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在降低熔体特性粘度、提升负荷的条件下,通过提高拉伸倍数、拉伸温度等来保证断裂强度等品质指标,改善了纤维的拉伸性能。原丝的拉伸率是确定纺丝工艺调整方向和幅度的重要依据。
Under the condition of reducing the intrinsic viscosity of the melt and increasing the load, quality indexes such as breaking strength and the like can be ensured by increasing draw ratio and stretching temperature, thereby improving the tensile property of the fiber. Stretching of raw silk is an important basis for determining the direction and amplitude of spinning process adjustment.