Polyphenylene sulfide composite filament one-step method complete plant and production method
A technology of polyphenylene sulfide and composite filament, which is applied in the direction of conjugated synthetic polymer artificial filament, filament/thread forming, filament forming treatment, etc., which can solve the problem of high quality, high processing cost and uniformity In order to reduce the cost of raw materials, increase the production rate, and manage easily
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[0030] Example 1
[0031]Component A uses linear PPS chips with an MFR of 210g / 10min. In order to avoid polyphenylene sulfide chips from causing blockage during screw melt extrusion, causing pressure fluctuations, oxidative degradation and crosslinking, before melt spinning, Drying is carried out in a well-known vacuum drum or pre-crystallization drying equipment, and the moisture content is 23PPM. Screw temperature during melting is 280~325℃; component B uses PET chips with intrinsic viscosity 0.67, moisture content after drying is 21PPM, and screw temperature during melting is 278~295℃. The temperature of the composite box is controlled at 300℃, the diameter of the spinneret is 0.3mm, the ratio of length to diameter (L / D) is 6, the number of holes in the spinneret is 60, the slow cooling zone is 10cm below the spinneret, slow cooling zone The temperature is 240℃; the wind temperature in the cooling zone is 25℃; the oil is applied according to the 1.5% oiling rate; the three draf...
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[0032] The spinning conditions of Example 2 are the same as those of Example 1, except that a four-pass drafting process is used during drafting. Refer to Table 1 for drafting conditions and physical properties.
Example Embodiment
[0033] The component A of Example 3 is the same as that of Example 1, and the component B is PEN with a water content of 26PPM, and the screw temperature during melting is 275-290°C. The spinning and drawing winding conditions are the same as in Example 1.
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