期刊
JOURNAL OF THE INDIAN ACADEMY OF WOOD SCIENCE
卷 19, 期 1, 页码 30-39出版社
SPRINGER INDIA
DOI: 10.1007/s13196-022-00289-5
关键词
Wood; Flame retardant; Thermal; Kinetics; SEM
类别
资金
- Council of Scientific and Industrial Research, New Delhi, India [09/105(0181)/2009-EMR-I]
This study investigates the impregnation of CTMAB and ADHOP in wood and evaluates the thermal behavior and flame retardant properties of the modified wood samples. The results demonstrate the synergetic effect of ADHOP on the flame retardant properties imparted by CTMAB on the wood samples.
Wood, one of the flammable materials, has been impregnated with varying concentrations of Cetyltrimethylammonium bromide (CTMAB) and Ammonium dihydrogen orthophosphate (ADHOP) via soaking method. The impregnation of chemicals in poplar wood veneers has been confirmed by weight gain percentage (WGP) and scanning electron microscopy (SEM) studies. The thermal behavior of samples has been studied by dynamic thermogravimetry (TG) analysis under nitrogen atmosphere. Non-isothermal, model free iso-conversional multiple heating rate methods viz. Ozawa-Flynn-Wall (O-F-W) and modified Coats-Redfern have been used to evaluate activation energy of selected samples. Thermal parameters like onset temperature, maximum mass loss rate (MMLR) and percentage char yield at 650 degrees C temperature have been used to appraise the flammability of wood and modified wood samples. The flammability of samples has also been determined by limiting oxygen index (LOI) and standards of Underwriters Laboratories (UL 94). The study depicts the synergetic effect of ADHOP on the flame retardant properties imparted by CTMAB on poplar wood samples.
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