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
- Chinese Journal of Polymer Science Vol. 43, Issue 12, Pages: 2241-2251(2025)
- 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：
- DOI：10.1007/s10118-025-3449-9
  CLC：
- Received：31 July 2025，
  
  Accepted：05 September 2025，
  
  Published Online：19 November 2025，
  
  Published：15 December 2025
- 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

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.
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.

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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