CN104072841A - Long-acting bacteriostatic plastic sheet and manufacturing method thereof - Google Patents
Long-acting bacteriostatic plastic sheet and manufacturing method thereof Download PDFInfo
- Publication number
- CN104072841A CN104072841A CN201310097886.1A CN201310097886A CN104072841A CN 104072841 A CN104072841 A CN 104072841A CN 201310097886 A CN201310097886 A CN 201310097886A CN 104072841 A CN104072841 A CN 104072841A
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- plastic sheet
- silicate glass
- long
- acting bacteriostatic
- phosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
Abstract
The invention provides a long-acting bacteriostatic plastic sheet and a manufacturing method thereof, belonging to the technical field of bacteriostasis. According to the invention, a silver phosphate-silicate glass composite is uniformly dispersed in the plastic sheet, wherein a mass ratio of silver phosphate to silicate glass is 1: 50-100, and the mass content of the silver phosphate-silicate glass composite in the long-acting bacteriostatic plastic sheet is 0.5 to 0.8%. Silver phosphate and silicate glass are mixed in proportion, then sintering is carried out so as to allow the obtained mixture to be in a molten liquid state, then the molten mixture is cooled to normal temperature to form a glass body, and finally, the glass body and a plastic material master batch are subjected to hot melting mixing and extrusion cooling molding. The bacteriostatic plastic sheet can be put in any liquid needing bacteriostasis.
Description
Technical field
The invention belongs to antibacterial technical field, relate to the method for the antibacterial plastic sheet of a kind of New-type long-acting and making.
Background technology
The antibacterial hygiology field that belongs to, antibacterial is breeding for the bacterium that can cause food, water corruption in daily life (as streptococcus aureus, vibrios, escherichia coli, Salmonellas, proteus bacterium, sickle-like bacteria etc.).Metal ion has bacteria growing inhibiting effect as silver, copper, zinc, tin, mercury, lead, cobalt, nickel, iron, manganese etc., just by people, found a long time ago, wherein silver ions is due to hypotoxicity, worldwide by everybody, paid close attention in recent years, and round the bacteriostatic action of silver ions, develop many antibacterial products, the scope that product is dabbled comprises: medicine equipment, medical package material, medical aseptic consumptive material, food product pack, Environmental Engineering Material, the daily utensil that is filled with water, kitchen utensils etc.These product development and application, for the creation of good environment, avoid generation that medical treatment infects and the fresh-keeping and long-term preservation of food that good technique means and method are provided.
What in above-mentioned Application Areas, pay close attention to is all the functional product for various moulding, by the effect of silver ions, gives bacteria resistance function, and often ignored, grow much work-ing life and the product of Reusability, need to have long-lasting bacteriostatic action.In addition, silver ions fungistat is added in various materials in a large number, especially in the material of food splendid attire vessel or the top coat of vessel, if the slow releasing function of silver ions fungistat is poor, be easy to so occur the excessive phenomenon being released in food of silver ions short period of time, thereby cause that silver ions is poisoning, so the exploitation of the antibacterial product of silver ions and use shortage science in many products.
Except the problems referred to above, in actual life, people's many containers used in everyday and vessel are nearly all without above-mentioned bacteria resistance function.In addition, if do not need people when antibacterial to use the apparatus of giving bacteria resistance function, also can cause unnecessary waste.So how to make the more scientific of silver ions bacteriostatic action use, just need the convenient product of science again of our application, this is another starting point of the present invention.
Based on above-mentioned idea, through literature research and experiment, a kind of have silver ions slow releasing function, antibacterial plastic sheet long-acting, easy to use are made in this invention.
Summary of the invention
The present invention is based on silver ions and need that slowly-releasing, antibacterial plastic sheet needs are long-acting, using can be quantitatively and the accessibility of use and study making.
Relate to the method that the antibacterial plastic sheet of a kind of New-type long-acting is made.Described here long-acting be that the prepared antibacterial plastic sheet Antifungal activity of application present method is long-acting,
A kind of long-acting bacteriostatic plastic sheet of the present invention, it is characterized in that, the dispersed matrix material that has Trisilver phosphate-silicate glass in plastic sheet, wherein the mass ratio of Trisilver phosphate and silicate glass is 1:(50-100), the mass content of Trisilver phosphate-silicate glass complex body in long-acting bacteriostatic plastic sheet is 0.5%-0.8%.
The preferred 2mm of thickness of long-acting bacteriostatic plastic sheet.
The method of preparing above-mentioned a kind of long-acting bacteriostatic plastic sheet, is characterized in that, comprises the following steps:
(1) sodium phosphate and the Silver Nitrate ratio reaction of 1:3 are in molar ratio prepared to Trisilver phosphate precipitation, quiet heavy abandoning supernatant, residue throw out is centrifugal, discards centrifuged supernatant; Centrifugal sediment cleans up with deionized water, and last gained throw out is preferably 102 ℃ of dry for standby, and centrifugal force is preferably not less than 6500g;
(2) choose normal silicate glass (or directly substitute and dose as batching by proportioning with the raw materials such as alkali, quartz sand of producing silicate glass) and clean oven dry, by the same silicate glass of Trisilver phosphate (or directly with the alkali, quartz sand etc. of producing silicate glass in the alternative batching of proportioning) in 1:(50-100) the ratio mixing of (weight ratio), sintering makes it to be fused solution, generally be not less than 1200 ℃, preferably 1200 ℃, be cooled to normal temperature and form vitreum; Use ball mill grinding vitreum, utilize ultrasonic vibration sieve series to become particle diameter to be not more than the composite powder of Trisilver phosphate-silicate glass of 30 μ m;
(3) composite powder of above-mentioned gained Trisilver phosphate-silicate glass is proportionally passed through to melt compounding, extruding cooling forming with plastic material masterbatch, make the antibacterial thin slice of sizing.
Above-mentioned plastic material masterbatch refers to conventional resistant to elevated temperatures macromolecular material, as polyethylene (PE), polypropylene (PP) or more resistant to elevated temperatures segregation Ethylene Dichloride (PVDC) etc.
By the mode in antibacterial thin slice press flute and sign, inform the quantitative using method of user.This antibacterial thin slice, can solve the various inconvenience that exist in the antibacterial utilization of present silver ions, and this utilization scope is expanded more, especially more practical aspect the preservations such as food liquid or that soak in liquid and tap water beverage.
The preparation of the antibacterial material of slowly-releasing.Utilize sodium phosphate to prepare Trisilver phosphate with Silver Nitrate reaction, in this process, utilize Trisilver phosphate to be insoluble in the character that water can form precipitation, by centrifugal separation method precipitate phosphoric acid silver, utilize centrifugal means to wash out the SODIUMNITRATE in throw out.Utilize Trisilver phosphate to prepare antibacterial vitreum powder with the consistency of silicate glass body, in order to control the release rate of silver ions.
This antibacterial plastic sheet can be placed in the antibacterial liquid of any needs, by liquid volume number, calculate plastic sheet and place quantity, avoided excessive use, thoroughly solved the problem of using while needing simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of antibacterial plastic sheet, the antibacterial thin slice of (1) strip, (2) thin slice indenture, (3) consumption sign.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
The preparation of the antibacterial material of slowly-releasing.By sodium phosphate and Silver Nitrate in molar ratio the ratio of 1:3 make reaction system, after question response completes, in system, can form a large amount of Trisilver phosphates precipitations, quiet heavy most of supernatant liquor that discards; Residue throw out centrifugal (centrifugal force is not less than 6500g) discards centrifuged supernatant; To the washed with de-ionized water throw out of centrifugal sediment, quiet heavy with 5 times, discard the most of supernatant liquor in top, residue throw out is centrifugal, and this process repeats three times, last 102 ℃ of dry for standby of gained throw out.Choosing normal silicate glass (or the direct alkali with production silicate glass, quartz sand etc. are dosed by proportioning) cleans and dries, by the same silicate glass of Trisilver phosphate (or batching) in 1:50(weight ratio) ratio dosing, 1200 ℃ of sintering make it to be fused solution, slowly cool to normal temperature and form vitreum; Use ball mill grinding vitreum, utilize ultrasonic vibration sieve series to become particle diameter to be not more than the silver phosphate glass body powder of 30 μ m.
Antibacterial plastic sheet is made.By above-mentioned gained silver phosphate glass powder according to 0.5%(weight ratio) ratio add same macromolecular material masterbatch and by forming machine, push cooling forming as polyethylene (PE), polypropylene (PP) or more resistant to elevated temperatures segregation Ethylene Dichloride (PVDC) melt compounding, make the wide strip plastic sheet of the thick 20mm of 2mm.Finally by film laminator, according to the required antibacterial sheet length of every 500mL liquid, extrude and shear groove, be beneficial to quantitative use.
Using method
Antibacterial plastic sheet is quantitative by using method, this example is selected tap water, beverage (pouring out from original packing), the completed dish with soup juice, each 500mL is positioned over respectively in the test wide-necked bottle that the volume that cleaned with clear water is 500mL.According to adding 1 bacteria inhibition tablet in each bottle of bacteria inhibition tablet usage quantity, with sealed membrane, seal.Within 30 days, measure afterwards the bacteria content of above-mentioned three kinds of liquid, sterilization rate is 100%, and beverage and dish keep not muddy and corrupt sign substantially simultaneously.
Claims (6)
1. a long-acting bacteriostatic plastic sheet, it is characterized in that, the dispersed matrix material that has Trisilver phosphate-silicate glass in plastic sheet, wherein the mass ratio of Trisilver phosphate and silicate glass is 1:(50-100), the mass content of Trisilver phosphate-silicate glass complex body in long-acting bacteriostatic plastic sheet is 0.5%-0.8%.
2. according to a kind of long-acting bacteriostatic plastic sheet claimed in claim 1, it is characterized in that the preferred 2mm of thickness of long-acting bacteriostatic plastic sheet.
3. according to a kind of long-acting bacteriostatic plastic sheet claimed in claim 1, it is characterized in that, in the mode of antibacterial thin slice press flute and sign, inform the quantitative using method of user.
4. the method for preparation a kind of long-acting bacteriostatic plastic sheet claimed in claim 1, is characterized in that, comprises the following steps:
(1) sodium phosphate and the Silver Nitrate ratio reaction of 1:3 are in molar ratio prepared to Trisilver phosphate precipitation, quiet heavy abandoning supernatant, residue throw out is centrifugal, discards centrifuged supernatant; Centrifugal sediment cleans up with deionized water, last gained throw out dry for standby;
(2) choose normal silicate cleaning glass and dry, by Trisilver phosphate with silicate glass in 1:(50-100) ratio of (weight ratio) mixes, sintering makes it to be fused solution, is cooled to normal temperature formation vitreum; Use ball mill grinding vitreum, utilize ultrasonic vibration sieve series to become particle diameter to be not more than the composite powder of Trisilver phosphate-silicate glass of 30 μ m;
(3) composite powder of above-mentioned gained Trisilver phosphate-silicate glass is proportionally passed through to melt compounding, extruding cooling forming with plastic material masterbatch, make the antibacterial thin slice of sizing.
5. according to the method for claim 4, it is characterized in that, normal silicate glass in step (2) is directly substituted by proportioning with the raw material of producing silicate glass.
6. according to the method for claim 4, it is characterized in that the polyethylene that plastic material masterbatch refers to (PE), polypropylene (PP) or segregation Ethylene Dichloride (PVDC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310097886.1A CN104072841A (en) | 2013-03-25 | 2013-03-25 | Long-acting bacteriostatic plastic sheet and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310097886.1A CN104072841A (en) | 2013-03-25 | 2013-03-25 | Long-acting bacteriostatic plastic sheet and manufacturing method thereof |
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| CN104072841A true CN104072841A (en) | 2014-10-01 |
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| CN201310097886.1A Pending CN104072841A (en) | 2013-03-25 | 2013-03-25 | Long-acting bacteriostatic plastic sheet and manufacturing method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240578A (en) * | 1998-07-08 | 2000-01-12 | 中国科学院光电技术研究所 | Long-acting inorganic disinfectant and its preparing process and application |
| CN1354979A (en) * | 2000-11-29 | 2002-06-26 | 上海兰格科技发展有限公司 | Antibacterial, antimildew and antistaling film and its preparing process |
| CN1385072A (en) * | 2002-01-21 | 2002-12-18 | 太原理工大学 | Nano silicate antibiosis composition and process for preparing same |
| CN1552213A (en) * | 2003-12-18 | 2004-12-08 | 云南大学 | Composite inorganic antibacterial materials |
| CN1599702A (en) * | 2001-12-12 | 2005-03-23 | 舱壁玻璃公司 | Antimicrobial alkali-silicate glass ceramic and the use thereof |
| CN1604785A (en) * | 2001-12-12 | 2005-04-06 | 美利肯公司 | Thermoplastic articles exhibiting high surface-available silver |
| CN1729788A (en) * | 2005-08-12 | 2006-02-08 | 茅月敏 | Nanometer grade inorganic antibacterial material, its preparation method and application |
| CN101480194A (en) * | 2009-01-22 | 2009-07-15 | 河北工业大学 | Method for preparing antimicrobial material using nano calcium carbonate as substrate |
-
2013
- 2013-03-25 CN CN201310097886.1A patent/CN104072841A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240578A (en) * | 1998-07-08 | 2000-01-12 | 中国科学院光电技术研究所 | Long-acting inorganic disinfectant and its preparing process and application |
| CN1354979A (en) * | 2000-11-29 | 2002-06-26 | 上海兰格科技发展有限公司 | Antibacterial, antimildew and antistaling film and its preparing process |
| CN1599702A (en) * | 2001-12-12 | 2005-03-23 | 舱壁玻璃公司 | Antimicrobial alkali-silicate glass ceramic and the use thereof |
| CN1604785A (en) * | 2001-12-12 | 2005-04-06 | 美利肯公司 | Thermoplastic articles exhibiting high surface-available silver |
| CN1385072A (en) * | 2002-01-21 | 2002-12-18 | 太原理工大学 | Nano silicate antibiosis composition and process for preparing same |
| CN1552213A (en) * | 2003-12-18 | 2004-12-08 | 云南大学 | Composite inorganic antibacterial materials |
| CN1729788A (en) * | 2005-08-12 | 2006-02-08 | 茅月敏 | Nanometer grade inorganic antibacterial material, its preparation method and application |
| CN101480194A (en) * | 2009-01-22 | 2009-07-15 | 河北工业大学 | Method for preparing antimicrobial material using nano calcium carbonate as substrate |
Non-Patent Citations (4)
| Title |
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| 于文杰 等: "《塑料助剂与配方设计技术 第三版》", 31 July 2010, 化学工业出版社 * |
| 安言: "《食物相克与相宜大全集 超值白金版》", 31 May 2011, 中国华侨出版社 * |
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Application publication date: 20141001 |
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