CN104389240A - Preparation method of nanometer antibacterial agent for paper - Google Patents
Preparation method of nanometer antibacterial agent for paper Download PDFInfo
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- CN104389240A CN104389240A CN201410552656.4A CN201410552656A CN104389240A CN 104389240 A CN104389240 A CN 104389240A CN 201410552656 A CN201410552656 A CN 201410552656A CN 104389240 A CN104389240 A CN 104389240A
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Abstract
The invention discloses a preparation method of a nanometer antibacterial agent for paper. The preparation method comprises the following steps: preparing cellulose modified with carboxyl, adding an AgNO3 solution into the cellulose modified with carboxyl, adjusting the pH value by using a sodium hydroxide solution or hydrochloric acid, stirring and mixing for a certain time, filtering and taking out the cellulose, performing high-pressure homogenization to obtain carboxylated modified nanometer cellulose which adsorbs Ag<+>, namely the nanometer antibacterial agent for the paper. The preparation method has the beneficial effects as follows: with the carboxylated modified nanometer cellulose as an Ag<+> carrier, the obtained antibacterial agent integrates the advantages of broad antibacterial spectrum, no drug resistance, hydrophily, environment friendliness and the like.
Description
Technical field
The present invention relates to the preparation field of antiseptic, particularly a kind of preparation method of paper nano antibacterial agent.
Background technology
Antibacterially refer to the microbial growth such as anti-bacteria, fungi, breeding and survival within a certain period of time.Anti-biotic material has antibacterial and new function material that is bactericidal property, and its nucleus is antiseptic.The antiseptic of minute quantity adds in common material, namely can be made into anti-biotic material.Antibacterial Agent for Paper mainly can be divided into inorganic antiseptic and organic antibacterial agent, and the volatile matter Sum decomposition thing of organic antibacterial agent may be harmful, and the use in paper has certain limitation.So lack one in prior art to have that anti-microbial property is good, has a broad antifungal spectrum concurrently, environment amenable Antibacterial Agent for Paper.
Summary of the invention
The present invention can not meet the problem of antibiotic property and environment friendly in order to the Antibacterial Agent for Paper solving prior art and prepare simultaneously, and provides a kind of preparation method of paper nano antibacterial agent.
A preparation method for paper nano antibacterial agent, method is carried out according to the following steps:
1. prepare the cellulose of carboxylated modification:
Take 1g cellulose, 0.05g TEMPO, 0.98g NaClO
2joining volume with the 2ml mass concentration NaClO solution that is 16% is in the buffer solution of sodium phosphate of 160ml pH6.8, stirring reaction 24 hours under 50 DEG C of conditions, add absolute ethyl alcohol cessation reaction, solution is poured into stratification in conical flask, outwell supernatant liquor, respectively successively with volumetric concentration be 50% second alcohol and water displacement, dehydration, obtain the cellulose of carboxylated modification.
2. prepare paper nano antibacterial agent:
In the cellulose of the carboxylated modification obtained containing 0.2g over dry step (1), add the AgNO that 20 ~ 80ml concentration is 0.1 ~ 1.0mol/l
3solution, is 2.5 ~ 7.0 with sodium hydroxide solution or salt acid for adjusting pH, is uniformly mixed 2 ~ 8 hours, filters and takes out cellulose, then carry out high pressure homogenizer process and obtain being adsorbed with Ag
+carboxylated modified nanometer cellulose, be paper nano antibacterial agent.
Compared with prior art the invention has the beneficial effects as follows:
The present invention uses the nano-cellulose of carboxylated modification as Ag
+carrier, the advantage such as the antiseptic obtained has had broad-spectrum antibacterial property concurrently, has no drug resistance, hydrophilic and environmental protection.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A preparation method for paper nano antibacterial agent, specifically carries out according to the following steps:
1. prepare the cellulose of carboxylated modification:
1g cellulose, 0.05g TEMPO, 0.98g NaClO is taken by quality
2joining volume with the 2ml mass concentration NaClO solution that is 16% is in the buffer solution of sodium phosphate of the pH6.8 of 160ml, stirring reaction 24 hours under 50 DEG C of conditions, add absolute ethyl alcohol cessation reaction, solution is poured into stratification in conical flask, outwell supernatant liquor, respectively successively with volumetric concentration be 50% second alcohol and water displacement, dehydration, obtain the cellulose of carboxylated modification;
2. prepare paper nano antibacterial agent:
In the cellulose of the carboxylated modification obtained containing 0.2g over dry step 1, add the AgNO that 20ml concentration is 1.0mol/l
3solution is 2.5 with salt acid for adjusting pH, is uniformly mixed 2 hours, filters and takes out cellulose, then carry out high-pressure homogeneous process and obtain being adsorbed with Ag
+carboxylated modified nanometer cellulose, be paper nano antibacterial agent.
Embodiment 2
A preparation method for paper nano antibacterial agent, specifically carries out according to following steps:
1. prepare the cellulose of carboxylated modification:
Identical with the step 1 of embodiment 1.
2, paper nano antibacterial agent is prepared:
In the cellulose of the carboxylated modification obtained containing 0.2g over dry step 1, add the AgNO that 50ml concentration is 0.5mol/l
3solution is 5.0 with salt acid for adjusting pH, is uniformly mixed 5 hours, filters and takes out cellulose, then carry out high-pressure homogeneous process and obtain being adsorbed with Ag
+carboxylated modified nanometer cellulose, be paper nano antibacterial agent.
Embodiment 3
A preparation method for paper nano antibacterial agent, specifically carries out according to following steps:
1. prepare the cellulose of carboxylated modification:
Identical with the step 1 of embodiment 1.
2, paper nano antibacterial agent is prepared:
In the cellulose of the carboxylated modification obtained containing 0.2g over dry step 1, add the AgNO that 80ml concentration is 0.1mol/l
3solution, regulates pH to be 7.0 with sodium hydroxide solution, is uniformly mixed 8 hours, filters and takes out cellulose, then carry out high-pressure homogeneous process and obtain being adsorbed with Ag
+carboxylated modified nanometer cellulose, be paper nano antibacterial agent.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a preparation method for paper nano antibacterial agent, is characterized in that, method is carried out according to the following steps:
(1) cellulose of carboxylated modification is prepared:
Take 1g cellulose, 0.05g TEMPO, 0.98g NaClO
2joining volume with the 2ml mass concentration NaClO solution that is 16% is in the buffer solution of sodium phosphate of 160ml pH6.8, stirring reaction 24 hours under 50 DEG C of conditions, add absolute ethyl alcohol cessation reaction, solution is poured into stratification in conical flask, outwell supernatant liquor, respectively successively with volumetric concentration be 50% second alcohol and water displacement, dehydration, obtain the cellulose of carboxylated modification;
(2) paper nano antibacterial agent is prepared:
In the cellulose of the above-mentioned carboxylated modification obtained containing 0.2g over dry step (1), add the AgNO that 20 ~ 80ml concentration is 0.1 ~ 1.0mol/l
3solution, is 2.5 ~ 7.0 with sodium hydroxide solution or salt acid for adjusting pH, is uniformly mixed 2 ~ 8 hours, filters and takes out cellulose, then carry out high pressure homogenizer process and obtain being adsorbed with Ag
+carboxylated modified nanometer cellulose, be paper nano antibacterial agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552656.4A CN104389240A (en) | 2014-10-17 | 2014-10-17 | Preparation method of nanometer antibacterial agent for paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410552656.4A CN104389240A (en) | 2014-10-17 | 2014-10-17 | Preparation method of nanometer antibacterial agent for paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389240A true CN104389240A (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410552656.4A Pending CN104389240A (en) | 2014-10-17 | 2014-10-17 | Preparation method of nanometer antibacterial agent for paper |
Country Status (1)
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| CN (1) | CN104389240A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671977A (en) * | 2009-09-29 | 2010-03-17 | 河南省新斗彩印刷有限公司 | Preparation method and application of nanometer silver-supported paper antibacterial coating |
| CN102517993A (en) * | 2011-12-20 | 2012-06-27 | 广东壮丽彩印股份有限公司 | Packaging and printing paper substrate with antibacterial property, and preparation method thereof |
| CN102776594A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Cellulose fiber-supported nano silver antibacterial material and preparation method thereof |
| CN103406548A (en) * | 2013-08-08 | 2013-11-27 | 广西大学 | Silver nano particle and preparation method and application thereof |
| US20140083635A1 (en) * | 2012-03-31 | 2014-03-27 | Ningbo Asia Pulp & Paper Co., Ltd. | Process of making antibacterial coating and antibacterial paper with same, and antibacterial paper |
| CN104047198A (en) * | 2013-03-14 | 2014-09-17 | 金东纸业（江苏）股份有限公司 | Preparation method for nano-cellulose |
-
2014
- 2014-10-17 CN CN201410552656.4A patent/CN104389240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671977A (en) * | 2009-09-29 | 2010-03-17 | 河南省新斗彩印刷有限公司 | Preparation method and application of nanometer silver-supported paper antibacterial coating |
| CN102517993A (en) * | 2011-12-20 | 2012-06-27 | 广东壮丽彩印股份有限公司 | Packaging and printing paper substrate with antibacterial property, and preparation method thereof |
| US20140083635A1 (en) * | 2012-03-31 | 2014-03-27 | Ningbo Asia Pulp & Paper Co., Ltd. | Process of making antibacterial coating and antibacterial paper with same, and antibacterial paper |
| CN102776594A (en) * | 2012-07-10 | 2012-11-14 | 东华大学 | Cellulose fiber-supported nano silver antibacterial material and preparation method thereof |
| CN104047198A (en) * | 2013-03-14 | 2014-09-17 | 金东纸业（江苏）股份有限公司 | Preparation method for nano-cellulose |
| CN103406548A (en) * | 2013-08-08 | 2013-11-27 | 广西大学 | Silver nano particle and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 桑显葵等: "TEMPO体系氧化微晶纤维素的动力学研究", 《中国造纸学会第十六届学术年会论文集》 * |
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Application publication date: 20150304 |
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