含Sb2O3/ZHS的PVC复合材料阻燃抑烟性能研究

材料导报

2021, Vol. 35

Issue (z2): 529-534

高分子与聚合物基复合材料

含Sb₂O₃/ZHS的PVC复合材料阻燃抑烟性能研究

马砺¹, 师童¹, 雷燕飞², 刘西西¹, 王昕¹, 于文聪¹, 何铖茂¹

1 西安科技大学安全科学与工程学院,西安 710054
2 汕头市潮阳区应急管理局,汕头 515000

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

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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摘要聚氯乙烯(PVC)中添加增塑剂和稳定剂易致材料阻燃性能下降。本文将阻燃剂三氧化二锑(Sb₂O₃)及羟基锡酸锌(ZHS)添加至PVC复合材料中,研究其阻燃抑烟性能。利用电子万能试验机、极限氧指数仪(LOI)、锥形量热仪及热重分析仪(TG)研究PVC复合材料力学性能、阻燃抑烟性能及热稳定性。结果表明:Sb₂O₃/ZHS总添加量为6wt%且质量比为1∶2的PVC复合材料拉伸强度与断裂伸长率与原样相比分别提升了13.01%、10.90%。含Sb₂O₃/ZHS的PVC复合材料阻燃抑烟性能得到提升;其中总添加量为12wt%且质量比为1∶2的PVC复合材料LOI值可达30.8%,与原样相比其热释放速率峰值(PHRR)与总热释放量(THR)下降了77.1%、61.7%,烟释放速率峰值(PSPR)与总烟释放量(TSP)下降了46.7%、10.4%。Sb₂O₃/ZHS提高了PVC复合材料的热稳定性,Sb₂O₃/ZHS总添加量为12wt%且质量比为1∶2的PVC复合材料残炭率与原样相比提升了139.7%。

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	于文聪
	何铖茂

关键词: PVC复合材料阻燃抑烟热稳定性

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.

Key words: polyvinyl chloride composite material flame retardant smoke inhibition thermal stability

发布日期: 2021-12-09

ZTFLH:

TQ323.3

基金资助: 国家重点研发项目(2018YFC0808104)

通讯作者: mal@xust.edu.cn

作者简介: 马砺,西安科技大学教授,博士研究生导师,美国伍斯特理工学院高级访问学者。中国科协求是杰出青年成果转化奖、孙越崎青年科技奖、陕西青年科技奖、全国煤炭“五四”青年奖章等荣誉。主要研究方向为火灾防治与消防救援,带领团队开展火灾科学基础、火灾感知与智慧消防、火灾防治新技术与消防救援研究。主持国家重点研发计划课题、国家自然科学基金等国家级项目 10 余项,获得国家科学技术进步二等奖 1 项 ,省部级科技进步奖 30 余项,发明专利 30 余项,出版著作 5 部,发表学术论文 100 余篇,其中 SCI、EI 等收录20 余篇。
师童,西安科技大学硕士研究生,主要从事火灾安全防治技术方面研究。

引用本文:

马砺, 师童, 雷燕飞, 刘西西, 王昕, 于文聪, 何铖茂. 含Sb₂O₃/ZHS的PVC复合材料阻燃抑烟性能研究[J]. 材料导报, 2021, 35(z2): 529-534.
MA Li, SHI Tong, LEI Yanfei, LIU Xixi, WANG Xin, YU Wencong, HE Chengmao. Effect of Sb₂O₃/ZHS on Flame Retardancy Properties in PVC Composite. Materials Reports, 2021, 35(z2): 529-534.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/Iz2/529

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