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An antibacterial polycarbonate material and a preparing method thereof

A technology of polycarbonate and antibacterial agent, applied in the field of antibacterial polycarbonate material and its preparation, can solve the problems of poor antibacterial performance, low shrinkage and rigidity, etc., and achieve the effect of excellent antibacterial property, high rigidity and improved antibacterial property

Inactive Publication Date: 2017-04-19
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of poor antibacterial properties of existing materials, the purpose of the present invention is to provide an antibacterial polycarbonate material, which has the advantages of durable antibacterial properties, low shrinkage, high rigidity, and good toughness.

Method used

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  • An antibacterial polycarbonate material and a preparing method thereof
  • An antibacterial polycarbonate material and a preparing method thereof
  • An antibacterial polycarbonate material and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 100 parts of PC resin, 5 parts of toughening agent MBS, 1 part of Ag 1+ Silicate, 0.4 part of dispersant PE wax and 0.4 part of antioxidant (antioxidant 1076 / antioxidant 168=1 / 2), add to high mixer and mix at high speed, control the speed of high mixer to be 500rmp, mix The temperature is 80°C, mix for 3 minutes and mix well;

[0026] Put the mixed material and 10 parts of glass fiber into the twin-screw extruder to extrude and granulate, and control the temperature of each zone (from the feed port to the die head of the extruder) to 220°C, 230°C, 240°C, 255°C, and 265°C , The antibacterial polycarbonate material is obtained by extruding strands and pelletizing.

[0027] The above product was dried at 85° C. for 5 hours in a blast oven and then injection molded with an injection molding machine, and the injection molding temperature was 265° C. The injection-molded strips were placed at 50% relative humidity at 23°C for 24 hours before performing a performance test. T...

Embodiment 2

[0029] With 100 parts of PC resin, 3 parts of toughening agent EMA-GMA, 0.7 part of antibacterial agent (polyhexamethylene guanidine phosphate / nanometer silver oxide=2 / 1), 0.6 part of dispersant PETS and 0.6 part of antioxidant ( Antioxidant 1010 / antioxidant 168=1 / 2), added to the high-speed mixer and mixed at high speed, controlled the speed of the high-mixer to 700rmp, the mixing temperature was 40°C, and mixed for 3 minutes to mix evenly;

[0030] Put the mixed material and 20 parts of glass fiber into the twin-screw extruder to extrude and granulate, and control the temperature of each zone (from the feed port to the die head of the extruder) to 220°C, 230°C, 240°C, 250°C, and 260°C , The antibacterial polycarbonate material is obtained by extruding strands and pelletizing.

[0031] The above product was dried at 85° C. for 5 hours in a blast oven and then injection molded with an injection molding machine, and the injection molding temperature was 265° C. The injection-m...

Embodiment 3

[0033] With 100 parts of PC resin, 10 parts of toughening agent LLDPE-g-MAH, 2 parts of nano titanium dioxide, 1.0 parts of dispersant EBS and 1.2 parts of antioxidant (antioxidant 1010 / antioxidant 168=2 / 3), add Go to the high-speed mixer for high-speed mixing, control the speed of the high-speed mixer to 600rmp, the mixing temperature to 60°C, and mix for 10 minutes to mix evenly;

[0034] Put the mixed material and 50 parts of glass fiber into the twin-screw extruder to extrude and granulate, and control the temperature of each zone (from the feed port to the die head of the extruder) to 230°C, 245°C, 250°C, 265°C, and 255°C , The antibacterial polycarbonate material is obtained by extruding strands and pelletizing.

[0035] The above product was dried at 85° C. for 5 hours in a blast oven and then injection molded with an injection molding machine, and the injection molding temperature was 265° C. The injection-molded strips were placed at 50% relative humidity at 23°C for...

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Abstract

An antibacterial polycarbonate material is disclosed. The material is prepared from, by weight, 100 parts of PC resin, 10-50 parts of glass fibers, 3-15 parts of a flexibilizer, 0.7-2.0 parts of an antibacterial agent, 0.4-1.0 part of a dispersant and 0.4-1.2 parts of an antioxidant. A preparing method of the antibacterial polycarbonate material is also disclosed. The method includes weighing 100 parts of the PC resin, 3-15 parts of the flexibilizer, 0.7-2.0 parts of the antibacterial agent, 0.4-1.0 part of the dispersant and 0.4-1.2 parts of the antioxidant, fully mixing the materials, adding the obtained material mixture and 10-50 parts of the glass fibers into a screw extruder, performing extrusion and granulation, and drawing and dicing the product by the screw extruder to obtain the material. The material has advantages of durable antibacterial performance, a low percentage of contraction, high rigidity, good toughness, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antibacterial polycarbonate material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is widely used in various fields of social life such as electronic appliances, building materials, packaging, and automobile industry because of its excellent physical and mechanical properties, high impact strength, good electrical properties, and good dimensional stability. It is used to manufacture product casings such as electrical switch panels, toy casings, mobile phone casings, etc. It is currently one of the polymers with the largest output and widest application. [0003] However, the shell parts of the product are exposed to a variety of external environments. Long-term use tends to accumulate a large number of germs and form a source of pollution. It has been reported that the number of bacteria per square centimeter on a mobi...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L23/08C08L51/06C08L33/12C08L23/06C08L83/04C08K13/04C08K7/14C08K3/22C08K3/34C08K5/134C08K5/526B29C47/92B29C48/92
Inventor 杨桂生赵敏李兰杰
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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