The orthotropic viscoelastic properties of Chinese fir wood during the temperature ramping process

Li, Zhu; Jiang, Jiali; Lyu, Jianxiong

doi:10.1080/07373937.2019.1642913

Cited by 5 publications

(1 citation statement)

References 46 publications

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“…Diverse types of hemicelluloses have different molecular masses and are independent of each other, as such low-molecular-mass hemicelluloses have a lower glass transition temperature. Therefore, the α mechanical relaxation process could be due to the glass transition of the relatively low-molecular-weight hemicelluloses (Li et al 2020). An additional loss peak (β) appeared at an approximate temperature of 0 °C.…”

Section: Typical Storage Modulus and Loss Modulus Of Taxodium Hybrid 'Zhongshanshan' Woodmentioning

confidence: 99%

The viscoelasticity and deformation mechanism of Taxodium hybrid ‘Zhongshanshan’ wood by dynamic mechanical analysis

Zhu

Zhang

Biao

2021

BioRes

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The viscoelasticity of Taxodium hybrid ‘Zhongshanshan’ wood, while undergoing hydrothermal processing, was investigated via dynamic thermomechanical analysis. The results showed that the elastic deformation and viscous deformation of the Taxodium hybrid ‘Zhongshanshan’ heartwood were greater than the sapwood. The heartwood average storage modulus and average loss modulus were greater than the sapwood. The difference between the heartwood and sapwood had little effect on the average glass transition temperature of their hemicellulose, which was approximately 74 °C. The radial average storage modulus was greater than the tangential, and the difference between the average loss modulus in the radial and tangential directions was negligible. The average glass transition temperature in the radial direction was slightly lower than the tangential direction. As the moisture content increased, the average storage modulus and its average hemicellulose glass transition temperature decreased. The average glass transition temperature tended to be lower as the moisture content increased. This study revealed the structural deformation and molecular movement of Taxodium hybrid ‘Zhongshanshan’ wood, while undergoing hydrothermal processing; this has important theoretical value for understanding its characteristics as well as its rational and efficient usage.

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Section: Typical Storage Modulus and Loss Modulus Of Taxodium Hybrid 'Zhongshanshan' Woodmentioning

confidence: 99%

The viscoelasticity and deformation mechanism of Taxodium hybrid ‘Zhongshanshan’ wood by dynamic mechanical analysis

Zhu

Zhang

Biao

2021

BioRes

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show abstract

Drying kinetics inEucalyptus urophyllawood: analysis of anisotropy and region of the stem

et al. 2021

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Temperature and time dependence of orthotropic viscoelastic properties of moist wood determined in tensile mode

Jiang

Lyu

2022

Wood Material Science & Engineering

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The orthotropic viscoelastic properties of Chinese fir wood during the temperature ramping process

Cited by 5 publications

References 46 publications

The viscoelasticity and deformation mechanism of Taxodium hybrid ‘Zhongshanshan’ wood by dynamic mechanical analysis

The viscoelasticity and deformation mechanism of Taxodium hybrid ‘Zhongshanshan’ wood by dynamic mechanical analysis

Drying kinetics inEucalyptus urophyllawood: analysis of anisotropy and region of the stem

Temperature and time dependence of orthotropic viscoelastic properties of moist wood determined in tensile mode

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