We are searching for some fire-retardant chemicals, which gives permanent fire retardant property, but will NOT affect the natural hydrophilic property and permeability of cotton fabric. Could anyone help me?
Yes Omkar, for regular fire retardant, the fabric become hydrophobic. I'm searching something different.
Can you treat the cotton with something to make it hydrophilic after you apply the flame retardant? There are a number of treatments that may be applied to materials to make them hydrophilic including a short corona exposure. Corona treatment of cotton is not uncommon (see these articles - http://nopr.niscair.res.in/bitstream/123456789/12654/1/IJFTR%2036(3)%20289-299.pdf -and- http://www.ajol.info/index.php/ajb/article/viewFile/58552/46894). After the corona treatment you could apply a molecular monolayer of methyltrimethoxysilane or something similar if you want to further modify the surface characteristics of the fiber. I don't actually know how this would effect the fire resistance of the material so you would have to do some experiments.
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