Flame Retardancy and Thermal Behavior of an Unsaturated Polyester Modified with Kaolinite–Urea Intercalation Complexes

Lina Yue; Junfei Li; Xuan Zhou; Yingjuan Sun; Ming Gao; Taohua Zhu; Xiaoqian Zhang; Teng Feng; Zhanhong Shi; Yongchun Liu

doi:10.3390/molecules25204731

Molecules (Oct 2020)

Flame Retardancy and Thermal Behavior of an Unsaturated Polyester Modified with Kaolinite–Urea Intercalation Complexes

Lina Yue,
Junfei Li,
Xuan Zhou,
Yingjuan Sun,
Ming Gao,
Taohua Zhu,
Xiaoqian Zhang,
Teng Feng,
Zhanhong Shi,
Yongchun Liu

Affiliations

Lina Yue: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Junfei Li: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
Xuan Zhou: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Yingjuan Sun: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Ming Gao: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Taohua Zhu: School of Electronic Science and Control Engineering, Institute of Disaster Prevention, Yanjiao, Beijing 101601, China
Xiaoqian Zhang: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Teng Feng: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Zhanhong Shi: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China
Yongchun Liu: Heibei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Yanjiao, Beijing 101601, China

DOI: https://doi.org/10.3390/molecules25204731
Journal volume & issue: Vol. 25, no. 20
p. 4731

Abstract

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Organic modified kaolinite-urea intercalation complex (KUIC) was prepared using dimethyl sulfoxide (DMSO) as the precursor of kaolinite intercalation. Its structure was characterized by Fourier transform infrared (FTIR) and X-ray diffraction (XRD). Subsequently, as a synergistic agent, KUIC was combined with flame retardant ammonium polyphosphate (APP) to improve the flame retardant and smoke suppression performance of unsaturated polyester (UP) resin. A cone calorimeter (CONE) was used to study its flame retardancy and smoke suppression, and a scanning electron microscope (SEM) and thermogravimetry (TG) were used to study the micro morphology of the char and flame retardant mechanism. The results show that 12 phr of APP and 3 phr of KUIC were doped into UP to obtain a 28.0% limiting oxygen index (LOI) value. Compared with UP, the heat release rate and smoke production of UP/APP/KUIC composites were greatly decreased. Meanwhile, KUIC indeed enhanced the mechanical properties of UP.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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