CN103059494B - Antibacterial asa plastic - Google Patents
Antibacterial asa plastic Download PDFInfo
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- CN103059494B CN103059494B CN201310003692.0A CN201310003692A CN103059494B CN 103059494 B CN103059494 B CN 103059494B CN 201310003692 A CN201310003692 A CN 201310003692A CN 103059494 B CN103059494 B CN 103059494B
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Abstract
The invention discloses antibacterial ASA plastic comprising the components of, by weight, 100 parts of ASA and 0.3-0.5 parts of a composite antibacterial agent. The composite antibacterial agent is composed of the components of, by weight: 2-6 parts of cedar oil, 4-8 parts of chitosan, 10-20 parts of nano-grade titanium dioxide, 15-25 parts of nano-grade silver oxide, 30-50 parts of polyhexamethylene guanidine phosphate, and 2-4 parts of N-(trichloromethylthio)phthalimide. The antibacterial ASA plastic provided by the invention has high bacterium inhibition, bacterium killing, and anti-mildew effects. With an injection molding process, the plastic can be easily processed into automotive interior parts with various shapes, such as glove box inner cover plate, glove box bucket, instrument panel, and panel storage box.
Description
Technical field
The present invention relates to a kind of antibiotic plastic, particularly relate to a kind of Antibacterial ASA plastic.
Background technology
Occurring in nature also exist various galley proof microorganism, in daily life, microorganism and people have inseparable contacting, and part bacterium, fungi, virus etc. the health of the mankind, even threat to life as pathogenic bacteria serious harm.Data presentation according to statistics, lethal because of the bacteriological infection every year number in the whole world, close to 2,000 ten thousand, accounts for 30% of total toll; The U.S. " WHO " magazine statistic data display in 1996: nineteen ninety-five, about 5,200 ten thousand people in the whole world were dead, wherein about 1,700 ten thousand is dead because bacteriological infection causes a disease.These disease lifes will comprise cholera, pneumonia, disease disease, tuberculosis and hepatitis etc.As everyone knows, the serious respiratory tract infection disease (SARS) that " foot and mouth disease ", " anthrax " of the U.S. that " mad cow disease " broken out in Britain for nearly ten years, Korea S and Japan occur, China occur for 2003 and to occur for 2004 and the bird flu continued into the present allows All Around The World be absorbed in fear, each the disaster that bacterium brings people makes the attention degree of people to Disease epizootic and prevention bring up to unprecedented height.Within the hospital, cross-infection rate is then more than 10%.As can be seen here, malignant bacteria brings huge threat to human health really.
In the face of the harm of malignant bacteria be becoming increasingly rampant, the mankind constantly carry out studying and exploring at antibiosis.From initial fugitive sterilization to the use of long acting antibiotic product.Particularly after bird flu, more antimicrobial product has been crowded into market.Ancient Egyptian just used wound to cover silver strip to prevent bacteriological infection before more than 4000 years; Men of old protects mummy with medicinal antibacterial plant.World War II, Reichsweshr is by disinfecting to military uniform the infection reducing wound.
Along with growth in the living standard, the requirement of people to living environment is also more and more higher.Thus, the production of anti-biotic material has become an emerging industry, and the research of countries in the world to antiseptic-germicide is paid attention to more.From microbiology angle, antibacterial concept is to the control of germ is distinguishing with sterilization, its not requirement can be killed HUMAN HEALTH or life, production environment harmful microorganism immediately, and focus in long-term use procedure, suppress the growth and breeding of wound door, keep the sanitation and hygiene of environment.We are usually said antibacterially often contains sterilizing, except meanings such as mould, sterilizations.In general, requiring to antiseptic-germicide: (l) antibacterial ability and broad spectrum antibacterial; (2) long-lasting, namely wash resistant, wear-resistant, the life-span is long; (3) weather resisteant, i.e. heat-resisting, resistance to sunshine, not easily decomposition failure; (4) with the consistency of base material or workability, namely easily add nondiscoloration in base material to, do not reduce product performance; (5) security, is harmless to the health, and does not cause the pollution to environment; (6) bacterium not easily produces resistance.
Antibiotic plastic refers to and adds antiseptic-germicide in the plastic, make plastics itself have germ resistance, can within a certain period of time the bacterium of staiing on plastics be killed or suppress, compare with physical method with the chemistry of routine, use antibiotic plastic sterilization timeliness long, not only economy but also facilitate.Antiseptic-germicide can divide inorganic, organic and natural bio-antimicrobial agents 3 type.Due to the Antibacterial mechanism of different antiseptic-germicides to pathogenic bacteria of the same race and the difference of validity, and antiseptic-germicide of the same race is also different with suppression scope for the anti-microbial effect mechanism of different pathogenic bacterias, therefore, work out not only long-acting but also wide spectrum, not only efficient but also safe antiseptic-germicide, very important to the research of Antibacterial Mechanism.
The development and application of antibiotic plastic has set up one green screen for protecting human health, and for improving environment for human survival, reduce disease, protection fitness-for-all, tool is of great significance.Because antibiotic plastic can fundamentally reduce or avoid person to person, people and thing, the cross infection of bacterium between thing and thing, the plastics with antibacterial are generally subject to people's attention and welcome.In the last thirty years, the preparation of antibiotic plastic there has also been unprecedented high speed development.
But, there is not a kind of ASA plastic at present, can be effectively antibacterial.
Summary of the invention
For above shortcomings in prior art, technical problem to be solved by this invention provides a kind of Antibacterial ASA plastic.
The present invention is achieved through the following technical solutions:
A kind of Antibacterial ASA plastic, comprise the component of following weight parts: ASA100 part, complex antimicrobials 0.3-0.5 part, described complex antimicrobials, is made up of following component: cedar(wood)oil, chitosan, nano titanium oxide, nano phase ag_2 o, polyhexamethylene guanidine phosphoric acid salt and N-(trichloro-methylthio) phthalic imidine.
Preferably,
Described complex antimicrobials, is made up of by weight following component: cedar(wood)oil 2-6 part, chitosan 4-8 part, nano titanium oxide 10-20 part, nano phase ag_2 o 15-25 part, polyhexamethylene guanidine phosphoric acid salt 30-50 part, N-(trichloro-methylthio) phthalic imidine 2-4 part.
Cedar(wood)oil, chitosan, nano titanium oxide, nano phase ag_2 o, polyhexamethylene guanidine phosphoric acid salt and N-(trichloro-methylthio) phthalic imidine are uniformly mixed, this complex antimicrobials can be obtained.
Described Antibacterial ASA plastic, also comprises dispersion agent 0.2-0.4 part, and described dispersion agent is one in ethylene bis stearamide, stearic acid, polyethylene wax, whiteruss or its mixture.
Described Antibacterial ASA plastic, also comprise compatilizer 2-4 part, described compatilizer is one in polypropylene grafted maleic anhydride, polypropylene grafted carboxylic acid, Chlorinated Polypropylene III, polypropylene grafted glycidyl methacrylate, Research of Grafting Malaic Anhydride Onto Polyethylene and methacrylic acid-styrene-butadiene or its mixture.
Obviously, in the present invention for improving other performances of product, other auxiliary agents can also be added adaptively in blended material, as oxidation inhibitor, softening agent, toughener, fire retardant, static inhibitor, nucleator, toughner, weighting agent, lubricant and pigment etc., its consumption is the conventional amount used of the industry, or adjusts according to the requirement of practical situation.
Concrete, Raw of the present invention is introduced:
Cedar(wood)oil, Chinese another name: Cedrus deoclar (Roxb.) G. Don oil, English name China cedar wood oil, English another name: Cedarwood oil Natural; Cedar oil; Cedarwood oil BPC; Cypress; Cedarwood Oil EINECS:285-360-9.No. CAS: 8000-27-9.
Chitosan, has another name called: chitosan, chitosan, 2-amino-beta-1,4-dextran Chitosan.English name: Poly (beta-(Isosorbide-5-Nitrae)-2-amino-2-deoxy-D-glucose).No. CAS: 9012-76-4.
Nano titanium oxide, particle diameter is 10-100nm.Nano phase ag_2 o, particle diameter is 10-100nm.
Polyhexamethylene guanidine phosphoric acid salt, Polyhexamethyleneguanidine phosphate, CAS accession number: 89697-78-9.
N-(trichloro-methylthio) phthalic imidine, N-(Trichloromethylthio) phthalimide, CAS accession number: 133-07-3.
Ethylene bis stearamide, has another name called N, N'-ethylene bis stearamide, vinyl bis-stearamides.English name: N, N'-Ethylenebis (stearamide).CAS accession number: 110-30-5.
Stearic acid, English name: stearic acid, No. CAS: 57-11-4.
Polyethylene wax, another name PE wax, is formed by vinyl polymerization Rubber processing agent.
Whiteruss, English name: liquid paraffin.
Compatilizer, also known as expanding material, refers to by means of intermolecular linkage force, impels inconsistent two kinds of polymer scales to be combined in one, and then obtains the auxiliary agent of stable blend, this refers to polymer bulking agents.PE-g-ST, PP-g-ST, ASA-g-MAH, PE-g-MAH, PP-g-MAH etc., be applied in modifying plastics, obtains the good blended property material of performance.In the present invention, compatilizer is preferably one in polypropylene grafted maleic anhydride, polypropylene grafted carboxylic acid, Chlorinated Polypropylene III, polypropylene grafted glycidyl methacrylate, Research of Grafting Malaic Anhydride Onto Polyethylene and methacrylic acid-styrene-butadiene or its mixture.
ASA, English name: Acrylonitrile Styrene Acrylatecopolymer, acrylicstyrene-vinyl cyanide, the ternary graft copolymer be made up of vinyl cyanide (acrylonitrile), vinylbenzene (Styrene), acrylate (Acrylate), it take polyacrylic ester as main chain, with the non-crystalline type polymkeric substance of vinyl cyanide, styrene monomer graft copolymerization.
Antibacterial ASA plastic of the present invention can adopt industry universal method to be prepared, and such as: take each raw material by proportioning, after mixing, melting mixing, extruding pelletization, namely obtain described Antibacterial ASA plastic.
Antibacterial ASA plastic of the present invention has the effect of potent anti-bacteria, kill bacteria and mildew-resistant, can be processed into the automotive upholstery of different shape easily, as glove box inner cover plate, gloves hopper, dashboard, panel parcel tray by Shooting Technique.
Embodiment
The trade mark that following ASA all selects LG chemical company to produce is the ASA of XR-407.
Embodiment 1
Take: cedar(wood)oil 4 kilograms, chitosan 6 kilograms, nano titanium oxide 15 kilograms, nano phase ag_2 o 20 kilograms, polyhexamethylene guanidine phosphoric acid salt 40 kilograms, N-(trichloro-methylthio) phthalic imidine 3 kilograms.Be uniformly mixed, i.e. obtained complex antimicrobials.
Embodiment 2
Each raw material is taken according to embodiment 2 data corresponding in table 1.Each component is mixed in mixing machine, rotating speed 300-400r.p.m, mixing 5-10 minute, melting mixing, extruding pelletization in twin screw extruder again, the pellet extruded is dried 9 hours in 90 DEG C of constant temperature ovens, then become the plastic sample of 50mm × 50mm at injection temperature 200-220 DEG C hemostasis, carry out antibacterial test, test data is in table 2.Antibacterial test standard: QB/T2591-2003A " antibiotic plastic Anti-microbial Performance Tests method and antibacterial effect ".Detect with bacterium: intestinal bacteria (Escherichia coli) ATCC25922, streptococcus aureus (Staphy lococcus aureus) ATCC6538.
Embodiment 3
Each raw material is taken according to embodiment 3 data corresponding in table 1.Be prepared plastic sample by the method for embodiment 2, then carry out antibacterial test.
Embodiment 4
Each raw material is taken according to embodiment 4 data corresponding in table 1.Be prepared plastic sample by the method for embodiment 2, then carry out antibacterial test.
Table 1: Antibacterial ASA plastic formula table unit: kilogram
Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 3 | Comparative example 4 | |
ASA | 100 | 100 | 100 | 100 | 100 |
The complex antimicrobials of embodiment 1 | 0.4 | 0.4 | 0.4 | ||
The complex antimicrobials of comparative example 1 | 0.4 | ||||
The complex antimicrobials of comparative example 2 | 0.4 | ||||
Ethylene bis stearamide | 0.3 | 0.3 | |||
ASA grafted maleic anhydride | 3 |
Table 2:ASA plastics anti-microbial property test chart
Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 3 | Comparative example 4 | |
Intestinal bacteria sterilizing rate, % | 98.8 | 98.5 | 99.9 | 92.4 | 93.4 |
Streptococcus aureus sterilizing rate, % | 98.6 | 98.2 | 99.8 | 92.0 | 92.6 |
Comparative example 1
Take: chitosan 6 kilograms, nano titanium oxide 15 kilograms, nano phase ag_2 o 20 kilograms, polyhexamethylene guanidine phosphoric acid salt 44 kilograms, N-(trichloro-methylthio) phthalic imidine 3 kilograms.Be uniformly mixed, i.e. obtained complex antimicrobials.
Comparative example 2
Take: cedar(wood)oil 4 kilograms, nano titanium oxide 15 kilograms, nano phase ag_2 o 20 kilograms, polyhexamethylene guanidine phosphoric acid salt 46 kilograms, N-(trichloro-methylthio) phthalic imidine 3 kilograms.Be uniformly mixed, i.e. obtained complex antimicrobials.
Comparative example 3
Each raw material is taken according to comparative example 3 data corresponding in table 1.Be prepared plastic sample by the method for embodiment 2, then carry out antibacterial test.
Comparative example 4
Each raw material is taken according to comparative example 4 data corresponding in table 1.Be prepared plastic sample by the method for embodiment 2, then carry out antibacterial test.
Claims (1)
1. Antibacterial ASA plastic, it is characterized in that, comprise the component of following weight parts: ASA100 part, complex antimicrobials 0.3-0.5 part, described complex antimicrobials, is made up of by weight following component: cedar(wood)oil 2-6 part, chitosan 4-8 part, nano titanium oxide 10-20 part, nano phase ag_2 o 15-25 part, polyhexamethylene guanidine phosphoric acid salt 30-50 part, N-(trichloro-methylthio) phthalic imidine 2-4 part.
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CN108610551A (en) * | 2016-12-13 | 2018-10-02 | 佛山市顺德区美的电热电器制造有限公司 | A kind of anti-microbial plastic composition and anti-biotic material and preparation method and application |
CN108587032A (en) * | 2018-05-17 | 2018-09-28 | 芜湖创科新材料科技有限公司 | A kind of heat dissipation grid modified plastics preparation process with degerming functions |
CN108703879B (en) * | 2018-05-31 | 2020-11-17 | 安徽雨桐医疗科技有限公司 | Multifunctional moxibustion equipment |
CN113907087A (en) * | 2021-11-16 | 2022-01-11 | 常州市武进盛源化工有限公司 | Bactericide for water injection treatment |
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CN102838826A (en) * | 2012-09-26 | 2012-12-26 | 上海瀚氏模具成型有限公司 | Antibacterial ASA (acrylonitrile styrene acrylate) plastic material for car interiors and preparation method thereof |
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CN102241883B (en) * | 2010-09-25 | 2013-06-05 | 深圳市科聚新材料有限公司 | Antimicrobial polyamide material and preparation method thereof |
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Inventor after: Zhang Qingli Inventor before: Huang Meirong |
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Effective date of registration: 20170417 Address after: 266111, Shandong, Chengyang, Qingdao, Hong Kong Street, street, a beautiful street, No. 1-2 Patentee after: Qingdao Baishitexin Material Co. Ltd. Address before: Room 271, building 280, Shuguang Road, Shanghai, Minhang District, 201111, China Patentee before: Shanghai Qiucheng New Material Technology Co., Ltd. |
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