KR101796074B1 - Bioplastic with improved insect-proof and antimicrobial and a method there of - Google Patents

Abstract

The present invention relates to bioplastics which have improved antimicrobial and antimicrobial properties and bioplastics which have improved antimicrobial and antimicrobial properties of the present invention are used for packaging food safety products such as sheet and film extrusion molding And can be recycled and harmless to the human body. Therefore, it is expected to be highly usable as a usable material for environmentally friendly films and sheets having excellent economy and food safety.

Description

Technical Field [0001] The present invention relates to a bioplastic having improved antibacterial and antimicrobial properties and a method for producing the same.

The present invention relates to bioplastics having improved antibacterial and antimicrobial properties and a process for producing the same.

The majority of currently used food containers are packaged in containers made of paper material made of polystyrene foam or polyethylene plastic. The thermoplastic resin, polystyrene, contains styrene monomers that can release environmental hormones, which are carcinogens, when pyrolysis or chemical dissociation occurs. The compound is a kind of 'endocrine disrupter' that interferes with or disrupts the action of hormones into the body of an animal or human. The compound has toxicity comparable to that of cadmium and is a toxic substance which is reported to be harmful to reproductive organs due to infertility in female, infertility and sperm count due to adverse effects on liver, kidney, heart and lungs .

Recently, researches have been conducted to develop food packaging material harmless to human body by using natural plant material. In Korean Patent Laid-Open No. 1020110134987, organic natural powders such as jute, hemp, flax, bamboo, hemp, sisal, rice straw, rice hull, wood powder and green tea which are natural plant materials are added to a biodegradable resin, , Followed by extrusion or injection molding to produce a biocomposite. However, by using natural plant material as a bio-plastic composition, there is a high risk of contamination of pests and microorganisms.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a bioplastic composition having improved antibacterial and antimicrobial properties.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a bioplastic composition having improved antibacterial and antimicrobial properties.

However, the technical problem to be solved by the present invention is not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

Hereinafter, various embodiments described herein will be described with reference to the drawings. In the following description, for purposes of complete understanding of the present invention, various specific details are set forth, such as specific forms, compositions and processes, and the like. However, certain embodiments may be practiced without one or more of these specific details, or with other known methods and forms. In other instances, well-known processes and techniques of manufacture are not described in any detail, in order not to unnecessarily obscure the present invention. Reference throughout this specification to "one embodiment" or "embodiment" means that a particular feature, form, composition, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Accordingly, the appearances of the phrase " in one embodiment "or" an embodiment "in various places throughout this specification are not necessarily indicative of the same embodiment of the present invention. In addition, a particular feature, form, composition, or characteristic may be combined in any suitable manner in one or more embodiments.

In one embodiment of the present invention, the term " biomass " or "herbaceous biomass" refers to a plant produced by pulverizing a single-year herbaceous plant such as a grain bark, cornstalks, cornstalks, . The powdered monsoon herbaceous biomass is basically a natural product, and contains water and gas. It has a low specific gravity and has a large specific surface area when compounded with an olefin resin and has a low coefficient of friction. Therefore, it is not easy to raise the temperature up to the softening point have. This is because ultrafine powder has a large specific surface area of natural-particle-controlled natural material, so that it easily releases heat and low specific gravity when it is kneaded with resin, resulting in low friction coefficient. In the present invention, the water removal of the biomass, which functions as an average moisture content of 8 to 10% at the time of powdering, was controlled by a chemical method using a mixed powder method. The reaction product prevents the aggregation of the biomass, plays a role of a filler, increases the specific gravity of the fine powder mixture while being mixed and dispersed with the biomass, serves as a filler in the resin and compound, . For the purpose of preventing moisture reabsorption, fatty acid can be used in the biomass as a surface coating agent in an amount of 2 to 3% by weight. In order to give compatibility with the resin, silane is spray coated in the compounding process, Is in a trace amount of 0.3 to 2% by weight with respect to the biomass, it is preferable to chemically modify and coat the mixture by spraying a mixed solution mixed with the fatty acid. In the present invention, 2 to 5% by weight of a mixed solution obtained by mixing fatty acid and silane in a ratio of 3: 1 can be used.

In one embodiment of the present invention, the particle size control of the biomass is significantly different according to the amount of water of the existing function, and the particle size distribution is broadened by recombination by the number of bonds after the powder process, The present invention provides a composition for removing water by a chemical method at the time of powder. In one embodiment, in the case of soybean bleached by mixing 5 wt% of calcium oxide (CaO) with respect to biomass, the particle size distribution was narrower than that of the untreated powder (average particle diameter 45 micrometer) Also, it was finely controllable from 7 to 15 micrometers. The particle size of the powder is uniformly dispersed evenly on the surface of the plastic during the surface modification and coating, so that the content of biomass can be increased during the production of the bioplastic, thereby ensuring economical efficiency. This can be economically viable by compensating for the rising cost of adding antimicrobial and insecticidal functions to secure future food distribution safety.

In one embodiment of the present invention, the term " bioplastics " is a plastic produced by using a polyester in a microorganism body. The plastic is decomposed by bacteria in the soil and easily fused to a living body. Is also used. The bioplastics in the present invention may contain 40 to 80% by weight of one or more kinds of synthetic resins selected from the group consisting of polyolefins, polyesters, polyamides, polyethers and polyvinyl polymers, a herbaceous biomass Wherein the composition comprises 20 to 50% by weight of a powder, 1 to 10% by weight of a shell powder, 0.1 to 5% by weight of a tea extract, 0.1 to 5% by weight of a tea extract, 1 to 20% by weight of a surface modifier, 0.5 to 3% by weight.

Examples of the synthetic resin used in the present invention include polyolefins such as polyethylene, ethylene copolymer, polypropylene, propylene copolymer, poly (4-methyl-1-pentene) and copolymers thereof, polyethylene terephthalate, Polyamides (PA) such as polyesters, such as terephthalate, polycarbonate, polyarylate and copolymers thereof, nylon and copolymers thereof, polyacetals, polyphenylene oxide, polysulfone, polyphenylene sulfide, Polyethers such as polyether ether ketone and copolymers thereof, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl acetal, polystyrene, polymethyl methacrylate, and copolymers thereof Polyvinyls, etc. The amount of the synthetic resin in the bio-plastic composition of the present invention is 10 to 50 It is preferably used in an amount in wt%. If it is used in an amount of less than 10% by weight, it is difficult to use the product as a product because of its rapid dispersion and compatibility, and when it is used in an amount exceeding 50% by weight, the resin content is excessively low. In order to maintain sufficient strength of the product state, it is more preferable to use it in an amount of 30 to 50 wt% of the total composition.

The compatibilizer used in the present invention is a material which imparts compatibility by eliminating the dissociation between the non-polar synthetic resin and the polar herbaceous agricultural waste. Examples of the compatibilizer include glycidyl methacrylate, ethylene vinyl alcohol (EVA), polyvinyl alcohol (PVA), ethylene vinyl acetate and butyl acrylate copolymer (EBA), and the like, which are conventionally used in the art. Commercial products include, for example, EBA-MA-G, ADPOLY PH-200, EM-200 and SMS-554 (Honam Petrochemical). The compatibilizing agent is preferably used in an amount of 0.5 to 5% by weight of the bioplastic composition of the present invention. If it is used in an amount of less than 0.5% by weight, compatibility may not be sufficient and interlayer separation phenomenon may occur. If it is used in an amount exceeding 5% by weight, economical effect can not be obtained. More preferably, it is used in an amount of 0.5 to 3.0 wt% based on the total weight of the composition.

The plastic lubricant used in the present invention can be used for reinforcing the bonding or affinity between the blend containing the herbaceous biomass powder and the synthetic resin and for reducing the frictional heat generated during the extrusion, As a component to be added, even if these are added, the mechanical properties can be maintained while maintaining similar workability to the base material. As the activating agent, one or a mixture of two or more selected from the group consisting of stearates, palmitates, and laurates, which are highly environmentally friendly natural products, may be used. More preferably, calcium stearate, zinc stearate or a mixture thereof may be used. The lubricant is preferably used in an amount of 0.5 to 3% by weight of the bioplastic composition of the present invention. If it is used in an amount less than 0.5% by weight, the effect as a lubricant sufficient for product molding can not be obtained. If it is used in an amount exceeding 3% by weight, defects may be generated inside the product, ), Which can not be obtained economical effect as well as hindering aesthetic beauty.

The oxidizing agent for decomposing plastics used in the present invention may be added to decompose polymer chains and may be used without limitation as long as it is an oxidizing agent for decomposing plastics commonly used in the art. It is preferably used in an amount of 1% by weight. When the decomposing oxidizing agent is used in an amount of less than 0.1 wt%, the decomposition effect is insignificant, and when it is used in an amount exceeding 1 wt%, the economical efficiency is low.

In one embodiment of the present invention, the term " insect pest " For example, insecticides such as camphor and naphthalene, insecticides for building worms by volatile components such as phosphorus, chlorine, and phosphorus, which are positively toxic to larvae, are widely used. Elan NK, BL, Imperial Chemical Industries Ltd., England), Mittin FF (Mittin FF, Switzerland JR Geigy SA (trade name) manufactured by IG Farbenindustrie AG, Germany) Etc.), and DDT is also used. Parathion also has a powerful insecticidal effect. Such insect proofing is performed in the dyeing process. As for the insect control of wood, it is processed to increase the usable period of wood. There are many advantages such as relatively low cost of wood and easy processing, but when it becomes impossible to use for a long time due to bruising, combustion, Not many. As a countermeasure, the processing of wood preservation, wood fire prevention, wood insect treatment is performed. In the case of wood for civil use, preservative treatment often serves as an insecticide.

In one embodiment of the present invention, " antibacterial " means suppressing the propagation of microorganisms. Antimicrobial agents can be broadly divided into organic antimicrobial agents, inorganic antimicrobial agents and natural antimicrobial agents. Organic antimicrobial agents are organic antimicrobial agents that chemically synthesize organic substances and have excellent antimicrobial activity. However, they should be used in consideration of stability to human body and other environment. In addition, the cost is lower than that of the inorganic antibacterial agent, and even if a small amount is added, the antimicrobial activity can be obtained, but the heat resistance is low. The inorganic antimicrobial agent includes a type in which silver is supported on a zeolite, zirconium phosphate, a low molecular weight glass or the like which is an inorganic carrier. Therefore, it has excellent stability and heat resistance and can exhibit excellent persistence depending on the application method. However, it has a disadvantage in that it has a higher content and higher price than organic antibacterial agent. Natural antimicrobial agents refer to components such as hinokitiol, chitosan, and phytoncide, which are obtained from nature, but they are limited to industrial applications when considering antibacterial activity and price.

In one embodiment of the present invention, the term " shell " is a shell of shellfish, formed by secretion from the outer skin layer of the outer shell, and divided into the following three layers. 1) Periostracum: It is composed of a light protein called conchiolin, which is an outer thin skin. 2) Prismatic layer: The white part of the middle layer is composed of crystalline columns of carbonate lime. Many beautiful colors appearing on the surface of the shell are mainly represented by the pigments contained therein. 3) Nacreous layer: It is an inner layer of the shell and consists of a thin layer of multiple layers. It consists of calcareous and conchiorinic. The use of shells varies greatly. It is used as a fume or an antacid, as a powder, as a paint, as a mushroom, as a fertilizer, and also as a material for shellfish. The shells of the clams are used as containers and stones for color fading, and the shells of the abalone shells and the shells of the luminous shells are used only for the nacre, building materials, and decoration. Oyster shells have recently been used as nutritional supplements to supplement calcium deficiency.

In one embodiment of the present invention, the term " silver nitrate " means a chemical formula of AgNO ₃ , a molecular weight of 169.87 g / mol, colorless and odorless white crystal, melting point 212 ° C, specific gravity 4.35. The reaction is obtained by reacting silver with nitric acid. The reaction formula is Ag + 2 HNO ₃ → AgNO ₃ + NO ₂ + H ₂ O. It does not dissolve well in alcohol anhydride, benzene, acetone, etc., but it melts slightly in ether and methanol and dissolves well in water. Pure silver nitrate is relatively stable to light, and when it reacts with tartaric acid, sucrose, aldehyde, etc., silver is reduced and a silver reaction occurs. (Ag ⁺ (aq) + X- (aq) ^- > AgX (s), X = Cl, Br, I). Adding excess ammonia water results in a complexation of [Ag (NH ₃ ) ₂ ] NO ₃ . When silver is dissolved in an acid and evaporated, an anhydride is precipitated. In addition to silver reaction, it is used as a raw material for silver bromide, silver plating, analytical reagent, coloring of ceramics, and corrosive agent such as ivory. It has a protein coagulation action and corrodes the skin. As medicines, they show corrosion, disinfection, sterilization and convergence according to their concentration, and they are applied to skin or mucous membrane by applying dilute solution. When preserving, keep the stopper firmly in the dark. The drug (劇 药) is 10 grams of lethal dose.

In one embodiment of the present invention, the term " housewife " is also referred to as " Guju ", and refers to seeds of leek (Allium tuberosum Rottler). Flat on one side, slightly protruding on the other, slightly rounded on the lower side, slightly pointed on the upper side, 0.3 to 0.4 cm in length, and 0.2 to 0.3 cm in width. The outer surface is black, one side is flat and the other side is slightly protruding. There is irregular net-like wrinkles when viewed with a magnifying glass, and the quality is hard. It has a distinctive smell and the taste is a little spicy and warm. Knee and waist are cold and sore, erectile dysfunction and diarrhea, severe and severe pregnancy (肝 肾) is not pregnant is caused by the treatment of bilateral weakness. It is known that it controls urine, muscles and bones. Pharmacological effects have been reported in hypertension and cardiac excitability.

In one embodiment of the present invention, the term " exudate " is a medicament prepared by drying the roots of the extract, and the skin of the extract is called exudate, and the leaves are similar to the thistle leaves. It is a perennial plant belonging to the family Asteraceae. It grows about 50 centimeters tall and is distributed in Korea, Manchuria, and Japan. It has a peculiar smell, taste a little bit weary, and if you chew it is viscous and its quality is warm. It is weak in the function of 脾 胃 (脾胃), news, mala appearance, yellow color of the face is diluted, the diarrhea is good, and the water is stagnant, the whole body is swollen, helps digestion of water when not digested. It can also be used for chest leaks, coughs, clear sputum due to accumulation of water and wetness in the spleen. 脾气 (脾气) When sweating naturally on the skin due to weakness, use. It is also known to be used for cold and limb pain with gastrointestinal disorders.

In one embodiment of the present invention, a composition comprising 40 to 80% by weight of a polyethylene resin, 20 to 50% by weight of herbaceous biomass powder, 1 to 10% by weight of a shell powder, 0.1 to 5% Wherein the herbaceous biomass powder is prepared by adding 5 to 40% by weight of uncoated calcium carbonate to 50 to 95% by weight of herbal powder having a water content of 60 to 90% by weight, , And dried at 100 ° C to 200 ° C, wherein the herbaceous biomass powder is an insecticidal / antimicrobial bio-plastic composition comprising an insecticide / Wherein the shell powder is subjected to a first high temperature treatment at 500 ° C to 1000 ° C, a second high temperature treatment at 1000 ° C to 2000 ° C, Which is crushed with a powder having an average particle diameter of 1 to 5 micrometers after being subjected to a high temperature treatment at a temperature of 0 to 3 占 폚, and 1 liter of water is added to 1 kg of the furniture extract, Wherein the extract is prepared by adding 1 liter of water to one kilogram of water and heating the mixture at 100 to 120 ° C for 3 to 5 hours, Wherein the bioplastic composition comprises 1 to 20% by weight of a surface modifying agent, 1 to 20% by weight of a surface modifying agent, and 1 to 20% by weight of a surface modifying agent, wherein the bioplastic composition is a commercially available insecticidal / antibacterial bioplastic composition, An antimicrobial bio-plastic composition further comprising 0.5 to 5% by weight of a lubricant and 0.5 to 3% by weight of a plastic lubricant The.

In another embodiment of the present invention there is provided a pharmaceutical composition comprising 40 to 80% by weight of a polyethylene resin, 20 to 50% by weight of herbal biomass powder, 1 to 10% by weight of shell powder, 0.1 to 5% Wherein the herbaceous biomass powder comprises 50 to 95% by weight of herbal powder having a water content of 60 to 90% and 5 to 40% by weight of uncoated calcium carbonate Wherein the herbaceous biomass powder is a herbaceous biomass powder prepared by adding the herbicide-based biomass powder prepared by drying at 100 to 200 ° C, Wherein the shell powder is subjected to a high-temperature treatment at a temperature of 500 ° C to 1000 ° C at a temperature of 1000 ° C to 2000 ° C The present invention also provides a method for producing an insect repellent / antimicrobial bio-plastic composition which is treated at a high temperature of 500 ° C to 1000 ° C and then crushed with a powder having an average particle size of 1 to 5 micrometers, The present invention provides a method for producing an insecticidal / antibacterial bio-plastic composition prepared by adding 1 liter of water to 1 kg of furniture and heating the mixture at 100 to 120 ° C for 3 to 5 hours, Liter, and the mixture is heated and concentrated at 100 to 120 ° C for 3 to 5 hours, wherein the bio-plastic composition comprises a nitric acid-insoluble antimicrobial bio-plastic Wherein the bioplastic composition comprises 1 to 20% by weight of a surface modifier, 0.5 to 5% by weight of a compatibilizer, Provides a process for the production of insecticide, antibacterial bioplastic composition further comprises a lubricant, a tick from 0.5 to 3% by weight.

Hereinafter, the present invention will be described in detail.

The bioplastics which improve the insecticidal and antibacterial properties of the present invention can be used for extrusion molding of sheets and films used for food packaging, which is a material for food packaging for distribution safety, and can be recycled and harmless to the human body, High utilization is expected as a usable material for eco-friendly films and sheets having excellent food distribution safety.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a comparative example and insecticidal / antibacterial bio-plastic pellet according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to Examples. It will be apparent to those skilled in the art that these embodiments are only for describing the present invention in more detail and that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention .

Example  1: insecticide / antibacterial master batch (Master Batch, M.B )

For the preparation of the antimicrobial masterbatch, the shell was calcined at 800 ° C to 1200 ° C and pulverized to prepare 3 micrometer powder, and silver nitrate was prepared. The above shell powder and the raw materials for manufacturing bioplastics were mixed as shown in Table 1 to prepare insecticidal / antibacterial master batch powders.

material additive And function ratio Base polymer LLDPE (Honam UL814) 40 to 80 Minerals Calcium carbonate 5 to 15 Inhibitor Herbaceous system inhibitor 10 Oxidation promoter Benzophenone, benzoyl peroxide etc., citric acids, malic acid etc., glucose (sorbitol etc) 0.5 to 5 Oxidant Unsaturated fatty acid 1-2 Wax Wax 1-2 Biomass Carbon-based natural herbaceous biomass 20 to 50 Insect surface modifier Insect 1-10 Shell powder Antibacterial 1-10 Silver nitrate Antibacterial 0.01-1

Example  2: Antimicrobial / antibacterial bio plastic Pellet  Produce

The mixture of the insecticidal / antibacterial master batch powder and the bioplastic raw material of Example 1 was placed in an extruder at 170 to 180 ° C and air-cooled and rotary-dried by a strand cutting method. Thereafter, as shown in Table 2, bioplastic pellets having a diameter of 1 to 2 millimeters including shell powder and silver nitrate as antiseptic / antibacterial agents were prepared.

division Comparative Example  One Manufacturing example  One Remarks Binder resin 58.5% 50.0% UL814 Honam Shell powder 8.0% Insecticide / Antimicrobial Silver nitrate 0.5% Insecticide / Antimicrobial EH-X 10.0% 10.0% Freshness Liquid stock solution Biomass 20.0% 20.0% CoPo (200 mesh) Wax 0.5% 0.5% Lubricant 1.0% 1.0% Ca-ST OM1T 10.0% 10.0% 2 to 3 micrometers in particle size Sum 100.0% 100.0%

The bio-plastic pellets of the production example prepared at the above mixing ratio are shown in Fig.

Example  3: Manufacture of multilayer insecticide / antibacterial bio-plastic sheet

Layer film structure in which insecticide materials are introduced into the outer layer and antimicrobial materials are introduced into the inner layer through a single process of the IPP coextrusion method. Specifically, the film forming the food packaging material is formed at a certain ratio to form the insect repellent composition on the 1st feed film (biaxially oriented insect repellent OPP) or the 2nd feed (non-extensible multi-layer insect repellent functional film) %, And an antimicrobial composition was prescribed to the inner layer by 5 to 15%. A multilayer insect antimicrobial bio-plastic sheet was prepared by the above-mentioned method.

Example  4: Antimicrobial test of multilayer insecticide / antibacterial bio-plastic sheet

5 x 5 cm ² of the film was attached to a culture dish in which staphylococci (S. aureus) and E. coli were cultured at the same concentration, and the reduction rate of bacteria was measured after 24 hours. The results are shown in Table 3.

Bacterium Sample  persons Immediately after inoculation (C) After 24 hours (A) Staphylococcus The 3D sheet of Comparative Example 1 1.1 X 10 ⁶ 3.2 X10 ⁵ The 3D sheet of Production Example 1 1.1 X 10 ⁶ 0.5 X 10 ⁵ Escherichia coli The 3D sheet of Comparative Example 1 1.4 X 10 ⁶ 1.3 X 10 ⁴ The 3D sheet of Production Example 1 1.4 X 10 ⁶ 0.5 X 10 ³

Example  5: Multi-layer insect repellent · Antimicrobial bio-plastic sheet Loneliness  inspection

In the acrylic circular test container, the bio plastic sheet of the comparative example and the 3D sheet of the preparation example prepared by the method of Example 3 was attached to the upper end, and 20 larvae of the 4th instar larvae were introduced. After 7 days in an incubator adjusted to 28 to 60% relative humidity of 60 to 70%, the distribution pattern of the moth larvae was examined and repeated eight times. As a result, the number of larvae was significantly decreased in all of 3D sheets 1 to 4 as compared with the control group. The results are shown in Table 4.

process Phase (processing surface) Ha The 3D sheet of Comparative Example 1 10.60 ± 1.31 A 10.60 ± 1.31 A The 3D sheet of Production Example 1 7.63 ± 1.27 A 12.37 ± 1.27 A

Example  6: Manufacture of antiseptic / antimicrobial bio-plastics including furniture and / or white goods

For the production of insecticidal / antibacterial bioplastics containing household and / or vinegar, household extracts and extracts were prepared.

The extracts were prepared by pouring 1 liter of water into 1 kg of furniture and boiling for 3 hours at 100 ° C or higher for 1 hour. Lt; / RTI > and concentrated.

The insecticidal / antibacterial bio-plastic composition including the above-mentioned furniture and / or extract was composed as shown in Table 5 below.

division Manufacturing example  2 Manufacturing example  3 Manufacturing example  4 Manufacturing example  5 Binder resin 50.0% 50.0% 50.0% 50.0% Shell powder 8.5% 7.5% 7.5% 7.5% Household extract - 1.0% - 0.5% Dried extract - - 1.0% 0.5% EH-X 10.0% 10.0% 10.0% 10.0% Biomass 20.0% 20.0% 20.0% 20.0% Wax 0.5% 0.5% 0.5% 0.5% Lubricant 1.0% 1.0% 1.0% 1.0% OM1T 10.0% 10.0% 10.0% 10.0% Sum 100.0% 100.0% 100.0% 100.0%

Example  7. Antimicrobial properties of antimicrobial and antimicrobial bioplastics including furniture and / or household articles

The bio-plastic pellets prepared from the compositions of Production Examples 2 to 5 of Example 6 were pulverized, powder was applied to an agar medium inoculated with 1.4 x 10 < ⁶ > of E. coli, and cultured for 6 hours. After 6 hours, the agar medium in which the E. coli was inoculated was diluted in distilled water and the number of remaining E. coli cells was measured. The results are shown in Table 6.

Bacterium Sample  persons Immediately after inoculation (C) 6 After hours (A) Escherichia coli The 3D sheet of Production Example 2 1.4 X 10 ⁶ 5.2 X10 ⁴ The 3D sheet of Production Example 3 1.4 X 10 ⁶ 3.1 X10 ³ The 3D sheet of Production Example 4 1.4 X 10 ⁶ 6.8 X10 ⁵ The 3D sheet of Production Example 5 1.4 X 10 ⁶ 2.8 X10 ³

As a result, it was found that the number of residual E. coli (3.1 X 10 ³ ) of Production Example 3, which additionally contained the extract of the household, was higher than that of Production Example 2 (5.2 X 10 ⁴ ) , And it was found that insecticidal and antibacterial effects were further enhanced by addition of the household extract. When the extract was further added, the number of residual E. coli (6.8 X 10 ⁵ ) was higher than that of Preparation Example 2 containing only shell powder, and the insecticidal / antibacterial effect was further reduced. However, it was found that the number of residual E. coli was decreased to a great extent (2.8 × 10 ³ ), and the insecticidal / antibacterial effect was greater than that of the case containing only the households.

Claims (16)

Comprising insecticide / antimicrobial agent comprising 40 to 75% by weight of a polyethylene resin, 20 to 50% by weight of herbaceous biomass powder, 1 to 10% by weight of a shell powder, 0.1 to 5% by weight of a tea extract, and 0.1 to 5% Bioplastic composition.
The method according to claim 1,
Wherein the herbaceous biomass powder is an herbaceous biomass powder prepared by adding 5 to 40% by weight of uncoated calcium carbonate to 60 to 95% by weight of a herbal powder having a water content of 60 to 90% Bioplastic composition.
The method according to claim 1,
Wherein the herbaceous biomass powder is a powder derived from an ox, a wheat bark, a scalp or a rice husk.
delete The method according to claim 1,
The insecticidal / antibacterial bio-plastic composition of the present invention is prepared by adding 1 liter of water to 1 kg of furniture and concentrating it by heating at 100 ° C to 120 ° C for 3 to 5 hours.
The method according to claim 1,
The insecticidal / antibacterial bio-plastic composition is prepared by adding 1 liter of water to 1 kg of extract and concentrating by heating at 100 ° C to 120 ° C for 3 to 5 hours.

The method according to claim 1,
Wherein the bio-plastic composition further comprises 0.01 to 1% by weight of silver nitrate.
The method according to claim 1,
Wherein the bio-plastic composition further comprises 1 to 20 wt% of a surface modifier, 0.5 to 5 wt% of a compatibilizer, and 0.5 to 3 wt% of a plastic lubricant.
Comprising insecticide / antimicrobial agent comprising 40 to 75% by weight of a polyethylene resin, 20 to 50% by weight of herbaceous biomass powder, 1 to 10% by weight of a shell powder, 0.1 to 5% by weight of a tea extract, and 0.1 to 5% A method for manufacturing a bio-plastic composition.
10. The method of claim 9,
Wherein the herbaceous biomass powder is an herbaceous biomass powder prepared by adding 5 to 40% by weight of uncoated calcium carbonate to 60 to 95% by weight of a herbal powder having a water content of 60 to 90% A method for manufacturing a bio-plastic composition.
10. The method of claim 9,
Wherein the herbaceous biomass powder is a powder derived from an opium, a wheat bran, a scalp or a rice husk.
delete 10. The method of claim 9,
The method of manufacturing an antifungal and antibacterial bio-plastic composition according to claim 1, wherein 1 liter of water is added to 1 kg of the furniture and the mixture is heated at 100 ° C to 120 ° C for 3 to 5 hours.
10. The method of claim 9,
Wherein said extract is prepared by adding 1 liter of water to 1 kg of extract and concentrating by heating at 100 ° C to 120 ° C for 3 to 5 hours.
10. The method of claim 9,
Wherein the bio-plastic composition further comprises from 0.01 to 1% by weight of silver nitrate.
10. The method of claim 9,
Wherein the bioplastic composition further comprises 1 to 20 wt% of a surface modifier, 0.5 to 5 wt% of a compatibilizer, and 0.5 to 3 wt% of a plastic lubricant.

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