Abstract
In an environment that emphasizes ecological sustainability, there is increasing interest in the development of bio-building materials to achieve carbon neutrality. Among bio-building materials, plant-based materials must also consider improving fire resistance. In this study, we developed composite materials with improved fire resistance by adding 0 %, 5 %, and 10 % biochar to bio-materials. A clear improvement in fire resistance was observed in the composite material (CB10) added with 10 % biochar. Through TGA analysis, thermal stability was improved by about 27.6 %, and through cone calorimeter testing, it was confirmed that the peak heat release rate was reduced by 34.5 %. The time to reach the maximum value was also delayed from 25 s to 45 s. This study confirmed that biochar is an eco-friendly fire retardancy that acts as a barrier against heat and oxygen, and that bio-materials can also stably improve fire resistance.
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