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Antibacterial conductive polystyrene (PS) composite material and preparation method thereof

A composite material and antibacterial agent technology, applied in the field of antibacterial conductive PS composite materials and their preparation, can solve the problems of limiting the application range of PS composite materials, general antibacterial properties and electrical conductivity, etc., to improve surface structure and performance, and improve interface performance. , the effect of improving interface performance

Inactive Publication Date: 2017-08-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the comprehensive properties of PS are excellent, the antibacterial and conductive properties of PS are average, which greatly limits the application range of PS composite materials.
[0003] How to improve the antibacterial and conductive properties of PS has always been a topic in this field, but PS composite materials with high antibacterial and conductive properties have not been reported.

Method used

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  • Antibacterial conductive polystyrene (PS) composite material and preparation method thereof
  • Antibacterial conductive polystyrene (PS) composite material and preparation method thereof
  • Antibacterial conductive polystyrene (PS) composite material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0055] The preparation method of antibacterial agent is as follows:

[0056] (1) Take a certain amount of absolute ethanol, deionized water and nitric acid to be mixed with solution B; the mass ratio of absolute ethanol, deionized water and nitric acid is (120-160): (200-480): (60- 120).

[0057] (2) Weigh a certain amount of butyl titanate, absolute ethanol, and acetic acid, slowly drop butyl titanate into the mixed solution of absolute ethanol and acetic acid under rapid stirring, and prepare solution C; The mass ratio of ester, absolute ethanol and acetic acid is (20-60):(60-90):(120-160).

[0058] (3) Drop solution B into solution C to obtain a uniform and transparent sol; the mass ratio of solution B to solution C is (120-160): (40-60).

[0059] (4) Slowly add AgNO to the sol 3 Solution, after continuing to stir for 4-6h, a light yellow opaque gel was obtained.

[0060] (5) The gel is vacuum-dried at 60-80° C. for 8-10 hours, and the obtained dry gel is then put into a ...

Embodiment 1

[0069] (1) Take by weighing 80 parts of PS, 16 parts of bamboo fiber, 12 parts of carbon black, 6 parts of antibacterial agent, 0.1 part of Irganox168, 0.1 part of zinc stearate and mix and stir evenly to obtain a mixture;

[0070] (2) Extruding and granulating the mixture obtained in the step (1) to obtain PS composite material P1.

[0071] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 150°C, the temperature of the second zone is 200°C, the temperature of the third zone is 200°C, the temperature of the fourth zone is 200°C, the temperature of the fifth zone is 200°C, and the temperature of the sixth zone is 200°C. The head temperature is 200°C, and the screw speed is 200r / min.

Embodiment 2

[0073] (1) Weigh 100 parts of PS, 20 parts of bamboo fiber, 16 parts of carbon black, 8 parts of antibacterial agent, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.2 part of Irganox1330, 0.15 part of sodium stearate, 0.15 part of zinc stearate and mix and stir evenly to obtain a mixture;

[0074] (2) Extruding and granulating the mixture obtained in step (1) to obtain PS composite material P2.

[0075] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 170°C, the temperature of the second zone is 240°C, the temperature of the third zone is 240°C, the temperature of the fourth zone is 240°C, the temperature of the fifth zone is 240°C, and the temperature of the sixth zone is 240°C. The head temperature is 240°C, and the screw speed is 280r / min.

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Abstract

The invention relates to an antibacterial conductive polystyrene (PS) composite material and a preparation method thereof. The PS composite material is prepared from the following ingredients in parts by weight: 80 to 100 parts of PS, 16 to 20 parts of bamboo fiber, 12 to 16 parts of carbon black, 6 to 8 parts of antibacterial agent, 0.1 to 0.5 part of antioxidant and 0.1 to 0.3 part of lubricant. Alkali treatment on the bamboo fiber mainly has two effects: 1) impurities of hemicelluloses, lignin and the like on the surface of the bamboo fiber can be removed; 2) as the impurities on the surface of the bamboo fiber are removed, a surface structure and performance of the bamboo fiber are improved, and bamboo fiber / PS interface performance is improved; a silane coupling agent can effectively reduce polarity on the surface of the bamboo fiber and can further improve the bamboo fiber / PS interface performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antibacterial conductive PS composite material and a preparation method thereof. Background technique [0002] Polystyrene (PS) has the advantages of light weight, non-toxic, odorless, good chemical stability, insoluble in common solvents at room temperature, and low water absorption. Although the comprehensive properties of PS are excellent, the antibacterial and conductive properties of PS are average, which greatly limits the application range of PS composite materials. [0003] How to improve the antibacterial and conductive properties of PS has always been a topic in this field, but PS composite materials with high antibacterial and conductive properties have not been reported. Contents of the invention [0004] The object of the present invention is to provide an antibacterial conductive PS composite material and a preparation method thereof, so as to improv...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L97/02C08K13/02C08K3/22C08K3/00C08K3/04B29C47/92B29B9/06B29C48/92
CPCC08L25/06B29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2003/2241C08K2201/001C08L2205/16C08L97/02C08K13/02C08K3/04C08K3/22C08K3/015
Inventor 刘凯徐志海孙启林王添琪
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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