详细信息
氧化石墨烯掺杂丝素蛋白复合材料的结晶和力学特性 ( EI收录)
Crystallinity and Mechanical Property of Silk Fibroin/Graphene Oxide Composites
文献类型:期刊文献
中文题名:氧化石墨烯掺杂丝素蛋白复合材料的结晶和力学特性
英文题名:Crystallinity and Mechanical Property of Silk Fibroin/Graphene Oxide Composites
作者:杨珊珊[1];沙金[1];赵海利[1];陈涛[1];谢林生[1];马玉录[1]
机构:[1]华东理工大学机械与动力工程学院绿色高效过程装备与节能教育部工程研究中心,上海200237
年份:2016
卷号:32
期号:1
起止页码:46
中文期刊名:高分子材料科学与工程
外文期刊名:Polymer Materials Science & Engineering
收录:CSTPCD;;EI(收录号:20161102103070);Scopus;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;
基金:国家自然科学基金资助项目(51273065);中央高校基本科研业务费专项资金(22A201514030)
语种:中文
中文关键词:丝素蛋白;氧化石墨烯;构象转变;结晶;复合材料
外文关键词:silk fibroin; graphene oxide; conformation transition; crystallinity; composites;
摘要:采用溶液混合法制备丝素蛋白(SF)/氧化石墨烯(GO)复合材料,并用扫描电镜(SEM)、傅里叶变换红外光谱、X射线衍射、动态力学分析表征了丝素蛋白分子链构象、微观形态和动态力学性能。结果表明,GO的掺杂促使SF向β-折叠构象转变,并且随着GO含量的提高,β-折叠的含量和材料拉伸储能模量(E')呈现先增后减的变化趋势,当GO质量分数为1.0%时达到最大值,此时复合材料的E'较SF膜提高了约157%。
Silk fibroin( SF) / graphene oxide( GO) composites were prepared by solution casting method. The SF molecular conformation,micromorphology and dynamic mechanical property of composites were analyzed by SEM,FTIR,XRD and dynamic mechanical analysis( DMA). It is found that the SF molecular conformation shows a transition from random coils to β-sheets along with incorporating GO into SF. With the GO content increasing,both β-sheets structure percentage and tensile storage modulus( E') trend to increase firstly,and then decrease,and both reach maximum values when the GO content is 1. 0wt%. The E' of composite films is improved by 157% in comparison with pristine SF film.
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