扫描热显微镜技术在生物质微观特性研究中的应用

徐德良; 周定国; 徐朝阳; 孙军; 王思群; 付鑫

doi:10.3969/j.issn.0253-2417.2015.04.001

扫描热显微镜技术在生物质微观特性研究中的应用

徐德良^1,2,
周定国¹,
徐朝阳¹,
孙军¹,
王思群^2, ,,
付鑫¹

1. 南京林业大学材料科学与工程学院, 江苏南京 210037;
2. 美国田纳西大学再生炭中心, 田纳西州诺克斯维尔 37996-4570

详细信息

通讯作者:
王思群,教授,博士,博士生导师,主要从事生物质及生物质复合材料研究,E-mail:swang@utk.edu。

中图分类号: TQ35;TK6
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出版历程
- 收稿日期: 2014-05-03
- 发布日期: 2015-08-27

Micro Characteristics of Biomass Investigated by Scanning Thermal Microscopy

1. College of Materials Science & Engineering, Nanjing Forestry University, Nanjing 210037, China;
2. Center for Renewable Carbon, University of Tennessee, Knoxville 37996-4570, USA

摘要

摘要: 为了探讨生物质材料微观导热性能,以红橡和稻草为研究对象,使用扫描热显微镜技术(SThM)研究2种生物质材料细胞壁层级的微观传热特性及微观结构特性。研究结果表明,SThM的热传导模式可以对生物质细胞结构进行较好的扫描成像,2种生物质细胞壁在横切面的导热特性近似,即细胞壁的胞间层(CML)导热性能明显低于S2层导热性能,电流值相差1 μA左右。
- 扫描热显微镜技术 /
- 稻草 /
- 红橡 /
- 细胞壁 /
- 传热特性
Abstract: The application of scanning thermal microscopy(SThM) technique in the studies of bio-composites interface characteristics and the thermal conductivity characteristics in micro-scale of biomass materials was discussed using red oak and rice straw cell as research objects. The results indicated that the thermal conductivity mode of SThM could imaged the microstructure of biomass cell very well, and the thermal conductivity characteristics of these two biomass were similar. This showed that the thermal conductivity of S2 layer was higher than that of middle lamella of cell wall(CML).
- SThM /
- rice straw /
- red oak /
- cell wall /
- thermal conductivity properties

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