The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling

LIU Li; YAO Wen-bin; ZHANG Wei; YU Wei-peng; LIU Yue

Volume 39 Issue 2

Apr. 2021

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LIU Li, YAO Wen-bin, ZHANG Wei, YU Wei-peng, LIU Yue. The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(2): 37-44.

Citation:

LIU Li, YAO Wen-bin, ZHANG Wei, YU Wei-peng, LIU Yue. The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(2): 37-44.

LIU Li, YAO Wen-bin, ZHANG Wei, YU Wei-peng, LIU Yue. The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(2): 37-44.

Citation:

LIU Li, YAO Wen-bin, ZHANG Wei, YU Wei-peng, LIU Yue. The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling[J]. JOURNAL OF BAMBOO RESEARCH, 2020, 39(2): 37-44.

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The Changes of Density and Porosity of Bamboo Material in the Process of Fiber Rolling

1. School of Engineering, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China;
2. Jiyang College, Zhejiang A&F University, Zhuji 311800, Zhejiang, China

Received Date: 2020-02-21
Available Online: 2021-04-29
Publish Date: 2021-04-29

Abstract

Abstract

In order to explore the changes of density and porosity of bamboo in the process of fiber manufacturing, the delamination phenomenon of bamboo cross-section under continuous rolling load was studied by using computer tomography technology, and the influence of rolling times on the porosity and compactness of bamboo was analyzed. The results showed that with the increase of rolling times, the continuous directional fiber manufacturing process of bamboo experienced several stages: morphological destruction, bamboo chip densification, bamboo chip cracking gap and bamboo fiber separation. The changes of different stages can be distinguished by the value of pore density ratio. The bamboo with complete fiber manufacturing had obvious index characteristics in CT value. When the gap ratio of bamboo was more than 80%, the density ratio was less than 5%, and the gap density ratio was greater than or equal to 25, the bamboo slices showed the state of complete fiber bundle separation.
- Computed tomography,
- CT value,
- Porosity,
- Densification,
- Roll fabricated fiber

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References(15)

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