Behavior of bromine on the thermal decomposition of paper-based phenolic laminate wastes |
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Authors: | Tetsuro Shimamura Kazuo Kitagawa |
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Institution: | (1) Kyoto Municipal Institute for Industrial Research, 17 Chudoji Minami-machi, Shimogyo-ku, Kyoto 600-8813, Japan Tel. +81-75-315-8408; Fax +81-75-311-8845 e-mail: shimax@city.kyoto.jp, JP |
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Abstract: | We investigated the thermal properties and behavior of bromine on the thermal decomposition of paper-based phenolic laminate
wastes containing polybrominated flame retardants. The thermal properties of the phenolic laminate wastes were measured with
a thermogravimeter and a conduction-type scanning calorimeter (TG-CSC). The weight loss of the wastes on thermal decomposition
was mainly in three phases between 40°C and 600°C. The enthalpy (ΔH) of the thermal decomposition was 104 cal/g. The material balance of the decomposition components was measured with batch-type
thermal decomposition equipment. The ratios of carbon residue, liquid, and gas on decomposition at 800°C in a vacuum were
37 wt. %, 48 wt. %, and 15 wt. %, respectively. The bromine contents in the carbon residue and liquid were less than 0.02 wt.
% and 10 wt. %, respectively. These results are useful both in the carbonization process of these wastes and in the application
of carbon residue as carbon materials.
Received: August 11, 2000 / Accepted: March 7, 2001 |
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Keywords: | Phenolic material Waste polymer Flame retardant Bromine Thermal decomposition |
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