Treatment of Fast-Growing poplar with monomers using in situ polymerization. Part II: Static and dynamic mechanical properties; Thermal stability

Wen He, Tetsuya Nakao, Masahiro Yoshinobu, Qisheng Zhang

Research output: Contribution to journalReview article

1 Citation (Scopus)

Abstract

Part I of this article described the treatment of specimens of fast-growing poplar (Populus Xeurarnericana NL.-95) with styrenc (ST) and glycidyl methacrylate (GMA) monomers. It detailed the results of tests for water absorption, dimensional stability, and termite and fungus resistance. This part continues the previous work. it examines the static and dynamic mechanical properties, as well as the thermal stability, of polymer-infused wood (P1W). Static mechanical properties of P1Ws were assessed in terms of bending strength, compressive strength, and Brinell hardness. Our results showed that, as a result of the treatment, these properties were significantly increased. Moreover, the P1W treated with GMA-ST showed greater mechanical strength than P1W treated with ST alone. We believe that this is due to the formation of cross-linked bonds between the GMA-ST and the hydroxyl groups of the wood's ccli walls. Dynamic mechanical analysis (DMA) demonstrated that, at normal temperatures, storage modulus E′ and molecular structure stability of wood were significantly enhanced by the treatment. llowever the loss factor (tanδ) of P1Ws was sharply elevated at a higher temperature range. Finally, thermogravimetric analysis (TGA) indicated that the thermal stability of wood was greatly improved by the treatment; the wood treated with GMA-ST showed slightly higher thermal stability than the wood treated with ST alone.

Original languageEnglish
Pages (from-to)121-129
Number of pages9
JournalForest Products Journal
Volume61
Issue number2
DOIs
Publication statusPublished - Jan 1 2011
Externally publishedYes

Fingerprint

thermal stability
polymerization
mechanical properties
mechanical property
Wood
Thermodynamic stability
Monomers
Polymerization
Mechanical properties
strength (mechanics)
Fungus resistance
Termite resistance
thermogravimetry
dimensional stability
bending strength
storage modulus
Dimensional stability
termite
Populus
Water absorption

All Science Journal Classification (ASJC) codes

  • Forestry
  • Materials Science(all)
  • Plant Science

Cite this

Treatment of Fast-Growing poplar with monomers using in situ polymerization. Part II : Static and dynamic mechanical properties; Thermal stability. / He, Wen; Nakao, Tetsuya; Yoshinobu, Masahiro; Zhang, Qisheng.

In: Forest Products Journal, Vol. 61, No. 2, 01.01.2011, p. 121-129.

Research output: Contribution to journalReview article

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