CN1205864C - Prepn of nano silver-carrying antiseptic - Google Patents
Prepn of nano silver-carrying antiseptic Download PDFInfo
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- CN1205864C CN1205864C CN 00126579 CN00126579A CN1205864C CN 1205864 C CN1205864 C CN 1205864C CN 00126579 CN00126579 CN 00126579 CN 00126579 A CN00126579 A CN 00126579A CN 1205864 C CN1205864 C CN 1205864C
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- silver
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Abstract
The present invention relates to a method for preparing nanometer silver carrier antibacterial powder. The present invention adopts nanometer silicone base oxide and commercial grade silver nitrate of which the purity is more than 90 % as raw materials. The nanometer silicone base oxide and the commercial grade silver nitrate are mixed and synthesized by the preparation of stabilizers (aluminum salt), and are made into the nanometer silver carrier antibacterial powder by low-temperature dehydration and high-temperature drying finally. The powder can be added in various materials of plastics, paint, fiber, ceramics, etc., and is made into various antibacterial products. The nanometer silver carrier antibacterial powder has the characteristics of small particle size, narrow particle diameter distribution, broad antibacterial spectrums, high efficiency, no toxicity, high temperature resistance, long antibacterial time, etc.
Description
That the present invention relates to is the preparation method of nano silver-carrying antiseptic.
In daily life, people contact inevitably by virus or various article that bacterium polluted, thereby cause the generation of disease.Along with human living standard's the raising and the variation of environment, health care consciousness also strengthens gradually, naturally also just require comfortable safe living environment, therefore, generation has the various goods of antibacterial functions, avoiding invasion and attack and the harm of pathogenic microorganisms to human body, is people are subjected to less or avoid noxious bacteria infringement and sanatory developing direction.
At present, the material with antibacterial ability can be divided into natural biological system, inorganic system and organic system three major types substantially.Studies show that the natural biological series antibacterial agent poison life-span is short, warm tolerance is relatively poor, and is subjected to the restriction of safety and processing conditions, and is of less types, not mass marketization.Though the organic system antibacterial agent has been able to extensive use in medical treatment and industrial circle, it also exists and poor heat resistance, facile hydrolysis, service life lacks, easily produces disadvantages such as microorganism, drug resistance except the safety of using.The sterilizing ability that inorganic antibacterial then utilizes metal ions itself such as silver, copper, zinc to be had combines with inorganic material by physics or chemical method and to make.Developed at present the inorganic antiseptic of making carrier with zeolite, apatite, titanium monoxide, basic zirconium phosphate, silica gel, glass, clay pit etc. in succession.But the discoloration problem of silver-series antibacterial agent is still the major obstacle that influences its application performance.
At above problem, purpose of the present invention is exactly that a kind of not easy to change and preparation method of carrying silver antimicrobials that can extensive use of product that makes will be provided.
The preparation method of nano silver-carrying antiseptic provided by the invention is earlier with water nano silicon-based oxide to be modulated into pasty state, adds water-insoluble aluminium salt, mixes with silver nitrate aqueous solution then synthetic, after dewater and drying forms.
The preparation method of nano silver-carrying antiseptic provided by the invention, the slow releasing function that utilizes huge specific surface area that nano silicon-based oxide has and microporous architectural feature to bring to silver ion, and adopted water-insoluble aluminium salt to improve the stability of silver ion as stabilizing agent, hindered its variable color process greatly.
The preparation method of nano silver-carrying antiseptic provided by the invention, the nano silicon-based oxide purity of employing is more than 90%, and its physical form is cotton-shaped and reticulated particle, and molecular formula is SiO
2-X, the X value is 0.4-0.8, average grain diameter is 10 ± 5nm, specific surface area 400-700m
2/ g, purity＞90%, thing are amorphous state mutually.Used silver nitrate is mixed with solution with deionized water, and its concentration range is 2%-20% (weight).All can buy from market.
The preparation method of nano silver-carrying antiseptic provided by the invention, used water-insoluble aluminium salt comprises aluminium phosphate, aluminium borate, alumina silicate etc.
The preparation method of nano silver-carrying antiseptic provided by the invention, the weight ratio 1 of nano-silicon oxide and silver nitrate: 0.01-1: 0.1.
The preparation method of nano silver-carrying antiseptic provided by the invention, the weight ratio of nano silicon-based oxide and water-insoluble aluminium salt is 1: 0.05-1.5: 1.
The preparation method of nano silver-carrying antiseptic provided by the invention is loaded into silver ion in the nano silicon-based oxide, prepared carrying silver antimicrobials, and its characteristic is as follows:
The face shaping white powder
Initial size 20-80nm
Density 2.78g/m
3
Aggregation size≤800nm
Warm tolerance≤950 ℃ (being higher than heat-resisting 600 ℃ that have the inorganic silver series antibacterial agent)
The preparation method of nano silver-carrying antiseptic provided by the invention, because adopting nano silicon-based oxide is the preparing carriers carrying silver antimicrobials, rely on the advantage of its nano level particle diameter, and working in coordination with down at water-insoluble aluminium salt, after being added into base-material, silver ion is weakened with the response intensity in the external world.Be a kind of preparation method who makes product carrying silver antimicrobials that can extensive use not easy to change.Nano level in addition carrying silver antimicrobials can evenly disperse in base-material as additive, and addition is few, thereby has reduced the manufacturing cost of product.
Embodiment: at first 100g nano silicon-based oxide and 60g alumina silicate are joined in the 300ml deionized water, under room temperature and stirring condition, make its even mixing then, slowly be that 15% silver nitrate aqueous solution is added dropwise in the mixed liquor with the 60g mass concentration, disperse with ultrasonic while dripping, after dripping silver nitrate, continued ultrasonic 20 minutes, in 300 ℃ of baking ovens dry 2 hours then, after airslide disintegrating mill is made one-level and dismissed in 900 ℃ of baking ovens dry 1 hour more again,, obtain the nano silver-carrying antiseptic of white powder after airslide disintegrating mill is made secondary dismisses.
Claims (3)
1, a kind of preparation method of nano silver-carrying antiseptic, comprise silver nitrate in the raw material, it is characterized in that: with water nano silicon-based oxide is modulated into pasty state earlier, adds water-insoluble aluminium salt, mix with silver nitrate aqueous solution then synthetic, after dehydration and drying form.
2, the preparation method of nano silver-carrying antiseptic as claimed in claim 1 is characterized in that: the weight ratio of nano silicon-based oxide and silver nitrate is 1: 0.01-1: 0.1.
3, the preparation method of nano silver-carrying antiseptic as claimed in claim 1 is characterized in that: the weight ratio of nano silicon-based oxide and water-insoluble aluminium salt is 1: 0.05-1.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126579 CN1205864C (en) | 2000-09-28 | 2000-09-28 | Prepn of nano silver-carrying antiseptic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126579 CN1205864C (en) | 2000-09-28 | 2000-09-28 | Prepn of nano silver-carrying antiseptic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1344494A CN1344494A (en) | 2002-04-17 |
| CN1205864C true CN1205864C (en) | 2005-06-15 |
Family
ID=4591889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00126579 Expired - Fee Related CN1205864C (en) | 2000-09-28 | 2000-09-28 | Prepn of nano silver-carrying antiseptic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1205864C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308383C (en) * | 2005-04-29 | 2007-04-04 | 宁波华实纳米材料有限公司 | Method of applying inorganic carrier nano silver powder in preparing antibiosis plastic |
| CN100352872C (en) * | 2005-11-30 | 2007-12-05 | 深圳清华大学研究院 | Antibacterial, mildew-proof, algae-resistant and anticorrosive paint and application thereof |
| CN103098795B (en) * | 2013-01-28 | 2014-07-02 | 阎昭良 | Silver ion sterilizing dispersible tablet as well as preparation process and application thereof in removal of residual bacteria on fruits and vegetables |
| CN116831140A (en) * | 2022-07-05 | 2023-10-03 | 汕头市优森活新材料科技有限公司 | Indoor efficient antibacterial odor removing agent and preparation method and application thereof |
-
2000
- 2000-09-28 CN CN 00126579 patent/CN1205864C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1344494A (en) | 2002-04-17 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HONGSHENG MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOUSHAN TOMORROW NANOMATERIALS CO., LTD. Effective date: 20080404 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080404 Address after: No. 150 Xinqiao Road, Dinghai, Zhejiang Patentee after: Gelante Special Paint Co., Ltd., Zhoushan City Address before: No. 1, Pingyang Industrial Zone, Putuo District, Zhejiang, Shenjiamen Patentee before: Zhoushan Mingri Nanometer Techn Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050615 Termination date: 20150928 |
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| EXPY | Termination of patent right or utility model |