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Nano-copper powder and application thereof to preparation of automobile decorative cloth

A technology of nano-copper powder and bivalent copper, applied in the field of nano-copper powder, can solve the problems of unfavorable large-scale industrial application, complex and tedious preparation conditions, restricting application prospects, etc., and achieves good sterilization effect, easy industrialization, and low cost. Effect

Pending Publication Date: 2021-02-02
上海沪正实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation conditions that these methods have are comparatively complex and loaded down with trivial details (as publication number CN108517541A), are unfavorable for the large-scale industrial application of this method
Some methods are to carry out reduction (as publication number CN18033352A) with multiple reducing agents, which makes the process complicated and increases the cost, greatly restricting the application prospect of the method

Method used

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  • Nano-copper powder and application thereof to preparation of automobile decorative cloth
  • Nano-copper powder and application thereof to preparation of automobile decorative cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Add 17.05g of copper chloride dihydrate to 50ml of deionized water to prepare a 0.5mol / L solution, then add 0.1g of sodium dodecylbenzenesulfonate to dissolve evenly to obtain a mixed solution.

[0024] The second step: the temperature of the above mixed solution is raised to 60° C. and kept at a constant temperature.

[0025] Step 3: Add 0.15 g of hydrazine hydrate dropwise into the above mixed solution, and stir under a high-speed shear (5000 rpm), and apply ultrasonic waves (ultrasonic power 100 W, ultrasonic frequency 40 kH). After the reaction was carried out for 4 hours, the stirring and ultrasonication were stopped, and the mixture was cooled to room temperature and left to stand.

[0026] Step 4: After standing still, the solution is centrifuged through a high-speed centrifuge (10,000 rpm) and washed 3 times with deionized water, and then the nano-copper slurry is dried by a freeze dryer (-80° C.) for 24 hours to obtain nano-copper powder. SEM picture o...

Embodiment 2

[0029] Step 1: Take 1.705g of copper chloride dihydrate and add it to 100ml of deionized water to prepare a 0.1mol / L solution, then add 0.05g of sodium hydroxymethylcellulose to dissolve evenly to obtain a mixed solution.

[0030] Step 2: raise the temperature of the above mixed solution to 80° C. and keep it at a constant temperature.

[0031] Step 3: Add 0.2 g of hydrazine hydrate dropwise into the above mixed solution, and stir under a high-speed shearing machine (5000 rpm), while applying ultrasonic waves (ultrasonic power 100 W, ultrasonic frequency 40 kH). After the reaction was carried out for 10 hours, the stirring and ultrasonication were stopped, and the mixture was cooled to room temperature and allowed to stand.

[0032] Step 4: After standing still, the solution is centrifuged by a high-speed centrifuge (10000 rpm), washed with deionized water for 3 times, and then the nano-copper slurry is dried by a freeze dryer (-80° C.) for 24 hours to obtain nano-copper powde...

Embodiment 3

[0035] Step 1: Add 8.525g of copper chloride dihydrate to 50ml of deionized water to prepare a 0.25mol / L solution, then add 0.05g of sodium dodecylbenzenesulfonate to dissolve evenly to obtain a mixed solution.

[0036] The second step: the temperature of the above mixed solution is raised to 95° C. and kept at a constant temperature.

[0037] Step 3: Add 0.4 g of sodium borohydride dropwise into the above mixed solution, and stir under a high-speed shear (5000 rpm), while applying ultrasonic waves (ultrasonic power 100 W, ultrasonic frequency 40 kH). After the reaction was carried out for 16 hours, the stirring and ultrasonication were stopped, and the mixture was cooled to room temperature and left standing.

[0038] Step 4: After standing still, the solution is centrifuged by a high-speed centrifuge (10000 rpm), washed with deionized water for 3 times, and then the nano-copper slurry is dried by a freeze dryer (-80° C.) for 24 hours to obtain nano-copper powder.

[0039] T...

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Abstract

The invention discloses nano-copper powder. The particle size of the nano-copper powder is 100-200 nm, the copper content is not lower than 98 wt%, raw materials of the nano-copper powder comprise copper chloride, copper sulfate and other copper salt, a reducing agent, a dispersing agent and the like, and a high-speed shearing dispersion assisted ultrasonic reduction method is adopted to reduce the bivalent copper salt into nanoscale elemental copper powder. The nano-copper powder is good in dispersity, prepared nano-copper is in a nano-cluster shape, and good antibacterial and mildew-proof performance and excellent peculiar smell removing capacity are achieved. The invention also discloses application of the nano-copper powder to preparation of automobile decorative cloth. Based on preparation of the nano-copper powder, an automobile interior decorative cloth material with good antibacterial, mildew-proof and deodorizing performance can be obtained through composite processing of thenano-copper powder and polymers.

Description

technical field [0001] The invention relates to a nano-copper powder with antibacterial and anti-mildew properties. In addition, the invention also relates to the use of the nano-copper powder in preparing automotive upholstery. Background technique [0002] Due to its ultra-fine nanoscale structure, excellent electrical conductivity, thermal conductivity, and specific surface area, nano-copper has a very broad application prospect in antibacterial, catalysis, cytotoxicity, and conductive materials. Due to its excellent bactericidal properties and basically harmless to the human body, nano-copper particles can be used in many industries such as antibacterial disinfectants, sports shoes and socks, household products and bedding, especially automotive interior materials etc. Due to the extremely large specific surface area of ​​nano-copper, it has a good effect of absorbing odor and moisture. [0003] At present, the preparation methods of nano copper powder include electroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/24B29C48/40
CPCB22F9/24B29C48/40B22F1/054
Inventor 李佳怡胡呈元
Owner 上海沪正实业有限公司
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