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Super retarding-flame wood.

Sen Gao1, Jing Ren2, Baoping Zhang3

  • 1Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.

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Summary
This summary is machine-generated.

This study introduces Surf-wood, a novel flame-retardant wood material. It effectively prevents combustion even under extreme conditions, offering a sustainable solution for enhanced wood safety.

Keywords:
Cell wallFlame retardantLimiting oxygen indexSustainabilityWood

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Area of Science:

  • Materials Science
  • Wood Science
  • Fire Safety Engineering

Background:

  • Wood is a sustainable building material, but its flammability limits applications.
  • Current flame-retardant treatments are often insufficient for extreme fire conditions.
  • Integrating flame retardants uniformly into wood's complex structure is challenging.

Purpose of the Study:

  • To develop a highly flame-retardant wood material with enhanced safety.
  • To overcome limitations of traditional surface and internal flame-retardant methods.
  • To create a scalable process for producing advanced flame-retardant wood.

Main Methods:

  • Developed a molecular-scale cell wall engineering strategy.
  • Facilitated effective distribution of flame retardant metal salts within wood cell walls.
  • Engineered a super flame-retardant wood, termed Surf-wood.

Main Results:

  • Surf-wood achieved a limiting oxygen index of ~100%.
  • Demonstrated 80% reduction in peak heat release rate and 96% reduction in smoke production.
  • Withstood 12 minutes of burning at 1300°C without structural collapse, even in charcoal fire.

Conclusions:

  • Surf-wood offers superior flame retardancy compared to natural wood.
  • The molecular-scale engineering approach is effective for creating advanced wood materials.
  • Scalable production of Surf-wood maintains wood's aesthetic and functional properties, enabling new applications.