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A kind of antibacterial resin composite material and preparation method thereof

A resin composite material and antibacterial technology, which is applied in the polymer field to achieve the effects of improving the bacteriostatic rate, good bacteriostasis and simple process

Active Publication Date: 2017-05-03
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the shortcoming of existing antibacterial resin composite material, aims to provide a kind of antibacterial good high-performance antibacterial resin composite material and preparation method thereof

Method used

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  • A kind of antibacterial resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Disperse the weighed nano-magnesium oxide powder with ultrasonic waves in deionized water. According to the ratio of lanthanum chloride to magnesium oxide, add lanthanum chloride and adjust the pH of the solution to 4 with dilute hydrochloric acid. After stirring for 2 hours at a temperature of 60°C, the material was filtered, washed with distilled water three times, dried at 120°C, calcined for 3 hours, taken out and ground to make La 3+ / MgO antibacterial agent; and then mix 5 parts of the antibacterial agent prepared above with 100 parts of polyethersulfone resin, and extrude it at 250° C. to obtain an antibacterial polyethersulfone plastic. According to the calculation of antibacterial performance test, the antibacterial rate of this material to yeast reaches 92%.

Embodiment 2

[0028] Disperse the weighed nano-magnesium oxide powder in deionized water by ultrasonic wave. According to the ratio of lanthanum chloride to magnesium oxide, add lanthanum chloride and adjust the pH of the solution to 2 with acetic acid. After stirring for 1 hour at a temperature of 80°C, the material was filtered, washed with distilled water four times, dried at 150°C, calcined for 4 hours, taken out and ground to make La 3+ / MgO antibacterial agent; and then mix 8 parts of the antibacterial agent prepared above with 100 parts of polyether ether ketone resin, and extrude it at 350° C. to obtain antibacterial polyether ether ketone plastic. According to the calculation of antibacterial performance test, the antibacterial rate of this material against Gram-negative Escherichia coli reaches 96%.

Embodiment 3

[0030] Disperse the weighed nano-magnesium oxide powder with ultrasonic waves in deionized water. According to the ratio of lanthanum chloride to magnesium oxide, add lanthanum chloride and adjust the pH of the solution to 6 with dilute hydrochloric acid. Stir for 5 hours at a temperature of 60°C, filter the material, wash with distilled water five times, dry at 180°C, bake for 1 hour, take out and grind to make La 3+ / MgO antibacterial agent; and then mix 10 parts of the antibacterial agent prepared above with 100 parts of polyethylene glycol resin, and extrude and form at 80° C. to obtain antibacterial polyethylene glycol plastic. According to the calculation of antibacterial performance test, the antibacterial rate of the material against Gram-positive Staphylococcus aureus reached 98%.

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Abstract

The invention provides an antibacterial resin composite material, which is prepared from 100 parts of matrix resin and 5-10 parts of lanthanum / magnesia antibacterial agent made of nano-magnesia and lanthanum chloride. The present invention uses the composite material of lanthanum (La3+) and magnesium oxide (MgO) as the antibacterial agent, and then uniformly mixes it with the plastic material in different proportions, and is processed by the conventional plastic preparation process, the process is simple, the original process is not changed, and the formed compound The material has good antibacterial properties, and the antibacterial rate against various bacteria reaches more than 88%; and it does not destroy other mechanical properties of the plastic itself.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to an antibacterial resin composite material and a preparation method thereof. Background technique [0002] Microorganisms in the form of bacteria, molds and other forms of pathogens can easily infect humans, animals and plants, cause diseases, and endanger human health and life. Antibacterial materials are an effective means to solve the above problems, especially the materials used in medical treatment must have good antibacterial properties. [0003] Studies have shown that organic antibacterial materials have weak antibacterial properties, and their decomposition products and volatiles may be harmful to the human body, so their applications are limited. Inorganic antibacterial materials have the advantages of high safety, good heat resistance and durability. Inorganic antibacterial materials are mainly oxide-loaded silver, molecular sieve-loaded silver, etc. In the silver-lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/08C08L67/04C08L77/04C08L79/08C08L75/04C08L81/06C08L61/16C08K3/08C08K3/22B29C47/92B29C48/92
CPCB29C48/022B29C48/92B29C2948/92704B29C2948/92895
Inventor 杨桂生计娉婷
Owner HEFEI GENIUS NEW MATERIALS
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