CN1290719A - Antibiotic plastic and seal strip for refrigerator door - Google Patents
Antibiotic plastic and seal strip for refrigerator door Download PDFInfo
- Publication number
- CN1290719A CN1290719A CN 00133219 CN00133219A CN1290719A CN 1290719 A CN1290719 A CN 1290719A CN 00133219 CN00133219 CN 00133219 CN 00133219 A CN00133219 A CN 00133219A CN 1290719 A CN1290719 A CN 1290719A
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- Prior art keywords
- germicide
- antiseptic
- nano
- plastics
- antibiotic plastic
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Abstract
The improved plastic has 0.5-30 % inorganic nanometer antibiotic carry silver ions. The nanometer antibiotic makes the plastic have high bactericidal activity and capacity of discomposing greasy dirt on the surface of plastic under the illumination of light.
Description
The present invention relates to a kind of plastics with sterilization anti-microbial effect, is the sterilant of carrier about adding with the inorganic nano in plastics particularly, is particularly useful for seal strip for refrigerator door.
Plastic component such as household electrical appliance such as refrigerator, washing machine, air-conditioning, computer, mobile phone, microwave oven, automobile, Chang Yin are exposed to air and surface contamination and grow in a large number to the deleterious malignant bacteria of HUMAN HEALTH.Frequently contact in the use with the people, will be to people's the healthy gasket that brings threat, especially refrigerator, because of it is crape folding shape, the bacterium that grows nonparasitically upon another plant on it is difficult to obtain removing, not only dirty human body, but also can pollute storage food.People adopt usually and add sterilant composition antibiotic plastic in plastics for effectively preventing and kill off and kill the bacterium that frosting is grown nonparasitically upon another plant.The zeolite micro mist that the more employing Chemical bond of sterilant power is stronger carries attached metal bacteriocidal substance as carrier, as described in Chinese patent 98124542, makes about 30 microns antibiotic micro mist by add zeolite in the sterilization metal salt solution; Adopt the method for plastic component dipping sterilant in addition, disclose a kind of employing inorganic silicate micron fine powder material (as the carrier of carrier band antiseptic-germicide) as Chinese patent 92114467 and carried out blend with the former powder of plastic cement and make goods, then it is immersed in and contains Ag
+, Cu
++, Zn
++, NH
4 +, Ni
++Carry out the soak at room temperature activation treatment in one or two or more kinds solion, obtain having the plasthetics of long-acting sterilization.Because the inorganic materials fineness of carrier band sterilant is thin inadequately, not only influenced the fully uniform of metal sterilization particle, and precious metal sterilization particle carrier band amount is many, can not effectively give full play to the effect of sterilization metallics; Secondly, carrier itself does not generally have germicidal action, thereby influences sterilization effect, and therefore still having is worth improved place.
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of sterilant carrier band amount few, and can give full play to the effect of sterilization metal, the long acting antibiotic plastics that sterilization effect is good.
Another object of the present invention is to provide a kind of antimicrobial refrigerator gasket, thereby effectively reduce carrying disease germs of seal strip for refrigerator door, effectively avoid polluting foodstuff storing.
The present invention's first purpose realizes that main the improvement is the sterilant that adds by inorganic nano carrier band silver ions in plastics.Specifically, antibiotic plastic of the present invention comprises plastics parent and antiseptic-germicide, it is characterized in that said antiseptic-germicide be 0.5-30% (WT) by inorganic nano carrier band silver ion disinfectant.Because sterilant of the present invention adopts inorganic nano as carrier, thereby the specific surface area of carrier is bigger, silver ion disinfectant is more evenly distributed on carrier, thereby has improved sterilization effect.Plastics of the present invention do not have overcritical especially, can be various plastics, for example ABS, PVC, PE, PC, PS, HIPS etc.The sterilant add-on prepares according to antibiotic plastic, it is generally acknowledged that 0.5-30% just is enough to have the antibiotic and sterilizing effect, the add-on height can be made into the antimicrobial plastic master batch, and for example 5-10% and plastic blend are made antibacterial plastic product with certain proportioning (deciding on antiseptic-germicide content) with antibacterial matrices again; Add-on is low then can directly make antibacterial plastic product.The present invention relatively thinks through test, to make mother particles of antibacterial plastics earlier for well, helps the few antiseptic-germicide of add-on uniform distribution in plastics so especially.
The said antiseptic-germicide inorganic nano of the present invention carrier, the preferred nano titanium oxide that adopts, photodegradation by nano titanium oxide, the material that can make pickup become gas or be easy to be wiped at oxidizing hydrocarbons such as the greasy dirt of frosting, bacteriums, play the Synergistic sterilizing effect, form the high reactivity sterilant.Silver ions carrier band amount is that the 0.5-10% of antiseptic-germicide just is enough to show antibacterial effect in the antiseptic-germicide, it is bigger that addition is crossed expensive increase, therefore the present invention also can add metal sterilization ions such as some copper, zinc for reducing cost and improving sterilization effect in the antiseptic-germicide, to strengthen sterilization effect.Metal sterilization ion of the present invention especially with nanoparticle for well, sterilization effect is had more obviously improve.
Sterilant nano metal particles of the present invention and carrier particle can adopt common nanometer preparation method to obtain, as metal nanoparticle, and available hydrogen electric arc or vapour deposition process preparation; Nano titania can adopt as preparing with dispersion method or tetrabutyl titanate method in the metatitanic acid.Make nano-disinfection metallics and carrier particle respectively, be mounted on nano-carrier such as the titanium dioxide by physical method as 0.5-10% (WT) active nano silver particles by a certain percentage again, make the metal nanoparticle sterilant that has substrate.Nano-disinfection agent of the present invention can also be adopted general chemical preparation method, and nano metal particles is adopted as immersed method, ion exchange method, absorption method, alkoxide process etc., and the nano-disinfection particle is distributed on the inorganic nano carrier substrates.Inorganic nano carrier of the present invention except that titanium dioxide, can also be as aluminum oxide, silicon oxide, magnesium oxide, zeolite etc., but is excellent with titanium dioxide.
For antiseptic-germicide can evenly effectively be disperseed in plastics, to give full play to effective germicidal action of antiseptic-germicide, after making nano antibacterial agent, go as adding to add in the plastics again after the processing such as coupling agent, fatty acid modifying, surface grafting superpolymer, coating earlier through surface modification treatment.
The preparation of antibiotic plastic will be made master batch or goods by the general-purpose plastics processing means after the antiseptic-germicide of surface modification treatment and plastics micro mist mix.
Another purpose of the present invention realizes, is the sterilant by inorganic nano carrier band silver ions that adds 0.5-30% in the PVC plastics of making seal strip for refrigerator door, makes the gasket of band sterilant, is used in refrigerator door and seals up the bacterium that can effectively kill appendix.
Below illustrate the present invention.
Embodiment 1: making with the nano titanium oxide with the liquid phase coprecipitation method is that the carrier silver content is 0.5-10%, reaches cupric, zinc nano antibacterial agent.After surface modification treatment, get nano-disinfection agent 4Kg, with the PVC powder 10Kg that the suspension liquid method is produced, plasticising material stuff 5Kg puts into single screw rod or twin screw extruder and extrudes and make mother particles of antibacterial plastics after high-speed mixer mixes.PVC powder with 300Kg is mixed and made into the antimicrobial seal strip for refrigerator door again.
Embodiment 2:PVC masterbatch 95%, nano TiO 2 carrying silver sterilant 5% is by directly making antibacterial plastic product after embodiment 1 blending dispersion.
The present invention is owing to adopt nano-disinfection metallics and carrier, and especially nano TiO 2 carrying body, thereby sterilant demonstrates higher fungicidal activity.Antibiotic plastic of the present invention reflects and suppresses preferably and germicidal action through inoculation intestinal bacteria, streptococcus aureus, flavacin, according to condition, is 0.05% to its minimal bactericidal concentration of pathogenic escherichia coli unglazed; Under sun exposure, 0.02% just shows sterilization effect preferably.The goods that are injection molded into this plastic master batch have stronger sterilization, antibacterial effect, can kill automatically and decompose easy-clear polluting at its surperficial bacterium and greasy dirt.Antibiotic plastic of the present invention especially is fit to household electrical appliance and the plastics of non-use on food, for example seal strip for refrigerator door, the refrigerator drawer etc. that system and people often connect.
For convenience of description, the said sterilization of the present invention, antibiotic be synonym.
Claims (10)
1, a kind of antibiotic plastic comprises plastics parent and antiseptic-germicide, it is characterized in that said antiseptic-germicide is the antiseptic-germicide by inorganic nano carrier band silver ions of 0.5-30%.
2,, it is characterized in that said inorganic nano is a Nano titanium dioxide according to the described antibiotic plastic of claim 1.
3,, it is characterized in that silver ions carrier band amount is 0.5-10% in the said antiseptic-germicide according to the described antibiotic plastic of claim 1.
4,, it is characterized in that also containing in the said antiseptic-germicide cupric ion and/or zine ion according to the described antibiotic plastic of claim 1.
5,, it is characterized in that said nano antibacterial agent mixes with plastics mutually after surface modification treatment according to claim 1,2,3 or 4 described antibiotic plastics.
6,, it is characterized in that said antibiotic plastic is a mother particles of antibacterial plastics according to the described antibiotic plastic of claim 1.
7, a kind of door of refrigerator strip of paper used for sealing is characterized in that being added with in the said gasket sterilant by inorganic nano carrier band silver ions of 0.5-30%.
8,, it is characterized in that said inorganic nano is a Nano titanium dioxide according to the described door of refrigerator strip of paper used for sealing of claim 7.
9,, it is characterized in that silver ions carrier band amount is 0.5-10% in the said microbial inoculum according to the described door of refrigerator strip of paper used for sealing of claim 7.
10,, it is characterized in that also containing in the said antiseptic-germicide cupric ion and/or zine ion according to the described door of refrigerator strip of paper used for sealing of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00133219 CN1290719A (en) | 2000-11-13 | 2000-11-13 | Antibiotic plastic and seal strip for refrigerator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00133219 CN1290719A (en) | 2000-11-13 | 2000-11-13 | Antibiotic plastic and seal strip for refrigerator door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1290719A true CN1290719A (en) | 2001-04-11 |
Family
ID=4595563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00133219 Pending CN1290719A (en) | 2000-11-13 | 2000-11-13 | Antibiotic plastic and seal strip for refrigerator door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1290719A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402390C (en) * | 2004-06-09 | 2008-07-16 | 东莞市金富实业有限公司 | Long-acting antibiosis plastic container cover and its mfg. process |
| CN100402389C (en) * | 2004-06-09 | 2008-07-16 | 东莞市金富实业有限公司 | Long effect antibacterial plastic container and its manufacturing method |
| CN100408951C (en) * | 2003-04-02 | 2008-08-06 | Lg电子株式会社 | Antibiotic method for parts of refrigerator using antibiotic substance |
| CN102675817A (en) * | 2012-05-31 | 2012-09-19 | 四川长虹电器股份有限公司 | Antibacterial plastic for household appliances and preparation method thereof |
| CN1836140B (en) * | 2003-08-11 | 2012-09-26 | Bsh博世和西门子家用器具有限公司 | Refrigerator with integrated water supply |
| CN110041551A (en) * | 2019-05-09 | 2019-07-23 | 长虹美菱股份有限公司 | A kind of antibacterial gasket manufacture craft |
| CN111442594A (en) * | 2020-03-06 | 2020-07-24 | 惠而浦（中国）股份有限公司 | Humidity-controllable refrigerator |
| CN111879054A (en) * | 2020-07-02 | 2020-11-03 | 珠海格力电器股份有限公司 | Refrigerator with a door |
-
2000
- 2000-11-13 CN CN 00133219 patent/CN1290719A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408951C (en) * | 2003-04-02 | 2008-08-06 | Lg电子株式会社 | Antibiotic method for parts of refrigerator using antibiotic substance |
| AU2004225615B2 (en) * | 2003-04-02 | 2009-12-17 | Lg Electronics Inc. | Antibiotic method for parts of refrigerator using antibiotic substance |
| US7781497B2 (en) | 2003-04-02 | 2010-08-24 | Lg Electronics Inc. | Antibiotic method for parts of refrigerator using antibiotic substance |
| CN1836140B (en) * | 2003-08-11 | 2012-09-26 | Bsh博世和西门子家用器具有限公司 | Refrigerator with integrated water supply |
| CN100402390C (en) * | 2004-06-09 | 2008-07-16 | 东莞市金富实业有限公司 | Long-acting antibiosis plastic container cover and its mfg. process |
| CN100402389C (en) * | 2004-06-09 | 2008-07-16 | 东莞市金富实业有限公司 | Long effect antibacterial plastic container and its manufacturing method |
| CN102675817A (en) * | 2012-05-31 | 2012-09-19 | 四川长虹电器股份有限公司 | Antibacterial plastic for household appliances and preparation method thereof |
| CN102675817B (en) * | 2012-05-31 | 2015-06-03 | 四川长虹电器股份有限公司 | Antibacterial plastic for household appliances and preparation method thereof |
| CN110041551A (en) * | 2019-05-09 | 2019-07-23 | 长虹美菱股份有限公司 | A kind of antibacterial gasket manufacture craft |
| CN111442594A (en) * | 2020-03-06 | 2020-07-24 | 惠而浦（中国）股份有限公司 | Humidity-controllable refrigerator |
| CN111879054A (en) * | 2020-07-02 | 2020-11-03 | 珠海格力电器股份有限公司 | Refrigerator with a door |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |