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A preparation method of polyaniline-coated silver-loaded nano-microcrystalline cellulose-based conductive ink

A nano-microcrystalline, cellulose-based technology, applied in inks, household utensils, applications, etc., can solve the problems of easy cracking of nano-silver, and achieve the effect of improving process and formula, improving adhesion, and improving dispersibility

Active Publication Date: 2022-03-01
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This advantage is a condition that many metal materials such as copper do not have, but nano-silver is easy to crack during sintering

Method used

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  • A preparation method of polyaniline-coated silver-loaded nano-microcrystalline cellulose-based conductive ink
  • A preparation method of polyaniline-coated silver-loaded nano-microcrystalline cellulose-based conductive ink
  • A preparation method of polyaniline-coated silver-loaded nano-microcrystalline cellulose-based conductive ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1: A method of preparing a polyaniline wrapped silver nano-microcrystalline cellulose base conductive ink, method principle figure 1 The show is performed as follows:

[0047] A, 48 ml of concentration of 0.3% nano-microcrystalline cellulose solution is ultrasonic to obtain a nano-microcrystalline cellulose suspension solution; the nano-microcrystalline cellulose suspension solution is added to the solution of a concentration of 0.1% nitrate solution, ultrasonic dispersion Stir in 5 minutes to mix evenly;

[0048] B. The mixture is slowly added to the mixed liquid, the sodium borohydride solution is slowly added, stirred for 5 minutes, using an electric agitator to mix uniform, to obtain a silver nano microcrystalline cellulose mixture; then at a speed of 10,000 rpm When centrifugation was 10 min, the obtained precipitate was added to deionized water for 30 min washing, repeating the above process multiple times until the upper cleaner figure 2 The white, then takin...

Embodiment 2

[0052] Example 2: A method for preparing polyaniline wrapped silver nano-microcrystalline cellulosic conductive ink, and performed as follows:

[0053] A, 58 ml of concentration of 0.5% nano-microcrystalline cellulose solution is ultrasonic to obtain a nano-microcrystalline cellulose suspension solution; the nano-microcrystalline cellulose suspension solution is added to silver nitrate solution, ultrasonic dispersion Stir in 5 minutes to mix evenly;

[0054] B. Slowly adding a 25 ml concentration of 0.1% a sodium borohydride solution to the mixture, stirred for 5 minutes, and mixed with an electric agitator to mix, obtain a silver nanocrystalline cellulose mixture; again at 10,000 rpm Under the centrifugation of 10 min, the obtained precipitate was added to deionized water for 30 min washing, and the above process was repeated, and the upper tank was repeated, and then the washed precipitate obtained the silver nanocrystalline cellulose base conductive particles;

[0055] C. Furth...

Embodiment 3

[0058] Example 3: A method of preparing a polyaniline wrapped silver nanocrystalline cellulose base conductive ink, and performed as follows:

[0059] A, 50 ml of concentration of 0.4% nano-microcrystalline cellulose solution is ultrasonic to obtain a nano-microcrystalline cellulose suspension solution; the nano-microcrystalline cellulose suspension solution is added to a silver nitrate solution of 0.15%, ultrasonic dispersion. Stir in 5 minutes to mix evenly;

[0060] B. Slowly adding 25 ml of a concentration of 0.08% a sodium borohydride solution to the mixture, stirred for 5 minutes, using an electric agitator to mix well, to obtain a silver nanocrystalline cellulose mixture; again at 10,000 rpm Under the centrifugation of 10 min, the obtained precipitate was added to deionized water for 30 min washing, and the above process was repeated, and the upper tank was repeated, and then the washed precipitate obtained the silver nanocrystalline cellulose base conductive particles;

[...

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Abstract

The invention discloses a method for preparing polyaniline-wrapped silver-loaded nano-microcrystalline cellulose-based conductive ink. The invention adds silver nitrate solution and sodium borohydride to the nano-microcrystalline cellulose solution and then modifies it to obtain a silver-loaded nano-microcrystalline cellulose-based conductive ink. Silver nano-microcrystalline cellulose-based conductive particles; and then preparing polyaniline-wrapped silver-loaded nano-microcrystalline cellulose-based conductive ink based on the silver-loaded nano-microcrystalline cellulose-based conductive particles, which can greatly improve the performance of the conductive ink. The invention provides a novel silver conductive ink, which has good chemical stability, is not easy to be oxidized, improves the electrical performance of the silver conductive ink, and reduces production cost.

Description

Technical field [0001] The present invention relates to a method of preparing a polyaniline wrapped silver nano-microcrystalline cellulose base conductive ink, belonging to the field of conductive material. Background technique [0002] In recent years, with the intensification of environmental issues, renewable resources have become the inevitable choice of people. Cellulose is the most abundant carbohydrate on earth, which is a natural polymer material synthesized by photosynthesis, and is widely used in plants, animals and bacteria, so that they have focused on researchers. The nano-microcrystalline cellulose not only has the characteristics of cellulose, but also has other characteristics through a series of modifications. About the study of nano-microcrystalline cellulose is also very much, the preparation, modification of nanocrystalline cellulose, and the study of nano-microcrystalline cellulose is gradually ripe. As a hot spot in the scientific research in the 21st centur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52C09D11/14C09D11/03C08G73/02
CPCC09D11/52C09D11/14C09D11/03C08G73/0266
Inventor 郭大亮刘蓓沙力争童树华马海珠李娜娜
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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