Long-acting controlled-release antibacterial mildew-proof material and preparation method thereof

An antibacterial, mildew-proof, slow-release technology, applied in botanical equipment and methods, nanotechnology for materials and surface science, plant growth regulators, etc. Problems such as poor antibacterial effect of mold, etc., to achieve the effect of good antibacterial and antifungal effect, good thermal stability, and obvious antibacterial effect

Active Publication Date: 2014-12-10
SHAANXI UNIV OF SCI & TECH
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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 a long-acting slow-release antibacterial and antifungal material and its preparation method, to overcome the defect

Method used

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  • Long-acting controlled-release antibacterial mildew-proof material and preparation method thereof
  • Long-acting controlled-release antibacterial mildew-proof material and preparation method thereof
  • Long-acting controlled-release antibacterial mildew-proof material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Step 1: Preparation of carbon microspheres:

[0034] Dissolve glucose in deionized water, prepare a solution with a molar concentration of 0.5 mol / L, place it in a hydrothermal reactor at 180°C for a reaction time of 8 hours; after the reaction is completed, centrifuge the resulting mixture, and use Wash with deionized water and absolute ethanol respectively, and dry in a drying oven for 24 hours to obtain carbon microspheres.

[0035] Step 2: Preparation of hollow mesoporous ZnO microspheres:

[0036] Put 0.5g of carbon microspheres in an aqueous solution of zinc acetate with a molar concentration of 0.5mol / L, ultrasonically treat for 60min, age for 8h, and after centrifugation, wash with deionized water and absolute ethanol three times respectively, dry at 500°C Calcined for 2 hours to obtain hollow mesoporous ZnO microspheres. The hollow mesoporous ZnO microspheres have a diameter of about 50nm and are assembled from a plurality of ZnO particles with a diameter of ...

Embodiment 2

[0041] Step 1: Preparation of carbon microspheres:

[0042] Dissolve glucose in deionized water, prepare a solution with a molar concentration of 0.85 mol / L, place it in a hydrothermal reactor at 170°C for a reaction time of 11 hours; after the reaction is completed, centrifuge the resulting mixture, and use Wash with deionized water and absolute ethanol respectively, and dry in a drying oven for 24 hours to obtain carbon microspheres.

[0043] Step 2: Preparation of hollow mesoporous ZnO microspheres:

[0044] Put 0.4g of carbon microspheres in an aqueous solution of zinc acetate with a molar concentration of 0.6mol / L, ultrasonically treat for 50min, age for 10h, and after centrifugation, wash with deionized water and absolute ethanol three times respectively, dry at 475°C Calcined for 2.5 hours to obtain hollow mesoporous ZnO microspheres. The hollow mesoporous ZnO microspheres have a diameter of about 50nm and are assembled from a plurality of ZnO particles with a diamete...

Embodiment 3

[0049] Step 1: Preparation of carbon microspheres:

[0050] Glucose was dissolved in deionized water to prepare a solution with a molar concentration of 1.0 mol / L, and placed in a hydrothermal reactor at 160°C for a reaction time of 14 hours; after the reaction was completed, the resulting mixture was centrifuged and used Wash with deionized water and absolute ethanol respectively, and dry in a drying oven for 24 hours to obtain carbon microspheres.

[0051] Step 2: Preparation of hollow mesoporous ZnO microspheres:

[0052] Put 0.3g of carbon microspheres in an aqueous zinc acetate solution with a molar concentration of 0.7mol / L, ultrasonically treat for 40min, age for 12h, and after centrifugation, wash with deionized water and absolute ethanol three times respectively, dry at 450°C Calcined for 3 hours to obtain hollow mesoporous ZnO microspheres. The hollow mesoporous ZnO microspheres have a diameter of about 50nm and are assembled from a plurality of ZnO particles with ...

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Abstract

The invention relates to a long-acting controlled-release antibacterial mildew-proof material and a preparation method thereof, aiming at overcoming the defects that inorganic antibacterial agent nanometer ZnO is poor in effect of inhibiting mould and an organic mildew preventive agent is short in antibacterial time and easy to migrate. The invention provides an inorganic/organic composite antibacterial mildew-proof material, which is prepared by the following steps: arranging a glucose solution in a hydrothermal reaction kettle for reacting, centrifugally separating and washing, and drying to obtain carbon microspheres; arranging the carbon microspheres in an aqueous solution of zinc acetate, performing ultrasonic treatment, aging, centrifugally separating, washing, drying and calcining, thereby obtaining hollow mesoporous ZnO microspheres; and soaking the hollow mesoporous ZnO microspheres with an organic mildew preventive agent solution, and drying, thereby obtaining drug-loading mesoporous ZnO microspheres, namely the long-acting controlled-release antibacterial mildew-proof material. The long-acting controlled-release antibacterial mildew-proof material prepared by the invention has the advantages of non-toxicity, environment friendliness, good antibacterial and mildew-proof effects, long antibacterial time, good thermal stability and the like and can be widely applied to antibacterial and mildew-proof treatment in the fields of leather, textiles, papermaking and furniture.

Description

technical field [0001] The invention relates to an antibacterial and antifungal material, in particular to a long-acting slow-release antibacterial and antifungal material and a preparation method thereof. Background technique [0002] Antibacterial materials refer to a class of materials that have the function of killing harmful bacteria or inhibiting the growth and reproduction of harmful bacteria. At present, common antibacterial agents can be divided into three categories: organic, inorganic and natural. Organic antibacterial agents have the characteristics of quick effect and strong bactericidal ability, but they are prone to resistance (resistance) to microorganisms, and have disadvantages such as easy migration and poor heat resistance. Natural antibacterial agents have the characteristics of low toxicity and high safety, but their service life is short and their heat resistance is poor (carbonization and decomposition at 150°C to 180°C). In recent years, with the ...

Claims

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Application Information

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IPC IPC(8): A01N25/08A01N25/12A01N43/78A01N43/80A01N43/52A01N47/04A01N37/10A01P1/00B82Y30/00B82Y40/00
Inventor 刘俊莉王敏惠爱平马建中
Owner SHAANXI UNIV OF SCI & TECH
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