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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal management ability and flame retardancy of silicone rubber foam filled with flame retardant phase change capsules
Abstract A novel phase change capsule with layered double hydroxide (LDH) modified SiO2 shell (named M-EPCM) was designed and prepared, which was used to improve the thermal regulation performance and flame retardancy of silicone rubber foam (SRF). The SRF-3 composite containing 18 wt% M-EPCM presented greatly improved thermoregulation ability, and excellent thermal reliability even after 100 cycles. Besides, SRF-3 also exhibited excellent flame retardancy, with the limiting oxygen index exceeding 31.0%, reduced peak heat release rate (36.4%) and low total smoke yield (13.8 m2). The flame retardant mechanism analysis revealed that barrier effect, catalytic crosslinking and polyaromatic reaction provided by LDH played an important role. Moreover, SRF composites have outstanding mechanical properties, especially SRF-3 which showed a 150% and 85% increase in tensile strength and compression strength compared with pure SRF, respectively. This article provides a new idea for further application of LDH in the field of thermal management.
Graphical abstract Display Omitted
Highlights A novel nano phase change capsules (M-EPCM) with flame retardant performance was prepared by introducing LDH. The introduction of 18 wt% M-EPCM can significantly improve the thermal regulation capacity of silicone rubber foam (SRF). The M-EPCM endows SRF with enhanced flame retardant properties and favorable mechanical performance. The LDH layer of M-EPCM plays a key role in SRF composites both in condensed phase and gas phase fire retardant behavior.
Thermal management ability and flame retardancy of silicone rubber foam filled with flame retardant phase change capsules
Abstract A novel phase change capsule with layered double hydroxide (LDH) modified SiO2 shell (named M-EPCM) was designed and prepared, which was used to improve the thermal regulation performance and flame retardancy of silicone rubber foam (SRF). The SRF-3 composite containing 18 wt% M-EPCM presented greatly improved thermoregulation ability, and excellent thermal reliability even after 100 cycles. Besides, SRF-3 also exhibited excellent flame retardancy, with the limiting oxygen index exceeding 31.0%, reduced peak heat release rate (36.4%) and low total smoke yield (13.8 m2). The flame retardant mechanism analysis revealed that barrier effect, catalytic crosslinking and polyaromatic reaction provided by LDH played an important role. Moreover, SRF composites have outstanding mechanical properties, especially SRF-3 which showed a 150% and 85% increase in tensile strength and compression strength compared with pure SRF, respectively. This article provides a new idea for further application of LDH in the field of thermal management.
Graphical abstract Display Omitted
Highlights A novel nano phase change capsules (M-EPCM) with flame retardant performance was prepared by introducing LDH. The introduction of 18 wt% M-EPCM can significantly improve the thermal regulation capacity of silicone rubber foam (SRF). The M-EPCM endows SRF with enhanced flame retardant properties and favorable mechanical performance. The LDH layer of M-EPCM plays a key role in SRF composites both in condensed phase and gas phase fire retardant behavior.
Thermal management ability and flame retardancy of silicone rubber foam filled with flame retardant phase change capsules
Zhang, Zetian (Autor:in) / Du, Weining (Autor:in) / Liu, Yang (Autor:in) / Liang, Ze (Autor:in) / Li, Fufen (Autor:in) / Yong, Yong (Autor:in) / Li, Zhengjun (Autor:in)
Applied Clay Science ; 240
05.05.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Study on Preparation and Properties of APP Filled Flame Retardant Silicone Rubber Composites
| Trans Tech Publications | 2014