Frequency-dependent viscoelastic properties of Chinese fir (Cunninghamia lanceolata) under hygrothermal conditions. Part 1: moisture adsorption-Reference-Cited by-同舟云学术

Frequency-dependent viscoelastic properties of Chinese fir (Cunninghamia lanceolata) under hygrothermal conditions. Part 1: moisture adsorption

Published:2019-03-30 Issue:8 Volume:73 Page:727-736
ISSN:1437-434X
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Zhan Tianyi¹²,Jiang Jiali²,Lu Jianxiong²,Zhang Yaoli¹,Chang Jianmin³

Affiliation:

1. College of Materials Science and Engineering, Nanjing Forestry University , Nanjing 210037 , P.R. China

2. Research Institute of Wood Industry of Chinese Academy of Forestry , Hunan Collaborative Innovation Center for Effective Utilizing of Wood and Bamboo Resources , Beijing 100091 , P.R. China

3. College of Materials Science and Technology, Beijing Forestry University , Beijing 100083 , P.R. China

Abstract

Abstract To elucidate the frequency-dependent viscoelasticity of wood under a moisture non-equilibrium state, changes in stiffness and damping as a function of frequency were investigated during the moisture adsorption process. The moisture adsorption processes were carried out at six temperatures (30–80°C) and three relative humidity levels (30, 60 and 90% RH). During the moisture adsorption process, the wood stiffness decreased, and damping increased with the increment of moisture content (MC). Regardless of the moisture adsorption time, the wood stiffness increased, and damping decreased with the increasing testing frequency. Based on the re-organized Williams-Landel-Ferry (WLF) model, the time-moisture superposition (TMS) relation was assumed to be applicable for developing a master curve of wood stiffness during the moisture adsorption process. The frequency ranges of the stiffness master curves spanned from 16 to 23 orders of magnitude at temperatures ranging from 30 to 80°C. However, the TMS relation was not able to predict the wood damping properties during the moisture adsorption process due to the multi-relaxation system of the wood and the non-proportional relationship between free volume and MC at transient moisture conditions.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Jiangsu Province

Nanjing Forestry University

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2018-0208/pdf

Reference59 articles.

1. Amada, S., Lakes, R.S. (1997) Viscoelastic properties of bamboo. J. Mater. Sci. 32:2693–2697.

2. Arbe, A., Moreno, A.J., Allgaier, J., Ivanova, O., Fouquet, P., Colmenero, J., Richter, D. (2016) Role of dynamic asymmetry on the collective dynamics of comblike polymers: insights from neutron spin-echo experiments and coarse-grained molecular dynamics simulations. Macromolecules 49:4989–5000.

3. Backman, A.C., Lindberg, K.A.H. (2001) Difference in wood material responses for radial and tangential direction as measured by dynamic mechanical thermal analysis. J. Mater. Sci. 36:3777–3783.

4. Chevali, V.S., Dean, D.R., Janowski, G.M. (2009) Flexural creep behavior of discontinuous thermoplastic composites: non-linear viscoelastic modeling and time–temperature–stress superposition. Compos. A: Appl. Sci. Manuf. 40:870–877.

5. Chowdhury, S., Frazier, C.E. (2013) Thermorheological complexity and fragility in plasticized lignocellulose. Biomacromolecules 14:1166–1173.

Cited by 15 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Effects of the ice formation and its content on viscoelastic characteristics of wood exposure to low temperatures ranging from −125°C to 25°C;Wood Material Science & Engineering;2024-05-23

2. Changes in Temperature and Vapor-Pressure Behavior of Bamboo Scrimber in Response to Hot-Pressing Parameters;Forests;2024-03-28

3. Scaling relations in rheology of concentrated starches and maltodextrins;Food Hydrocolloids;2022-03

4. Comparative investigation on the orthotropic viscoelastic properties of wood during cooling and heating variations;Wood Material Science & Engineering;2021-12-25

5. The viscoelasticity and deformation mechanism of Taxodium hybrid ‘Zhongshanshan’ wood by dynamic mechanical analysis;BioResources;2021-08-30