Sodium polyborate as flame retardant for cellulose

I think soufa sodium polyborate is effective as a flame retardant for cellulose.
Phosphoric acid-based flame retardants are often used in paper and wood, but problems have been pointed out, such as yellowing and loss of firmness.
Therefore, it can be said that sodium polyborate, a boron-based flame retardant newly introduced in the flame retardant market, has a high effect of imparting flame retardancy to cellulose.

Originally developed as a flame retardant for wood, it is now shipping to various places with potential for other cellulosic materials.
Now other uses are shipping more than their original uses.

Therefore, it can be applied to, for example, cardboard, paper, and Japanese paper. Works well on pulp-based materials.

So, in soufa, we sprayed soufa on the tissue that you use every day in paper and dried it and ignited it with a lighter.

Non-burnable tissue * Does not spread as charcoal

I just sprayed soufa on a normal tissue and dried it. The tissue itself was slightly stiff, but did not ignite.
The spraying looks like this.

It is a boron-based flame retardant that works very effectively on cellulosic materials.
We believe that we can handle cases where wood flour is mixed in the resin deck. In recent years, we are expecting to provide flame retardancy to CNF (cellulose nanofiber).

Application to wood flour is being verified by several manufacturers.
Simple tests have shown good results.


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