生物质基氧化石墨烯复合膜材料研究进展

Progress on biomass-based/GO composite film

近年来,生物质材料因生物相容性、无毒性、可生物降解性及可再生性等优点而受到广泛关注。因生物质材料在机械性能和功能性方面存在缺陷,故常通过添加增强材料来提高其性能。氧化石墨烯含有羟基、环氧化物、羰基和羧基等多种含氧官能团,可作为增强材料与聚合物产生强物理相互作用,从而大幅度提高材料的热稳定性、电学和机械性能。生物质材料与氧化石墨烯可通过共价或非共价作用等方式进行复合,制备性能优异的复合材料。综述了纤维素、半纤维素、木质素、壳聚糖和淀粉等生物质基氧化石墨烯复合膜材料的研究进展以及在生物医学、包装材料、传感器等领域的应用。

In recent years,biomass have been widely concerned by researchers,because of their biocompatibility,non-toxicity,biodegradability and renewability.Due to the deficiencies of mechanical properties and functionality,reinforcement materials were added into the matrix to improve the property.Graphene oxide(GO)can be used as a reinforcement to form strong physical interactions with polymers due to its multiple oxygen-containing functional groups including hydroxyl,epoxide,carbonyl and carboxyl groups,which can greatly improve the thermal stability,electrical and mechanical properties.Biomass materials and GO can be compounded by covalent or non-covalent reaction to prepare composite materials with excellent properties.The research progress of biomass-based/GO composite membrane materials such as cellulose,hemicellulose,lignin,chitosan and starch was reviewed.The performances and applications of the films in biomedicine,packaging materials,sensors and other fields resulted in expanding new applications and researching prospects of biomass-based composite materials.