News: New Polyurethane Reinforcement Material for Coal Mines Developed by Ningxia Coal Energy Group
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Date: August 21, 2025
Source: China Energy News
The Coal-to-Oil Chemical Research Institute of the National Energy Group Ningxia Coal Energy Group recently announced a key breakthrough in the development of polyurethane reinforcement materials for coal mines. Aiming to address long-standing industry challenges-such as flammability, high costs, and toxic gas emissions associated with traditional materials-the R&D team has successfully created a new generation of high-performance polyurethane reinforcement products.
Highlights of Technological Advancement
Formula and Process Innovation
The research team developed an efficient compounding technique using polyether polyols, high-efficiency catalysts, eco-friendly flame retardants, and isocyanates. After nearly a hundred rounds of experimental optimization, a two-component (A and B) system was perfected. This system achieves rapid cross-linking through a swift chemical reaction, generating a significant synergistic effect.
Significant Improvement in Safety Performance
Bonding Strength: The interfacial bonding strength of the new product with coal-rock mass is 1.5 times higher than that of traditional products, significantly enhancing the stability of mine roadways.
Temperature Control for Safety: The peak reaction temperature is strictly controlled within 98°C, well below the safety threshold for underground coal mines, fundamentally eliminating combustion risks triggered by excessive heat.
Eco-Friendly: The introduction of a green flame-retardant system has significantly reduced the release of toxic gases, improving the underground working environment.
Progress in Industrialization
Currently, the technology has led to 2 patent applications and the establishment of 3 enterprise standards. The promotion and application of this new material not only provide robust new technical support for coal mine safety production but also inject fresh momentum into the industry's transition towards greener and smarter practices.
The Value of Polyurethane in Industrial Safety (Extended Insight)
This news reflects a key trend in polyurethane materials: their evolution from general-purpose materials to high-performance, high-safety specialty materials.
Why Polyurethane? Its fast reaction time, high bonding strength, and injectable, penetrating nature make it exceptionally suitable for rapid reinforcement and water-sealing operations in mine roadways.
Addressing Industry Pain Points: The primary concerns for traditional polyurethane in mining have been flame retardancy and exothermic reaction heat. The achievement by the Ningxia Coal Energy R&D Institute precisely targets and overcomes these two critical industry bottlenecks through chemical modification and formulation design.
If you are more interested in the latest news about polyurethane in other fields-such as sealing applications (like the EPDM comparison discussed earlier), footwear materials, or building insulation-I can provide you with related, up-to-date information.