KR20170033133A - Inorganic antimicrobial agent using the waste shell, antimicrobial plastic composition containing them and antimicrobial filter containing them - Google Patents
Inorganic antimicrobial agent using the waste shell, antimicrobial plastic composition containing them and antimicrobial filter containing them Download PDFInfo
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- KR20170033133A KR20170033133A KR1020150131074A KR20150131074A KR20170033133A KR 20170033133 A KR20170033133 A KR 20170033133A KR 1020150131074 A KR1020150131074 A KR 1020150131074A KR 20150131074 A KR20150131074 A KR 20150131074A KR 20170033133 A KR20170033133 A KR 20170033133A
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- A01N63/02—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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- C08K3/005—
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- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
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Abstract
The present invention relates to an inorganic antibacterial agent using a shell, an antibacterial plastic composition containing the antibacterial agent, and an antibacterial filter containing the inorganic antibacterial agent. More particularly, the present invention relates to an inorganic antibacterial agent which is harmless to the human body, By applying this to various plastic molding materials or filters of various air conditioners to produce a plastic composition or filter having antibacterial properties, it is possible to solve the harmfulness problem of conventional antimicrobial agents and to expand the application range of marine natural minerals In addition, in producing the inorganic antibacterial agent by using the shell, the shell is undifferentiated to improve the extraction efficiency and purity, and the surface of the shell is modified so that the base polymer (applied to the plastic composition) or the binder polymer By improving its dispersibility, As well as to enhance the phagocytic yet prevent hazardous heavy metals are detected so as not to reduce the physical properties of the target product, the inorganic antibacterial agent using a shell, the antimicrobial plastic composition containing the same and to a filter containing the same antibiotic.
Description
The present invention relates to a method for producing an inorganic antibacterial agent which is harmless to the human body by using marine waste such as shellfish and which is applied to various plastic molding materials or filters of various air conditioners to produce a plastic composition or filter having antimicrobial properties , An inorganic antibacterial agent using a shell, an antibacterial plastic composition containing the antibacterial agent, and an antibacterial filter containing the same.
In recent years, with the interest in environmentally friendly materials, the production of plastic consumer goods which are harmless to the human body and emphasized the function is increasing, and the consumption tendency is rapidly changing from the plastic material to the plastic material . In particular, there is a growing demand for functional plastics that are harmless to the human body and have excellent antibacterial properties.
In addition, as the living standards of consumers have increased, interest in health has also increased, and the antimicrobial home appliances market has grown by more than 20% each year. This is because hygiene consciousness for concern about health has increased and well- It is growing.
As a related prior art, Patent Document 1 proposes an antimicrobial plastic material containing an uncoated zinc oxide powder in the form of a polymer resin and a secondary particle aggregated with primary particles.
In addition, in Patent Document 2, a mixing step of mixing 1 to 10 parts by weight of triclosan serving as an antibacterial agent in 100 parts by weight of a base resin and mixing them to prepare a mixture, mixing the mixture while heating the mixture to such an extent that the base resin is completely melted, A step of extruding the melted mixture through a kneading step, a step of producing a master batch chip by cooling, drying and cutting the extruded mixture to a predetermined size, and a new base resin And a product molding step of mixing and molding 1 to 10 parts by weight of the master batch chip with respect to 100 parts by weight of the master batch chip to produce a product.
(A) preparing a powder containing pegmatite fine particles adjusted to a particle size of 0.35 to 1 μm; and (B) blending the functional powder 3 to 4 (C) mixing 3 to 4 parts by weight of the mixture per 100 parts by weight of the plastic raw material composition selected from the group consisting of polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) Forming a plastic article having antibacterial properties.
However, the above conventional techniques have been disadvantageous in that they are not economical and have harmful effects on the human body due to the use of expensive antimicrobial substances or artificially synthesized chemicals, And also contains harmful heavy metals.
Furthermore, when such an antibacterial substance is applied to a plastic material, there is a problem that the physical properties of the plastic material are rapidly deteriorated.
On the other hand, in recent years, in the semiconductor manufacturing process requiring a clean environment, in the precision machine industry, hospitals, food and medical industries, it is working in a clean state in which micro particles contained in air and dust including bacteria are removed. An apparatus for removing foreign substances contained in the air is referred to as an air conditioner. Such an air conditioner essentially includes an inlet and a fan, and a filter for removing foreign substances contained in the air is provided between the inlet and the fan.
Such an air conditioning apparatus plays an important role in providing the antibacterial property to such a filter as the function of the filter is very important as the inhaled air is supplied to the room again.
Patent Document 4 discloses a cross-laying process in which a mixture of polyester and viscose rayon is stacked so as to have a predetermined thickness to obtain fibers, and a cross-laying process in which fibers obtained through the cross-laying process are put into a first impregnation solution A first impregnation step of impregnating the first fiber impregnated with the first impregnation solution and a second impregnation step of impregnating the second impregnation solution with the dried fiber, , A second drying step of taking out carbon-impregnated fibers from the second impregnation liquid and drying them at room temperature, a third impregnation step of impregnating and impregnating the carbon-impregnated and dried fibers into the third impregnation liquid, A third drying step in which the fibers impregnated with the antibacterial agent are taken out from the tea impregnation solution and then dried at room temperature and a cutting step of cutting the finished product obtained through the third drying step to a predetermined size And a method of manufacturing the filter member.
However, since the antibacterial agent applied to such a filter is also not economical due to the use of an expensive antimicrobial substance or an artificially synthesized chemical substance, it has a problem that it has a detrimental effect on the human body and also has a problem that the antibacterial characteristic itself is insufficient And the like.
On the other hand, various shells (eg, oysters, petrification, abalone, shellfish, scallop shellfish, pearl shellfish, pearl shellfish, shellfish, etc.) have a low recycling rate and shells that are not recycled are the main cause of environmental pollution have. Therefore, it is urgent to recycle the waste hood classified as industrial waste.
The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an inorganic antibacterial agent which is harmless to the human body by using marine waste such as shell, and which is applied to various plastic molding materials or filters of various air- It is an object of the present invention to solve the problem of harmfulness of conventional antimicrobial agents and to expand the application range of marine natural minerals having a low use value.
In addition, in producing the inorganic antibacterial agent using the shell, the extraction efficiency and purity can be improved by undifferentating the shell, and the surface thereof can be modified so that the dispersibility of various base polymers (applied to the plastic composition) or the binder polymer To improve the antimicrobial properties thereof and to prevent the deterioration of physical properties of the object product while preventing harmful heavy metals from being detected.
The present invention relates to an inorganic antimicrobial agent using a shell, which is characterized in that the inorganic antimicrobial agent is obtained by micronizing the shell and modifying the surface thereof.
Further, the present invention provides an antibacterial plastic composition containing an inorganic antibacterial agent, which is characterized in that the plastic polymer composition comprises an inorganic antibacterial agent using a shell in a base polymer.
In addition, the present invention relates to an antibacterial binder prepared by impregnating or coating an inorganic antibacterial agent using a shell on a fiber, or by mixing an inorganic antibacterial agent using a shell on a binder polymer, and impregnating the antibacterial binder with a fiber cloth, And an antimicrobial filter containing an inorganic antibacterial agent.
The present invention solves the problem of harmfulness of the conventional antimicrobial agent and not only makes it possible to expand the application range of marine natural minerals having a low use value but also to reduce the treatment cost of marine waste and also to improve antimicrobial properties It is possible not only to prevent the detection of harmful heavy metals but also to reduce the physical properties of the target product, thereby enabling import substitution of the antimicrobial polymer additive which is largely dependent on import.
More specifically, we have developed an inorganic antibacterial agent having 99.9% antibacterial activity of homogeneous particles through pretreatment process (washing, grinding, sintering-classification) and surface treatment, and applied it to various plastic materials and antibacterial filter materials In particular, when the inorganic antimicrobial agent is used as various plastic materials or filter materials, the target product exhibits excellent antibacterial performance. In order to improve the extraction efficiency and purity, the antimicrobial agent In addition, not only the content of the harmful heavy metals is not detected but also the inorganic antibacterial agent is dispersed in various plastic materials to produce the compound. When the injection molded product is manufactured by extrusion processing, the properties of the target product are not lowered .
1 is a photograph for evaluating antimicrobial activity of an inorganic antibacterial agent using a shell according to the present invention
2 is a photograph for evaluating the antibacterial activity of the antibacterial plastic composition according to the present invention
3 is a photograph for evaluating the antibacterial activity of the antibacterial filter according to the present invention
The present invention relates to an inorganic antibacterial agent using a shell, an antibacterial plastic composition containing the antibacterial agent, and an antibacterial filter containing the antibacterial agent. The present invention relates to an inorganic antibacterial agent using a shell, It will be omitted so as not to disturb.
Hereinafter, the inorganic antibacterial agent using the shell according to the present invention will be described in detail.
The inorganic antimicrobial agent using the shell according to the present invention is characterized in that the shell is micronized and the surface is modified.
More specifically, the shell uses shells of shells (for example, oyster, petrification, abalone, shellfish, clam, scallop shell, pearl shell, pearl shell, shellfish, etc.) , Clean it with the unnecessary foreign matter removed. The washed shell is then hot-air dried and pulverized using a pulverizer.
In addition, shell shell itself is a kind of calcium carbonate which is a kind of calcareous ingredient. Calcium carbonate itself has antimicrobial activity to some extent, but in order to further improve antimicrobial activity, it is preferable that the content of calcium ionized in the shell powder is higher. And then baked at high temperature to increase the content (high purity) of ionized calcium.
Specifically, the shell is washed with a Niagara beater, followed by primary pulverization with a particle size of 1 to 5 mm, followed by pyrolysis at 700 to 900 ° C or higher for 5 to 7 hours or more, And then pulverized to a particle size of 5 to 80 탆 by using a ball mill or a grinder to make undifferentiated (smooth surface touch, spherical white powder).
Here, the particle size and firing conditions at the time of primary pulverization and undifferentiation are intended to improve the purity and yield, and when it is out of the above range, the purity and yield may be ineffective, but the present invention is not limited thereto, Or may vary depending on the type of base resin or binder resin to be described below.
The undifferentiated shell is surface-treated with silane or surface-treated with a fatty acid salt to thereby improve physical properties of the plastic material through moisture removal, which not only improves the dispersibility but also deteriorates the physical properties.
Specifically, 0.7 to 1.9 parts by weight of silane or 0.7 to 1.9 parts by weight of a fatty acid salt is subjected to surface treatment with stirring at 110 to 150 DEG C for 5 to 60 minutes with respect to 100 parts by weight of undifferentiated shell using a melt-kneading Henschel mixer .
At this time, if the content of the silane or fatty acid salt for surface treatment and the stirring conditions are out of the above range, the dispersibility and the compatibility may be lowered, but the present invention is not limited to this. The kind of shell or the base resin or binder resin It can be variable depending on the kind.
Hereinafter, the antibacterial plastic composition containing the inorganic antimicrobial agent using the shell according to the present invention will be described in detail as follows.
The antimicrobial plastic composition according to the present invention comprises 1 to 10 parts by weight of an inorganic antimicrobial agent based on 100 parts by weight of a base polymer. More specifically, an antibacterial plastic chip is manufactured through a two-step extrusion process in which an inorganic antimicrobial agent is kneaded in a kneader and then processed by using an extruder and a cutter to prepare a master batch and then mixed with the base resin and extruded again. In addition, this chip is used to be molded in accordance with a known molding method (for example, kneading, extrusion molding, etc.) of various target products.
If the content of the inorganic antimicrobial agent is less than 1 part by weight, antimicrobial activity may be insufficient. If the amount of the inorganic antibacterial agent is more than 10 parts by weight, the efficiency of improving the antimicrobial activity against the added amount is insufficient, which is uneconomical. Or may vary depending on the type of target product.
The base polymer may be any known polymer. Examples of the base polymer include acrylonitrile butadiene styrene copolymer (ABS), high-purity poly-styrene (HIPS), and polypropylene (PP).
Hereinafter, an antibacterial filter containing an inorganic antibacterial agent using a shell according to the present invention will be described in detail.
The antibacterial filter according to the present invention is formed by impregnating or applying an inorganic antibacterial agent using a shell to a fiber fabric or by mixing an inorganic antibacterial agent using a shell to a binder polymer to prepare an antibacterial binder and impregnating the fiber cloth with the antibacterial binder .
The fiber fabric may be a polyester fabric, a nylon fabric, or a cotton fabric.
On the other hand, when an antibacterial binder is prepared by mixing the inorganic antibacterial agent with a binder polymer without using the inorganic antibacterial agent directly, the antibacterial binder is prepared by mixing 5 to 20 parts by weight of an inorganic antibacterial agent using a shell with respect to 100 parts by weight of the binder polymer The binder polymer may be used alone or in combination of two or more selected from the group consisting of a polyurethane binder, an ethylene acrylic acid copolymer binder, an acryl binder and a polyester binder.
If the content of the inorganic antibacterial agent is less than 5 parts by weight, the antibacterial activity may be insufficient. If the content is more than 20 parts by weight, the antibacterial agent may be uneconomical. In addition, the impregnation process for the fiber fabric has already been variously known, and is not particularly limited as it is variable depending on the type of the filter.
Hereinafter, the present invention will be described more specifically based on examples, but the present invention is not limited by the following examples.
1. Production of inorganic antibacterial agent using shell
(Production Example 1)
The oyster shells were washed with a Niagara beater and then subjected to primary grinding with a particle size of 5 mm, followed by high temperature calcination for at least 5 hours at 700 ° C. and drying with hot air at 70 ° C. or less, , And 0.7 parts by weight of silane was stirred at 150 캜 for 5 minutes with respect to 100 parts by weight of the undifferentiated shell using a melt-kneading Henschel mixer to prepare an inorganic antibacterial agent.
(Production Example 2)
The abalone shells were washed with a Niagara beater and then subjected to primary grinding with a particle size of 1 mm, followed by high-temperature calcination at 700 ° C or higher for 5 hours or more and drying with hot air at 70 ° C or lower, To obtain an inorganic antibacterial agent. The inorganic antibacterial agent was prepared by stirring the mixture at 110 DEG C for 60 minutes with respect to 100 parts by weight of the undifferentiated shell using a melt-kneading Henschel mixer.
2. Evaluation of antimicrobial activity of inorganic antibacterial agent using shell
E. coli (KCTC 12006)) was cultured in LB-broth (bacterial culture medium) for 24 hours. Then, each of the antibacterial agents according to Preparation Examples 1 and 2 was placed in a 50 ml tube in an amount of 1.0 to 0.01% (w / v) in LB-broth, inoculated with the cultured bacteria, and cultured for 24 hours with shaking. After stopping the culture, the supernatant and the precipitate were collected and plated on a plate medium. The inoculated medium was again cultured at 37 ° C., and the number of bacteria was measured after 24 hours. The results are shown in Table 1 and FIG. 1 below.
(ma)
(ma)
(ma)
(mb)
[mb / ma]
As shown in Table 1 and FIG. 1, the inorganic antimicrobial agent using the shell according to the present invention has excellent antibacterial properties.
3. Antimicrobial plastic composition
(Example 1)
The inorganic antibacterial agent according to Production Example 1 was kneaded in a kneader at 120 캜 and extruded through an extruder to be cooled and cut to prepare a master batch. One part by weight of the master batch-type inorganic antibacterial agent was further kneaded to prepare 120 ° C. extruder to produce a chip form, which was then sheet-shaped through a twin-screw extruder at 210 ° C.
(Example 2)
The inorganic antimicrobial agent according to Production Example 2 was kneaded in a kneader at 120 ° C and extruded through an extruder to be cooled and cut to prepare a master batch. 6 parts by weight of masterbatches of the inorganic antibacterial agent were kneaded again to 100 parts by weight of HIPS ° C. extruder to produce a chip form, which was then sheet-shaped through a twin-screw extruder at 210 ° C.
(Example 3)
The inorganic antimicrobial agent according to Production Example 1 was kneaded in a kneader at 120 캜 and extruded through an extruder to be cooled and cut to prepare a master batch. 10 parts by weight of masterbatches of the inorganic antibacterial agent were further kneaded to 100 ° C. extruder to produce a chip form, which was then sheet-shaped through a twin-screw extruder at 210 ° C.
4. Evaluation of antibacterial activity of antibacterial plastic composition
Escherichia coli was cultured in LB-broth for 24 hours and inoculated with a solution for inoculation (PBS solution = 1: 100). Then, the antimicrobial plastic according to each of the above examples was cut into 3 × 3 cm to prepare a sample. 0.2 ml of the inoculum solution was placed, and a PE film cut into 4 × 4 cm was covered thereon. In the control group, 0.2 ml of the inoculum solution was placed between the PE film cut at 5 × 5 cm and the PE film cut at 4 × 4 cm. After inoculation, the samples were kept in a glass plate to maintain the humidity, and the bacteria were extracted after culturing at 37 ° C for 24 hours. The samples taken after a fixed time were extracted with 2.4 ml of saline (containing 0.005% Tween # 80), and 1.0 ml of the extract and the diluent were inoculated into the plate medium. The inoculated medium was again cultured at 37 ° C, After the lapse of time, the number of bacteria was measured, and the results are shown in Table 2 below and Fig.
[cfu / ml]
As shown in Table 2 and FIG. 2, the antimicrobial plastic composition according to the present invention has excellent antibacterial properties.
5. Manufacture of antibacterial filter
(Example 4)
The polyester fabric was impregnated with the inorganic antibacterial agent according to Preparation Example 1 to prepare an antibacterial filter.
(Example 5)
An antimicrobial binder was prepared by mixing 20 parts by weight of the inorganic antibacterial agent according to Production Example 1 with 100 parts by weight of the polyurethane binder, and the antibacterial binder was impregnated with the polyester fabric to prepare an antibacterial filter.
(Example 6)
5 parts by weight of the inorganic antibacterial agent according to Production Example 2 were mixed with 100 parts by weight of the ethylene-acrylic copolymer binder to prepare an antibacterial binder, and the polyester fabric was impregnated with the antibacterial binder to prepare an antibacterial filter.
(Comparative Example 1)
A polyester fabric without added antimicrobial agent was used.
6. Evaluation of antibacterial activity of antibacterial filter
Escherichia coli (Staphylococcus aureus) was cultured in a nutrient broth (shaking bath: 30 to 37 ° C, Overnight), and the cultured test bacteria were plated using a glass rod. The length of the clear zone was measured from the fabric in mm units after placing the filter cloth (1 x 2 cm, 2 pieces) on the LB-broth at 30 to 37 ° C for 24 hours. [Table 3] and Fig. 3 are shown below.
(clear Zone) [mm]
(0 rating)
(0 rating)
(0 rating)
(4th grade)
As shown in Table 3 and FIG. 3, the antibacterial filter according to the present invention has excellent antibacterial properties.
7. Evaluation of major performance of antimicrobial plastic composition according to the known test standard
Less (first grade)
Less (first grade)
Less (first grade)
(E. coli, Staphylococcus aureus)
Extraction efficiency
(Cd, Pb, Hg, Cr)
USEPA 3052
(ICP-OES, UV-vis)
More than
More than
More than
As shown in Table 4, the antimicrobial plastic composition according to the present invention has excellent antimicrobial properties and is excellent in physical properties without detecting harmful heavy metals.
As described above, the inorganic antibacterial agent using the shell according to the present invention, the antibacterial plastic composition containing the antibacterial agent, and the antibacterial filter containing the antibacterial plastic composition according to the present invention have been described through the above-mentioned preferred embodiments and their excellence has been confirmed. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
Characterized in that the shell is micronized and the surface is modified.
The shell angle,
Characterized in that it is first pulverized with a particle size of 1 to 5 mm, fired and dried, and further pulverized to a particle size of 5 to 80 탆 and pulverized to be undifferentiated.
The undifferentiated shell angle
Characterized in that the inorganic antibacterial agent is modified by surface treatment with silane or surface treatment with a fatty acid salt.
The undifferentiated shell angle
0.7 to 1.9 parts by weight of silane was surface-treated with stirring with respect to 100 parts by weight of undifferentiated shell,
Characterized in that 0.7 to 1.9 parts by weight of a fatty acid salt is surface-treated with stirring with respect to 100 parts by weight of undifferentiated shell.
An antimicrobial plastic composition comprising an inorganic antibacterial agent, which comprises 1 to 10 parts by weight of an inorganic antimicrobial agent using a shell, based on 100 parts by weight of a base polymer.
Wherein the base polymer comprises:
An antibacterial plastic composition comprising an inorganic antimicrobial agent, which is used alone or in combination of two or more of ABS (acrylonitrile butadiene styrene copolymer), HIPS (highimpact poly styrene) or PP (polypropylene).
An inorganic antibacterial agent using a shell is impregnated or applied to a fiber fabric,
Or an inorganic antibacterial agent using a shell to a binder polymer to prepare an antibacterial binder, and impregnating the fiber fabric with the antibacterial binder.
The antimicrobial binder may contain,
An antimicrobial filter comprising an inorganic antibacterial agent, which is obtained by mixing 5 to 20 parts by weight of an inorganic antibacterial agent using a shell with respect to 100 parts by weight of a binder polymer.
The binder polymer may contain,
Wherein the binder is selected from the group consisting of a polyurethane binder, an ethylene-acrylic acid copolymer binder, an acryl binder and a polyester binder. Antibacterial filter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102355247B1 (en) * | 2021-03-16 | 2022-01-24 | 이지훈 | Manufacturing method of inorganic antibacterial agent for construction materials |
| KR102593960B1 (en) * | 2022-07-12 | 2023-10-25 | 박태운 | Antibacterial deodorant composition containing titanium dioxide photocatalyst |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102271622B1 (en) | 2019-08-21 | 2021-07-01 | 주식회사 씨피알에스앤티 | Packaging container with antimicrobial and antifungal activity and method for manufacturing the same |
| KR102545463B1 (en) | 2021-01-15 | 2023-06-20 | 한남대학교 산학협력단 | Antifungal and antibacterial shell powder |
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| JP2002085980A (en) * | 2000-06-02 | 2002-03-26 | Nittetsu Mining Co Ltd | Manufacturing method of metal-carrying inorganic powder |
| JPWO2004089092A1 (en) * | 2003-04-09 | 2006-07-06 | 出光テクノファイン株式会社 | Deodorant / antibacterial powder formulation, production method thereof, and product using the powder formulation |
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| KR100501748B1 (en) | 2003-10-24 | 2005-07-18 | 주식회사 두인이엔지 | Method for manufacturing filter member |
| KR100865117B1 (en) | 2007-05-25 | 2008-10-27 | 주식회사 에너지하우스 | Method of preparing plastic articles with excellent antibacterial and antifungal properies |
| KR20110014001A (en) | 2009-08-04 | 2011-02-10 | 주식회사 바이오테카 | Antibacterial and antifungal plastic, its product and its manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102355247B1 (en) * | 2021-03-16 | 2022-01-24 | 이지훈 | Manufacturing method of inorganic antibacterial agent for construction materials |
| KR102593960B1 (en) * | 2022-07-12 | 2023-10-25 | 박태운 | Antibacterial deodorant composition containing titanium dioxide photocatalyst |
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