State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201600, China.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201600, China.
J Colloid Interface Sci. 2020 Jan 15;558:115-122. doi: 10.1016/j.jcis.2019.09.113. Epub 2019 Sep 28.
Chromatic fibers that change color in response to external stimuli are expected to be widely used in various applications such as anti-counterfeiting, military camouflage, and wearable displays. Advanced chromatic fibers with polychromatic and editable color properties behavior are strongly desired for practical applications but have not yet been realized using existing spinning technologies. Here, we present the low-cost, continuous microfluidic spinning of editable polychromatic polylactide (PLA) fibers. The structure and performance of the polychromatic PLA fibers were precisely controlled by adjusting the parameters used in microfluidic spinning. The structure of the as-spun products evolved through three different stages based on the editable encapsulation of functional materials into the PLA matrix. Fibers with versatile performance were achieved. A beaded polychromatic PLA fiber showed the possibility to delivery coded information through its editable chromatic behavior. A core-shell polychromatic PLA fiber showed good mechanical properties and knittability, which make it promising to fabricate smart color-changing textiles.
预期对外部刺激做出颜色变化响应的彩色纤维将在各种应用中得到广泛应用，例如防伪、军事伪装和可穿戴显示器。对于实际应用，人们强烈希望具有多色和可编辑颜色属性行为的先进彩色纤维，但使用现有纺丝技术尚未实现。在这里，我们提出了低成本、连续的微流控纺丝，可编辑的多色聚乳酸（PLA）纤维。通过调整微流控纺丝中使用的参数，可以精确控制多色 PLA 纤维的结构和性能。基于将功能材料可编辑地封装到 PLA 基质中，所纺产品的结构经历了三个不同的阶段。实现了具有多种性能的纤维。多色 PLA 珠状纤维通过其可编辑的变色行为显示了传递编码信息的可能性。多色 PLA 核壳纤维显示出良好的机械性能和可编织性，有望制造智能变色纺织品。
