CN103113693B - Nano-silver PVC (polyvinyl chloride) lamellar membrane and preparation method thereof - Google Patents
Nano-silver PVC (polyvinyl chloride) lamellar membrane and preparation method thereof Download PDFInfo
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- CN103113693B CN103113693B CN201310039466.8A CN201310039466A CN103113693B CN 103113693 B CN103113693 B CN 103113693B CN 201310039466 A CN201310039466 A CN 201310039466A CN 103113693 B CN103113693 B CN 103113693B
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Abstract
The invention provides a nano-silver PVC (polyvinyl chloride) lamellar membrane and a preparation method of the lamellar membrane; the nano-silver PVC lamellar membrane is prepared by fully mixing nano-silver with each component of PVC lamellar membrane, mixing and modifying, and then carrying out the processes of rubber milling, rolling and the like; the nano-silver PVC lamellar membrane has excellent sterilizing property, and thus the nano-silver PVC lamellar membrane can be widely used for industries such as medical treatment, food package and the like conveniently; in addition, the invention further discloses a method for preparing the nano-silver PVC lamellar membrane with two-layer or multi-layer composite structure; by adopting of the method, the practicability of the nano-silver PVC lamellar membrane can be improved and the application scope is extended.
Description
Technical field
The present invention relates to anti-biotic material field, refer to a kind of nanometer silver PVC sheet film and preparation method thereof especially.
Background technology
PVC and Polyvinylchlorid, main component is polyvinyl chloride, PVC sheet film is widely used in the industries such as building materials, packaging and medicine, there is the reason that very important at 2, the first is due to the performance of PVC sheet film uniqueness, comprise rainproof, fire-resistant, antistatic, easy-formation etc., it two is features of the low input high yield of PVC sheet film.In view of SARS virus, bird flu, H1N1virus global spread wantonly in recent years, and number of the infected constantly increases, by and promoted the research and development of anti-biotic material in fields such as military supplies, medical treatment, daily, food product pack and fast development.Equally, the antibacterial functionalized of composite membrane sheet material is melted for plastic hot, be not only the performance need of material own, and the needs of market development especially, because traditional PVC sheet film is without antibacterial effect, therefore, we need a kind of can the PVC sheet film of antibacterial even sterilization to meet the requirement in market.
Nanometer silver particle diameter is accomplished nano level argent simple substance, and it is as the natural antibacterial agent of the high-tech functional materials of a new generation, and its biocidal efficacies has following feature:
A. broad-spectrum antimicrobial: nano-Ag particles directly enters thalline and oxygen metabolism enzyme (-SH) combines, and makes the unique mechanism of action that thalline is choked to death, can contact the microorganism such as most of bacteriums, fungi, mould, spore killed with it.
B. strong bactericidal: nano-Ag particles just can kill pathogenic bacterium rapidly at low concentrations.
C. perviousness is strong: nano-Ag particles has the fungus-caused tissue infection compared with depths of superpower perviousness and all has good germicidal action.
D. lastingly antibacterial, reparative regeneration, safety non-toxic, has no drug resistance.
Nanometer silver has so excellent bactericidal property, therefore should apply it to larger field, for people provide a cleaner environment.
Summary of the invention
The present invention proposes a kind of nanometer silver PVC sheet film and preparation method thereof, has the bactericidal property that PVC sheet film widely uses performance and nanometer silver, expands use range greatly, the practicality of the PVC sheet film of increase.
Technical scheme of the present invention is achieved in that a kind of nanometer silver PVC sheet film, comprises each component of following weight part:
The choosing of the concrete content of each component above, carries out according to the performance to product, demand.
Further, described softening agent is phthalic ester plasticizer, comprises dimixo-octyl phthalate, diisononyl phthalate etc., mainly regulates the toughness of described nanometer silver PVC sheet film.
Further, described stablizer is powdery or liquid composite stabilizing agent, the selection of the stablizer of this different states, mainly be the demand to product, if want to obtain a kind of transparency good nanometer silver PVC sheet film, so just select liquid composite stabilizing agent, or to transparency not requirement, then powdery stabilizer can be selected, select which kind of stablizer, in other performances, much difference be there is no for described nanometer silver PVC sheet film, and the reason of adding described stablizer in described nanometer silver PVC sheet film is, polyvinyl chloride resin is for thermo-responsive, easy generation thermolysis, therefore need described stablizer to slow down reaction, maintain chemical equilibrium, in the present invention, conventional described stablizer has one package stabilizer, metal soap stablizer etc., such as Ba/Zn or Ca/Zn, wherein Ba/Zn is nontoxic, without sulfide staining, be suitable for very much the making of the described nanometer silver PVC sheet film of transparent container.
Further, described nanometer silver PVC sheet film flame retardancy given by described fire retardant, and fire retardant described in the present invention adopts inorganic combustion inhibitor, comprises as antimonous oxide, aluminium hydroxide etc.
Further, described static inhibitor is quaternary ammonium salt static inhibitor, described static inhibitor can reduce described nanometer silver PVC sheet film volume resistance, prevent electrostatic from accumulating.
Further, described filler is mineral filler, comprises as calcium carbonate, barium sulfate or wollastonite etc.
Further, described binding agent is isocyanic ester, and the kind of described mildew-resistant auxiliary agent has a lot, and such as antibacterial anti-mildew becomes auxiliary agent, is mainly used for the antimildew and antibacterial performance improving described nanometer silver PVC sheet film.
The preparation method of above-mentioned nanometer silver PVC sheet film, comprises following workshop section:
A. ingredient station: comprise the batching operation and conveying operation of carrying out according to each component described above and content thereof;
B. plastify workshop section: comprise carry out preparing burden operation of kneading, banburying operation, open refining operation, planet and extrude operation and calendering formation operation;
C. pressing section: comprise product after calendering formation is carried out deflect from operation, refrigerating work procedure, trimming operation, meter code operation and winding process;
Further, in order to expand use and product radiation scope, meet the more market requirement and application target, we can also comprise following workshop section:
D. compound workshop section: comprise base material and unreel operation, preheating procedure and introduce compound working procedure, described compound workshop section carries out compound by the component after introducing compound working procedure and described calendering formation operation, then continues to enter pressing section.
Described base material can be fibre product, paper, metal, plastics etc., thus obtains the product that performance is more insuperior on the one hand, such as adopts fibre product as base material, can improve the anti-pull intensity of described nanometer silver PVC sheet film greatly, more durable in use.
Equally, for the described nanometer silver PVC sheet film of the structure composite of some two layers or multilayer, we can carry out compound by through two pieces of formative stage or polylith product, thus obtain the described nanometer silver PVC sheet film of two layers or multilayer, obtain the product that a performance is more excellent, adapt to wider environment for use.
Each operation is the known technology of this administrative staff above, therefore with reference to prior art, and for the product that not demand is different, each operation may slightly difference.
Beneficial effect of the present invention is: the present invention is by blend modification technology and adding technology, nanometer silver and the component of preparation PVC film are carried out blended, and adopt rolling process technique, obtain described nanometer silver PVC sheet film, efficient by nanometer silver of described nanometer silver PVC sheet film, the bactericidal property of wide spectrum is applied in PVC film, described nanometer silver PVC sheet film is made to have good sterilization effect, thus can medical treatment be applied it to, the fields such as food product pack, use safer, simultaneously, the invention also discloses a kind of compound new technology route be applicable to two layers or multilayered structure, also make the product of described nanometer silver PVC sheet film more diversified, also the use range of described nanometer silver PVC sheet film is just expanded, practicality is stronger.
Embodiment
For understanding the present invention better; below by following examples, elaboration concrete is further done to the present invention; but unintelligible is limitation of the invention; for some nonessential improvement and adjustment that those skilled in the art does according to foregoing invention content, be also considered as dropping in protection scope of the present invention.
Embodiment 1
We take each component of following weight part:
Then following operation is carried out:
After the above-mentioned each component taken is mixed, then entered in high-speed mixer by delivery system and mediate;
After kneading, component is sent as carried out banburying in Banbury mixer (internal rubber mixer);
Component after banburying delivers in mill (opening rubber mixing machine) carries out out refining;
Open the component after refining enter planetary extruder again after planet extrude;
The component that planet is extruded is undertaken rolling film in blocks by rolling press
To rolling, the sheet film deflects from, cools, rolling, obtains finished product 1
Embodiment 2
We take each component of following weight part:
Then we operate the operation steps that above-mentioned each component is carried out in same embodiment 1, obtain finished product 2.
Embodiment 3
We take each component of following weight part:
Then we operate the operation steps that above-mentioned each component is carried out in same embodiment 1, and its difference is, in embodiment 3, also comprise compound workshop section, it comprises the following steps:
A, choose cloth and carry out unreeling (according to the actual needs, also can be other base materials) as base material;
B, then preheating is carried out to cloth substrate;
Composite for base fabric is introduced after c, preheating;
D, now to fit with rolling the component in step 5;
E, then continue same step 6 and operate, carry out deflecting from, cool, rolling, obtain finished product 3.
Embodiment 4
According to embodiment 1 and embodiment 2, we carry out the operation of embodiment 4:
Embodiment 1 and the finished product implementing 2 are undertaken fit (according to the situation of reality, glue also can be adopted to bond) by rolling press by we, and obtain finished product 4, finished product 4 is the nanometer silver PVC sheet film of two layers of composite structure.
Then, we test the finished product obtained, and its performance as PVC material still retains, and newly-increased bactericidal property, then detected by standard testing, test as follows:
We get finished product 1,2,3 and 4, and in addition, we also have chosen the product of company's traditional antibiotic plastic composite sheet film in the past as sample 5, and common plastics composite sheet film contrasts as sample 6, chooses vinylchlorid disk as blank.
Test bacterial classification and reference method: intestinal bacteria (ATCC25922), QB/T2591-2003/ film applicator coating result is:
| Sample number | Antibiotic rate/% | Sample number | Antibiotic rate/% |
| Finished product 1 | 99.9 | Finished product 4 | 99.8 |
| Finished product 2 | 99.7 | Sample 5 | 10.1 |
| Finished product 3 | 99.9 | Sample 6 | 0 |
Experiment shows: the antibacterial of nanometer silver PVC sheet film is apparently higher than traditional antibiotic plastic composite membrane sheet material, and traditional antibiotic packaging material antibacterial effect only has about 15%, and its antibacterial ability of PVC film sheet material that with the addition of nanometer silver reaches 99.More than 7%.
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 (3)
1. a nanometer silver PVC sheet film, is characterized in that, comprises each component of following weight part:
Described softening agent is phthalic ester plasticizer;
Described stablizer is powdery or liquid composite stabilizing agent;
Described fire retardant is inorganic combustion inhibitor;
Described static inhibitor is quaternary ammonium salt static inhibitor;
Described filler is mineral filler;
Described binding agent is isocyanic ester.
2. the preparation method of nanometer silver PVC sheet film as described in claim 1, is characterized in that, comprise following workshop section:
A. ingredient station: comprise the batching operation and conveying operation of carrying out according to component each described in claim 1 and content thereof;
B. plastify workshop section: comprise carry out preparing burden operation of kneading, banburying operation, open refining operation, planet and extrude operation and calendering formation operation;
C. pressing section: comprise product after calendering formation is carried out deflect from operation, refrigerating work procedure, trimming operation, meter code operation and winding process.
3. the preparation method of nanometer silver PVC sheet film as described in claim 2, is characterized in that, also comprise following workshop section:
D. compound workshop section: comprise base material and unreel operation, preheating procedure and introduce compound working procedure, described compound workshop section carries out compound by the component after introducing compound working procedure and described calendering formation operation, then continues to enter pressing section.
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| CN201310039466.8A CN103113693B (en) | 2013-01-31 | 2013-01-31 | Nano-silver PVC (polyvinyl chloride) lamellar membrane and preparation method thereof |
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| CN201310039466.8A CN103113693B (en) | 2013-01-31 | 2013-01-31 | Nano-silver PVC (polyvinyl chloride) lamellar membrane and preparation method thereof |
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| CN103113693B true CN103113693B (en) | 2015-07-08 |
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Families Citing this family (10)
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| CN103819846A (en) * | 2014-02-26 | 2014-05-28 | 东阳市通达塑胶有限公司 | Automobile PVC floor formula and floor processing technology using same |
| CN104961992B (en) * | 2015-05-21 | 2017-08-25 | 青岛科凯达橡塑有限公司 | A kind of medical treatment and Aero-Space antibiotic conductive heat conduction Corvic material and its preparation method and application |
| CN105440476A (en) * | 2015-11-29 | 2016-03-30 | 惠州卫生职业技术学院 | Preparation method of plastic film |
| CN106519484A (en) * | 2016-10-23 | 2017-03-22 | 庾丽祥 | Wear-resistant modified PVC-resin nano environment-friendly packaging sheet material and preparation method |
| CN106515055A (en) * | 2016-11-01 | 2017-03-22 | 长兴勇强塑胶有限公司 | Preparation method of inflation pool with permanent antibacterial function |
| CN107351302A (en) * | 2017-06-19 | 2017-11-17 | 江苏大海塑料股份有限公司 | A kind of production technology of the tasteless low low temperature resistant environmentally friendly raincoat film of volatilization |
| CN107189277A (en) * | 2017-07-14 | 2017-09-22 | 芜湖市三山区绿色食品产业协会 | Mould proof polyvinyl chloride/aluminium foil composite package film and preparation method thereof |
| CN110181921B (en) * | 2018-02-23 | 2021-03-30 | 农宝企业有限公司 | Nano silver wire structure |
| CN110920189A (en) * | 2019-11-14 | 2020-03-27 | 海宁帝龙永孚新材料有限公司 | Environment-friendly mildew-proof antibacterial PVC decorative film and composite equipment thereof |
| CN111117110B (en) * | 2019-12-26 | 2021-12-14 | 闽江学院 | Preparation method of PVC film with wear resistance and barrier property and product |
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