从图中可以看到纤维的热收缩率随着温度的升高而增加。这是由于纤维分子内部

It can be seen from the figure that the thermal shrinkage rate of the fiber increases as the temperature increases. This is because the amorphous molecular segments inside the fiber molecules tend to crimp conformation. As the temperature increases, the internal stress of the fiber macromolecules relaxes, the entropy value of the system increases, and the molecular chains gradually develop from an ordered state to a disordered state. The increase in de-orientation results in an increase in the thermal shrinkage of the fiber.

The thermal shrinkage of the fibers can be seen increasing with the increase in temperature. This is due to the tendency of the amorphous molecular chain segments inside the fiber molecules to curl the conformation, with the increase of temperature, the internal stress of the fiber macromolecules is relaxed, the system entropy value increases, the molecular chain gradually develops from an orderly state to a disordered state, and the solution orientation increases, resulting in an increase in the thermal shrinkage of the fiber.

It can be seen from the figure that the thermal shrinkage of the fiber increases with the increase of temperature. With the increase of temperature, the internal stress of the fiber macromolecules is relaxed, the entropy of the system increases, the molecular chain gradually develops from the ordered state to the disordered state, and the de orientation increases, which leads to the increase of the thermal shrinkage of the fiber.<br>