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Antibacterial property 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: 2013-04-24
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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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  • Antibacterial property resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Disperse and weigh the nano-magnesium oxide powder in deionized water with ultrasonic waves, add lanthanum chloride at a ratio of 1:0.5 according to the amount of lanthanum chloride and magnesia, and adjust the pH value 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 three times with distilled water, dried at 120°C, roasted for 3 hours, taken out and ground to make La 3+ / MgO antibacterial agent; then mix 5 parts of the antibacterial agent prepared above with 100 parts of polyethersulfone resin, and extrude at 250° C. to obtain antibacterial polyethersulfone plastic. According to the calculation of the antibacterial performance test, the antibacterial rate of the material against yeast reached 92%.

[0032]

Embodiment 2

[0034] Disperse and weigh the nano-magnesium oxide powder in deionized water with ultrasonic waves, and add lanthanum chloride at a ratio of 1:0.3 according to the amount of lanthanum chloride and magnesia, and adjust the pH value of the solution to 2 with acetic acid. After stirring for 1 hour at a temperature of 80°C, the material was filtered, washed four times with distilled water, dried at 150°C, roasted for 4 hours, taken out and ground to make La 3+ / MgO antibacterial agent; then mix 8 parts of the antibacterial agent prepared above with 100 parts of polyether ether ketone resin, and extrude at 350° C. to obtain antibacterial polyetheretherketone plastic. According to the calculation of the antibacterial performance test, the antibacterial rate of the material against Gram-negative Escherichia coli reached 96%.

[0035]

Embodiment 3

[0037] Disperse and weigh the nano-magnesium oxide powder in deionized water with ultrasonic waves, and add lanthanum chloride at a ratio of 1:0.8 according to the amount of lanthanum chloride and magnesia, and adjust the pH of the solution to 6 with dilute hydrochloric acid. Stir at 60°C for 5 hours, filter the material, wash five times with distilled water, dry at 180°C, roast for 1 hour, take it out and grind to make La 3+ / MgO antibacterial agent; then mix 10 parts of the antibacterial agent prepared above with 100 parts of polyethylene glycol resin, and extrude at 80° C. to obtain antibacterial polyethylene glycol plastic. According to the calculation of the antibacterial performance test, the antibacterial rate of the material against Gram-positive Staphylococcus aureus reaches 98%.

[0038]

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Abstract

The invention provides an antibacterial property resin composite material, which is prepared by 100 parts of matrix resin and 5-10 parts of lanthanum / magnesium oxide antibacterial agent prepared by nanometer magnesia and lanthanum chloride. According to the material, the composite material of lanthanum (La3+) and magnesium oxide (MgO) is taken as the antibacterial agent, then the antibacterial agent and plastic materials are mixed uniformly according to different proportions, the antibacterial property resin composite material is treated through conventional plastic preparation technology, the technology is simple, the original technology is not changed, the prepared composite material has good antibacterial activity, the antibacterial activity for various bacterium can reach above 88%, and other mechanical properties of the plastics are not damaged.

Description

[0001] technical field [0002] The invention relates to the technical field of polymers, in particular to an antibacterial resin composite material and a preparation method thereof. [0003] Background technique [0004] Microorganisms in the form of bacteria and molds can easily infect humans, animals and plants as pathogenic bacteria, 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. [0005] Studies have shown that: organic antibacterial materials have weak antibacterial properties, and their own 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, ...

Claims

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Application Information

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Patent Type & Authority Applications(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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