Materials Reports  2021, Vol. 35 Issue (z2): 529-534 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Effect of Sb2O3/ZHS on Flame Retardancy Properties in PVC Composite |
| MA Li1, SHI Tong1, LEI Yanfei2, LIU Xixi1, WANG Xin1, YU Wencong1, HE Chengmao1
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1 College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
2 Shantou Chaoyang District Emergency Management Bureau, Shantou 515000, China |
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Abstract Plasticizers and stabilizers in Polyvinyl chloride (PVC) tend to reduce the flame retardancy of the material. In this paper, the flame retardant antimony trioxide (Sb2O3) and zinc hydroxystannate (ZHS) are added to PVC composite to study their flame retardant and smoke suppression properties. The mechanical properties, flame retardant and smoke inhibition properties, thermal stability of PVC composite were investigated by electronic universal testing machine, limiting oxygen index (LOI), cone calorimeter and TG, respectively. The results revealed that the tensile strength and elongation at break of PVC composite with Sb2O3/ZHS total addition of 6wt% and mass ratio of 1,2 increased by 13.01% and 10.90% compared with the original sample. And the flame retardant and smoke inhibition properties of PVC composite with Sb2O3/ZHS has been improved. When the Sb2O3/ZHS addition amount was 12wt% and the mass ratio of Sb2O3 to ZHS was 1,2, the LOI value of PVC composite can reach 30.8%; Its peak heat release rate (PHRR) and total heat release (THR) decreased by 77.1% and 61.7% compared with the original sample, peak smoke release rate (PSPR) and total smoke release (TSP) dropped by 46.7% and 10.4%. Sb2O3/ZHS can improve the thermal stability of PVC composites. The carbon residue rate of PVC composite with Sb2O3/ZHS total addition of 12wt% and mass ratio of 1,2 increased by 139.7% compared with original sample.
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Published: 09 December 2021
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| Fund:This work was financially supported by the National Key R & D Program of China (2018YFC0808104). |
About author:: Li Ma is a professor at Xi'an University of Science and Technology, a supervisor of doctoral and master students, and a senior visiting scholar at Worcester Polytechnic Institute. China Association for Science and Technology Seeking Truth Outstanding Youth Achievement Transformation Award, Sun Yueqi Youth Science and Technology Award, Shaanxi Youth Science and Technology Award, National Coal “May 4th” Youth Medal and other honors. The main research direction is fire prevention and fire rescue, leading the team to carry out fire science basics, fire perception and smart fire protection, new fire prevention techno-logy and fire rescue research. Presided over more than 10 national key R&D projects, National Natural Science Foundation of China and other national projects, won 1 second prize of National Science and Technology Progress Award, more than 30 provincial and ministerial science and technology progress awards, more than 30 invention patents, and published 5 books, Published more than 100 academic papers, of which more than 20 were collected by SCI and EI.
Tong Shi, master student of Xi 'an University of Science and Technology, Mainly engaged in research on fire safety prevention and control technology. |
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