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Antibacterial and antistatic ABS plastic for household appliance shell and preparation method of antibacterial and antistatic ABS plastic

An ABS plastic, anti-static technology, applied in the field of modified plastics, can solve problems such as blocking silver ion release channels

Active Publication Date: 2021-08-20
广州盈邦智能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of this situation, the present invention proposes a kind of antibacterial, antistatic ABS plastics and preparation method that are used for home appliance casing, by wrapping the loaded nano-silver active carbon powder in poly-N-methylpyrrole / chitosan semi-interpenetrating polymer Inside the network, it overcomes the defect that the loaded antibacterial agent is easy to absorb particulate impurities in the air and block the release channel of silver ions, and obtains ABS plastic with good antibacterial and antistatic properties

Method used

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  • Antibacterial and antistatic ABS plastic for household appliance shell and preparation method of antibacterial and antistatic ABS plastic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Add activated carbon powder to 10wt% silver nitrate solution, ultrasonically treat it for 30min, adjust the pH value to 6.5, then add 10wt% ascorbic acid solution dropwise, react in a microwave reactor with 70W power for 8min, filter, wash and dry, Obtain loaded nano-silver activated carbon powder; the mass ratio of activated carbon powder, silver nitrate solution, and ascorbic acid solution is 20:50:20;

[0028](2) Add nano-silver activated carbon powder into deionized water, ultrasonically treat it for 20 minutes, then add chitosan powder, stir well, add glacial acetic acid dropwise to adjust the pH value to 5.5, then add 10wt% glutaraldehyde solution, and heat to React at 70°C for 2 hours to obtain nano-silver activated carbon powder / chitosan hydrogel; the mass ratio of nano-silver activated carbon powder, deionized water, chitosan powder, and glutaraldehyde solution is 4:100:2:4;

[0029] (3) Add N-methylpyrrole and p-toluenesulfonic acid to deionized water, mix...

Embodiment 2

[0033] (1) Add activated carbon powder to 10wt% silver nitrate solution, ultrasonically treat for 50min, adjust the pH value to 6, then add 10wt% ascorbic acid solution dropwise, react in a microwave reactor with 50W power for 10min, filter, wash and dry, Obtain loaded nano-silver activated carbon powder; the mass ratio of activated carbon powder, silver nitrate solution, and ascorbic acid solution is 25:50:25;

[0034] (2) Add nano-silver activated carbon powder into deionized water, ultrasonically treat it for 20 minutes, then add chitosan powder, stir well, add glacial acetic acid dropwise to adjust the pH value to 5, then add 10wt% glutaraldehyde solution, and heat to React at 60°C for 3 hours to obtain nano-silver activated carbon powder / chitosan hydrogel; the mass ratio of nano-silver activated carbon powder, deionized water, chitosan powder, and glutaraldehyde solution is 4.3:100:2.2:4.3;

[0035] (3) Add N-methylpyrrole and p-toluenesulfonic acid to deionized water, mi...

Embodiment 3

[0039] (1) Add activated carbon powder to 10wt% silver nitrate solution, ultrasonically treat it for 40 minutes, adjust the pH value to 6, then add 10wt% ascorbic acid solution dropwise, react in a microwave reactor with 65W power for 8 minutes, filter, wash and dry, Obtain loaded nano-silver activated carbon powder; the mass ratio of activated carbon powder, silver nitrate solution, and ascorbic acid solution is 22:50:22;

[0040] (2) Add nano-silver activated carbon powder into deionized water, ultrasonically treat it for 30 minutes, then add chitosan powder, stir well, add glacial acetic acid dropwise to adjust the pH value to 5, then add 10wt% glutaraldehyde solution, and heat to React at 62°C for 3 hours to obtain nano-silver activated carbon powder / chitosan hydrogel; the mass ratio of nano-silver activated carbon powder, deionized water, chitosan powder, and glutaraldehyde solution is 4.7:100:2.8:2.7;

[0041] (3) Add N-methylpyrrole and p-toluenesulfonic acid into deion...

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Abstract

The invention relates to the technical field of modified plastics, and provides antibacterial and antistatic ABS plastic for a household appliance shell and a preparation method of the antibacterial and antistatic ABS plastic. The ABS plastic is prepared from composite antibacterial aerogel powder, ABS resin, PC resin and an antioxidant through blending, extrusion granulation and injection molding. The composite antibacterial aerogel powder is prepared by the steps of interpenetrating cross-linked chitosan molecular chains and linear poly (N-methylpyrrole) molecular chains to form a semi-interpenetrating polymer network, wrapping nano-silver loaded activated carbon powder in the network structure, and quaternizing poly (N-methylpyrrole). According to the preparation method disclosed by the invention, the defect that silver ions are difficult to release due to the fact that a supported antibacterial agent easily adsorbs particulate impurities in air is overcome, and the ABS plastic with good antibacterial performance and antistatic performance is obtained.

Description

technical field [0001] The invention belongs to the technical field of modified plastics, and provides an antibacterial and antistatic ABS plastic used for home appliance shells and a preparation method. Background technique [0002] ABS (acrylonitrile-butadiene-styrene copolymer) is a terpolymer of acrylonitrile, 1,3-butadiene and styrene. Thermoplastic polymer materials with excellent properties such as good thermal conductivity and good electrical insulation have been widely used in home appliances, automobiles, mechanical parts and other fields. [0003] Although the ABS plastic used as a home appliance shell has its own good comprehensive performance, as people demand for the safety, durability and stability of home appliances, higher requirements are put forward for the performance of ABS plastic. Household appliances will inevitably generate static electricity, and if the static electricity cannot be released in time, it will not only cause harm to the electronic com...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L69/00C08L5/08C08K9/12C08K3/08
CPCC08L55/02C08K2003/0806C08K2201/011C08L2201/04C08L69/00C08L5/08C08K9/12C08K3/08
Inventor 贡吉
Owner 广州盈邦智能技术有限公司