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<p>Bentonite has a typical layered three-dimensional lattice structure, which gives it a huge specific surface area and pore structure. Combined with specific modification methods, modified bentonite can be used for the management of specific coal mine hazards. Disaster management in coal mines depends heavily on implementing various disaster control materials, and the combined effects between disaster media and materials determine whether the materials’ potential can be fully realized. Following long-term research on bentonite-based materials, four interfacial modification methods were applied to enhance the performance of bentonite-based materials. Utilizing the characteristics of bentonite, six kinds of disaster control materials have been developed. Borehole micro-fracture solid–liquid two-phase long-lasting sealing material increased the gas extraction concentration from 7.2 to 77.8%, fire prevention and high water retention materials to reduce the spontaneous combustion of coal exothermic rate of 30.1%, and acidification CO adsorption material elimination rate of 54.5%; blast suppression effect of underground blast suppression materials has increased by 37.5%, high geothermal heat-insulating materials to improve the temperature effect of 40%, and fire-retardant the flexible tensile rate of blocking material is increased by 52.62%. The results show that the modified bentonite-based materials offer good disaster control and outstanding value in controlling disasters in coal mines.</p>

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Exploring Modification Mechanisms and Versatile Applications of Bentonite-Based Materials

  • 期刊论文

  • 发表日期：

    2025年2月28日

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  • Jianwei Cheng,
  • Rong Chen,
  • Yu Wang,
  • Yuhang Wu,
  • Rui Zhang,
  • Xinrui Zheng,
  • Pinpin Guan,
  • Ma Yongzhen,
  • Ahmad Ihsan

摘要

Bentonite has a typical layered three-dimensional lattice structure, which gives it a huge specific surface area and pore structure. Combined with specific modification methods, modified bentonite can be used for the management of specific coal mine hazards. Disaster management in coal mines depends heavily on implementing various disaster control materials, and the combined effects between disaster media and materials determine whether the materials’ potential can be fully realized. Following long-term research on bentonite-based materials, four interfacial modification methods were applied to enhance the performance of bentonite-based materials. Utilizing the characteristics of bentonite, six kinds of disaster control materials have been developed. Borehole micro-fracture solid–liquid two-phase long-lasting sealing material increased the gas extraction concentration from 7.2 to 77.8%, fire prevention and high water retention materials to reduce the spontaneous combustion of coal exothermic rate of 30.1%, and acidification CO adsorption material elimination rate of 54.5%; blast suppression effect of underground blast suppression materials has increased by 37.5%, high geothermal heat-insulating materials to improve the temperature effect of 40%, and fire-retardant the flexible tensile rate of blocking material is increased by 52.62%. The results show that the modified bentonite-based materials offer good disaster control and outstanding value in controlling disasters in coal mines.