Research progress of starch based biodegradable materials

Number of views： 114

分享到:

摘要：

目前,人们日常生活中使用的塑料制品主要通过石油化工生产,考虑到石油资源短缺以及传统塑料的不可降解性,开发绿色、低成本、可降解和可循环的塑料制品显得日益重要.淀粉基材料具有来源广泛、可再生、性能可调控性强等优势,是一种取代传统不可降解塑料的优良选择.然而,淀粉基材料具有强亲水性,遇水容易发生溶胀变形甚至溶解,导致其机械强度和韧性急剧下降,难以满足实际应用需求,所以提升机械强度与疏水性能是淀粉基材料研究需要解决的关键瓶颈.鉴于此,系统总结了淀粉基材料当前的研究进展,重点探讨淀粉基材料的性能提升策略及其潜在构效关系.首先对比了淀粉基材料的物理改性与化学改性方法的优缺点,然后分析了在增塑剂辅助下淀粉表面羟基与增塑剂的结合使得淀粉基材料具备热塑性,介绍了通过添加增强材料来增强淀粉基材料的机械性能,最后对淀粉基材料的研究前景和存在的问题进行了展望.

Nowadays,the plastic products used in people's daily life are mainly prepared through the petrochemical industry.Considering the shortage of petroleum resources and the non-degradability of traditional plastics,it is increasingly significant to develop green,low-cost,degradable and recyclable plastic products.Starch-based materials have many advantages of renewability,broad resource of raw materials and high performance manipulation and so on,making them a promising alternative to traditional non-degradable plastics.However,starch-based materials possess strong hydrophilicity and are prone to swell,deform and even dissolve in water,resulting in a sharp decline in the mechanical strength and toughness,which make them difficult to meet the demands of practical applications.Therefore,improving the mechanical strength and hydrophobic property is a key bottleneck in the study of starch-based materials.This review systematically summarizes the research progress on starch-based materials,and focuses on the modified strategies and potential structure-activity relationships of starch-based materials.The advantages and disadvantages of the physical or chemical modification methods are firstly discussed for starch-based materials.Then,in the presence of plasticizer,hydroxyl species on the starch surface can combine with plasticizer,making the starch-based materials thermoplastic.Moreover,enhancing the mechanical property of starch-based materials is further introduced through introducing reinforcing materials.Finally,the research prospects and existing problems of starch-based materials have been prospected.

作者：

高书燕李家栋陈野刘旭坡齐静

Gao Shuyan;Li Jiadong;Chen Ye;Liu Xupo;Qi Jing(School of Materials Science and Engineering,Henan Normal University,Xinxiang 453007,China)

机构地区：

betway官方app 材料科学与工程学院

出处：

《betway官方app 学报:自然科学版》 CAS 北大核心 2023年第5期1-13,I0002,F0002,共15页

Journal of Henan Normal University(Natural Science Edition)

基金：

国家自然科学基金区域创新发展联合基金重点支持项目(U22A20253) 河南省重点研发与推广专项(科技攻关)项目(222102520038,212102210651) 中国博士后科学基金第69批面上项目(2021M690930) 河南省高等学校重点科研项目计划(21A430020)。

关键词：

可生物降解材料淀粉改性热塑性淀粉增塑剂增强材料