Preparation of polyphenylene sulfide spunbonded nonwoven material and its filterability

In order to prepare polyphenylene sulfide spunbonded nonwoven material,the properties of polyphenylene sulfide(PPS) were studied by DSC,TG and MFR firstly.The study results showed that PPS had good thermal stability with melt flow rate(MFR) reaching the maximum value at 315 ℃,i.e.,158.7 g/10 min.On this basis,the PPS spunbonded nonwoven material was successfully prepared with a laboratory spunbonding machine.Then,its filterability was tested.The results showed that the fibers of PPS spunbonded nonwoven material have an average diameter of 37.6 μm,and average pore size of 31.6 μm,with the curve of aperture distribution belonging to the normal distribution one.The filterability of the material for particles larger than 10 μm was up to 98.1%.