Abstract
The fllammability of Poly-xylyleneadipamide (XDA-6) fiber was investigated by LOI (Limiting Oxygen Index) test, APEX test and 45° Coil test. The flash point and the ignition behavior were also studied by using an electric furmance. LOI value of XDA-6 is a little higher than that of nylon 6 and PET. APEX test shows that XDA-6 fabric is difficult to ignite and burn rapidly except very light weight fabric. It was shown by 45° Coil test that XDA-6 fabric is difficult to continue burning but nylon 6 and PET fabrics are easy to burn.
According to the experimental results of XDA-6 fibers, no ignition point was found below 650°C.
The thermogravimetric behavior of several fibers was studied and discussed in relation to the flammability of these fibers. XDA-6, nylon and PET show two ranges of weight-decreasing temperature while the weight loss in first range of XDA-6 is small compared with the others. The amount of the residue at 600°C were, in order, 17.0% (XDA-6), 8.8% (nylon 66) 3.8% (PET) and 1.5% (nylon 6).
