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Preparation method for controllable and even silver nanowire electric conduction fibroin fiber bundle

A technology of silver nanowires and silk fibers, which is applied in fiber processing, animal fibers, silk reeling, etc., can solve the problems of poor durability and electrical conductivity, and cannot be directly implanted into the body.

Inactive Publication Date: 2018-11-06
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The durability and conductivity of the final sample are not very good, and it cannot be directly implanted into the body

Method used

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  • Preparation method for controllable and even silver nanowire electric conduction fibroin fiber bundle

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preparation example Construction

[0034] see figure 1 , figure 1 It is a schematic diagram of the steps of the preparation method of the controllable and uniform silver nanowire conductive silk fiber bundle of the present invention. Such as figure 1 As shown, the present invention provides a kind of preparation method of controllable uniform silver nanowire conductive silk fiber bundle, comprising the following steps:

[0035] Step 1: reeling out multiple fibers from the silkworm cocoon, and fully degumming to obtain multiple glue-free fibers;

[0036] In one embodiment, this step can be specifically performed as follows: 1-10 fibers are reeled from silkworm cocoons, and fully degummed to obtain glue-free fibers, wherein the degumming method is to add silkworm cocoons to 0.5-1% sodium carbonate solution, Heat to 100°C, boil for 45-60 minutes, then take it out, wash it in deionized water for several times, and repeat the operation again.

[0037] Step 2: passing the plurality of glue-free fibers through the...

Embodiment 1

[0063] This implementation case shows a method for preparing a controllable and uniform silver nanowire conductive silk fiber bundle according to the following steps:

[0064] Step 1: Reel 2 fibers from silkworm cocoons, add silkworm cocoons to 0.5% sodium carbonate solution, heat to 100°C, boil for 45min, then take out and wash in deionized water several times. Repeat the operation one more time.

[0065] Step 2: Merge into a fiber bundle through the thread collector, wind it through the winding device, and control the tension of the fiber at 1cN to ensure the tension state of the fiber bundle.

[0066] Step 3: Pass 15wt% fiber bundles through a silk fibroin solution bath so that the surface of the fibers is coated with silk fibroin solution, and use a collector with a central hole diameter of 15um and a roundness tolerance of 0.1um to control the amount of silk fibroin coating.

[0067] The silk fibroin solution is prepared using common methods:

[0068] The silk fibroin s...

Embodiment 2

[0082] Step 1: Reel 6 fibers from silkworm cocoons, add silkworm cocoons to 0.8% sodium carbonate solution, heat to 100°C, boil for 50 minutes, then take them out and wash them in deionized water several times. Repeat the operation one more time.

[0083] Step 2: Merge into a fiber bundle through the thread collector, wind it through the winding device, and control the tension of the fiber at 5cN to ensure the tension state of the fiber bundle.

[0084] Step 3: passing the fiber bundle through a 20wt% silk fibroin solution bath, so that the fiber surface is wrapped with the silk fibroin solution. Use a thread collector with a middle hole of 50um and a roundness tolerance of 0.1um to control the amount of silk fibroin coating.

[0085] The silk fibroin solution is prepared using common methods:

[0086] The silk fibroin solution is prepared by degumming, dissolving, dialysis and other processes, using lithium bromide (9.3M) solution system.

[0087] (1) Degumming process

...

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Abstract

The invention discloses a preparation method for a controllable and even silver nanowire electric conduction fibroin fiber bundle. The preparation method comprises the following step: reeling a plurality of fibers from a silkworm cocoon, and fully degumming; combining the fibers into one fiber bundle through a first thread collector, and winding through a winding device; enabling the fiber bundleto pass through a fibroin solution bath to coat the surface of the fiber bundle with fibroin solution, and using the thread collector to control the coating amount of the fibroin solution; enabling the fiber bundle to pass through a heating ring; enabling the fiber bundle to pass through silver nanowire solution, and using the thread collector to control the coating amount of the silver nanowire solution; enabling the fiber bundle to pass through the heating ring to obtain the silver nanowire electric conduction fibroin fiber bundle; and winding to collect the silver nanowire electric conduction fibroin fiber bundle. According to the preparation method, silk is taken as a basic material, and the surface of the silk is coated with one layer of silver nanowire to prepare the electric conduction silk which combines the advantages of translucency, mechanical property, surface evenness, biocompatibility, biodegradability, chemical stability, flexibility and electric conduction.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a method for preparing a controllable and uniform silver nanowire conductive silk fiber bundle. Background technique [0002] As wearable devices gradually become a popular trend, it has changed the way we live. Primary wearable devices are portable and micro-devices that can be directly worn on the body, or integrated into clothes, accessories or decorations. They are connected to the media, network or terminal, and record all the information about our basic necessities, food, housing and transportation, and communicate with the terminal through the terminal. We give feedback. These devices will bring great changes to our future life. In the future, advanced wearable devices are micro devices that can be directly implanted into the human body. They directly collect the demand data of our human body, and then transmit the feedback information to us through the network, or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/15D01B7/04D01C3/02D06M101/10
CPCD01B7/04D01C3/02D06M11/83D06M15/15D06M2101/10
Inventor 祁宁
Owner SUZHOU UNIV
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