在拉伸温度相同的情况下，纤维的断裂强度随着拉伸倍数的增加而增加，断裂伸

When the stretching temperature is the same, the breaking strength of the fiber increases as the stretching ratio increases, and the breaking elongation decreases as the stretching ratio increases. This is because increasing the draft ratio is conducive to the orientation and shape of polymer molecular chains, the regularity of macromolecular structure in the fiber is improved, the slippage between the fiber macromolecules is not easy to occur, it is easy to form a dense structure, and the elongation at break is reduced.

In the same tensile temperature, the fracture strength of the fiber increases with the tensile multiple, and the break elongation decreases with the increase of the stretch multiple. This is due to increase the extension multiple, is conducive to the polymer molecular chain orientation shaping, fiber in the macromolecule structure of the standard improvement, fiber macromolecules are not easy to produce slip, easy to form dense structure, break force elongation rate decreased.

At the same drawing temperature, the breaking strength of the fiber increases with the increase of drawing ratio, while the elongation at break decreases with the increase of drawing ratio. This is due to the increase of draft ratio, which is conducive to the orientation and shape of polymer molecular chain, the improvement of macromolecular structure regularity in the fiber, and the formation of dense structure between fiber macromolecules, and the reduction of elongation at break.<br>