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Preparation method and product of zinc oxide nanorod matrix modified silk

A zinc oxide nanorod and silk technology, applied in the field of materials, can solve the problems of difficult to withstand the temperature of ZnO nanorods, no modification of silk, etc., and achieve the effects of large application value, low energy consumption, and miniaturization.

Active Publication Date: 2014-07-02
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of natural protein fibers of silk, it is difficult to withstand the high temperature during the synthesis of ZnO nanorod matrix, so there are no reports of zinc oxide nanorod matrix modified silk.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method and product of zinc oxide nanorod matrix modified silk
  • Preparation method and product of zinc oxide nanorod matrix modified silk
  • Preparation method and product of zinc oxide nanorod matrix modified silk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method for zinc oxide nanorod matrix modified silk, comprising the steps of:

[0032] (1) Silk degumming: Take the silk and place it in NaCO with a concentration of 0.05g / L 3 Boil in the solution for 0.5-1 hour, wash twice with deionized water, repeat with NaCO 3 Boiling the solution and washing with deionized water twice, and then drying at room temperature (18-25°C) to obtain degummed silk;

[0033] (2) Put the degummed silk obtained in step (1) in 20 mL of newly prepared KMnO with a concentration of 5 mM 4 Soak in the solution for 20min, then rinse with deionized water 2-3 times;

[0034] (3) Put the silk treated in step (2) into the 3 ) 2 ·6H 2 In a solution of O and ammonia water, heat in a water bath at 50-100°C for 1 hour, and then dry at room temperature (18-25°C) to obtain zinc oxide nanorod matrix-modified silk, which contains Zn(NO 3 ) 2 ·6H 2 The solution of O and ammonia water is Zn(NO 3 ) 2 ·6H 2 O and the mass percentage are 28% a...

Embodiment 2

[0039] A method for preparing a sensor by modifying silk with a zinc oxide nanorod matrix, the specific method is:

[0040] (1) Decorate the silk with zinc oxide nanorod matrix, cover one end of the silk with aluminum foil, and then sputter and spray gold under magnetron for 2-3 minutes;

[0041] (2) Connect the gold-sprayed silk in step (1) with a wire, and then fix it on a flexible substrate (3.5cm×2.5cm) with silver glue. The thickness of the flexible substrate is 1mm to obtain a zinc oxide nanorod matrix-modified silk sensor , with a structure such as image 3 shown.

[0042] When preparing the above sensor, the size range of the flexible base is 3-4 cm×2-3 cm, and the thickness of the flexible base is 1-3 mm.

[0043] Depend on image 3 It can be seen that the sensor structure of ZnO nanorod matrix-modified silk includes zinc oxide nanorod matrix-modified silk with gold sprayed on one end, wires and flexible substrates. The glue is fixed on the flexible substrate. Th...

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Abstract

The invention discloses a preparation method and a product of zinc oxide nanorod matrix modified silk. The preparation method of the zinc oxide nanorod matrix modified silk comprises the steps of degumming the silk, soaking the degummed silk in KMnO4 solution, washing by water, putting the silk soaked in the KMnO4 solution in the solution containing Zn(NO3)2.6H2O and ammonium hydroxide, heating in a water bath at 50-100 DEG C, and drying at 18-25 DEG C to obtain the zinc oxide nanorod matrix modified silk. The method is simple and the raw materials are low in cost; the surface of the silk is compactly wrapped by zinc oxide nanorods in sequence and the mechanical energy can be converted into electric energy, so that the silk can be used for preparing sensors; the silk is high in sensitivity and has response to knock, pressing, bending, breath and heartbeat, so that the silk has large application prospect in the wearable technology.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a preparation method of zinc oxide nanorod matrix modified silk and a product prepared by the method, and also relates to a sensor prepared by using the product. Background technique [0002] Silk is a kind of pure natural protein fiber. Its silk is soft, smooth and elastic, and it is known as the "Fiber Queen". Silk has the characteristics of "warm in winter and cool in summer". Its structure is very close to that of human skin. It is smooth, breathable, soft, moisture-absorbing, non-itchy and anti-static. It has health care effects on the human body and is a green product respected by the world. , making it an excellent fabric for intimate apparel. When wearing these clothes made of silk, if the real-time monitoring of the physiological data of the human body can be realized, it will play an important role in the development of wearable technology. [0003] Wearable technology is an ...

Claims

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Application Information

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IPC IPC(8): D06M11/44D01C3/00D01C3/02A61B5/00D06M101/12
Inventor 鲁志松孟梅李长明
Owner SOUTHWEST UNIVERSITY