Study on Qualitative Analysis Method of Melamine Fiber
Combustion method,microscope method,dissolution method,infrared spectroscopy,differential scanning calorimetry(DSC)method were used to study the characteristics of melamine fi-ber about combustion characteristics,cross-section morphology,solubility,infrared characteristic peak,melting peak temperature,etc.The results showed that the combustion characteristics of mela-mine fiber were obvious,it did not melt or shrink when close to the flame,and it immediately extin-guished when it left the flame.burning with a slight fishy smell.The characteristic peaks of infrared spectrum are 1668 cm-1,1441 cm-1,1276 cm-1,808 cm-1,etc.The melting peak temperature of DSC is 370℃~380℃,which has certain characteristics.Therefore,the melamine fiber can be accu-rately determined with combustion method,combined with infrared spectroscopy or DSC method.