CN1301059C - Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent - Google Patents

Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent Download PDF

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Publication number
CN1301059C
CN1301059C CNB2005100377244A CN200510037724A CN1301059C CN 1301059 C CN1301059 C CN 1301059C CN B2005100377244 A CNB2005100377244 A CN B2005100377244A CN 200510037724 A CN200510037724 A CN 200510037724A CN 1301059 C CN1301059 C CN 1301059C
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China
Prior art keywords
silver
antibacterial agent
inorganic material
antibacterial
material clad
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Expired - Fee Related
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CNB2005100377244A
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Chinese (zh)
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CN1663390A (en
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华明扬
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Individual
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Abstract

The present invention relates to a method for preparing a silver carried nano SiO2 antibacterial agent with an inorganic clad structure. The present invention is characterized in that silver carried nano SiO2 antibacterial powder is prepared into a water suspension, and then, chemical cladding treatment is carried out. The present invention comprises steps: butyl titanate is hydrolyzed into anatase TiO2, and anatase TiO2 is clad on the surfaces of silver carried nano SiO2 particles to form antibacterial particles with a clad structure. The silver carried nano SiO2 antibacterial agent with an inorganic cladding structure has good whiteness, good optical stability and good antibacterial durability; the antibacterial rate for colibacillus and staphylococcus aureus is over 99%.

Description

Inorganic material clad silver loaded nanometer SiO 2The preparation method of antibacterial agent
Technical field:
The present invention relates to a kind of preparation method of novel inorganic clad structure antibacterial agent.Especially relate to a kind of inorganic material clad silver loaded nanometer SiO 2The preparation method of antibacterial agent.The preparing technical field that belongs to antibacterial agent.
Background technology:
At present, the antibacterial agent that is used for colibacillus, staphylococcus aureus has nanometer SiO 2The silver of carrier is antimicrobial powder, and it mainly has the following disadvantages:
1, whiteness is relatively poor
2, photostability is relatively poor
3, antibiotic persistence is relatively poor
Therefore its sterilizing rate to colibacillus, staphylococcus aureus is lower, generally only be? %.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, a kind of better whiteness that has is provided, better photostability and antibiotic persistent inorganic material clad silver loaded nanometer SiO 2The preparation method of antibacterial agent.
The object of the present invention is achieved like this: a kind of inorganic material clad silver loaded nanometer SiO 2The preparation method of antibacterial agent is characterized in that it being with silver-carrying nano SiO 2Antibiotic powder is mixed with water suspension, carries out chemistry again and coats processing.
The present invention generates anatase titanium dioxide TiO with the butyl titanate hydrolysis 2, be coated on silver-carrying nano SiO 2The surface of particle, the antimicrobial particle of formation clad structure.This antibacterial agent whiteness is good, and optical stability and antibiotic persistence are good.Its sterilizing rate to colibacillus, staphylococcus aureus is more than 99%.
Embodiment:
Embodiment 1:
With 10g nano silver-carrying SiO 2Powder adds in the 250ml beaker, adds 100ml water, and 2000r/min stirs 15min, makes suspended substance A, and suspended substance A is transferred in the 250ml there-necked flask, stirs and is warming up to 80 ℃ of insulations.In the 50ml beaker, add simultaneously 20ml butyl titanate, 15ml ethanol and 1ml glacial acetic acid, stir faint yellow transparent system B.B slowly is added dropwise among the A, dripped off in 2.5 hours, under 80 ℃, be incubated 1 hour, filter, 120 ℃ of dry products that get.
Embodiment 2:
With 10g nano silver-carrying SiO 2Powder adds in the 250ml beaker, adds 150ml water, and 1900r/min stirs 20min, makes suspended substance A, and suspended substance A is transferred in the 250ml there-necked flask, stirs and is warming up to 85 ℃ of insulations.In the 50ml beaker, add simultaneously 10ml butyl titanate, 20ml ethanol and 1ml glacial acetic acid, stir faint yellow transparent system B.B slowly is added dropwise among the A, dripped off in 3 hours, under 85 ℃, be incubated 1 hour, filter, 120 ℃ of dry products that get.

Claims (2)

1, a kind of inorganic material clad silver loaded nanometer SiO 2The preparation method of antibacterial agent is with silver-carrying nano SiO 2Antibiotic powder is mixed with water suspension, carries out chemistry again and coats processing, it is characterized in that: the butyl titanate hydrolysis is generated anatase titanium dioxide TiO 2, be coated on silver-carrying nano SiO 2The surface of particle, the antimicrobial particle of formation clad structure.
2, a kind of inorganic material clad silver loaded nanometer SiO according to claim 1 2The preparation method of antibacterial agent is characterized in that silver-carrying nano SiO 2Powder 1: 10 by weight~15 adds in the entry, and 1900~2000r/min stirs 15~20min, makes suspended substance A, stirs to be warming up to 80 ℃~85 ℃ insulations; With butyl titanate, ethanol and glacial acetic acid by weight 10~20: 15~20: 1 mix stir faint yellow transparent system B; B is added dropwise among the A, dripped in 2.5~3 hours, under 80 ℃~85 ℃, be incubated 〉=1 hour, filter, the dry product that gets.
CNB2005100377244A 2005-02-01 2005-02-01 Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent Expired - Fee Related CN1301059C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100377244A CN1301059C (en) 2005-02-01 2005-02-01 Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100377244A CN1301059C (en) 2005-02-01 2005-02-01 Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent

Publications (2)

Publication Number Publication Date
CN1663390A CN1663390A (en) 2005-09-07
CN1301059C true CN1301059C (en) 2007-02-21

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CNB2005100377244A Expired - Fee Related CN1301059C (en) 2005-02-01 2005-02-01 Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101255254B (en) * 2008-03-28 2010-06-23 浙江高峰控股集团有限公司 Antibacterial polypropylene pipes and antibacterial composite master batch as well as manufacturing method thereof
CN114180991A (en) * 2021-12-22 2022-03-15 湖南华联瓷业股份有限公司 Production process of wear-resistant glaze and glaze

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849223A (en) * 1984-12-28 1989-07-18 Johnson Matthey Public Limited Company Antimicrobial compositions consisting of metallic silver combined with titanium oxide or tantalum oxide
CN1563183A (en) * 2004-03-31 2005-01-12 华东理工大学 Method for preparing antibiosis ABS products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849223A (en) * 1984-12-28 1989-07-18 Johnson Matthey Public Limited Company Antimicrobial compositions consisting of metallic silver combined with titanium oxide or tantalum oxide
CN1563183A (en) * 2004-03-31 2005-01-12 华东理工大学 Method for preparing antibiosis ABS products

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C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Jiangyin Ruco Technology Co., Ltd.

Assignor: Hua Mingyang

Contract fulfillment period: 2009.4.10 to 2014.4.10 contract change

Contract record no.: 2009320000797

Denomination of invention: Method for preparing inorganic material clad silver loaded nanometer SiO2 antibacterial agent

Granted publication date: 20070221

License type: Exclusive license

Record date: 2009.5.6

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.10 TO 2014.4.10; CHANGE OF CONTRACT

Name of requester: JIANGYIN CITY NUOKE SCIENCE CO., LTD.

Effective date: 20090506

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070221

Termination date: 20160201