Please use this identifier to cite or link to this item:
https://doi.org/10.1002/app.1991.070431106
DC Field | Value | |
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dc.title | Dynamic mechanical analysis of tropical wood-polymer composites | |
dc.contributor.author | Yap, M.G.S. | |
dc.contributor.author | Que, Y.T. | |
dc.contributor.author | Chia, L.H.L. | |
dc.date.accessioned | 2014-05-16T07:36:41Z | |
dc.date.available | 2014-05-16T07:36:41Z | |
dc.date.issued | 1991-12-05 | |
dc.identifier.citation | Yap, M.G.S., Que, Y.T., Chia, L.H.L. (1991-12-05). Dynamic mechanical analysis of tropical wood-polymer composites. Journal of Applied Polymer Science 43 (11) : 1999-2004. ScholarBank@NUS Repository. https://doi.org/10.1002/app.1991.070431106 | |
dc.identifier.issn | 00218995 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/52693 | |
dc.description.abstract | Wood-polymer composites (WPC) of Geronggang (GE; Cratoxylon arborescens), a light tropical hardwood, impregnated with methyl methacrylate (MMA) and styrene-co-acrylonitrile (3:2; STAN), were prepared by in situ polymerization using γ radiation or catalyst-heat treatment. The dynamic flexural storage modulus, E′, for oven-dried GE, moist GE, and GE-MMA and GE-STAN composites decreased with increasing temperature. The percentage decreases for GE with 10 and 16.5% moisture contents were 74.5 and 98.2%, respectively, which were higher than those for GE and GE composites, which ranged between 40 and 50%. The impregnated polymers were not as effective as water in acting as plasticizers, due to their nonpolar nature and much higher molecular weights. The α-transition peaks for moist GE and GE composites were more distinct and were shifted to lower temperatures than those for oven-dried GE. The values ranged between 75 and 150°C for moist GE and between 102 and 170°C for the GE composites. The α-transitions of the catalyst-heat-treated GE composites were lower than that of the radiation-induced counterparts. GE-STAN composites were also observed to have lower α-transition temperatures than those for GE-MMA for the respective treatment process, which seems to suggest that STAN interacted to a greater extent with cell wall components than did MMA. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1002/app.1991.070431106 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.contributor.department | CHEMICAL ENGINEERING | |
dc.description.doi | 10.1002/app.1991.070431106 | |
dc.description.sourcetitle | Journal of Applied Polymer Science | |
dc.description.volume | 43 | |
dc.description.issue | 11 | |
dc.description.page | 1999-2004 | |
dc.description.coden | JAPNA | |
dc.identifier.isiut | A1991GQ23600006 | |
Appears in Collections: | Staff Publications |
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