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A kind of high-efficiency antibacterial ABS plastic and preparation method thereof

An antibacterial material, ABS resin technology, applied in the field of antibacterial plastics, can solve the problems of organic molecules easily spilling antibacterial ability, reducing the mechanical properties of plastic products, and easy agglomeration, etc., to achieve a larger space structure for chain segment growth, improve sterilization efficiency, and disperse uniform effect

Active Publication Date: 2021-07-30
MITSUBISHI ELECTRIC CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are mainly two kinds of antibacterial agents in plastic products. One is organic antibacterial agents such as thiazole and quaternary ammonium salt. These antibacterial agents have strong antibacterial ability, but organic molecules are easy to overflow in plastic products, so the antibacterial ability gradually weakens.
Another antibacterial agent is an inorganic nano-antibacterial agent represented by nano-silver. This antibacterial agent has a long antibacterial period, but it is easy to agglomerate when added to plastic products, thereby reducing the mechanical properties of plastic products.

Method used

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  • A kind of high-efficiency antibacterial ABS plastic and preparation method thereof

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preparation example Construction

[0081] The preparation method of antibacterial material of the present invention is the method for making above-mentioned antibacterial material of the present invention, comprises the following steps:

[0082] (1) In the presence of a reactant, a silane coupling agent is used to pretreat the silver-loaded antibacterial agent irradiated by ultraviolet rays with a wavelength of 180 to 330 nm to obtain a pretreated antibacterial agent;

[0083](2) mixing the above-mentioned pretreated antibacterial agent with ABS resin and other auxiliary agents to obtain a mixed raw material;

[0084] (3) Extruding and granulating the dry blend to obtain antibacterial masterbatch;

[0085] (4) After the obtained antibacterial masterbatch is pressed into a thin sheet, it is thermally bonded with a pure ABS plate to obtain an antibacterial ABS composite material.

[0086] An example of the production method of the antibacterial material of the present invention will be described in detail below,...

Embodiment 1

[0101] The antibacterial material of Example 1 is prepared from the following components in parts by weight, 120 parts of ABS resin, 4 parts of silver-loaded antibacterial agent, 1.5 parts of γ-aminopropyltriethoxysilane, 10 parts of tetrahydrofuran, and 1 part of HAC , 0.5 parts of diffusing oil, 3 parts of ABS-g-MAH, 0.5 parts of antioxidant mixed with antioxidant 1076 and antioxidant 1010.

[0102] The preparation method of this antibacterial material comprises the following steps:

[0103] (1) Place the silver-loaded antibacterial agent on a clean mirror surface and spread it evenly, irradiate with ultraviolet light for 0.5h, and the irradiation distance is 40mm. After the irradiation is completed, add 4 parts of antibacterial agent to 10 parts of tetrahydrofuran solution containing 1.5 parts of γ-aminopropyltriethoxysilane, add HAC to adjust the pH value to 3.5, stir ultrasonically for 30 minutes, heat to 60 °C and then water bath After reacting for 2 hours, the obtained...

Embodiment 2

[0110] The antibacterial material of Example 2 is prepared from the following components in parts by weight, 130 parts of ABS resin, 6 parts of silver-loaded antibacterial agent, 2.5 parts of γ-aminopropyltriethoxysilane, 15 parts of tetrahydrofuran, and 2 parts of HAC , 0.6 parts of diffusing oil, 4 parts of ABS-g-MAH, 0.8 parts of antioxidant mixed with antioxidant 1076 and antioxidant 1010.

[0111] The preparation method of this antibacterial material comprises the following steps:

[0112] (1) Place the silver-loaded antibacterial agent on a clean mirror surface and spread it evenly, irradiate with ultraviolet light for 0.5h, and the irradiation distance is 40mm. After the irradiation is completed, add 6 parts of antibacterial agent to 15 parts of tetrahydrofuran solution containing 2.5 parts of γ-aminopropyltriethoxysilane, add HAC to adjust the pH value to 4.5, stir ultrasonically for 30 minutes, heat to 60°C and then water bath After reacting for 2 hours, the obtained...

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Abstract

An antibacterial composite material is prepared from the following components in parts by weight: 120-140 parts of ABS resin, 4-10 parts of silver-carrying antibacterial agent, 1-5 parts of silane coupling agent, and 1-3 parts of reactant, 4-10 parts of other additives such as diffusion oil, compatibilizer and antioxidant. The antibacterial material is mainly pretreated with an antibacterial agent to prepare an antibacterial masterbatch and then prepared by a lamination method. First, KH550 is dissolved in organic solvent, decomposed under the action of HAC, and then combined with the carrier of silver-loaded antibacterial agent to obtain the pretreated antibacterial agent, and then the antibacterial agent, ABS, compatibilizer and other auxiliary agents such as antioxidant and diffusion oil are added. The ingredients are mixed together evenly and then melted and extruded in a twin-screw extruder to obtain an extruded material, and the extruded material is cooled and pelletized to obtain an antibacterial masterbatch. Finally, the antibacterial composite material was prepared by lamination method. The antibacterial plastic of the invention has strong antibacterial performance, long antibacterial validity period, and has obvious bacteriostatic effect on Staphylococcus aureus and Escherichia coli. It has the advantages of easy processing, high antibacterial, and excellent mechanical properties.

Description

technical field [0001] The invention relates to an antibacterial plastic, in particular to a high-efficiency antibacterial ABS plastic and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene copolymer is a terpolymer composed of acrylonitrile, butadiene and styrene. The English name is Acrylonitrile le-Butadiene-Styrenecopolymer, referred to as ABS. Usually pale yellow or milky white granular non-crystalline resin. ABS resin has excellent impact resistance, heat resistance, low temperature resistance, chemical resistance and electrical properties. It has the characteristics of easy processing, stable product size and good surface gloss. It is easy to paint and color, and can also be sprayed on the surface Secondary processing such as metal plating, electroplating, welding, hot pressing, and bonding are widely used in industrial fields such as machinery, automobiles, electronic appliances, instrumentation, textiles, and construction. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/30B32B27/06B32B27/18B32B27/24B32B33/00C08L55/02C08L83/04C08K9/12C08K9/06C08K9/00C08K3/08C08J5/12B29D7/01
CPCB29D7/01B32B27/08B32B27/18B32B27/24B32B27/302B32B33/00B32B2250/24B32B2307/7145C08J5/121C08J2355/02C08J2455/02C08J2483/04C08K2003/0806C08L55/02C08L2205/025C08L2205/03C08L83/04C08K9/12C08K9/06C08K9/00C08K3/08
Inventor 邱虹华汪济奎张世平丁伟杰张治斌
Owner MITSUBISHI ELECTRIC CHINA CO LTD
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