Attapulgite material with anti-bacterial function and preparation method thereof

A technology of attapulgite and attapulgite powder, which is applied in botany equipment and methods, fungicides, chemicals for biological control, etc., and can solve problems such as heavy metal pollution, high cost, and complicated compounding process of heavy metals and materials , to achieve the effect of enhanced antibacterial power, low production cost, and large industrial application prospects

Inactive Publication Date: 2013-11-20
GUANGDONG TAIBAO MEDICAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In actual use, attapulgite is often used as a matrix material to modify attapulgite, and then improve the adsorption performance or bonding performance of attapulgite, so as to improve its application in sewage treatment, air purification and building materials. It is relatively common, but there are few reports on the use of attapulgite as a matrix material in antibacterial functional materials
Application No. 03131757.X reported the attapulgite-silver nanocomposite antibacterial material and its preparation method, but the process of compounding heavy metals and materials is complicated, the cost is high, and improper use will cause heavy metal pollution

Method used

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  • Attapulgite material with anti-bacterial function and preparation method thereof
  • Attapulgite material with anti-bacterial function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] S1. For granulation, put attapulgite pellets with a prefabricated core of 3 mm into the granulator, spray 10 kg of blank water solution—add 6 kg of attapulgite powder—start the equipment and stir for 20 minutes—spray 10 kg of blank water solution repeatedly Add 6kg of attapulgite and continue to stir for 20 minutes—increase the amount of water agent to 24kg, add 10kg of attapulgite powder—become a ball of 3mm, stop adding water—continue to round for 30 minutes—add 10kg of attapulgite—continue to round to obtain Semi-finished products. The whole production process takes 2.5 hours;

[0035] S2. Drying at 80°C for 24 hours until the moisture is less than 2% of the total mass fraction to obtain the final product.

[0036] The antibacterial rates of the finished product to Escherichia coli and Candida albicans are 10% and 15% respectively.

Embodiment 2

[0038] The antibacterial effects of adipic hydrazide, 2-imidazolidinone, L-lysine, urea, ammonium chloride and chitosan were determined by agar diffusion disc method.

[0039] The experimental results prove that the antibacterial effects of adipic hydrazide, 2-imidazolidinone, L-lysine, urea, ammonium chloride and chitosan on Escherichia coli and Candida albicans under the same dosage conditions are as follows: 55% and 60%, 48% and 52%, 58% and 60%, 40% and 46%, 49% and 53%, 68% and 75%.

Embodiment 3

[0041] S1. Preparation of functional water agent, weigh 4kg of adipic hydrazide, dissolve in 40kg of water, stir to dissolve evenly. It is prepared into a functional water agent with a mass concentration of 10%;

[0042] S2. Granulating, put attapulgite pellets with a prefabricated inner core of 3 mm into the granulator, spray 10 kg of functional water agent in S1—add 6 kg of attapulgite powder—start the equipment and stir for 20 minutes—spray 10 kg repeatedly Add 6kg of attapulgite to functional water and continue to stir for 20 minutes—increase the amount of functional water to 24kg, add 10kg of attapulgite powder—to form a ball of 3mm, stop adding functional water—continue to roll for 30 minutes—add 10kg of attapulgite Stick clay - continue to roll to get a semi-finished product. The whole production process takes 2.5 hours, and the mass ratio of modified raw materials to attapulgite powder is 1:8;

[0043] S3. Drying at 80°C for 24 hours until the moisture is less than 2% ...

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PUM

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Abstract

The invention discloses an attapulgite material with an anti-bacterial function and a preparation method thereof. The preparation method of the attapulgite material comprises the following main steps of: packaging certain materials containing amine groups onto the surface of the attapulgite by virtue of a functional water agent preparation process, a pelletizing process, a drying process and the like; enabling the attapulgite to have the special performances of the modified material while not damaging the structure of the attapulgite. The modified material can be used for absorbing bacteria with negative charges, so that negative charges on bacterial cell walls and cell membranes are not uniformly distributed, the synthesis of the cell walls is interfered, the cell wall synthesis and solubility equilibrium under the natural condition is broken through, and the bacteria are dissolved and died, and therefore, the anti-bacterial and bacteriostatic performances are achieved.

Description

technical field [0001] The invention relates to the technical field of antibacterial functional materials, in particular to an attapulgite material with antibacterial function and a preparation method thereof. Background technique [0002] Attapulgite refers to a clay mineral mainly composed of attapulgite. Attapulgite is a crystalline hydrated magnesium aluminum silicate mineral with a unique layer chain structure. Attapulgite is currently used in petroleum, chemical, building materials, papermaking, medicine, agriculture and many other fields. In particular, the unique structural characteristics of attapulgite endow it with certain adsorption properties, making it widely used in sewage treatment, air purification, medical and other fields. Its adsorption mainly includes physical adsorption and chemical adsorption. The essence of physical adsorption is to adsorb the adsorbate molecules on the inner and outer surfaces of attapulgite through van der Waals force. The exist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N37/28A01N43/50A01N37/44A01N47/28A01N43/16A01N59/00A01P1/00A01P3/00
Inventor 卢亢
Owner GUANGDONG TAIBAO MEDICAL SCI TECH
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