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Nano-copper powder and application thereof to preparation of antibacterial and mildew-proof carpet

A technology of nano-copper powder and nano-copper, which is applied in the direction of nanotechnology, nanotechnology, chemicals for biological control, etc., can solve problems such as the impact on human health, achieve good industrial prospects, simple preparation methods, and good dispersibility Effect

Active 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

At present, there is a lack of products to deal with harmful factors such as bacteria and mold in the household products used, which have potential impact on human health

Method used

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  • Nano-copper powder and application thereof to preparation of antibacterial and mildew-proof carpet
  • Nano-copper powder and application thereof to preparation of antibacterial and mildew-proof carpet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Take 17.05g of copper chloride dihydrate and 0.1g of gum arabic and add them to 50ml of deionized water to obtain a uniformly mixed copper chloride aqueous solution.

[0028] Step 2: Add ammonia water dropwise to adjust the pH value of the above solution to about 9.0, and then add the mixed solution into an airtight container.

[0029] Step 3: Take 10ml of hydrogen-rich water and add it to the above solution, then raise the temperature to 95°C, and reflux for 4 hours under the action of ultrasound (ultrasonic power is 100W, ultrasonic frequency is 40kH). place.

[0030] Step 4: After standing still, the reaction 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 12 hours to obtain nano-copper powder , its SEM image is shown in figure 1 shown.

[0031] Step 5: Take 10g of nano-copper powder and 40g of PET slices, melt, mix and extru...

Embodiment 2

[0035] Step 1: Take 8.50g of copper chloride dihydrate and 0.08g of sodium lignosulfonate and add them into 40ml of deionized water to obtain a uniformly mixed aqueous solution of copper chloride.

[0036] Step 2: Add ammonium bicarbonate solution dropwise to adjust the pH value of the above solution to about 9.5, and then add the mixed solution into a closed container.

[0037] Step 3: Take 0.5g vitamin C and add it to the above solution, then raise the temperature to 80°C, under the action of ultrasound (ultrasonic power 100W, ultrasonic frequency 40kH) reflux reaction for 6 hours, cool to room temperature after the reaction place.

[0038] Step 4: After standing still, the reaction solution is centrifuged through a high-speed centrifuge (8000 rpm) and washed 3 times with deionized water, and then the nano-copper slurry is dried by a freeze dryer (-60°C) for 12 hours to obtain nano-copper powder .

[0039] Step 5: Take 10g of nano-copper powder and 40g of PET slices, melt,...

Embodiment 3

[0043] Step 1: Take 30g of copper chloride dihydrate and 0.3g of sodium polymethacrylate and add them into 100ml of deionized water to obtain a uniformly mixed aqueous solution of copper chloride.

[0044] Step 2: Add ammonia solution dropwise to adjust the pH value of the above solution to about 10.0, and then add the mixed solution into an airtight container.

[0045] Step 3: Take 5.0g of glutathione and add it to the above solution, then increase the temperature to 70°C, reflux for 8 hours under the action of ultrasound (ultrasonic power is 100W, ultrasonic frequency is 40kH), and cool to Let stand at room temperature.

[0046] Step 4: After standing still, the reaction solution is centrifuged through a high-speed centrifuge (9000rpm) and washed 3 times with deionized water, and then the nano-copper slurry is dried by a freeze dryer (-70°C) for 18 hours to obtain nano-copper powder .

[0047] Step 5: Take 10g of nano-copper powder and 40g of PET slices, melt, mix and extr...

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Abstract

The invention discloses nano-copper powder. The particle size of the nano-copper powder is 100-150 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 the nano-copper powder with the excellent antibacterial performance is prepared by adopting agreen and environment-friendly method. The method is carried out in a water phase, the copper salt is reduced by adopting the ultrasonic-assisted green reducing agent to obtain the nano-copper powder, and the nano-copper powder is in a nano-cluster shape, has good dispersity and can be effectively dispersed in various polymers such as PET, PP and PE. The invention further discloses application ofthe nano-copper powder to preparation of an antibacterial and mildew-proof carpet.

Description

technical field [0001] The invention relates to a nano-copper powder, and furthermore, the invention also relates to the use of the nano-copper powder in preparing antibacterial and mildew-proof carpets. Background technique [0002] Due to its ultra-fine size and structure, excellent electrical and thermal conductivity, and huge specific surface area, nano-copper has very broad application prospects in many fields such as catalysis, electrical conductivity, cytotoxicity, and antibacterial. At the same time, nano-copper has very excellent antibacterial properties and is harmless to the human body, so it can be used as a good antibacterial agent in antibacterial disinfectants, sports shoes and socks and other industries, especially in household products. It has a good application prospect. [0003] At present, the preparation methods of nano copper powder include electrolysis method, gas phase evaporation method, supercritical extraction method, microemulsion method, microwav...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/24B82Y30/00B82Y40/00D01F1/10A01N59/20A01P1/00A01P3/00
CPCB22F9/24B82Y30/00B82Y40/00D01F1/103A01N59/20B22F1/054Y02A50/30
Inventor 李佳怡胡呈元
Owner 上海沪正实业有限公司
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