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Materials (Basel). 2018 Mar 13;11(3). pii: E420. doi: 10.3390/ma11030420.

Thermal Properties of Zeolite-Containing Composites.

Author information

1
Department of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, Kagoshima 890-0065, Japan. shimonosono@cen.kagoshima-u.ac.jp.
2
Department of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, Kagoshima 890-0065, Japan. hirata@cen.kagoshima-u.ac.jp.
3
Department of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, Kagoshima 890-0065, Japan. k1599051@kadai.jp.
4
Department of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, Kagoshima 890-0065, Japan. samesima@cen.kagoshima-u.ac.jp.
5
Shirasu R&D Laboratory, Regional Resource Division, Kagoshima Prefectural Institute of Industrial Technology, Kagoshima 899-5105, Japan. sodeyama@kagoshima-it.go.jp.
6
Shirasu R&D Laboratory, Regional Resource Division, Kagoshima Prefectural Institute of Industrial Technology, Kagoshima 899-5105, Japan. masunaga@kagoshima-it.go.jp.
7
Shirasu R&D Laboratory, Regional Resource Division, Kagoshima Prefectural Institute of Industrial Technology, Kagoshima 899-5105, Japan. yosiyuki@kagoshima-it.go.jp.

Abstract

A zeolite (mordenite)-pore-phenol resin composite and a zeolite-pore-shirasu glass composite were fabricated by hot-pressing. Their thermal conductivities were measured by a laser flash method to determine the thermal conductivity of the monolithic zeolite with the proposed mixing rule. The analysis using composites is useful for a zeolite powder with no sinterability to clarify its thermal properties. At a low porosity <20%, the thermal conductivity of the composite was in excellent agreement with the calculated value for the structure with phenol resin or shirasu glass continuous phase. At a higher porosity above 40%, the measured value approached the calculated value for the structure with pore continuous phase. The thermal conductivity of the monolithic mordenite was evaluated to be 3.63 W/mK and 1.70-2.07 W/mK at room temperature for the zeolite-pore-phenol resin composite and the zeolite-pore-shirasu glass composite, respectively. The analyzed thermal conductivities of monolithic mordenite showed a minimum value of 1.23 W/mK at 400 °C and increased to 2.51 W/mK at 800 °C.

KEYWORDS:

composite; phenol resin; shirasu glass; thermal conductivity; zeolite

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