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High-Temperature Mechanical Properties of Basalt Fibers: A Step Towards Fire-Safe Materials for Photovoltaic Applications

Author

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  • Bangjian Wang

    (School of Civil Engineering and Architecture, Hainan University, Haikou 570228, China
    Xi’an XD New Energy Co., Ltd., Xi’an 710075, China)

  • Lihua Xu

    (Key Laboratory of Solar Energy Science and Technology in Jiangsu Province, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Tianze Chen

    (Key Laboratory of Solar Energy Science and Technology in Jiangsu Province, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Bowen Hou

    (School of Civil Engineering and Architecture, Hainan University, Haikou 570228, China)

  • Jianxun Liu

    (Key Laboratory of Solar Energy Science and Technology in Jiangsu Province, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Yijun Shen

    (School of Marine Science and Engineering, Hainan University, Haikou 570228, China
    State Key Laboratory of Marine Resources Utilization in South China, Hainan University, Haikou 570228, China)

  • Rao Kuang

    (School of Marine Science and Engineering, Hainan University, Haikou 570228, China
    State Key Laboratory of Marine Resources Utilization in South China, Hainan University, Haikou 570228, China)

Abstract

Amidst the urban energy transition towards clean and renewable energy, distributed photovoltaic (PV) systems are emerging as critical infrastructure. However, the evolution of PV rack and mount systems has lagged, particularly in addressing cost efficiency and fire safety This study focuses on the high-temperature mechanical properties of basalt fibers (BFs), a key component of basalt fiber-reinforced polymer (BFRP), to establish a foundational understanding for future BFRP applications. The experimental results demonstrate that basalt fibers retain approximately 150 MPa residual tensile strength at 600 °C (30–40% of room temperature strength of Q235B steel) and 94 MPa at 800 °C, outperforming steel under similar conditions. Furthermore, the decomposition of wetting agents and Fe 2+ oxidation at 600 °C was observed to stabilize after 100 min, maintaining structural integrity. These findings validate the high-temperature performance of BF, paving the way for subsequent studies at the BFRP composite level, which will address structural optimization and fire-resistance strategies for PV rack and mount systems. This research provides a critical step toward improving the safety and sustainability of urban PV systems.

Suggested Citation

  • Bangjian Wang & Lihua Xu & Tianze Chen & Bowen Hou & Jianxun Liu & Yijun Shen & Rao Kuang, 2024. "High-Temperature Mechanical Properties of Basalt Fibers: A Step Towards Fire-Safe Materials for Photovoltaic Applications," Sustainability, MDPI, vol. 16(24), pages 1-13, December.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:24:p:10853-:d:1541539
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    References listed on IDEAS

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    1. Zhixin Zhang & Min Chen & Teng Zhong & Rui Zhu & Zhen Qian & Fan Zhang & Yue Yang & Kai Zhang & Paolo Santi & Kaicun Wang & Yingxia Pu & Lixin Tian & Guonian Lü & Jinyue Yan, 2023. "Carbon mitigation potential afforded by rooftop photovoltaic in China," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Assouline, Dan & Mohajeri, Nahid & Scartezzini, Jean-Louis, 2018. "Large-scale rooftop solar photovoltaic technical potential estimation using Random Forests," Applied Energy, Elsevier, vol. 217(C), pages 189-211.
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