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A kind of stretchable electrothermochromic fiber and its preparation method

A thermal-induced discoloration and discoloration technology, applied in fiber treatment, fiber type, yarn, etc., can solve the problems that limit the development of the wearable field, the difficulty of preparing discoloration fibers, and the non-stretchability of fibers, etc., to achieve excellent stretchability, Huge application value, mild effect

Active Publication Date: 2019-10-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the complex multi-layer structure makes the stretching of electrochromic fibers difficult and poor in performance; this complex structure and the use of electrodes also make the fibers almost unstretchable, which limits their application in the wearable field. development of

Method used

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  • A kind of stretchable electrothermochromic fiber and its preparation method
  • A kind of stretchable electrothermochromic fiber and its preparation method
  • A kind of stretchable electrothermochromic fiber and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) 500 mg of graphene oxide powder was dissolved in 100 mL of deionized water, and ultrasonicated for 1 h with an ultrasonic cell pulverizer to obtain a brown graphene oxide dispersion.

[0034] (2) The core-spun yarn (0.0226 g) was ultrasonically placed in deionized water, acetone and ethanol for 15 minutes, dried, and pre-stretched by 40% after plasma treatment for 15 minutes to obtain the treated core-spun yarn.

[0035] (3) Put the core-spun yarn (0.0227g) treated in step (2) into the graphene oxide dispersion in step (1) and soak for 8s, take it out and dry it with a hair dryer to obtain a single-layer graphene oxide-modified bag core yarn.

[0036] (4) Repeat step (3) 30 times with the core-spun yarn modified by single-layer graphene oxide in step (3), to obtain the core-spun yarn modified by multilayer graphene oxide, the core-spun yarn modified by multilayer graphene oxide After the yarn (0.02335g) is released and pre-stretched, it is placed in hydroiodic acid...

Embodiment 2

[0045] (1) 500 mg of graphene oxide powder was dissolved in 100 mL of deionized water, and ultrasonicated for 1 h with an ultrasonic cell pulverizer to obtain a brown graphene oxide dispersion.

[0046] (2) The core-spun yarn (0.0226 g) was ultrasonically placed in deionized water, acetone and ethanol for 15 minutes, dried, and then pre-stretched by 10% after plasma treatment for 15 minutes to obtain the treated core-spun yarn.

[0047] (3) Put the core-spun yarn (0.0227g) treated in step (2) into the graphene oxide dispersion in step (1) and soak for 8s, take it out and dry it with a hair dryer to obtain a single-layer graphene oxide-modified bag core yarn.

[0048] (4) Repeat step (3) 30 times with the core-spun yarn modified by single-layer graphene oxide in step (3), to obtain the core-spun yarn modified by multilayer graphene oxide, the core-spun yarn modified by multilayer graphene oxide After the yarn (0.02326g) is released and pre-stretched, it is placed in hydroiodic...

Embodiment 3

[0051] (1) 500 mg of graphene oxide powder was dissolved in 100 mL of deionized water, and ultrasonicated for 1 h with an ultrasonic cell pulverizer to obtain a brown graphene oxide dispersion.

[0052] (2) The core-spun yarn (0.0226 g) was ultrasonically placed in deionized water, acetone and ethanol for 15 minutes, dried, and pre-stretched by 50% after plasma treatment for 15 minutes to obtain the treated core-spun yarn.

[0053] (3) Put the core-spun yarn (0.0227g) treated in step (2) into the graphene oxide dispersion in step (1) and soak for 8s, take it out and dry it with a hair dryer to obtain a single-layer graphene oxide-modified bag core yarn.

[0054] (4) Repeat step (3) 30 times with the core-spun yarn modified by single-layer graphene oxide in step (3), to obtain the core-spun yarn modified by multilayer graphene oxide, the core-spun yarn modified by multilayer graphene oxide After the yarn (0.02354g) was released and pre-stretched, it was placed in hydroiodic ac...

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Abstract

The invention relates to stretchable electric-heating-induced chameleon fiber. Core-spun yarn serves as an elastic substrate, and a conducting layer, a protection layer and a chameleon layer are prepared on the surface of the substrate in sequence. A preparing method comprises the steps of pre-treatment of the core-covering yarn, synthesis of the core-spun yarn modified by multilayer graphene oxide, synthesis of the core-spun yarn modified by multilayer graphene, and synthesis of stretchable electric-heating-induced chameleon fiber. According to the stretchable electric-heating-induced chameleon fiber and the preparing method thereof, the method is simple, the condition is mild, the cost is low, and thus the stretchable electric-heating-induced chameleon fiber is suitable for scale production. The obtained stretchable electric-heating-induced chameleon fiber can be changed into multiple colors, has good electroconductivity and cycling stability, and meanwhile shows excellent stretchable performance; basis is provided for functionalization and intellectualization of fiber, and the stretchable electric-heating-induced chameleon fiber has high application value in the aspect like military camouflage, intelligent wearability and visual sensors.

Description

technical field [0001] The invention belongs to the field of color-changing fibers, and in particular relates to a stretchable electrothermochromic fiber and a preparation method thereof. Background technique [0002] Color-changing fiber is a fiber with special composition or structure that can change color after being stimulated by external conditions such as light, electricity, magnetism, heat, moisture or radiation. The color-changing fiber was first used on the battlefield of the Vietnam War in 1970. The Cyanamide company of the United States developed a photochromic fiber to meet the requirements of the US military for combat clothing. This type of fiber can change color after absorbing light. Since then, color-changing fibers with different mechanisms have continued to develop, mainly including thermochromism, electrochromism, magnetochromism, photochromism, wet-induced coloring, etc., showing great potential in smart wearables, military camouflage, and flexible displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/04D02G3/32D02G3/44D02J1/22D06B3/04D06B9/00D06B13/00D06M11/74D06M15/643D06M101/32D06M101/20
Inventor 王宏志李强李克睿范宏伟侯成义李耀刚张青红
Owner DONGHUA UNIV