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Antibacterial antistatic PS composite material and preparation method thereof

A composite material and antistatic technology, which is applied in the field of antibacterial and antistatic PS composite materials and its preparation, can solve the problems of unsatisfactory antistatic and antibacterial performance, and achieve the effect of improving antistatic performance and antibacterial performance

Inactive Publication Date: 2019-01-18
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an antibacterial and antistatic PS composite material and its preparation method to solve the problem that the existing PS composite materials cannot meet the needs of certain aspects in terms of antistatic and antibacterial properties

Method used

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  • Antibacterial antistatic PS composite material and preparation method thereof
  • Antibacterial antistatic PS composite material and preparation method thereof
  • Antibacterial antistatic PS composite material and preparation method thereof

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preparation example Construction

[0036] The preparation method of described antibacterial agent, comprises the following steps:

[0037] (1) Weigh a certain amount of hexapraseodymium undecoxide, deionized water, nitric acid, and hydrogen peroxide, add them to the reaction vessel, and react at 30-50°C for 6-8h to form Pr(NO3) 3 ·6H 2 O; the mass ratio of hexapraseodymium undecyl oxide, deionized water, nitric acid, and hydrogen peroxide is (30-40): (200-240): (60-80): (50-70).

[0038] (2) Take a certain amount of sodium o-hydroxyphenylacetate, ethanol, deionized water, 5-chloro-7-hydroxyquinoline, Pr(NO3) 3 ·6H 2 O, react at 60-80°C for 8-12h to obtain solution A; sodium o-hydroxyphenylacetate, ethanol, deionized water, 5-chloro-7-hydroxyquinoline, Pr(NO3) 3 ·6H 2 The mass ratio of O is (20-30):(120-160):(180-220):(30-40):(60-80).

[0039] (3) Adjust the pH value of solution A to neutral with nitric acid or sodium hydroxide, wash, filter with suction, dry, grind, and pass through a 500-mesh sieve to obt...

Embodiment 1

[0049] (1) Take 80 parts of PS, 4 parts of antibacterial agents, 4 parts of modified graphene, 0.1 part of Irganox168 and mix and stir evenly to obtain a mixture;

[0050] (2) Extruding and granulating the mixture obtained in the step (1) to obtain PS composite material P1.

[0051] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 160°C, the temperature of the second zone is 210°C, the temperature of the third zone is 210°C, the temperature of the fourth zone is 210°C, the temperature of the fifth zone is 210°C, the temperature of the sixth zone is 210°C, The head temperature is 210°C, and the screw speed is 200r / min.

Embodiment 2

[0053] (1) Weigh 100 parts of PS, 6 parts of antibacterial agent, 8 parts of modified graphene, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.2 part of Irganox1330 and mix and stir evenly to obtain a mixture;

[0054] (2) Extruding and granulating the mixture obtained in step (1) to obtain PS composite material P2.

[0055] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 180°C, the temperature of the second zone is 250°C, the temperature of the third zone is 250°C, the temperature of the fourth zone is 250°C, the temperature of the fifth zone is 250°C, and the temperature of the sixth zone is 250°C. The head temperature is 250°C, and the screw speed is 280r / min.

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Abstract

The invention relates to an antibacterial antistatic PS composite material and a preparation method thereof. The antibacterial antistatic PS composite material is prepared from the following components in parts by weight: 80-100 parts of PS, 4-6 parts of an antibacterial agent, 4-8 parts of modified graphene and 0.1-0.5 part of an antioxidant, wherein the antibacterial agent is a praseodymiumPr ion antibacterial agent. Pr ions have the function of antagonizing intracellular calcium ions, and calcium ions are ions maintaining the normal physiological activities of cells, so that the Pr ions caninterfere with the normal life activities of bacterial cells and cause bacterial death. Through the addition of the special antibacterial agent, the antibacterial property of the PS composite material is enhanced; and through the addition of the modified graphene, the improvement on the antistatic property of the PS composite material is facilitated.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antibacterial and antistatic 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 antistatic properties of PS are average, which greatly limits the application range of PS composite materials. [0003] In view of this reason, this technical scheme innovates to produce a PS composite material with excellent antibacterial performance and antistatic performance, which makes up for the deficiency of the existing PS composite material. This PS material has not been seen in the report so far. has very important practical significance. Contents of the invention [0004] The purpose of t...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08K13/06C08K5/00C08K3/015C08K3/04
CPCC08K3/015C08K3/042C08K5/0058C08K13/06C08L2201/04C08L25/06
Inventor 刘凯孙启林马琼
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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