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|Creep-characteristics of a tropical wood-polymer composite
|Chia, L.H.L.,Teoh, S.H.,Boey, F.Y.C. (1987). Creep-characteristics of a tropical wood-polymer composite. Radiation Physics and Chemistry 29 (1) : 25-30. ScholarBank@NUS Repository.
|Wood polymer composite (WPC) specimens were produced by impregnating a tropical wood with methyl methacrylate and subsequently polymerized by gamma -irradiation. Beam specimens of varying weight percentages of polymer were then subjected to a three point bend creep test under a constant load condition, for 250, 300 and 350 N. A Norton-Bailey (power law) mathematical model was used to describe the creep behavior, with the creep components determined by a nonlinear regression analysis. Significant creep improvements were obtained from the composite specimens as compared to the untreated wood specimens. Results indicated that maximum creep resistance is obtained when the amount of polymer loading exceeded 30%. An interfacial interaction between the polymer and the wood cell wall was used to account for the behavior of the increase in the creep resistance.
|MECHANICAL & PRODUCTION ENGINEERING
|Radiation Physics and Chemistry
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