Intelligent temperature-regulating phase-change fiber and preparation method thereof

The invention provides an intelligent temperature-regulating phase-change fiber, which is prepared by the following steps: (1) placing a phase-change microcapsule in a polyvinyl alcohol solution, and carrying out ultrasonic dispersion, filtration and drying to obtain a polyvinyl alcohol-coated microcapsule; and (2) adding the polyvinyl alcohol microcapsule obtained in the step (1) into a spinning polymer material slice, uniformly mixing, heating, carrying out melt spinning, drafting, enabling nascent fiber to pass through a sodium hydroxide aqueous solution, drafting, and rolling, so as to obtain the intelligent temperature-regulating phase-change fiber. The fiber has good biological compatibility, the preparation method is simple, the obtained intelligent temperature-adjusting phase change fiber has high phase change enthalpy, leakage of a phase change material can be effectively prevented in the using process, and the obtained fiber is good in softness and good in hand feeling. 本发明提供了一种智能调温相变纤维，包括如下步骤：(1)将相