Natural or synthetic cellulosic materials are often flammable. They can be burned and can spread the fire in the presence of oxygen. Because of this, their use is limited to applications not requiring fire resistance.
For use in furniture, textiles or composites, cellulosic materials are treated with different fire retardants. The most commonly used retardants are based on halogen, graphite, alkaline-earth metallic compounds or their mixtures. Halogen-based retardants are most effective, but are very harmful to the environment. Others, like Boron compounds, are effective but are water soluble and can only be used in limited applications
This novel technology allows cellulosic materials to be treated in aqueous solution of alkali metal or ammonium hydroxide mixed with alkaline-earth metal or aluminum metal salt.
The process is not damaging to the environment and the treated material becomes self-extinguishing. The material fibers retain their mechanical properties.
The process can be performed on existing equipment thus minimizing investment and production risk.
Resulting materials can be used as is or for the production of polymer composites.
This technology is available for licensing. There is an opportunity for this invention to be developed for particular applications and for demonstration of the final product through a collaborative research project. The business opportunity may be referred to by its NRC ID: 12278.
Applications for this technology are extensive including: textiles, transportation, aerospace, marine, construction, and agriculture.
- Process not damaging to the environment
- Resulting material is self-extinguishing
- Resulting material retains mechanical properties
- Suitable for use with commercially available polymers for composite production
- Easily integrated into existing processes
- Minimized capital investment and production risk
NRC file 12278:
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