CN105199236A - Antibacterial composite and preparing method thereof - Google Patents
Antibacterial composite and preparing method thereof Download PDFInfo
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- CN105199236A CN105199236A CN201410257757.9A CN201410257757A CN105199236A CN 105199236 A CN105199236 A CN 105199236A CN 201410257757 A CN201410257757 A CN 201410257757A CN 105199236 A CN105199236 A CN 105199236A
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Abstract
The invention relates to an antibacterial composite and a preparing method thereof. The antibacterial composite is prepared from, by weight, 100 parts of polypropylene, 1 part to 5 parts of compatilizers, 0.5 part to 3 parts of organic antibacterial agents, 5 parts to 20 parts of inorganic antibacterial agents, 0.4 part to 0.8 part of coupling agents, 3 parts to 6 parts of plasticizers and 0.5 part to 2 parts of antioxygens. According to the antibacterial composite, the assistants such as the inorganic antibacterial agents, the organic antibacterial agents and the plasticizers are reasonably chosen and mixed, the antibacterial performance of the antibacterial composite is greatly improved accordingly, and the prepared antibacterial composite can be widely used for hospital seats, medical facilities and various white household appliances.
Description
Technical field
The invention belongs to field of compound material, be specifically related to a kind of Antibacterial Composite Material and Preparation Method.
Background technology
Anti-biotic material refers to that material itself has a class matrix material of the function of good sterilization or suppression microorganism.Applying more in current anti-biotic material is plastics antimicrobial composite materials.But use all containing silver ion antimicrobial agent in more antimicrobial composite material at present, as Chinese patent CN103571162A discloses a kind of PET anti-biotic material, component comprises PET resin, calcium carbonate nano particle, silver ion antimicrobial agent, lubricant stearic acid etc.These patent utilization composite oxides nanometer CuFe2O4 prepares antiseptic-germicide as the carrier of silver, has good antibacterial effect.
Although silver ion antimicrobial agent has good antibacterial effect, price is higher, and the antimicrobial efficiency in use procedure is relatively low.And argent is distributed to after in plastic material, the later stage is difficult to reclaim, larger to the wasting of resources.If developing a kind of precious metal that do not adopt is the antimicrobial composite material of main antibacterial raw material, reaches good anti-bacterial effect, the requirement that anti-microbial effect is lasting simultaneously, will larger marketable value be had.
Summary of the invention
For solving the above-mentioned technical problem existed in prior art, the object of this invention is to provide a kind of Antibacterial Composite Material and Preparation Method, this antimicrobial composite material has good anti-bacterial effect, and antibacterial time is long, good weatherability, the advantage of long service life.
Technical scheme of the present invention is as follows:
A kind of antimicrobial composite material, be made up of the component comprising following weight part:
Preferably, described polypropylene is Co-polypropylene.
Preferably, described compatilizer is maleic anhydride inoculated polypropylene.
Preferably, described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1 ~ 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1 ~ 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 ~ 80 DEG C and stir 15 ~ 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 1 ~ 3 part, potassium sorbate 0.2 ~ 0.8 part, mix obtained described antiseptic-germicide.
The composite particles that 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer and benzyldimethyldodecylammonium ammonium chloride obtain is both containing polymer segment, again containing sterilization group, there is stable performance, non-volatile, the significant advantage of sterilization effect, the relative molecular mass of polymer segment is larger simultaneously, and antibacterial effect is better.
Preferably, the relative molecular mass of described 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer is 15 ~ 200,000.
Preferably, described chitosan is 2-HACC.
Preferably, described inorganic antiseptic is that photocatalyst-type inorganic antiseptic and flaky inorganic filler are by weight being 1:(1 ~ 3) mixture.
Preferably, described photocatalyst-type inorganic antiseptic be selected from zinc oxide, silicon-dioxide or anatase titanium dioxide one or more;
Described flaky inorganic filler be selected from sheet polynite, sheet silicate, flake graphite one or more.
Zinc oxide, silicon-dioxide and anatase titanium dioxide belong to photocatalyst-type inorganic antiseptic, the hole-electron pair of high activity can be produced after illumination, and then generate the OH free radical of strong oxidizing property at product surface, thus kill the bacterium be in contact with it at short notice.
The mixture of photocatalyst-type inorganic antiseptic and flaky inorganic filler is adopted in inorganic antiseptic, after flaky inorganic filler is dispersed in the composite, certain iris action can be played, make the antimicrobial component in matrix material be discharged into the surface of antimicrobial composite material slowly, thus extend effective antibacterial time of antimicrobial composite material.
Preferably, described coupling agent be selected from γ-glycidyl ether oxygen propyl trimethoxy silicane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, 3-aminopropyl trimethoxysilane one or more.
Preferably, described softening agent is selected from cedar(wood)oil, one or more in Viscotrol C, wasabi essential oil.
Cedar(wood)oil, Viscotrol C, wasabi essential oil, as natural matter, itself have certain anti-microbial effect, can also play the effect of plasticising in the process of composite processing simultaneously.
Preferably; described oxidation inhibitor is selected from (N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine), (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester), (1; 3; 5-tri-(the 4-tertiary butyl-3-hydroxyl-2; 6-dimethyl benzyl)-1; 3,5-triazine-2,4; 6-(1H; 3H, 5H)-triketone) or (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester) in one or more.
A preparation method for above-mentioned antimicrobial composite material, comprises the following steps:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 1 ~ 5 part; Organic antibacterial agent 0.5 ~ 3 part; Inorganic antiseptic 5 ~ 20 parts; Coupling agent 0.4 ~ 0.8 part; 3 ~ 6 parts, softening agent; 0.5 ~ 2 part, oxidation inhibitor;
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, cooling obtains described antimicrobial composite material.
Preferably, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, and screw speed is 200 ~ 250R/min.
First inorganic antiseptic is mixed with coupling agent; the coupling efficiency of coupling agent can be improved preferably; spout after being mixed with softening agent by organic antibacterial agent in the middle part of extruder screw adds forcing machine; antiseptic-germicide can be protected; its heated time is shortened, reduces the degraded in the course of processing.
Compared to the prior art, beneficial effect of the present invention is:
(1) antimicrobial composite material of the present invention is by the choose reasonable of the auxiliary agents such as inorganic antiseptic, organic antibacterial agent, softening agent and configuration, the anti-microbial property of antimicrobial composite material is largely increased, obtained antimicrobial composite material can be widely used in hospital's seat, in medical facilities and various white domestic appliances.
(2) mixture of photocatalyst-type inorganic antiseptic and flaky inorganic filler is adopted in the inorganic antiseptic in antimicrobial composite material of the present invention, after flaky inorganic filler is dispersed in the composite, certain iris action can be played, make the antimicrobial component in matrix material be discharged into the surface of antimicrobial composite material slowly, thus extend effective antibacterial time of antimicrobial composite material.
(3) organic antibacterial agent of the present invention is polymer antibacterial agent, and the existence of polymer segment not only improves the consistency of antiseptic-germicide and polystyrene matrix, and the existence of polymer segment also improves the sterilizing ability of antiseptic-germicide and the time of effective sterilization.
(4), in antimicrobial composite material of the present invention, do not adopt the antiseptic-germicide of silver ions series, significantly reduce raw materials cost.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, and in embodiment except specified otherwise, content is weight part.
Embodiment 1
A kind of antimicrobial composite material, is obtained by following methods:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 1 part; Organic antibacterial agent 0.5 part; Inorganic antiseptic 5 parts; Coupling agent 0.4 part; 3 parts, softening agent; 0.5 part, oxidation inhibitor;
Wherein, described polypropylene is Co-polypropylene; Described compatilizer is maleic anhydride inoculated polypropylene; Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 DEG C and stir 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 1 part, potassium sorbate 0.2 part, mix obtained described antiseptic-germicide; Described chitosan is 2-HACC; Described inorganic antiseptic is photocatalyst-type inorganic antiseptic and flaky inorganic filler is the mixture of 1:1 by weight; Described photocatalyst-type inorganic antiseptic is zinc oxide; Described flaky inorganic filler is sheet polynite; Described coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane; Described softening agent is cedar(wood)oil; Described oxidation inhibitor is (N, N'-pair-(3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine);
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, screw speed is 200 ~ 250R/min, and cooling obtains described antimicrobial composite material.
Embodiment 2
A kind of antimicrobial composite material, is obtained by following methods:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 5 parts; Organic antibacterial agent 3 parts; Inorganic antiseptic 20 parts; Coupling agent 0.8 part; 6 parts, softening agent; 2 parts, oxidation inhibitor;
Wherein, described polypropylene is Co-polypropylene; Described compatilizer is maleic anhydride inoculated polypropylene; Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 80 DEG C and stir 15min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 3 parts, potassium sorbate 0.8 part, mix obtained described antiseptic-germicide; Described chitosan is 2-HACC; Described inorganic antiseptic is photocatalyst-type inorganic antiseptic and flaky inorganic filler is the mixture of 1:3 by weight; Described photocatalyst-type inorganic antiseptic elects silicon-dioxide as; Described flaky inorganic filler is sheet silicate; Described coupling agent is N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane; Described softening agent is Viscotrol C; Described oxidation inhibitor is (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester);
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, screw speed is 200 ~ 250R/min, and cooling obtains described antimicrobial composite material.
Embodiment 3
A kind of antimicrobial composite material, is obtained by following methods:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 3 parts; Organic antibacterial agent 1.5 parts; Inorganic antiseptic 15 parts; Coupling agent 0.6 part; 5 parts, softening agent; 1.5 parts, oxidation inhibitor;
Wherein, described polypropylene is Co-polypropylene; Described compatilizer is maleic anhydride inoculated polypropylene; Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 3g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 3g benzyldimethyldodecylammonium ammonium chloride, be heated to 70 DEG C and stir 25min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 2 parts, potassium sorbate 0.6 part, mix obtained described antiseptic-germicide; Described chitosan is 2-HACC; Described inorganic antiseptic is photocatalyst-type inorganic antiseptic and flaky inorganic filler is the mixture of 1:2 by weight; Described photocatalyst-type inorganic antiseptic elects anatase titanium dioxide as; Described flaky inorganic filler is flake graphite; Described coupling agent is 3-aminopropyl trimethoxysilane; Described softening agent is Viscotrol C; Described oxidation inhibitor is (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester);
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, screw speed is 200 ~ 250R/min, and cooling obtains described antimicrobial composite material.
Embodiment 4
A kind of antimicrobial composite material, is obtained by following methods:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 2 parts; Organic antibacterial agent 1 part; Inorganic antiseptic 8 parts; Coupling agent 0.6 part; 4 parts, softening agent; 0.8 part, oxidation inhibitor;
Wherein, described polypropylene is Co-polypropylene; Described compatilizer is maleic anhydride inoculated polypropylene; Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 2g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 2g benzyldimethyldodecylammonium ammonium chloride, be heated to 80 DEG C and stir 15min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 2 parts, potassium sorbate 0.2 part, mix obtained described antiseptic-germicide; Described chitosan is 2-HACC; Described inorganic antiseptic is photocatalyst-type inorganic antiseptic and flaky inorganic filler is the mixture of 1:2 by weight; Described photocatalyst-type inorganic antiseptic elects zinc oxide as; Described flaky inorganic filler is sheet silicate; Described coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane; Described softening agent is wasabi essential oil; Described oxidation inhibitor is (1,3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazines-2,4,6-(1H, 3H, 5H)-triketone);
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, screw speed is 200 ~ 250R/min, and cooling obtains described antimicrobial composite material.
Embodiment 5
A kind of antimicrobial composite material, is obtained by following methods:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 4 parts; Organic antibacterial agent 2 parts; Inorganic antiseptic 10 parts; Coupling agent 0.6 part; 5 parts, softening agent; 1.5 parts, oxidation inhibitor;
Wherein, described polypropylene is Co-polypropylene; Described compatilizer is maleic anhydride inoculated polypropylene; Described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 3g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 3g benzyldimethyldodecylammonium ammonium chloride, be heated to 70 DEG C and stir 25min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 2 parts, potassium sorbate 0.6 part, mix obtained described antiseptic-germicide; Described chitosan is 2-HACC; Described inorganic antiseptic is photocatalyst-type inorganic antiseptic and flaky inorganic filler is the mixture of 1:2 by weight; Described photocatalyst-type inorganic antiseptic elects anatase titanium dioxide as; Described flaky inorganic filler is flake graphite; Described coupling agent is 3-aminopropyl trimethoxysilane; Described softening agent is Viscotrol C; Described oxidation inhibitor is (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester);
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, screw speed is 200 ~ 250R/min, and cooling obtains described antimicrobial composite material.
Carry out performance test to the product obtained in embodiment, test result is in table 1:
Table 1
In the present invention, pp material is oil of SPC M800E food-grade polypropylene, and the shock strength of virgin material is 35J/M, and after antibacterial modified, obtained antimicrobial composite material mechanical properties decrease amplitude is lower, can meet service requirements.
The above embodiment is preferred embodiments of the present invention, is not limit the scope of the present invention, therefore all equivalences done according to the principle described in the present patent application the scope of the claims change or modify, all should in patent claim of the present invention.
Claims (10)
1. an antimicrobial composite material, is characterized in that, is made up of the component comprising following weight part:
2. a kind of antimicrobial composite material according to claim 1, is characterized in that, described polypropylene is Co-polypropylene; Or described compatilizer is maleic anhydride inoculated polypropylene.
3. a kind of antimicrobial composite material according to claim 1, it is characterized in that, described organic antibacterial agent obtains in accordance with the following methods: add in 50ml chloroform solvent by 1 ~ 5g 1-chloro-4-methyl-benzene-divinyl benzene styrene multipolymer, add 1 ~ 5g benzyldimethyldodecylammonium ammonium chloride, be heated to 50 ~ 80 DEG C and stir 15 ~ 30min, filter, washing drying obtains composite particles; Weigh composite particles 5 parts by weight, chitosan 1 ~ 3 part, potassium sorbate 0.2 ~ 0.8 part, mix obtained described antiseptic-germicide.
3. a kind of antimicrobial composite material according to claim 3, is characterized in that, described chitosan is 2-HACC.
4. a kind of antimicrobial composite material according to claim 1, is characterized in that, described inorganic antiseptic is that photocatalyst-type inorganic antiseptic and flaky inorganic filler are by weight being 1:(1 ~ 3) mixture.
5. a kind of antimicrobial composite material according to claim 4, is characterized in that, described photocatalyst-type inorganic antiseptic be selected from zinc oxide, silicon-dioxide or anatase titanium dioxide one or more;
Described flaky inorganic filler be selected from sheet polynite, sheet silicate, flake graphite one or more.
6. a kind of antimicrobial composite material according to claim 1, it is characterized in that, described coupling agent be selected from γ-glycidyl ether oxygen propyl trimethoxy silicane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, 3-aminopropyl trimethoxysilane one or more.
7. a kind of antimicrobial composite material according to claim 1, is characterized in that, described softening agent is selected from cedar(wood)oil, one or more in Viscotrol C, wasabi essential oil.
8. a kind of antimicrobial composite material according to claim 1; it is characterized in that; described oxidation inhibitor is selected from (N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine), (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester), (1; 3; 5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3; 5-triazine-2; 4,6-(1H, 3H; 5H)-triketone) or (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester) in one or more.
9., as a preparation method for the antimicrobial composite material as described in arbitrary in claim 1 ~ 8, it is characterized in that, comprise the following steps:
(1) polypropylene 100 parts is weighed by weight; Compatilizer 1 ~ 5 part; Organic antibacterial agent 0.5 ~ 3 part; Inorganic antiseptic 5 ~ 20 parts; Coupling agent 0.4 ~ 0.8 part; 3 ~ 6 parts, softening agent; 0.5 ~ 2 part, oxidation inhibitor;
(2) inorganic antiseptic is first mixed with coupling agent add polypropylene again, compatilizer, oxidation inhibitor mixes, add in the charging opening of cross-head, organic antibacterial agent and softening agent are mixed melt blending together with the spout in the middle part of extruder screw adds forcing machine, extrude pelletizing, cooling obtains described antimicrobial composite material.
10. the preparation method of internal cavity of bowl washer matrix material according to claim 9, is characterized in that, the extrusion temperature of forcing machine is 180 ~ 210 DEG C, and screw speed is 200 ~ 250R/min.
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| CN105482428A (en) * | 2016-01-19 | 2016-04-13 | 湖北工程学院 | Antibacterial high-strength polycarbonate composite and preparation method |
| CN106146989A (en) * | 2016-08-18 | 2016-11-23 | 安徽颍美彩印包装有限公司 | A kind of natural anti-corrosive antibacterial packaging material for food and preparation method thereof |
| CN106167581A (en) * | 2016-08-17 | 2016-11-30 | 倪协照 | A kind of preparation method of antibacterial polypropylene |
| CN106280423A (en) * | 2016-08-30 | 2017-01-04 | 宁波伊德尔新材料有限公司 | A kind of anti-bacteria nylon composite and preparation method thereof |
| CN106519454A (en) * | 2016-11-29 | 2017-03-22 | 南京悠谷知识产权服务有限公司 | Polypropylene antibacterial material and preparation method thereof |
| CN108034148A (en) * | 2017-12-28 | 2018-05-15 | 东北林业大学 | A kind of antibacterial type cellulose/PP composite material and preparation method |
| CN109021389A (en) * | 2018-07-02 | 2018-12-18 | 苏州洋紫瑞信息科技有限公司 | A kind of low composite material and preparation method with good anti-bacterial effect of water absorption rate |
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| CN111350026A (en) * | 2020-03-19 | 2020-06-30 | 北京化工大学 | Melt-blown polypropylene with super-long antibacterial effect and preparation method and application thereof |
| CN112646273A (en) * | 2020-12-22 | 2021-04-13 | 江苏尚艾新材料科技有限公司 | Polypropylene composite material with high light transmittance, hydrolysis resistance, antibiosis and mildew resistance and preparation method thereof |
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| CN105482428A (en) * | 2016-01-19 | 2016-04-13 | 湖北工程学院 | Antibacterial high-strength polycarbonate composite and preparation method |
| CN106167581A (en) * | 2016-08-17 | 2016-11-30 | 倪协照 | A kind of preparation method of antibacterial polypropylene |
| CN106146989A (en) * | 2016-08-18 | 2016-11-23 | 安徽颍美彩印包装有限公司 | A kind of natural anti-corrosive antibacterial packaging material for food and preparation method thereof |
| CN106280423A (en) * | 2016-08-30 | 2017-01-04 | 宁波伊德尔新材料有限公司 | A kind of anti-bacteria nylon composite and preparation method thereof |
| CN106519454A (en) * | 2016-11-29 | 2017-03-22 | 南京悠谷知识产权服务有限公司 | Polypropylene antibacterial material and preparation method thereof |
| CN108034148B (en) * | 2017-12-28 | 2020-06-05 | 东北林业大学 | Antibacterial cellulose/polypropylene composite material and preparation method thereof |
| CN108034148A (en) * | 2017-12-28 | 2018-05-15 | 东北林业大学 | A kind of antibacterial type cellulose/PP composite material and preparation method |
| CN109021389A (en) * | 2018-07-02 | 2018-12-18 | 苏州洋紫瑞信息科技有限公司 | A kind of low composite material and preparation method with good anti-bacterial effect of water absorption rate |
| CN109851920A (en) * | 2019-01-31 | 2019-06-07 | 温州市疾病预防控制中心 | A kind of antimicrobial form food pack |
| CN111350026B (en) * | 2020-03-19 | 2021-05-11 | 北京化工大学 | Melt-blown polypropylene with super-long antibacterial effect and preparation method and application thereof |
| CN111350026A (en) * | 2020-03-19 | 2020-06-30 | 北京化工大学 | Melt-blown polypropylene with super-long antibacterial effect and preparation method and application thereof |
| CN112646273A (en) * | 2020-12-22 | 2021-04-13 | 江苏尚艾新材料科技有限公司 | Polypropylene composite material with high light transmittance, hydrolysis resistance, antibiosis and mildew resistance and preparation method thereof |
| CN112778967A (en) * | 2020-12-25 | 2021-05-11 | 广州市白云化工实业有限公司 | Mildew-proof antibacterial silicone sealant composition and preparation method thereof |
| CN112778967B (en) * | 2020-12-25 | 2022-08-02 | 广州市白云化工实业有限公司 | Mildew-proof antibacterial silicone sealant composition and preparation method thereof |
| CN113712046A (en) * | 2021-05-26 | 2021-11-30 | 北京崇高纳米科技有限公司 | Organic-inorganic compound for long-acting protection of microorganisms and preparation method thereof |
| CN113712046B (en) * | 2021-05-26 | 2023-10-24 | 北京崇高纳米科技有限公司 | Organic-inorganic compound capable of protecting microorganisms for long time and preparation method thereof |
| CN113789585A (en) * | 2021-09-17 | 2021-12-14 | 兴源环境科技股份有限公司 | Antibacterial filter cloth for filter press and preparation method thereof |
| CN114318627A (en) * | 2021-12-27 | 2022-04-12 | 安徽乙纤新材料科技有限公司 | Production process of antibacterial reinforced plastic net |
| CN115819885A (en) * | 2022-12-19 | 2023-03-21 | 广东道生科技股份有限公司 | Antibacterial and tensile polypropylene composite material and preparation method and application thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |