进展,并对其发展方向进行了展望。

Due to the shortage of energy and the problem of environmental pollution, the use of environmentally friendly biodegradable plastics instead of petroleum-based plastics became a hotspot. And starch has the advantages of rich sources and complete degradation and so on. So starch plastic is one of the popular biodegradable plastics. But the mechanical properties of starch, water resistance and other aspects of the lack of photocrosslinking can be modified on the hydrophilic hydroxyl of starch to form a cross-linked network structure. Based on the classification of starch and plastic, the research progress of modification of starch plastic at home and abroad was reviewed, and the development direction of photocrosslinking was also discussed.