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Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib

Some tropicd hardwoods (acacia mangium, madhuca utilis-biris, dacrydium spp.-sempilor, dipterocarpus spp.keruing Mempelas, dyera costulata-jelutong, shorea spp.-meranti langgai bukit, shorea gibbosa-Iun gajah, shorea macrophylla-engkabang jantung, endospermum diadenum-terbulan, cratoxylum arborescen...

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Main Authors: Hamdan, S., Liew, Y.L., Talib, Z.A.
Format: Conference or Workshop Item
Language:English
Published: 2006
Subjects:
Wood products. Furniture
Online Access:https://ir.uitm.edu.my/id/eprint/81495/1/81495.PDF
https://ir.uitm.edu.my/id/eprint/81495/
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spelling my.uitm.ir.814952023-08-15T00:10:24Z https://ir.uitm.edu.my/id/eprint/81495/ Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib Hamdan, S. Liew, Y.L. Talib, Z.A. Wood products. Furniture Some tropicd hardwoods (acacia mangium, madhuca utilis-biris, dacrydium spp.-sempilor, dipterocarpus spp.keruing Mempelas, dyera costulata-jelutong, shorea spp.-meranti langgai bukit, shorea gibbosa-Iun gajah, shorea macrophylla-engkabang jantung, endospermum diadenum-terbulan, cratoxylum arborescens-geronggang) are selected and impregnated with methyl methaclylate (MMA) and polymerized "in-situ" by using catalyst-heat technique. Treatability of the wood as determined from the fractional volumetric retentions of monomer i.e. fraction of voids filled by the impregnant showed that the mean retention range from 15.03% (acacia) to 56.59% (geronggang). The penetration of monomer evaluated using ultrasonic wave showed that the treated wood had higher velocities which indicate significant increase in density. This paper deals with the viscoelastic relaxation of polymerized treated wood. The efficiency of monomer as a plasticizer is studied through the temperature dependence of the storage modulus (E') and loss tangent (tan □) of treated and untreated wood by dynamic mechanical thermal analysis (DMTA) over a temperature of-100 to 200°C. E' decrease with temperature, and as the maximum mechanical damping develop, the glass transition temperature (Tg) of plasticized wood decrease with the plasticized content. 2006 Conference or Workshop Item PeerReviewed text en https://ir.uitm.edu.my/id/eprint/81495/1/81495.PDF Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib. (2006) In: Volume No. 1: Science and Technology, 30 – 31 May 2006, Swiss Garden Resort & Spa Kuantan, Pahang.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Wood products. Furniture
spellingShingle Wood products. Furniture
Hamdan, S.
Liew, Y.L.
Talib, Z.A.
Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
description Some tropicd hardwoods (acacia mangium, madhuca utilis-biris, dacrydium spp.-sempilor, dipterocarpus spp.keruing Mempelas, dyera costulata-jelutong, shorea spp.-meranti langgai bukit, shorea gibbosa-Iun gajah, shorea macrophylla-engkabang jantung, endospermum diadenum-terbulan, cratoxylum arborescens-geronggang) are selected and impregnated with methyl methaclylate (MMA) and polymerized "in-situ" by using catalyst-heat technique. Treatability of the wood as determined from the fractional volumetric retentions of monomer i.e. fraction of voids filled by the impregnant showed that the mean retention range from 15.03% (acacia) to 56.59% (geronggang). The penetration of monomer evaluated using ultrasonic wave showed that the treated wood had higher velocities which indicate significant increase in density. This paper deals with the viscoelastic relaxation of polymerized treated wood. The efficiency of monomer as a plasticizer is studied through the temperature dependence of the storage modulus (E') and loss tangent (tan □) of treated and untreated wood by dynamic mechanical thermal analysis (DMTA) over a temperature of-100 to 200°C. E' decrease with temperature, and as the maximum mechanical damping develop, the glass transition temperature (Tg) of plasticized wood decrease with the plasticized content.
format Conference or Workshop Item
author Hamdan, S.
Liew, Y.L.
Talib, Z.A.
author_facet Hamdan, S.
Liew, Y.L.
Talib, Z.A.
author_sort Hamdan, S.
title Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
title_short Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
title_full Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
title_fullStr Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
title_full_unstemmed Studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (DMTA) / S. Hamdan, Y.L. Liew and Z.A. Talib
title_sort studies of monomer impregnation and polymerized "in-situ" in wood using dynamic mechanical thermal analyser (dmta) / s. hamdan, y.l. liew and z.a. talib
publishDate 2006
url https://ir.uitm.edu.my/id/eprint/81495/1/81495.PDF
https://ir.uitm.edu.my/id/eprint/81495/
_version_ 1775626414422228992
score 13.211869

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