A kind of editable beaded polylactic acid fiber and its preparation method and application

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 achieves suitable for large-scale preparation, good mechanical properties, The effect of broad application prospects

Active Publication Date: 2021-11-02
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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  • A kind of editable beaded polylactic acid fiber and its preparation method and application
  • A kind of editable beaded polylactic acid fiber and its preparation method and application
  • A kind of editable beaded polylactic acid fiber and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) 20g of polylactic acid particles are dispersed in 80g of methylene chloride solvent, 6h ultrasonic dispersion to obtain a uniform clear solution of polylactic acid, polyethylene glycol 400 liquid weighed 60mL standby. Weigh 10g 38 ℃ changed from blue to white, from green to white, the three colors red to white ink dispersion in an aqueous solution of 90g of polyvinyl alcohol 1wt%, respectively, ultrasonic dispersion 6h, giving three types of color ink dispersion was reserved.

[0042] (2) using a Teflon tube microfluidic structures spinning apparatus, all the tubes are made of polytetrafluoroethylene Henkel Decker AB glue connection, the PTFE tube longitudinally disposed first, second PTFE vinyl tube 2 and the first transverse tube connected to PTFE, PTFE tube 3 the third, fourth polytetrafluoroethylene tube 4, sequentially fifth PTFE tube 5 and the second PTFE tube 2 longitudinally connected. Polyethylene glycol 400 is injected from a first PTFE tube 1, a polylactic ac...

Embodiment 2

[0048] (1) 20g of polylactic acid particles are dispersed in 80g of methylene chloride solvent, 6h ultrasonic dispersion to obtain a uniform clear solution of polylactic acid, polyethylene glycol 400 liquid weighed 50mL standby. Weigh 11g 38 ℃ changed from blue to white, from green to white, the ink of three colors red to white are dispersed in 88g of an aqueous solution of 1wt% polyvinyl alcohol, ultrasonic dispersion 5h, to obtain three kinds of color ink dispersion was reserved.

[0049] (2) using a Teflon tube microfluidic structures spinning apparatus, device structures same as in Example 1, Step (1) corresponding to the five kinds of solution are also the same as in Example 1 PTFE tube implantation.

[0050] (3) The step (1) of Five solutions were charged five syringes, the syringe mounted in a microfluidic propulsion pump, syringe, and the step (2) tight connection microfluidic device, to adjust each injector advance rate: V 聚乳酸 = 25μL / min; rate of each color ink propulsi...

Embodiment 3

[0052] (1) 20g of polylactic acid particles are dispersed in 80g of methylene chloride solvent, 6h ultrasonic dispersion to obtain a uniform clear solution of polylactic acid, polyethylene glycol 400 liquid weighed 60mL standby. Weigh 12g 38 ℃ changed from blue to white, from green to white, the three colors red to white ink dispersion in an aqueous solution of 97g of polyvinyl alcohol 1wt%, respectively, ultrasonic dispersion 4h, to give three kinds of color ink dispersion was reserved.

[0053] (2) using a Teflon tube microfluidic structures spinning apparatus, device structures same as in Example 1, Step (1) corresponding to the five kinds of solution are also the same as in Example 1 PTFE tube implantation.

[0054] (3) The step (1) of Five solutions were charged five syringes, the syringe mounted in a microfluidic propulsion pump, syringe, and the step (2) tight connection microfluidic device, to adjust each injector advance rate: V 聚乳酸 = 25μL / min; rate of each color ink pr...

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Abstract

The invention relates to an editable beaded polylactic acid fiber and its preparation method and application. The fiber includes a polylactic acid fiber membrane and three colors of temperature-sensitive color-changing ink beads wrapped by the polylactic acid fiber membrane. The method includes: pushing the temperature-sensitive color-changing ink suspension of three colors into the pipeline containing the polylactic acid solution through the microfluidic device, and pushing the temperature-sensitive color-changing ink suspension of the three colors together with the polylactic acid solution In a receiving device filled with polyethylene glycol 400, collect, let stand. The fiber has temperature sensitivity and good weaving performance, and also has the function of information recording and reading.

Description

Technical field [0001] The present invention belongs to the discoloration fibers and their preparation and application, and in particular, the present invention relates generally to an editable beaded polylactic acid fiber and a preparation method thereof. Background technique [0002] In the past 20 years, smart fibers have become a research hotspot due to unique one-dimensional structural properties (capable of woven fabric and clothes) and potential applications in smart clothing, wearable devices and robotics. In numerous smart fibers, color-changing fibers attract great interest in researchers and expand their applications, such as wearable demonstrations, camouflage, visual environment sensors, etc. As the study progresses, a variety of discoloration fibers, such as electrochromic fibers, thermochromic fibers, structural fibers. However, the structure of current discoloration fibers is often multilayer, the construction process is complicated, and for practical applications...

Claims

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Application Information

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Patent Type & Authority Patents(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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