Synthesis and characterization of NaA zeolite particle as intumescent flame retardant in chloroprene rubber system--颗粒学报PARTICUOLOGY

Yuan, W., Chen, H., Chang, R., & Li, L. (2011). Synthesis and characterization of NaA zeolite particle as intumescent flame retardant in chloroprene rubber system. Particuology, 9(3), 248–252. https://doi.org/10.1016/j.partic.2010.05.016

Synthesis and characterization of NaA zeolite particle as intumescent flame retardant in chloroprene rubber system

Wenhui Yuan ^a *, Huarong Chen ^a, Ranran Chang ^a, Li Li ^b

a School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
b College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China

10.1016/j.partic.2010.05.016

Volume 9, Issue 3, June 2011, Pages 248-252

Received 12 March 2010, Revised 8 May 2010, Accepted 21 May 2010, Available online 29 March 2011.

E-mail: cewhyuan@scut.edu.cn

Highlights

Abstract

NaA zeolite with average particle size of 1 μm was successfully synthesized by microwave heating. Influences of pre-crystallization time, microwave power and microwave heating time on the synthesis of NaA zeolite were investigated. The as-synthesized sample was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and particle size distribution (PSD). Thermal and flame retardant properties as intumescent flame retardant (IFR) in chloroprene rubber (CR) system, such as thermogravimetry (TG), limiting oxygen index (LOI), burning rate (BR) and specific extinction area (SEA) were further investigated by adding NaA zeolite particles to CR. Experimental results show that the thermal stability and LOI value increased while BR and SEA decreased by adding 5 phr NaA zeolite into the 40 phr IFR filled CR system.

Graphical abstract

Keywords

NaA zeolite; Microwave heating; Microwave chemistry; Intumescent flame retardant; Chloroprene rubber; Flame retardant property

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