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Antibacterial polystyrene plastic and preparation method thereof

A technology of polystyrene plastic and polystyrene, applied in the direction of coating, etc., can solve the problems of increasing cost, inability to guarantee antibacterial effect, reducing rigidity, etc., to enhance toughness and impact resistance, prevent agglomeration, improve light The effect of stability

Inactive Publication Date: 2018-03-13
SHENYANG SHUNFENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantage is that it improves the toughness and stress cracking resistance of polystyrene; the disadvantage is that it reduces rigidity, increases cost, and cannot guarantee a truly effective antibacterial effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 78 parts of polystyrene, 4.5 parts of propylene glycol methyl ether, 2 parts of silver ion antibacterial agent (purity 90-95%), 0.6 part of nano-titanium dioxide particles (particle size range 20-60nm), thickening 13 parts carboxymethyl cellulose, 6.5 parts ethylene bis stearamide release agent, 2 parts diphenylamine antioxidant, 6 parts zirconate coupling agent, 4 parts xylylenediamine trimer derivatives curing agent Add 0.6 parts of antifungal agent p-chloro-m-xylenol and mix evenly in a high-pressure homogenizer. The mixing temperature is 80-100°C and the pressure is 18-20Mpa; put the mixed material into the feeding port of the twin-screw extruder , melt extrusion, granulation, the temperature of the first zone is 180-200°C, the temperature of the second zone is 200-220°C, the temperature of the third zone is 220-240°C, and the temperature of the fourth zone is 230-240°C; the polymer molding method is adopted, Prepare the above-mentioned pellets into a material...

Embodiment 2

[0027] Weigh 80 parts of polystyrene, 5 parts of propylene glycol methyl ether, 2 parts of silver ion antibacterial agent (purity 90-95%), 0.8 parts of nano-titanium dioxide particles (particle size range 20-60nm), thickening 14 parts carboxymethyl cellulose, 7 parts ethylene bis stearamide release agent, 2 parts p-phenylenediamine antioxidant, 6 parts zirconate coupling agent, xylylenediamine trimer derivatives curing agent 4 parts and 0.8 parts of antifungal agent p-chloro-m-xylenol, put into a high-pressure homogenizer and mix evenly, the mixing temperature is 80-100°C, and the pressure is 18-20Mpa; the mixed material is added to the twin-screw extruder Feeding port, melt extrusion, granulation, the temperature of the first zone is 180-200°C, the temperature of the second zone is 200-220°C, the temperature of the third zone is 220-240°C, and the temperature of the fourth zone is 230-240°C; polymer molding The method is to prepare the above-mentioned pellets into a material ...

Embodiment 3

[0029] Weigh 82 parts of polystyrene, 5.5 parts of propylene glycol methyl ether, 3 parts of silver ion antibacterial agent (purity 90-95%), 0.9 parts of nano-titanium dioxide particles (particle size range 20-60nm), thickening 14 parts of carboxymethyl cellulose, 7.5 parts of release agent ethylene bis stearamide, 2 parts of antioxidant diphenylamine, 7 parts of coupling agent maleic anhydride grafted polypropylene, 4 parts of curing agent diaminodiphenyl sulfone and antifungal agent p-chloro-m-xylenol 0.9 parts, add to the high-pressure homogenizer and mix evenly, the mixing temperature is 80-100°C, and the pressure is 18-20Mpa; the mixed material is added to the feeding port of the twin-screw extruder , melt extrusion, granulation, the temperature of the first zone is 180-200°C, the temperature of the second zone is 200-220°C, the temperature of the third zone is 220-240°C, and the temperature of the fourth zone is 230-240°C; the polymer molding method is adopted, Prepare t...

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Abstract

The invention belongs to the technical field of polystyrene plastics, and relates to an antibacterial polystyrene plastic and a preparation method thereof. The antibacterial polystyrene plastic of the present invention is prepared from the following raw materials in parts by weight: 78-84 parts of polystyrene, 4-6 parts of propylene glycol methyl ether, and 1-2 parts of silver ion antibacterial agent (purity is 90-95%) 3 parts, 0.5-1 part of nano-titanium dioxide particles (particle size range of 20-60nm), 12-15 parts of thickener, 6-8 parts of release agent, 1-3 parts of antioxidant, 5-8 parts of coupling agent , 3-5 parts of curing agent and 0.5-1 part of antifungal agent; after the material is formed, a titanium dioxide film layer is formed on its surface by plasma sputtering technology. The antibacterial polystyrene plastic of the invention has good mechanical properties, good antibacterial effect and antibacterial durability, and has high impact resistance.

Description

technical field [0001] The invention belongs to the technical field of polystyrene plastics, and relates to an antibacterial polystyrene plastic and a preparation method thereof. Background technique [0002] Microorganisms can spread through various channels and eventually attach to plastic products. People can carry germs through contact with products and spread them to each other, which increases the risk of cross-infection and affects people's health. It is particularly prominent in the fields of medical materials, home appliances and building materials used in polystyrene, and it needs to have strong antibacterial properties to ensure the safety and health of users. Therefore, polystyrene products with good antibacterial properties have very important practical significance for improving people's living environment, reducing the incidence of diseases, and protecting human health. [0003] Polystyrene (PS) refers to a polymer synthesized by free radical addition polymer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L1/28C08L51/06C08K13/02C08K3/22C08K3/015C08K5/06C08K5/20C08K5/10C08J7/04
CPCC08L25/06C08J7/04C08J2325/06C08K2201/003C08K2201/011C08L2205/03
Inventor 刘春峰柴立强周龙
Owner SHENYANG SHUNFENG NEW MATERIAL CO LTD
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