Optimizing the treatment system of kenaf core particles with fire retardants

Izran K. Forest Research Institute of Malaysia, . and Abdul Rashid A. M., . and Mohammad Khairun Anwar U., . and Mohammad Jani S., . and Hashim W.S., . and Zaidon A. Putra Malaysia Univ., . and Faizah A. H., . (2009) Optimizing the treatment system of kenaf core particles with fire retardants. [Proceedings Paper]

The impregnation time and the buffering capacity of kenaf core particles treated with three different commercial fire retardants were studied using two concentrations of fire retardant 8 and 10. The impregnation time was determined using hot and cold baths. The buffering capacity test was done to evaluate the effect of the fire retardants on the buffering capacity and pH of kenaf core. The study showed that kenaf core particles achieved the standard chemical retention 7.19 within an hour of cold soaking which is faster than wood which needs four to five hours of cold soaking. Kenaf core particles were also found to absorb faster the 10 than the 8 concentration of fire retardant during the hot bath. The normal hot and cold bath procedure used in wood preservation was found not suitable for treating kenaf core particles as the particles became too soft and broke into pieces. The tea-bag method was implemented to prevent particle loss during the treatments. The kenaf core particles treated with DAP MAP and BP had higher buffering capacity towards alkali compared with acid. The buffering capacity towards alkali also was found to increase as the concentration of fire retardants increased except for the DAP treatment. The buffering capacity towards alkali of DAP-treated kenaf core particles was found to decrease as the concentration of fire retardants increased. This is because of the alkalinity of DAP which influenced the pH and made the buffering capacity of DAP-treated kenaf core particles less resistant towards alkali.

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Abstract

The impregnation time and the buffering capacity of kenaf core particles treated with three different commercial fire retardants were studied using two concentrations of fire retardant 8 and 10. The impregnation time was determined using hot and cold baths. The buffering capacity test was done to evaluate the effect of the fire retardants on the buffering capacity and pH of kenaf core. The study showed that kenaf core particles achieved the standard chemical retention 7.19 within an hour of cold soaking which is faster than wood which needs four to five hours of cold soaking. Kenaf core particles were also found to absorb faster the 10 than the 8 concentration of fire retardant during the hot bath. The normal hot and cold bath procedure used in wood preservation was found not suitable for treating kenaf core particles as the particles became too soft and broke into pieces. The tea-bag method was implemented to prevent particle loss during the treatments. The kenaf core particles treated with DAP MAP and BP had higher buffering capacity towards alkali compared with acid. The buffering capacity towards alkali also was found to increase as the concentration of fire retardants increased except for the DAP treatment. The buffering capacity towards alkali of DAP-treated kenaf core particles was found to decrease as the concentration of fire retardants increased. This is because of the alkalinity of DAP which influenced the pH and made the buffering capacity of DAP-treated kenaf core particles less resistant towards alkali.

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Item Type:	Proceedings Paper
Additional Information:	4 tables
AGROVOC Term:	Kenaf
AGROVOC Term:	Heat treatment
AGROVOC Term:	Alkali treatment
AGROVOC Term:	Buffering capacity
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11470

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