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The influence of γ-irradiation on the mechanical, thermal degradation, and flame retardant properties of EVA/LDPE/ATH blends

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Abstract

This work aimed to study the influence of γ-irradiation on the mechanical and thermal properties of flame retardant EVA/LDPE/ATH blends. Flame retardant poly(ethylene vinyl acetate)/low-density polyethylene/aluminum hydroxide (EVA/LDPE/ATH) blends were prepared, with a LOI value of 40 % and UL-94 V0 rating. The influence of different γ-irradiation levels on flammability as well as mechanical, electrical, and thermal properties of EVA/LDPE/ATH blends was investigated. The flame resistance of EVA/LDPE/ATH blends was found to be slightly improved after γ-irradiation, and meanwhile the mechanical, electrical, and thermal properties were all enhanced due to the increase of cross-linking density. Moreover, thermogravimetric analysis/infrared spectra (TG-IR) were used to explore the thermal degradation process of the EVA/LDPE blends. TG-IR results indicated that the thermal degradation of EVA/LDPE/ATH blends was delayed after γ-irradiation, and the reduced pyrolysis products amounts were responsible for the improved fire resistance and thermal stability.

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Acknowledgements

The work was financially supported by the Open fund of State Key Laboratory of Fire Science (HZ2012-KF11).

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Authors and Affiliations

  1. State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, Anhui, People’s Republic of China

    Shun Zhou & Yuan Hu

  2. Research and Development Centre, China Tobacco Anhui Industrial Co., Ltd., 9 Tianda Road, Hefei, 230088, Anhui, People’s Republic of China

    Shun Zhou, Min Ning, Xiaofeng Wang, Zhijing Yan, Dongfeng Guo, Qing He, Yaping Zhang & Shike She

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  1. Shun Zhou
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  2. Min Ning
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  3. Xiaofeng Wang
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  4. Zhijing Yan
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  9. Yuan Hu
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Correspondence to Shun Zhou or Min Ning.

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Zhou, S., Ning, M., Wang, X. et al. The influence of γ-irradiation on the mechanical, thermal degradation, and flame retardant properties of EVA/LDPE/ATH blends. J Therm Anal Calorim 119, 167–173 (2015). https://doi.org/10.1007/s10973-014-4101-z

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  • DOI: https://doi.org/10.1007/s10973-014-4101-z

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