结果表明：随着热拉伸温度的增加，纤维的断裂强度增加，在320℃断裂强度

The results show that as the hot drawing temperature increases, the breaking strength of the fiber increases, and the breaking strength reaches a maximum of 3.58 cN / dtex at 320 ° C. As the hot draw ratio increases, the crystallinity of the fiber increases first and then decreases. The degree of orientation of the fiber increases with the fiber ratio. The breaking strength of the fiber reaches a maximum value of 3.68 cN / dtex when the hot draw ratio is 2 times. .

The results show that with the increase of thermal tensile temperature, the fracture strength of fiber increases, and the fracture strength reaches a maximum of 3.58 cN/dtex at 320 degrees C. With the increase of thermal stretch multiple, the crystallization of fiber increases and decreases, the orientation of the fiber increases with the increase of the fiber multiple, and the fracture strength of the fiber reaches the maximum value of 3.68 cN/dtex when the thermal stretch multiple is 2 times.

The results show that the breaking strength of the fiber increases with the increase of the hot stretching temperature, and reaches the maximum of 3.58 CN / dtex at 320 ℃. The crystallinity of the fiber increases first and then decreases with the increase of the hot drawing ratio, and the orientation of the fiber increases with the increase of the fiber ratio. The breaking strength of the fiber reaches the highest value of 3.68 CN / dtex when the hot drawing ratio is 2 times.<br>