Add brominated flame retardants commonly used decaBDE, brominated polystyrene (BPS), brominated epoxy resin (BER), double (tribromophenoxy) ethane. For example in terms of: adding 10% -15% of bromine flame retardants, 3% -5% of antimony trioxide can PBT with 30% glass fiber reaches UL94 V-0 level, oxygen index of 27% - 29%. Using a flame retardant must be noted that in the dispersion of PBT and PET, easy exudative, and a polyester gloss, mechanical strength.
Phosphate added bromine; common is tris (dibromophenyl) phosphate (TDBPPE), as contained in the same molecule Br, P element, it has a synergistic effect of a halogen-phosphorus. In retardant PBT and PET and very efficient. Here we should note that in the fire-retardant treatment often Tim; trioxide to synergistic, if we make the oxygen index test, then the limiting oxygen index will increase, but in the oxygen-rich test environment, Sb and P seems there will be a confrontational role. Thus, UL94 vertical burning flame to evaluate the performance of the system is the most appropriate.PVC plasticizer
PET flame retardant fibers and fabrics used. There are usually two ways: one is to use six HBCD flame of PET fabric for post-processing. This fabric can be used for curtains, curtain, bags and other indoor decorative wall covering with a cloth. As the finishing approach, flame retardants and easy exudation, flame retardant fabric texture and durability will be less certain. The second is a copolymer modified flame These reactive bromine-containing flame retardant monomers are mainly aromatic compounds, aryl phosphine oxide-containing compounds containing brominated aromatic phosphine oxide compounds. Because it is fire retardant elements become part of the Centre oligomer molecules, and therefore have a flame-retardant effect lasting, feel good, light, etc., is today the country PET flame retardant fibers and fabrics major way.
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