Wood quality assessment of Pinus radiata (radiata pine) saplings by dynamic mechanical analysis

M Sharma*, M Brennan, SS Chauhan, KM Entwistle, CM Altaner, PJH Harris

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

The use of dynamic mechanical analysis was explored as a possible method of screening for wood quality in breeding programmes. Viscoelastic properties along the grain of wood from 18-month-old Pinus radiata saplings were measured using a humidity-controlled dynamic mechanical analyser. Storage modulus and tan were determined independently for opposite wood (OW) and compression wood (CW) in 25 trees in the temperature range from 10 to 45°C at 5°C intervals at three frequencies (0.1, 1 and 10 Hz) at constant moisture content of 9%. Storage modulus and tan were frequency and temperature dependent. The two wood types did not differ significantly in their storage modulus. But OW exhibited significantly higher tan values than CW. The relationship of viscoelastic properties with physical (acoustic velocity, basic density and longitudinal shrinkage) and chemical wood properties was explored. There was a strong correlation (R=0.76) between storage modulus and dynamic MOE (measured by acoustics). In addition, tan was positively correlated with longitudinal shrinkage. Monosaccharide compositions of the cell-wall polysaccharides and lignin contents were determined and showed significant differences in the relative proportion of major cell-wall components in OW and CW. Correlations between tan and xylose, originating from heteroxylans, and lignin content were found for CW, suggesting that the damping behaviour of cell-walls is controlled by the matrix between cellulose fibril aggregates.
Original languageEnglish
Pages (from-to)1239 - 1250
Number of pages12
JournalWood Science and Technology
Volume49
Issue number6
DOIs
Publication statusPrint publication - 2015

Fingerprint

compression wood
wood quality
storage modulus
Pinus radiata
saplings
cell wall components
shrinkage
acoustics
grain and figure
monosaccharides
xylose
lignin
humidity
temperature
cellulose
polysaccharides
cell walls
screening
water content
breeding

Keywords

  • Cell-wall composition
  • Compression wood
  • Dynamic mechanical analysis (DMA)
  • Pinus radiata
  • Wood quality

Cite this

Sharma, M., Brennan, M., Chauhan, SS., Entwistle, KM., Altaner, CM., & Harris, PJH. (2015). Wood quality assessment of Pinus radiata (radiata pine) saplings by dynamic mechanical analysis. Wood Science and Technology, 49(6), 1239 - 1250. https://doi.org/10.1007/s00226-015-0769-x
Sharma, M ; Brennan, M ; Chauhan, SS ; Entwistle, KM ; Altaner, CM ; Harris, PJH. / Wood quality assessment of Pinus radiata (radiata pine) saplings by dynamic mechanical analysis. In: Wood Science and Technology. 2015 ; Vol. 49, No. 6. pp. 1239 - 1250.
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abstract = "The use of dynamic mechanical analysis was explored as a possible method of screening for wood quality in breeding programmes. Viscoelastic properties along the grain of wood from 18-month-old Pinus radiata saplings were measured using a humidity-controlled dynamic mechanical analyser. Storage modulus and tan were determined independently for opposite wood (OW) and compression wood (CW) in 25 trees in the temperature range from 10 to 45°C at 5°C intervals at three frequencies (0.1, 1 and 10 Hz) at constant moisture content of 9{\%}. Storage modulus and tan were frequency and temperature dependent. The two wood types did not differ significantly in their storage modulus. But OW exhibited significantly higher tan values than CW. The relationship of viscoelastic properties with physical (acoustic velocity, basic density and longitudinal shrinkage) and chemical wood properties was explored. There was a strong correlation (R=0.76) between storage modulus and dynamic MOE (measured by acoustics). In addition, tan was positively correlated with longitudinal shrinkage. Monosaccharide compositions of the cell-wall polysaccharides and lignin contents were determined and showed significant differences in the relative proportion of major cell-wall components in OW and CW. Correlations between tan and xylose, originating from heteroxylans, and lignin content were found for CW, suggesting that the damping behaviour of cell-walls is controlled by the matrix between cellulose fibril aggregates.",
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Sharma, M, Brennan, M, Chauhan, SS, Entwistle, KM, Altaner, CM & Harris, PJH 2015, 'Wood quality assessment of Pinus radiata (radiata pine) saplings by dynamic mechanical analysis', Wood Science and Technology, vol. 49, no. 6, pp. 1239 - 1250. https://doi.org/10.1007/s00226-015-0769-x

Wood quality assessment of Pinus radiata (radiata pine) saplings by dynamic mechanical analysis. / Sharma, M; Brennan, M; Chauhan, SS; Entwistle, KM; Altaner, CM; Harris, PJH.

In: Wood Science and Technology, Vol. 49, No. 6, 2015, p. 1239 - 1250.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Sharma, M

AU - Brennan, M

AU - Chauhan, SS

AU - Entwistle, KM

AU - Altaner, CM

AU - Harris, PJH

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AB - The use of dynamic mechanical analysis was explored as a possible method of screening for wood quality in breeding programmes. Viscoelastic properties along the grain of wood from 18-month-old Pinus radiata saplings were measured using a humidity-controlled dynamic mechanical analyser. Storage modulus and tan were determined independently for opposite wood (OW) and compression wood (CW) in 25 trees in the temperature range from 10 to 45°C at 5°C intervals at three frequencies (0.1, 1 and 10 Hz) at constant moisture content of 9%. Storage modulus and tan were frequency and temperature dependent. The two wood types did not differ significantly in their storage modulus. But OW exhibited significantly higher tan values than CW. The relationship of viscoelastic properties with physical (acoustic velocity, basic density and longitudinal shrinkage) and chemical wood properties was explored. There was a strong correlation (R=0.76) between storage modulus and dynamic MOE (measured by acoustics). In addition, tan was positively correlated with longitudinal shrinkage. Monosaccharide compositions of the cell-wall polysaccharides and lignin contents were determined and showed significant differences in the relative proportion of major cell-wall components in OW and CW. Correlations between tan and xylose, originating from heteroxylans, and lignin content were found for CW, suggesting that the damping behaviour of cell-walls is controlled by the matrix between cellulose fibril aggregates.

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JO - Wood Science and Technology

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