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Sepiolite broad-spectrum inorganic antibiotic agent containing composite metal ion and its preparation method

A composite metal ion and inorganic antibacterial agent technology, applied in the field of antibacterial materials, can solve the problems of difficult wide application, reduction of antibacterial strength and antibacterial persistence, easy oxidation and reduction, etc., achieve simple preparation process, wide range of uses, and improve comprehensive performance effect

Inactive Publication Date: 2008-03-19
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two major problems in the use of silver-loaded antibacterial agents. One is the problem of discoloration. Due to the high chemical activity of silver ions, it is easy to oxidize and reduce, and discoloration occurs, resulting in a decrease in its antibacterial strength and antibacterial persistence, which affects the actual antibacterial effect. and range
The second is that the price is high and it is difficult to widely apply the problem
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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A kind of silver-zinc ion composite sepiolite inorganic antibacterial agent (silver ion: zinc ion=1: 1) and preparation method thereof

[0018] The carrier sepiolite sample used in this example comes from Leibao Sepiolite Co., Ltd., Nanyang City, Henan Province. The author uses X-ray diffraction analysis (XRD), infrared absorption spectrum (IR) and scanning electron microscopy (SEM) Methods The original sepiolite used in the example and the sepiolite sample after separation, purification and activation were tested and analyzed. The results show that the original sepiolite contains more quartz, talc and carbonate minerals. The impurity components of the sample after purification and activation are removed, and the ion exchange and adsorption properties are improved, but the structure of sepiolite remains unchanged.

[0019] In the present embodiment, a composite silver-zinc ion sepiolite inorganic antibacterial agent (silver ion: zinc ion=1: 1) and prepara...

Embodiment 2

[0028] A kind of composite silver-zinc ion sepiolite inorganic antibacterial agent in the present embodiment (silver ion: zinc ion=1: 4) and preparation method thereof and a kind of composite silver-zinc sepiolite inorganic antibacterial agent described in embodiment 1 Agent (silver ion: zinc ion=1: 1) and preparation method thereof are identical in preparation raw material, process method, but the composite ratio of silver ion and zinc ion is different. By inductively coupled plasma emission spectrometry (ICP) analysis and antibacterial performance detection, compared with the same kind of antibacterial agent in embodiment 1, the silver ion amount contained in the antibacterial agent of this example reduces, the zinc ion amount increases, and the antibacterial performance is still good. The results are detailed in the attached "antibacterial agent antibacterial performance test result table in the implementation example". This is beneficial to reduce cost and avoid the defect...

Embodiment 3

[0029] Embodiment 3: a kind of silver-copper ion composite sepiolite inorganic antibacterial agent (silver ion: copper ion=1: 1) and preparation method thereof

[0030] The preparation method of a kind of composite silver-copper ion sepiolite inorganic antibacterial agent (silver ion: copper ion=1: 1) described in the present embodiment is carried out as follows:

[0031] (1) Mix the separated and purified sepiolite with hydrochloric acid with a concentration of 1.2mol / L at a solid-to-liquid ratio of 1:40, and stir for 8 hours at a temperature of 80°C;

[0032] (2) dehydration by centrifugation or filtration, after washing several times, dry at a temperature of 105°C;

[0033] (4) Roasting at a temperature of 230° C. for 3.5 hours;

[0034] (5) Treat the sepiolite prepared in step (4) with trisodium phosphate having a concentration of 0.5 mol / L at a water bath temperature of 60°C for 6 hours, then filter, wash and dry;

[0035] (6) mixing the soluble silver salt and the solu...

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Abstract

The invention discloses a sepiolite-typed inorganic antimicrobial agent with compound metal antimicrobial ion and a preparation method, which belongs to the field of antimicrobial material. The invention is characterized in that the natural sepiolite with low cost is adopted as carrying material, and then after activation modification, the sepiolite carries compound silver ion and zinc ion or compound silver ion and copper ion with the method of ion exchange and absorption, therefore, the inorganic antimicrobial agent with strong antimicrobial capability is prepared well. The compound antimicrobial agent provided by the invention has simple preparation process, low cost, no discoloration, strong broad-spectrum antimicrobial capability and a wide range of use. The invention not only can be used as antimicrobial material separately, but also can be added into a plurality of materials, such as plastic, coating, fiber, ceramic, decorative and architectural material and daily cosmetic, therefore, product with antimicrobial property can be prepared for application. Meanwhile, as the sepiolite carrier has good rheological property, thermal stability, dispersion, mechanical strength and other good properties, overall performance of the product can be improved.

Description

1. Technical field [0001] The invention relates to a class of broad-spectrum inorganic antibacterial agents and a preparation method thereof. It specifically relates to a sepiolite type inorganic antibacterial agent containing compound antibacterial metal ions and a preparation method thereof. It belongs to the field of antibacterial materials. 2. Technical background [0002] Harmful microorganisms (bacteria, fungi, molds, etc.) and viruses are widely distributed in nature, and there are many kinds, which seriously threaten human health. Antibacterial agents are substances that can inhibit and kill harmful microorganisms within a certain period of time. The use of antibacterial agents plays an important role in effectively preventing the growth and reproduction of various bacteria, fungi and molds, maintaining environmental sanitation, and avoiding the occurrence and spread of epidemics. With the progress of society and the improvement of people's living standards, the r...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01N25/08A01P3/00
Inventor 刘菁张玉林金辉叶巧明汪灵邓苗王以明胡子文
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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