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Effect of Temperature on Color and Chemical Composition of Poplar Powder Compacts During Warm-press Forming by Zhizhong Long; Liqiang Zhang; Qingding Wu; Zhili Tan; Pengcheng Guo is a Engineering article available to read on EtoBox.

What is Effect of Temperature on Color and Chemical Composition of Poplar Powder Compacts During Warm-press Forming about?

The color parameters of untreated wood powder and wood powder after warm-press forming were measured according to standard colorimetric systems. The composition of the sample was tested by wet chemistry technique. The chemical compositions of the sample after warm-press forming were analyzed by using X-ray photoelectron spectroscopy (XPS) and UV-Vis. The results showed that as the forming temperature increased, the lignin, the extracts and the absorption in the visible range increased, while the cellulose and the O/C values decreased. Besides, the color of the sample became darker. The changes in the chemical composition on the surface of the wood powder compact induced the color change.

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Author

Zhizhong Long; Liqiang Zhang; Qingding Wu; Zhili Tan; Pengcheng Guo

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Engineering (Physical Sciences)