Influence of PPS fibers on structure and mechanical properties of basalt/PPS needle-punched composite filter materials

In order to investigate the surface morphology of web,morphological structure and mechanical properties of the composite filter materials of different PPS fiber weight percentages,basalt fibers were mixed with PPS fibers with different weight percentages,and after opening,carding,cross lapping,pre-needling and needling,the composite filter materials were resulted,which were characterized by stereo microscope,SEM,and electronic fabric tensile tester.The experimental results displayed that the degree of single fiberizing and fiber disordered arrangement increased,the web uniformity was improved,and the entanglement between fiber-to-fiber and fiber-to-base fabric in composite filter materials was enhanced by adding PPS fibers.The breaking strength of filter materials raised significantly both in cross-direction(CD) and machine-direction(MD),and the breaking strength of filter materials with 30% PPS fibers were 2.5 times as much as that of the pure basalt filter materials in CD.