CN103012963A - Novel nano Ag/TiO2 modified antibacterial and flame resistant polypropylene plastic - Google Patents
Novel nano Ag/TiO2 modified antibacterial and flame resistant polypropylene plastic Download PDFInfo
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- CN103012963A CN103012963A CN2012104454593A CN201210445459A CN103012963A CN 103012963 A CN103012963 A CN 103012963A CN 2012104454593 A CN2012104454593 A CN 2012104454593A CN 201210445459 A CN201210445459 A CN 201210445459A CN 103012963 A CN103012963 A CN 103012963A
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Abstract
The invention discloses a novel nano Ag/TiO2 modified antibacterial and flame resistant polypropylene plastic, comprising the following components in parts by weight: 100 parts of co-polypropylene, 2-5 parts of nano Ag, 1-2 parts of nano TiO2, 10-25 parts of decabromodiphenyl ether, 1-2 parts of dispersing agent and 1-2 parts of antioxidant. By adding nanoparticles, antibacterial property of polyethylene material is improved, and flame retardant property of the material is effectively improved by adding a halogen flame retardant.
Description
Technical field
The present invention relates to a kind of acrylic plastering, particularly a kind of employing nanometer Ag/TiO
2The acrylic plastering with antibiotic and flame retardant properties of modification.
Background technology
Entered since 21 century, plastics have become a requisite part in the daily life, it is widely used in each details of our life, such as adopted in a large number plastics in the middle of the various household electrical appliance (phone, washing machine, computer, electric switch etc.) of the daily contact of people.Owing to the impact of the reasons such as environmental pollution, the surface of these plastics of the daily contact of these people tends to a large amount of bacteriums on the other hand, becomes one by one bacterial contamination source and pathophoresis source.According to statistics, nearly 1,700 ten thousand people cause because of bacterial infection in the annual death toll in the whole world.Develop so and study the novel plastic goods with anti-microbial property, for the living environment of improving people, reduce the aspects such as disease incident, to protect mankind be healthy and all be of great practical significance.
Antibiotic plastic is that a class has antibacterial and type material bactericidal property, refers to add antiseptic-germicide in plastics, makes plastics itself have biocidal property, will be bonded within a certain period of time bacterium on the plastics and kill or suppress its breeding.Prepare the general method of adding antiseptic-germicide or antibacterial plastic concentrate in the resin that adopts of antibiotic plastic.Antibacterial plastic concentrate is the high density master batch that is processed into by antiseptic-germicide.Antibacterial plastic concentrate added in the plastics process.Be conducive to the dispersion of antiseptic-germicide, can give full play to its antibacterial effect.
Plastics mainly are divided into organic and inorganic antiseptic with antiseptic-germicide, and the inorganic-organic composite antibiotic agent of development in recent years.The mineral-type antiseptic-germicide mostly is metal ion class antiseptic-germicide, is comprised of carrier and antimicrobial component.This antiseptic-germicide utilizes the methods such as ion-exchange, absorption, precipitation that metal ion is attached on the carriers such as zeolite, titanium dioxide, pottery, phosphatic rock.Antimicrobial component is silver ions, zine ion, cupric ion etc., wherein because silver-ion antibiotic power is the strongest, so use more.But its chemical property is lived, and easily changes brown silver suboxide into or is reduced to the simple substance silver of black through ultraviolet catalytic, has restricted it in more multiextent application.
Inorganic antiseptic can directly add in the resin, can make first antibacterial plastic concentrate again.This antiseptic-germicide heat resisting temperature can reach more than 270 ℃, can be used in the plastics such as PE, PP, PVC, PS, ABS polyester.That inorganic antiseptic has is long-acting, do not produce the advantages such as resistance, accounts for to have great advantage in the development of plastics with antiseptic-germicide.Sterilization and the antifungal mechanism of inorganic antiseptic be, in the inorganic antiseptic heavy metal ion easily and protein bound, so when the microorganism that is grown in frosting touches antimicrobial component in the plastics, metal ion strong adsorption bacterium.Owing to the combination of enzyme in metal ion and the bacterial cell, destroyed space structure and the activity of enzyme, the metabolism of microorganism can not be carried out, thereby play sterilization and antibacterial effect.
Organic antibacterial agent comprises natural and synthetic two large series.Natural antibacterial agent mainly from animals and plants refining refinement form, such as the extract of mountain Yu, Meng Zongzhu, peppermint, Lemon Leaf etc., the chitosan that refines in crab and the shrimp etc.Organic antibacterial agent sterilization speed is fast, and effectively killing of having presses down mould, but its security except use relatively poor, also have the problems such as poor heat resistance, facile hydrolysis, work-ing life be short.
Another kind of antiseptic-germicide is the inorganic-organic composite antibiotic agent, and it utilizes the interlayer insertion reaction take layered metal oxide as parent, and silver complex or other organic antibacterial agent are inserted interlayer.Layered inorganic-organic antibacterial agent except avoided painted bad, have also that good stability, life-span are long, the antimicrobial efficiency high.
Nano anti-biotic material is added among the plastics, makes nano antiseptic plastic, makes plastics except keeping original performance, also has excellent nano material characteristic and antibacterial, has broad application prospects.Nano antiseptic plastic is compared with common antibiotic plastic, have ageing-resistant, high temperature resistant, high comprehensive performance, the advantage such as germ resistance is stable, and is permanent has enlarged range of application, has improved application level.
But, utilize inorganic antiseptic all to need to solve the compatibility problem of inorganic nano-particle and plastics, although have much about the nano particle surface modifying method at present, can solve to a certain extent the consistency of inorganic nano-particle and plastics.But in fact the surface treatment of inorganic nano-particle need to take a long time and fund, and is difficult to carry out scale operation.And at present general organic antibacterial agent is low owing to decomposition temperature, and the decomposition possibility is large in the course of processing, may pollute environment.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, provide a kind of novel nano modification to have anti-microbial property, have simultaneously the acrylic plastering of flame retardant resistance concurrently.
In order to realize above goal of the invention, the present invention by the following technical solutions: a kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 2～5 parts of nanometer Ag; Nano-TiO
21～2 part; 10～25 parts of decabromodiphynly oxides; 1～2 part of dispersion agent; 1～2 part in oxidation inhibitor.
Described nano-TiO
2Particle diameter is 10～20nm, and described nanometer Ag particle diameter is 20～30nm.
Described dispersion agent is whiteruss.
Described oxidation inhibitor is 1010 or 168.
Nano material because of it has that particle diameter is little, specific surface area is large, the particle micropore mainly with and the characteristic such as high adsorption capacity, the suspension stability of raising coating and the aspects such as bonding force between coating and the base material there are obvious effect, can significantly improve compactness, surface finish and the abrasion resistance of filming; Utilize the photocatalysis characteristic of nano material, can catalyzed degradation some harmful organic compound, suppress the breeding growth of various mushrooms, play antibiotic and effect sterilization.Nano-TiO
2, nano-ZnO, nanometer Ag O and nano-MgO the experiment proved that the effect that all has stronger antibiotic and sterilization.
Because polypropylene is a kind of superpolymer of CH structure, contains C up to 90%, is a kind of inflammable superpolymer, therefore need to improve polyacrylic flame retardant properties by adding fire retardant.The halogenated flame retardant mechanism of action is that fire retardant pyrolytic decomposition and combustible species react and generate free radical X, the HX that produces is non-flammable gases, play the cover surface layer, make the thermooxidizing of combustionmaterial be difficult to carry out, X can catch the combustion activity free radical as trapping agent, and can reduce HO concentration, the combustionvelocity that slows down, suppress flame spread, interrupt chemical reaction, until fray-out of flame.
The present invention has following beneficial effect: by adding nanoparticle, improved the anti-microbial property of polypropylene material, and by adding halogenated flame retardant, effectively improved the flame retardant properties of material.
Embodiment
The present invention is further illustrated below by embodiment.
Embodiment one:
A kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 2 parts of nanometer Ag; Nano-TiO
21 part; 15 parts of decabromodiphynly oxides; 1 part in dispersant liq paraffin; 2 parts of antioxidant 1010s.Nano-TiO
2Particle diameter is 10～20nm, and the nanometer Ag particle diameter is 20～30nm.
Embodiment two:
A kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 3 parts of nanometer Ag; Nano-TiO
22 parts; 10 parts of decabromodiphynly oxides; 2 parts in dispersant liq paraffin; 1 part of irgasfos 168.Nano-TiO
2Particle diameter is 10～20nm, and the nanometer Ag particle diameter is 20～30nm.
Embodiment three:
A kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 5 parts of nanometer Ag; Nano-TiO
22 parts; 20 parts of decabromodiphynly oxides; 2 parts in dispersant liq paraffin; 2 parts of antioxidant 1010s.Nano-TiO
2Particle diameter is 10～20nm, and the nanometer Ag particle diameter is 20～30nm.
Embodiment four:
A kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 4 parts of nanometer Ag; Nano-TiO
21 part; 25 parts of decabromodiphynly oxides; 2 parts in dispersant liq paraffin; 1 part of irgasfos 168.Nano-TiO
2Particle diameter is 10～20nm, and the nanometer Ag particle diameter is 20～30nm.
Embodiment five:
A kind of novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, is comprised of the component of following mass parts: 100 parts of Co-polypropylene; 5 parts of nanometer Ag; Nano-TiO
22 parts; 15 parts of decabromodiphynly oxides; 1 part in dispersant liq paraffin; 2 parts of antioxidant 1010s.Nano-TiO
2Particle diameter is 10～20nm, and the nanometer Ag particle diameter is 20～30nm.
Behind above weight proportion preparation raw material, Co-polypropylene, decabromodiphynly oxide, dispersion agent and oxidation inhibitor are mixed in high-speed mixer, slowly add several times again nanometer Ag and nano-TiO
2Mixture continues to mix 5h; Mixture adds twin screw extruder, and in 170～220 ℃ of lower extruding pelletizations, pellet is at 90 ℃ of oven dry 10h.
The anti-microbial property of material carries out with reference to the step of GB/T2591-2003, mechanical property according to GB1040-93 test tensile property, GB9341-88 test bending property, GB/T1043-93 tests shock strength, combustionproperty is carried out with reference to the step of GB/T2406-93.
Test result shows, by prepared acrylic plastering of the present invention, all reaches more than 95% to staphylococcus aureus and colibacillary antibiotic rate; The mechanical property of material does not reduce simultaneously, and tensile strength, flexural strength and shock strength also rise to some extent; And the flame retardant properties of material is better.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. novel nano Ag/TiO
2Modification is antibiotic, flame-retardant polypropylene plastics, it is characterized in that being comprised of the component of following mass parts: 100 parts of Co-polypropylene; 2～5 parts of nanometer Ag; Nano-TiO
21～2 part; 10～25 parts of decabromodiphynly oxides; 1～2 part of dispersion agent; 1～2 part in oxidation inhibitor.
2. novel nano Ag/TiO according to claim 1
2Modification is antibiotic, flame-retardant polypropylene plastics, it is characterized in that: described nano-TiO
2Particle diameter is 10～20nm, and described nanometer Ag particle diameter is 20～30nm.
3. novel nano Ag/TiO according to claim 1
2Modification is antibiotic, flame-retardant polypropylene plastics, it is characterized in that: described dispersion agent is whiteruss.
4. novel nano Ag/TiO according to claim 1
2Modification is antibiotic, flame-retardant polypropylene plastics, it is characterized in that: described oxidation inhibitor is 1010 or 168.
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| CN2012104454593A CN103012963A (en) | 2012-11-09 | 2012-11-09 | Novel nano Ag/TiO2 modified antibacterial and flame resistant polypropylene plastic |
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| CN2012104454593A CN103012963A (en) | 2012-11-09 | 2012-11-09 | Novel nano Ag/TiO2 modified antibacterial and flame resistant polypropylene plastic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375299A (en) * | 2020-11-17 | 2021-02-19 | 东台市新达荣波纹管有限公司 | Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof |
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| CN1899046A (en) * | 2006-07-11 | 2007-01-24 | 陈荷庚 | Anti-bacteria melamine material and its preparing method and its use in tableware |
| CN101089038A (en) * | 2007-06-08 | 2007-12-19 | 深圳市科聚新材料有限公司 | Antibacterial polypropylene material and its prepn process |
| CN101245191A (en) * | 2008-02-28 | 2008-08-20 | 陈汉洲 | Nano antiseptic plastic product and manufacture method thereof |
| CN101469091A (en) * | 2007-12-24 | 2009-07-01 | 上海杰事杰新材料股份有限公司 | Polypropylene polymeric compound and method of preparing same |
| CN102382372A (en) * | 2011-09-21 | 2012-03-21 | 深圳市科聚新材料有限公司 | Flame-retardant anti-bacteria polypropylene composite material and preparation method thereof |
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- 2012-11-09 CN CN2012104454593A patent/CN103012963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1899046A (en) * | 2006-07-11 | 2007-01-24 | 陈荷庚 | Anti-bacteria melamine material and its preparing method and its use in tableware |
| CN101089038A (en) * | 2007-06-08 | 2007-12-19 | 深圳市科聚新材料有限公司 | Antibacterial polypropylene material and its prepn process |
| CN101469091A (en) * | 2007-12-24 | 2009-07-01 | 上海杰事杰新材料股份有限公司 | Polypropylene polymeric compound and method of preparing same |
| CN101245191A (en) * | 2008-02-28 | 2008-08-20 | 陈汉洲 | Nano antiseptic plastic product and manufacture method thereof |
| CN102382372A (en) * | 2011-09-21 | 2012-03-21 | 深圳市科聚新材料有限公司 | Flame-retardant anti-bacteria polypropylene composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375299A (en) * | 2020-11-17 | 2021-02-19 | 东台市新达荣波纹管有限公司 | Polypropylene PP flame-retardant anti-aging corrugated pipe and production process thereof |
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Application publication date: 20130403 |