Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique

Lesser known wood species (LKS) have the potentials to become alternative sources of timber supply for wood based industries if their properties can be improved. In this study, Mahang wood (Macaranga sp.) was impregnated 15% (w/v) low molecular weight phenol formaldehyde (LMWPF) followed by compress...

Full description

Bibliographic Details
Main Authors:	A.F., Ang, Zaidon, A., Bakar, E.S., Mohd Hamami, S., Anwar, U.M.K., Jawaid, M.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/6850/ http://journalarticle.ukm.my/6850/ http://journalarticle.ukm.my/6850/1/08_A.F._Ang.pdf

id	ukm-6850
recordtype	eprints
spelling	ukm-68502016-12-14T06:42:22Z http://journalarticle.ukm.my/6850/ Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique A.F., Ang Zaidon, A. Bakar, E.S. Mohd Hamami, S. Anwar, U.M.K. Jawaid, M. Lesser known wood species (LKS) have the potentials to become alternative sources of timber supply for wood based industries if their properties can be improved. In this study, Mahang wood (Macaranga sp.) was impregnated 15% (w/v) low molecular weight phenol formaldehyde (LMWPF) followed by compressing in a hot press at 70, 60 and 50% compression ratios (CR). The treated wood was partially dried in an oven at 65°C until 10% moisture content and subsequently followed by curing at 150°C for 30 min in a hot press. The results showed that the phenolic compreg technique had successfully increased the dimensional stability and mechanical properties of the wood. The polymer retention calculated based on weight gain regardless of compression ratio was approximately 30%. The majority of the properties were improved by the degree of compression in a hot press. Nevertheless, thickness swelling and swelling coefficient increased which were due to spring back effect. As regards to specific strength (strength to density ratio), the compreg wood displayed lower strength and stiffness in lateral direction compared with untreated solid wood. However, the specific compressive strength perpendicular to grain and hardness of the compreg wood were superior than untreated solid wood. The treatment had also changed the wood into highly resistant to fungal decay. Universiti Kebangsaan Malaysia 2014-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6850/1/08_A.F._Ang.pdf A.F., Ang and Zaidon, A. and Bakar, E.S. and Mohd Hamami, S. and Anwar, U.M.K. and Jawaid, M. (2014) Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique. Sains Malaysiana, 43 (2). pp. 219-225. ISSN 0126-6039 http://www.ukm.my/jsm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Lesser known wood species (LKS) have the potentials to become alternative sources of timber supply for wood based industries if their properties can be improved. In this study, Mahang wood (Macaranga sp.) was impregnated 15% (w/v) low molecular weight phenol formaldehyde (LMWPF) followed by compressing in a hot press at 70, 60 and 50% compression ratios (CR). The treated wood was partially dried in an oven at 65°C until 10% moisture content and subsequently followed by curing at 150°C for 30 min in a hot press. The results showed that the phenolic compreg technique had successfully increased the dimensional stability and mechanical properties of the wood. The polymer retention calculated based on weight gain regardless of compression ratio was approximately 30%. The majority of the properties were improved by the degree of compression in a hot press. Nevertheless, thickness swelling and swelling coefficient increased which were due to spring back effect. As regards to specific strength (strength to density ratio), the compreg wood displayed lower strength and stiffness in lateral direction compared with untreated solid wood. However, the specific compressive strength perpendicular to grain and hardness of the compreg wood were superior than untreated solid wood. The treatment had also changed the wood into highly resistant to fungal decay.
format	Article
author	A.F., Ang Zaidon, A. Bakar, E.S. Mohd Hamami, S. Anwar, U.M.K. Jawaid, M.
spellingShingle	A.F., Ang Zaidon, A. Bakar, E.S. Mohd Hamami, S. Anwar, U.M.K. Jawaid, M. Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
author_facet	A.F., Ang Zaidon, A. Bakar, E.S. Mohd Hamami, S. Anwar, U.M.K. Jawaid, M.
author_sort	A.F., Ang
title	Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
title_short	Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
title_full	Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
title_fullStr	Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
title_full_unstemmed	Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique
title_sort	possibility of improving the properties of mahang wood (macaranga sp.)through phenolic compreg technique
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/6850/ http://journalarticle.ukm.my/6850/ http://journalarticle.ukm.my/6850/1/08_A.F._Ang.pdf
first_indexed	2023-09-18T19:48:02Z
last_indexed	2023-09-18T19:48:02Z
_version_	1777406032211869696

Possibility of improving the properties of Mahang Wood (Macaranga sp.)through phenolic compreg technique

Similar Items