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Editable beaded polylactic acid fibers and preparation method and application thereof

A polylactic acid fiber, polylactic acid technology, which is applied in the chemical characteristics of fibers, rayon manufacturing, textiles and papermaking, etc., can solve the problems of immature continuous production of intelligent fibers, and is suitable for large-scale preparation, broad application prospects, The effect of good weaving properties

Active Publication Date: 2019-08-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the continuous production of smart fibers is still immature and needs further development
There are no patents on beaded PLA fibers and no report on editable beaded PLA fibers

Method used

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  • Editable beaded polylactic acid fibers and preparation method and application thereof
  • Editable beaded polylactic acid fibers and preparation method and application thereof
  • Editable beaded polylactic acid fibers and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Disperse 20 g of polylactic acid particles in 80 g of dichloromethane solvent, ultrasonically disperse for 6 hours to obtain a uniform and clear polylactic acid solution, and weigh 60 mL of polyethylene glycol 400 liquid for later use. Weigh 10g of inks of three colors that change from blue to white, from green to white, and from red to white at 38°C, respectively, and disperse them in 90g of 1wt% polyvinyl alcohol aqueous solution, and disperse them ultrasonically for 6 hours to obtain three kinds of color-changing inks The dispersion is ready for use.

[0042] (2) Build a microfluidic spinning device with polytetrafluoroethylene tubes. All the polytetrafluoroethylene tubes are connected by Henkel Baide AB glue. The first polytetrafluoroethylene tube 1 is placed vertically, and the second polytetrafluoroethylene tube is The vinyl tube 2 is connected horizontally with the first polytetrafluoroethylene tube 1, the third polytetrafluoroethylene tube 3, the fourth poly...

Embodiment 2

[0048] (1) Disperse 20 g of polylactic acid particles in 80 g of dichloromethane solvent, ultrasonically disperse for 6 hours to obtain a uniform and clear polylactic acid solution, and weigh 50 mL of polyethylene glycol 400 liquid for later use. Weigh 11g of inks of three colors that change from blue to white, from green to white, and from red to white at 38°C, respectively, and disperse them in 88g of 1wt% polyvinyl alcohol aqueous solution, and disperse them ultrasonically for 5 hours to obtain three kinds of color-changing inks The dispersion is ready for use.

[0049] (2) A microfluidic spinning device was built with a polytetrafluoroethylene tube. The construction of the device was the same as in Example 1, and the injection of the five solutions corresponding to the polytetrafluoroethylene tube in step (1) was also the same as in Example 1.

[0050] (3) Put the five solutions in step (1) into five syringes respectively, the syringes are installed on the microfluidic pro...

Embodiment 3

[0052] (1) Disperse 20 g of polylactic acid particles in 80 g of dichloromethane solvent, ultrasonically disperse for 6 hours to obtain a uniform and clear polylactic acid solution, and weigh 60 mL of polyethylene glycol 400 liquid for later use. Weigh 12g of inks of three colors that change from blue to white, from green to white, and from red to white at 38°C, respectively, and disperse them in 97g of 1wt% polyvinyl alcohol aqueous solution, and disperse them ultrasonically for 4 hours to obtain three kinds of color-changing inks The dispersion is ready for use.

[0053] (2) A microfluidic spinning device was built with a polytetrafluoroethylene tube. The construction of the device was the same as in Example 1, and the injection of the five solutions corresponding to the polytetrafluoroethylene tube in step (1) was also the same as in Example 1.

[0054] (3) Put the five solutions in step (1) into five syringes respectively, the syringes are installed on the microfluidic pro...

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Abstract

The invention relates to editable beaded polylactic acid fibers and a preparation method and application thereof. The editable beaded polylactic acid fibers include polylactic acid fiber films and thermosensitive color-changing ink beads of three colors, wherein the polylactic acid fiber films coat the thermosensitive color-changing ink beads. The preparation method includes the steps that thermosensitive color-changing ink suspension solutions of three colors are pushed into a pipeline containing a polylactic acid solution through a microfluidic device, the converged thermosensitive color-changing ink suspension solutions of three colors and the polylactic acid solution are pushed into a receiving device containing polyethylene glycol 400 together, and then collection and standing are conducted. The editable beaded polylactic acid fibers have thermosensitivity and good knitting property and also have information recording and reading functions.

Description

technical field [0001] The invention belongs to the field of color-changing fiber and its preparation and application, in particular to an editable beaded polylactic acid fiber and its preparation method and application. Background technique [0002] In the past 20 years, smart fibers have become a research hotspot due to their unique one-dimensional structural properties (capable of being woven into fabrics and clothes) and potential applications in smart clothing, wearable devices, and robotics. Among many smart fibers, color-changing fibers have attracted great interest from researchers and expanded their applications, such as wearable demonstrations, camouflage, and visual environment sensors. With the progress of research, various color-changing fibers have emerged, such as electrochromic fibers, thermochromic fibers, and structural color fibers. However, the current structure of color-changing fibers is often multi-layered, and the construction process is complicated....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/04D01F1/10D01D1/06D01D13/02
CPCD01D1/06D01D13/02D01F1/04D01F1/10D01F6/92
Inventor 王宏志位艳芳张伟李耀刚张青红侯成义
Owner DONGHUA UNIV
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