Effect of thermoplastic polyurethane elastomer on the properties of polybutylene terephthalate matrix flame retardant composites

XU Jianlin; AN Jing; KANG Chenghu; FAN Jiliang; LI Chengsi

doi:10.13801/j.cnki.fhclxb.20201117.002

Volume 38 Issue 8

Aug. 2021

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XU Jianlin, AN Jing, KANG Chenghu, et al. Effect of thermoplastic polyurethane elastomer on the properties of polybutylene terephthalate matrix flame retardant composites[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2586-2594. doi: 10.13801/j.cnki.fhclxb.20201117.002

Citation:

XU Jianlin, AN Jing, KANG Chenghu, et al. Effect of thermoplastic polyurethane elastomer on the properties of polybutylene terephthalate matrix flame retardant composites[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2586-2594. doi: 10.13801/j.cnki.fhclxb.20201117.002

Citation:

XU Jianlin, AN Jing, KANG Chenghu, et al. Effect of thermoplastic polyurethane elastomer on the properties of polybutylene terephthalate matrix flame retardant composites[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2586-2594. doi: 10.13801/j.cnki.fhclxb.20201117.002

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Effect of thermoplastic polyurethane elastomer on the properties of polybutylene terephthalate matrix flame retardant composites

doi: 10.13801/j.cnki.fhclxb.20201117.002

XU Jianlin^{1, 2
,
,},
AN Jing^{1, 2
,},
KANG Chenghu^{1, 2
,},
FAN Jiliang^{1, 2
,},
LI Chengsi^{1, 2
,}

1.
School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2.
State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

Received Date: 2020-08-24
Accepted Date: 2020-10-27

Available Online: 2020-11-17

Publish Date: 2021-08-15

Abstract

Abstract

Using brominated polystyrene (BPS) as flame retardant, Sb₂O₃nanoparticles (nano-Sb₂O₃) as synergistic flame retardant, polybutylene terephthalate (PBT) as matrix and thermoplastic polyurethane elasticity (TPU) as a toughening component, TPU/nano-Sb₂O₃-BPS-PBT flame retardant composites were obtained by ball milling dispersion and melt-mixing methods. The mechanical and flame retardant properties of the TPU/nano-Sb₂O₃-BPS-PBT composites were studied by DSC, tensile, impact and limiting oxygen index (LOI) test. The results show that the TPU can enhance the toughness of the TPU/nano-Sb₂O₃-BPS-PBT flame retardant composites. With increasing of the mass fraction of TPU, the notched impact strength of the TPU/nano-Sb₂O₃-BPS-PBT flame retardant composites increases. Furthermore, when the mass fraction of TPU is 9wt%, its impact strength increases by 137% and the elongation at break increases by 340% compared with those of pure PBT, but its tensile strength decreases. The tensile strength of the composites is greater than that of pure PBT when the mass fraction of TPU is 3wt%, which its impact strength is 52% higher than that of the pure PBT. The TPU/nano-Sb₂O₃-BPS-PBT flame retardant composites reach flame-resistant grade and the composites show superior comprehensive performance.
- polybutylene terephthalate,
- Sb₂O₃,
- thermoplastic polyurethane elastomer,
- composites,
- toughening
Long Abstrsct
Innovation Points

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References(22)

References

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