Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y2Sn2O7

Bi-Bo Wang; Xiao-Li Yu; Fu-Hao Yu; Zhi-Min Song; Hong-Zhang Cao; De-Quan Han; Lei Song; Yuan Hu

doi:10.1007/s10118-025-3449-9

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Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y₂Sn₂O₇

RESEARCH ARTICLE | Updated：2025-12-03

- Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y₂Sn₂O₇
- Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y₂Sn₂O₇
- Chinese Journal of Polymer Science 2025年43卷第12期页码：2241-2251
- Affiliations：
  
  a.State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
  b.State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou 014030, China
- Author bio：
  
  wbibo@ustc.edu.cn (B.B.W.)
  leisong@ustc.edu.cn (L.S.)
- Funds：
  
  This work was financially supported by the Science and Technology Breakthrough Project of Inner Mongolia (Nos. 2024KJTW0006 and 2023B2551), Central Guiding Science and Technology Development Fund of Inner Mongolia (No. 2022ZY0100), Natural Science Foundation of Anhui Province (No. 2408085ME140), National Key Laboratory of Baiyunobo Rare Earth Resource Research and Comprehensive Utilization, Experimental Center of Engineering and Material Science from the University of Science and Technology of China, and Instruments Center for Physical Science, University of Science and Technology of China. The authors extend their gratitude to Ms. Shi Lanlan from Scientific Compass (www.shiyanjia.com) for providing invaluable assistance with XPS analysis.;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3449-9.
- DOI：10.1007/s10118-025-3449-9
  中图分类号：
- 收稿：2025-07-31，
  
  录用：2025-09-05，
  
  网络首发：2025-11-19，
  
  纸质出版：2025-12-15
- Accepted：
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Wang, B. B.; Yu, X. L.; Yu, F. H.; Song, Z. M.; Cao, H. Z.; Han, D. Q.; Song, L.; Hu, Y. Improved smoke suppression and toxicity reduction of Poly(vinyl chloride) materials enabled by rare earth-based Y₂Sn₂O₇. Chinese J. Polym. Sci. 2025, 43, 2241–2251 DOI: 10.1007/s10118-025-3449-9.

Bi-Bo Wang, Xiao-Li Yu, Fu-Hao Yu, et al. Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y₂Sn₂O₇[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2241-2251. DOI: 10.1007/s10118-025-3449-9.
Wang, B. B.; Yu, X. L.; Yu, F. H.; Song, Z. M.; Cao, H. Z.; Han, D. Q.; Song, L.; Hu, Y. Improved smoke suppression and toxicity reduction of Poly(vinyl chloride) materials enabled by rare earth-based Y₂Sn₂O₇. Chinese J. Polym. Sci. 2025, 43, 2241–2251 DOI: 10.1007/s10118-025-3449-9. DOI：

Bi-Bo Wang, Xiao-Li Yu, Fu-Hao Yu, et al. Improved Smoke Suppression and Toxicity Reduction of Poly(vinyl chloride) Materials Enabled by Rare Earth-based Y₂Sn₂O₇[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2241-2251. DOI: 10.1007/s10118-025-3449-9. DOI：

摘要

In this work

a novel rare-earth Y

was successfully prepared

which is superior to traditional flame retardants. Y

with catalysis and adsorption effect can significantly reduce the thermal and nonthermal hazards of PVC composites. In addition

can enhance the comprehensive performance of PVC materials

resulting in the revolutionization of PVC composites.

Abstract

Poly(vinyl chloride) (PVC) materials are produced with high smoke and toxic gases during combustion

when commercial flame-retardant additives are incorporated. Here

rare-earth yttrium stannate (Y

)

which is superior to commercial flame retardants

was designed to enhance the smoke suppression and toxicity reduction performance of PVC materials without damaging their mechanical properties. After the addition of 15 wt% Y

(PVC/Y

)

the PVC composites achieved a V-0 rating

whereas the pure PVC material achieved a V-2 rating. The peak heat release rate of PVC/Y

composite was reduced from 282.7 kW/m

(pure PVC) to 243.6 kW/m

. In addition

the maximum smoke density (Ds-max) of PVC/Y

was 263 m

a decrease of 48.5% compared to pure PVC materials (511 m

)

indicating its outstanding ability for smoke suppression. Compared to Sb

can effectively reduce the release of the toxic gas CO (decreasing by 37.5%). Furthermore

the tensile strength of PVC can reach as high as 16.1 MPa. Compared with five widely used commercial flame retardants

demonstrates superior performance

positioning it as a promising alternative to prospective candidates. Therefore

this st

udy developed a rare-earth flame retardant and offers a promising design to improve the fire safety of PVC composites.

关键词

Keywords

references

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