Efficacy of Pyrethroid and Boron Preservatives in Protecting Particleboards against Fungus and Termite

Ashaari, Zaidon and Awang Malek, Norhairul Nizam and Abood Haris, Faizah and Md. Tahir, Paridah and Harun, Jalaluddin and Mohd Yusoff, Mohd Nor and Mohd Yunus, Nor Yuziah (2008) Efficacy of Pyrethroid and Boron Preservatives in Protecting Particleboards against Fungus and Termite. Journal of Tropical Forest Science, 20 (1). pp. 57-65. ISSN 0128-1283

Full text not available from this repository.

Official URL: http://info.frim.gov.my/cfdocs/infocenter/jtfsonline/jtfs/v20n1/57-65.pdf


Pyrethroid-formulated preservatives were investigated for their efficacy in protecting rubberwood and empty fruit bunches (EFB) particleboards against fungi and termites. Timberlife®, Stoprot® and Cislin® solutions (5% w/w of particles) were incorporated in rubberwood (clone RRIM 2002), EFB and rubberwood–EFB blend (70:30) particleboards by spraying the solutions separately into the furnish during blending. Boric acid (0.5% w/w) was used for comparison. A low formaldehyde emission melamine urea formaldehyde (MUF) resin (E1 grade) was used as binder. The pressing time of each type of board was determined by studying the gelation time of the adhesive mixture with added preser vatives. With the exception of Timberlife®, all preser vatives markedly increased the gelation time of the resulting adhesive mixture. The gel time for control mixture (without preservative) was 360 s. The resistance of treated particleboards against biodeterioration agents was evaluated based on weight loss of testing blocks after exposure to white rot fungus (Pycnoporus sanguineus) and subterranean termite (Coptotermes curvignathus). The resistance of particleboards either against white rot fungus or termite can be enhanced through incorporation of small amount of pyrethroid formulated preservatives through spraying during blending of furnish. Timberlife® provided the best protection of these particleboards against P. sanguineus. Cislin® offered the best protection for EFB particleboard against termite. Stoprot® gave fair protection to all particleboards against white rot fungus and termite, while boric acid still gave the best protection to rubberwood particleboard against termite.

Item Type:Article
Keyword:Panel, preservatives, boric acid, Pycnoporous sanguineus, Coptotermes curvignathus
Faculty or Institute:Faculty of Forestry
ID Code:7411
Deposited By: Norhazura Hamzah
Deposited On:23 Jun 2010 02:51
Last Modified:29 Jul 2010 03:24

Repository Staff Only: Edit item detail

Document Download Statistics

This item has been downloaded for since 23 Jun 2010 02:51.

View statistics for "Efficacy of Pyrethroid and Boron Preservatives in Protecting Particleboards against Fungus and Termite"

Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.