From the effects of the composition of the three kinds ofblended systems, the antistatic agent content and theblending methods on the spinnability, the antistatic prop-erty, and the wash fastness of PET filament, it is foundthat the antistatic behavior of the (PET) - (PEG) -(SDBS) - stearate quaternary system is improved greatlydue to the synergefic effect of the combined antistaticagents and the volume resistivity of the fiber made.Thereof reaches 10~8 ～ 10~9Ω·cm after being washed 20 tines in saponaceous water at 40℃. Its spinnability anddrawing behavior are good. The effect of the antistaticagent content on the mechanical property of PET fila-ment is also studied.
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