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Antibacterial PP composite material and preparation method thereof

A technology of composite materials and antibacterial agents, which is applied in the field of antibacterial PP composite materials and its preparation, can solve the problems of insufficient antibacterial performance of PP and achieve the effect of reducing the probability of agglomeration and improving antibacterial properties

Inactive Publication Date: 2019-02-01
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an antibacterial PP composite material and its preparation method to solve the problem that PP cannot meet some specific needs due to insufficient antibacterial properties

Method used

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  • Antibacterial PP composite material and preparation method thereof

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preparation example Construction

[0037] The preparation method of described antibacterial agent, comprises the following steps:

[0038] (1) Weigh a certain amount of glucose and acetic acid solution, add them to the reaction vessel, stir and react for 20-40min at room temperature to form solution A; the mass ratio of glucose and acetic acid solution is (20-30): (140-160 ).

[0039] (2) Take a certain amount of solution A and copper nitrate solution, add them to the reaction vessel, stir and react for 1-3h at normal temperature to obtain solution B; the mass ratio of solution A and copper nitrate solution is (150-170) : (10-20).

[0040] (3) Weigh a certain amount of solution B and sodium borohydride, add them to the reaction vessel in turn, place the reaction vessel in a microwave reactor with a power of 500W, and perform a reduction reaction for 6-8 hours to obtain solution C; solution B , The mass ratio of sodium borohydride is (60-80): (3-5).

[0041] (4) Ultrasonic disperse solution C for 1-3 hours, s...

Embodiment 1

[0052] (1) Weigh 80 parts of PP, 4 parts of antibacterial agent, 0.1 part of Irganox168 and mix and stir evenly to obtain a mixture;

[0053] (2) Extrude and granulate the mixture obtained in step (1) to obtain PP composite material P1.

[0054] Among them, the temperature and screw speed of each zone of the twin-screw extruder are: the temperature of the first zone is 180°C, the temperature of the second zone is 220°C, the temperature of the third zone is 220°C, the temperature of the fourth zone is 220°C, the temperature of the fifth zone is 220°C, the temperature of the sixth zone is 220°C, The head temperature is 220°C, and the screw speed is 200r / min.

Embodiment 2

[0056] (1) Weigh 100 parts of PP, 6 parts of antibacterial agent, 0.1 part of Irganox168, 0.2 part of Irganox1010, 0.2 part of Irganox1330, mix and stir evenly to obtain a mixture;

[0057] (2) Extrude and granulate the mixture obtained in step (1) to obtain PP composite material P2.

[0058] Among them, the temperature and screw speed of each zone of the twin-screw extruder are respectively: the temperature of the first zone is 200°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 PP composite material and a preparation method thereof. The antibacterial PP composite material comprises the following components in parts by weight: 80 parts-100 parts of PP; 4 parts-6 parts of an antibacterial agent; and 0.1 parts-0.5 parts of an antioxidant; The antibacterial agent is the glucose / nano-Cu antibacterial agent, which is characterized in that due to the existence of a hydroxyl group and an amino group in the glucose molecule, a cage molecule having a similar network structure is formed by hydrogen bond, the compact crystal structure isformed to form the steric hindrance effect, and the surfaces of the nano Cu particles are separated to produce the stereoscopic protection effect, the contact between the nano-Cu particles is prevented, the agglomeration probability of the nano-Cu particles is reduced; so that the antibacterial property of the PP composite material can be better improved, which has great significance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antibacterial PP composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) 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 overall performance of PP is excellent, the antibacterial performance of PP is average, which limits the application range of PP composite materials. [0003] In view of this reason, this technical solution innovatively uses a new type of antibacterial agent to improve the antibacterial performance of PP, and finally prepares a PP composite material with excellent antibacterial performance to make up for the shortcomings of existing PP composite materials. This PP material has not yet been produced. Seen in the report, this has very important practical significance for expanding th...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/02C08K5/07C08K3/08C08K5/526C08K5/134
CPCC08K3/08C08K5/07C08K5/1345C08K5/526C08K13/02C08K2003/085C08K2201/011C08L23/12
Inventor 刘凯孙启林唐淳
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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