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摘要:
Urea-formaldehyde (UF) resin is widely used as an adhesive for the manufacture of a range of wood and fiber based products. Although the microstructure of this resin has been examined at high resolution by field-emission scanning electron microscopy and atomic force microscopy, transmission electron microscopy (TEM) has thus far not been used, perhaps because of difficulties in ultrathin sectioning this resin in cured (polymerized) state. In the technical note presented here, a novel sample preparation method is described which enabled us to examine the microstructural morphology of UF resin by transmission electron microscopy in ultrathin sections, revealing the presence of spherical particles within the resin. Our initial attempt to ultrathin section the resin directly was not successful as it was too brittle to trim blocks for sectioning. Then, we developed a sample preparation technique that involved impregnation ofPinus radiatawood tissues with the UF resin, and then embedding of resin impregnated wood tissues with Spurr’s low viscosity embedding medium, which has been widely employed in plant and wood ultrastructure work. The TEM images illustrated and the information on the microstructural morphology of the UF resin presented are based on this novel sample preparation approach.
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篇名 Short Communication—A Novel Sample Preparation Method That Enables Ultrathin Sectioning of Urea-Formaldehyde Resin for Imaging by Transmission Electron Microscopy
来源期刊 显微镜研究(英文) 学科 化学
关键词 UREA-FORMALDEHYDE (UF) Resin ULTRATHIN Sectioning Transmission Electron Microscopy PINUS RADIATA VENEER Microstructure Spherical Particles
年,卷(期) 2013,(1) 所属期刊栏目
研究方向 页码范围 1-6
页数 6页 分类号 O6
字数 语种
DOI
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研究主题发展历程
节点文献
UREA-FORMALDEHYDE
(UF)
Resin
ULTRATHIN
Sectioning
Transmission
Electron
Microscopy
PINUS
RADIATA
VENEER
Microstructure
Spherical
Particles
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
显微镜研究(英文)
季刊
2329-3306
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
34
总下载数(次)
0
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