小分子增塑剂对淀粉热塑化改性及性能影响的研究进展

Research Progress of Small Molecule Plasticizer on Thermoplasticizing Modification and Properties of Starch

目的综述小分子增塑剂对淀粉热塑化改性的最新进展和研究成果,以期为淀粉在包装材料领域的应用提供技术支撑。方法主要介绍小分子增塑剂对淀粉热塑加工和性能影响的最新进展,阐述小分子增塑剂对淀粉增塑行为和加工性能的影响,特别是小分子羟基多元醇类和胺基基团的胺类小分子;总结小分子接枝改性、氧化改性和交联改性等手段对淀粉加工性能和力学性能的研究成果。结论通过增塑剂复配,以及物理改性与化学改性相结合,有望提升淀粉材料的热塑加工和力学性能。

Starch is one of the most abundant natural macromolecules,and is a very important biodegradable material and renewable resource.However,starch is not thermoplastic and can't be melted,by plasticizing and destroying the intramolecular and intermolecular hydrogen bonds in starch,the melting processing and utilization of starch materials can be realized,which has great application potential in the field of packaging materials.In this paper,the latest progress of the influence of small molecule plasticizer on starch thermoplastic processing and properties is introduced,and the influence of small molecule plasticizer on starch plasticizing behavior and processing properties is elaborated,especially the small molecule withhydroxyl polyols and small molecule of amine with amine groups.The research results of graft modification of small molecules,oxidation modification and crosslinking modification on starch processing behavior and mechnical properties are summarized.It is also pointed out that the thermoplastic processing and mechnical performance improvement of starch materials can be achieved by the combination of plasticizer,physical modification and chemical modification.