氧化石墨烯/羧甲基纤维素钠/海藻酸钠复合材料的制备与性能研究  

Preparation and research of graphene oxide/sodium carboxymethylcellulose/sodium alginate composite

作　　者：刘浩怀[1] 何芝洲[1] 刘鹏[1] 许庆陵[1] 

机构地区：[1]广州大学化学化工学院,分析测试中心,广州510006

出　　处：《化工新型材料》2017年第1期103-105,共3页New Chemical Materials

基　　金：国家自然科学基金项目(51203028);广州市属高校科技计划项目(1201431358)

摘　　要：采用改进的Hummer法和超声波剥离法制备了纳米氧化石墨烯悬液,再将其与羧甲基纤维素钠、海藻酸钠复合制备了氧化石墨烯/羧甲基纤维素钠/海藻酸钠(GO/CMC/SA)复合材料,并通过吸水性实验和拉伸实验方法对其结构和性能进行了研究。结果表明,添加GO和CMC可显著提高GO/CMC/SA复合材料的力学性能和吸水性,当GO含量为7%,CMC含量为15%时,复合材料的干态拉伸强度最大达到124.5MPa,复合材料湿态拉伸强度最大达到31.0MPa;吸水率达到196%,在生物医学领域具有较大的应用潜力。Graphene oxide was prepared by the modified Hummers method and ultrasonic treatment,and then the achieved graphene oxide suspension was incorporated with sodium alginate and sodium carboxymethyl cellulose to prepare a graphene oxide/sodium carboxymethylcellulose/sodium alginate（GO/CMC/SA）composite.The properties of composite were investigated by water absorption test and mechanical testing.The results showed that incorporation of GO and CMC into the SA matrix can markedly increase the mechnical strength and water absorption of GO/CMC/SA composite.When incorporated of 7%（wt）GO and 15%（wt）CMC into composite,the dry-state mechnical strength of GO/CMC/SA arrived at the maximum 124.5MPa,and the wet-state mechnical strength of GO/CMC/SA also arrived at the maximum 31.0MPa.Meanwhile,the water absorption of GO/CMC/SA reached at 196%.GO/CMC/SA composite may have a good prospect to be used in the field of biomedicine.

关 键 词：氧化石墨烯 海藻酸钠 羧甲基纤维素钠 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]