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In this experiment, a polyphenylene sulfide as a raw material, in the a homemade plunger type spinning machine with an annular spinneret to prepare a hollow fiber by melt spinning , and heat treatment to form a microporous hollow fiber membrane after repeated stretching . The article first discusses the fibril formation of the spinning process conditions , the spinning temperature , extrusion rate, nitrogen flux and cooling conditions as well as the winding speed of the hollow fibers forming a structure and properties . Then he discusses the process of drafting into the hole , specifically focusing on the stretching temperature , stretching the multiples and heat treatment conditions on the supramolecular structure and mechanical properties of the hollow fiber . Finally , the performance of the microporous film , such as pore size , flux, porosity , a simple test. In the test means , using differential scanning calorimetry (DSC), scanning electron microscopy ( SEM ) , wide-angle X-ray diffraction analysis ( WAXD ) SSY- 1 Sound Velocity , single yarn strength tester hollow fiber structure and performance analysis . The results show that the PPS is the raw material by melt spinning - stretching - the heat-setting process can be prepared by micro- porous hollow fiber membrane . By the heat treatment of the fibrils can be obtained more perfect lamellar structure, the size of the micropores can be controlled by changing the draft ratio and draw temperature .
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