KR101439220B1 - An antibacterial SMC water tank using antibacterial SMC panel - Google Patents

Abstract

Disclosed is an antibacterial sheet molding compound (SMC) water tank. According to the present invention, an antibacterial SMC water tank includes a floor frame (20) installed on a supporting surface; a body (50) installed at an upper portion of the floor frame and formed with a plurality of antibacterial SMC panels (40); an external reinforcing device (60) fixed to an external side wall of the body (50) to connect and support the antibacterial SMC panels (40); and an internal reinforcing device (70) fixed to an internal side wall of the body (50) to support the body (50). Each of the antibacterial SMC panels (40) includes 20-25 wt% of calcium carbonate, 30-40 wt% of glass fiber, 19-24 wt% of unsaturated polyester resin, 4-9 wt% of a low shrinking agent, 0.77-1.6 wt% of zinc stearate, 1.23-2.5 wt% of a coloring agent, and 15-20 wt% of natural antibacterial and deodorant.

Description

[0001] The present invention relates to an antibacterial SMC water tank using an antibacterial SM seed panel,

The present invention relates to an antimicrobial SMC (sheet molding compound) water tank, and more particularly, to an antimicrobial SMC panel using an antimicrobial SMC panel which contains an antimicrobial agent of an environmentally friendly material and does not generate microorganisms or water- Lt; / RTI >

Water tanks for storing and distributing water are generally installed on the roof of a building, mainly made of iron plate, FRP, stainless steel, SMC.

In recent years, panels manufactured from SMC (Sheet Molding Compound) have excellent mechanical properties and excellent corrosion resistance and moldability. Therefore, panels made of SMC can be used as square box or cylindrical A water tank constructed and assembled is widely used.

Particularly, since the prefabricated water tank assembled and completed at the installation site using the SMC panel as described above is easy to install by assembling the SMC panel and the size of the tank can be arbitrarily adjusted, to be.

However, even in the case of such an SMC panel, if it is exposed to water for a long period of time, it does not inhibit the occurrence of microorganisms or water mosses, and odors are generated during the growth of these microorganisms or water mosses.

In recent years, water tank is manufactured using an SMC panel made by mixing antimicrobial materials during the manufacturing process. However, in the SMC molding process in which the antimicrobial material added even in the case of the SMC panel is subjected to high temperature and high pressure, There is a limit in that it can not exhibit an effective antimicrobial effect because it loses property.

In addition, as shown in the following Prior Art 1, efforts are being made to manufacture SMC panels containing environmentally friendly materials due to the recent increase in interest in the environment. Since these environmentally friendly materials are likely to undergo chemical transformation at high temperatures, Is not expressed at an expected level.

On the other hand, since the water pressure increases as the capacity of the water tank increases, it is necessary to install a separate internal stiffener inside the water tank to prevent deformation of the water tank due to the water pressure. Since the internal stiffener is in constant contact with the water in the water tank Stress corrosion cracking occurs when exposed to a specific corrosive environment such as exposure to chlorine due to continuous static tensile stress such as load stress and residual stress, thereby causing structural stability to deteriorate.

The heat-shrinkable tube disclosed in the following Prior Art 2 is for auxiliary support of the square pipe, which is also exposed to water, so that corrosion prevention is required. The brackets and bolts disclosed in the above-mentioned prior art 2 are coated with epoxy-based lead-free paint or molded by synthetic resin, which is also insufficient to prevent erosion by water.

Prior Art 1: Korean Patent Laid-Open Publication No. 1009-0124480 (published on Dec. 3, 2009) Prior Art 2: Korean Utility Model Registration No. 0358139 (Published on July 27, 2004)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problem, and it is an object of the present invention to provide an antibacterial SMC which exhibits excellent antibacterial and deodorizing effects by minimizing changes in components added even under high temperature and high pressure conditions, And an antibacterial SMC water tank using the panel.

The present invention also relates to an internal reinforcing device applied to the inside of a water tank to prevent chemical erosion and at the same time, when the inside of a water tank is inspected or cleaned, Another object of the present invention is to provide an antibacterial SMC water tank that prevents contamination of microorganisms.

In order to achieve the above object, the present invention provides an antibacterial SM seed tank using an antibacterial SM seed panel, comprising: a floor frame installed on a supporting surface; a plurality of antibacterial SMC panels installed on the bottom frame; An external reinforcing device 60 fixed to the outer side wall of the body 50 to connect and support the plurality of antibacterial SMC panels 40, Wherein the composition comprises 20 to 25% by weight of calcium carbonate, 30 to 40% by weight of glass fibers, 30 to 40% by weight of an unsaturated poly From 19 to 24% by weight of an ester resin, from 4 to 9% by weight of a water-reducing agent, from 0.77 to 1.6% by weight of zinc stearate, from 1.23 to 2.5% by weight of a colorant and from 15 to 20% by weight of natural antibacterial and deodorant.

The natural antimicrobial and deodorant may be selected from the group consisting of green tea extract powder, mugwort extract powder, zeolite powder, granulated green tea powder, 1: 1: 2.

The powder preferably has a particle size of 500 to 3000 mesh.

The internal reinforcement device 70 includes a water tank mounting part 120 fixed to an inner wall of the body 50 and a support mounting part 140 protruding from the water tank mounting part 120 And a round bar auxiliary support 300 which is inserted into the support bar mounting part 140 of the bracket 100. The round bar auxiliary bar 300 is made of stainless steel And a coating layer 340 made of polyethylene terephthalate (PET) formed on the surface of the main body 320. The thickness of the coating layer 340 of the round bar auxiliary support 300 is And the coating layer 340 is mixed with the PET and the antimicrobial agent at a weight ratio of 10: 1 to 100: 1, and the bracket 100 and the square support (STS 304) and a table of the main body Wherein the coating layer further comprises an antimicrobial agent and the coating layer comprises PET and an antimicrobial agent in a ratio of 10: 1 to 100: 1 By weight.

A fixing bolt 122 for fixing the water tank mounting portion 120 of the bracket 100 to the side wall of the water tank and a fixing bolt 122 for fixing the rectangular support 200 and the round bar auxiliary support 300 to the bracket 100 The fastening bolts 142 and the fastening nuts 144 for fastening to the supporter mount 140 are both made of a high-strength plastic material.

To achieve the above object, there is provided a method of manufacturing an antibacterial SM water tank using an antibacterial SM seed panel, comprising the steps of: preparing an antibacterial SMC panel; Installing a floor frame on the support surface; Assembling the manufactured plurality of the antibacterial SMC panels on the upper part of the installed bottom frame using an external reinforcing material to install the body; And installing an internal stiffener inside the body. The step of preparing the antibacterial SMC panel comprises mixing the green tea extract powder, the mugwort extract powder, the zeolite powder, the granulated green tea leaf powder, the alkali pyroxen powder and the charcoal powder in a weight ratio of 4: 4: 3: 3: (S100) in which the mixture is introduced into a mixing tank at a weight ratio of 2: 1: 1: 2 and mixed with a low speed stirrer for 3 to 5 hours while maintaining the internal temperature of the mixing tank at 50 to 70 deg. (S200) for preparing a mixture by adding calcium carbonate, glass fiber, unsaturated polyester resin, water-reducing agent, zinc stearate and colorant to the prepared natural antibacterial and deodorant at 20 to 30 ° C for 10 to 30 minutes, ; And a molding step (S300) of putting the mixture into a mold for an antibacterial SMC panel and then press-molding the mixture at a temperature of 120 to 150 DEG C under a high pressure of 3 to 6 bar for 40 to 50 sec / mm.

The antimicrobial SMC water tank using the antimicrobial SMC panel according to the present invention has excellent antimicrobial and deodorizing effect, and when the antimicrobial SMC panel is manufactured using the antimicrobial and deodorant effect, it obstructs adhesion and growth of microorganisms and water mangoes, There is an effect that can be prevented.

In addition, according to the present invention, the round rod auxiliary support bracket, the bracket, and the square support member constituting the internal reinforcement device are all formed of a stainless steel material body and a coating layer of PET on the surface of the main body, There is an effect of preventing the contamination of the microorganisms which are generated when the microorganisms can be placed in a state of being exposed to air without being immersed in water in some cases.

1 is a perspective view of an antibacterial SMC water tank according to an embodiment of the present invention,
FIG. 2 is a view of the antibacterial SMC panel of FIG. 1 with the side panels removed;
3 is a perspective view of the internal reinforcement device of the antibacterial SMC water tank of FIG. 1,
FIG. 4 is a plan sectional view of the inner reinforcing apparatus of FIG. 3 fixed to the inner side wall of the body,
Figure 5 is a cross-sectional view of the round bar support of Figure 3;

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, an antibacterial SMC water tank using an antibacterial SMC panel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

An antibacterial SMC water tank 10 according to an embodiment of the present invention includes a bottom frame 20 provided on a support surface and a body 22 formed on a top of the bottom frame 20 and composed of a plurality of antibacterial SMC panels 40 (50), an external reinforcing device (60) fixed to an outer side wall of the body (50) to connect and support the plurality of antibacterial SMC panels (40) And an internal reinforcement device (70) for supporting the body (50).

The composition of the antimicrobial SMC (sheet molding compound) panel 40 of the present invention comprises 20 to 25% by weight of calcium carbonate, 30 to 40% by weight of glass fiber, 19 to 24% by weight of unsaturated polyester resin, 4 to 9% 0.77 to 1.6 wt.% Zinc stearate, 1.23 to 2.5 wt.% Colorant, and 15 to 20 wt.% Natural antimicrobial and deodorant.

In the present invention, the water-reducing resin is used for preventing shrinkage of the unsaturated polyester resin. Examples of the resin include polystyrene, polymethyl methacrylate, polyethylene, polyvinyl acetate and copolymers thereof, polyvinyl chloride, styrene-butadiene- Styrene trimerizing agent, polyurethane, ethylene-propylene copolymer, and the like.

The natural antimicrobial and deodorant may be selected from the group consisting of green tea extract powder, mugwort extract powder, zeolite powder, granulated green tea powder, 1: 1: 2 weight ratio.

The powder is ground to a particle size of 500 to 3000 mesh, preferably 1000 to 2500 mesh.

The green tea extract is obtained by extracting leaves and branches of green tea by hot water extraction method and drying. The extract of the mugwort is extracted with hot water extraction method and dried after extracting wormwood leaves, branches and roots. Here, the drying may be performed by a conventional drying method, for example, freeze drying, spray drying, or the like.

These green tea extracts and mugwort extracts are known to have active oxygen scavenging ability, antimicrobial effect, and deodorizing effect, and when used in a water tank using the SMC panel of the present invention, the antibacterial and deodorizing effect of water stored in the water tank is given And can remove the active oxygen to provide clean and safe water.

In addition, the green tea extract and the mugwort extract are extracted using high-temperature water. Therefore, there is an advantage that the above-mentioned effect can be well manifested since the composition of the green tea extract and the mugwort extract is small at high temperature and high pressure in the production of the antibacterial SMC panel.

The zeolite is a zeolite having ion exchangeable ions partially substituted by silver (Ag) ions and zinc (Zn) ions, which are antibacterial metal ions, and the ratio of the silver ion concentration / zinc ion concentration is less than 1. The zeolite having the above characteristics is excellent in discoloration resistance as compared with the conventional zeolite, and it can solve the apparent problems of the antibacterial SMC panel caused by discoloration of the zeolite with time, and can exhibit an antibacterial effect.

The granitic rocks contain about 25,000 inorganic salts and exchange ions with heavy metals. Accordingly, in the water tank using the antibacterial SMC panel of the present invention, the heavy metals contained in the water stored in the water tank are removed to reduce the use of microorganisms and water mosses, thereby suppressing their occurrence.

The alkali pyroxes are minerals having an antibacterial and deodorizing effect in addition to emitting far-infrared rays and anions.

The charcoal is carbonized wood, and preferably has a moisture content of 3.1 to 7.0% and a recycled content of 1.33 to 3.13%, and is carbonized at a temperature of at least 600 캜. When charcoal out of the above-mentioned condition is used, the final panel produced by chemical reaction with the composition of the antibacterial SMC panel manufactured according to the present invention does not have a certain shape and can not exhibit the antimicrobial and deodorizing effect which is the original effect of charcoal Therefore, charcoal having the above conditions is preferable.

3 and 4, the internal reinforcing device 70 of the water tank is provided inside the water tank body 50 to prevent deformation of the water tank due to water pressure, and includes a bracket 100, (200) and a round bar auxiliary support (300) which are coupled to the main body (100).

The bracket 100 includes a water tank mounting portion 120 fixed by the body 50 of the water tank and the fixing bolts 122 and a protrusion 120 protruding from the water tank mounting portion 120, And a supporter mounting portion 140 into which the supporter 300 is inserted. A fixing bolt 122 is inserted into the water tank mounting portion 120 and penetrates the body 50 of the water tank and is fastened to the outside of the body 50 by a nut 125. The bracket 100 is fixed to the water tank body 50 .

The quadrangular support 200 is inserted and mounted in the intermediate pressure part of the support mount 140 and the round bar auxiliary support 300 is inserted and mounted on both sides of the quadrilateral support 200. The square support 200 is fastened and fastened by fastening bolts 142 across the upper and lower surfaces of the support support 140. The circular support assisting supports 300 are fastened to the opposite side of the support support 140 by fastening nuts 144, As shown in Fig. On the other hand, since the round bar auxiliary support 200 is installed on both sides of the rectangular support 200, the structural stability against the water pressure can be further enhanced.

5, a round bar auxiliary support 300 according to an embodiment of the present invention includes a body 320 made of stainless steel (STS 304), a polyethylene terephthalate (PET) material formed on the surface of the body 320 And a coating layer 340 of the coating layer 340.

The polyethylene terephthalate (PET) constituting the coating layer 340 is formed by the ions including chlorine ions contained in the water stored in the water tank, so that the surface of the body 320 made of stainless steel is chemically eroded or corroded . The coating layer 340 may be formed by, for example, spraying, pressing, dipping, or coating. In addition, the coating layer 340 is preferably formed to a thickness of 0.1 to 0.6 mm in order to prevent chemical corrosion and corrosion. When the thickness of the coating layer 340 is less than 0.1 mm, there is a problem that the coating effect by the PET is weak and the chemical attack and corrosion of the round bar auxiliary support 300 can be easily performed. If the thickness is more than 0.6 mm, And the corrosion prevention effect is not relatively large as compared with the case where the corrosion prevention effect is within the above range, and there is also a problem of an increase in manufacturing cost.

On the other hand, the rod support supporter 300 installed inside the water tank may be mostly immersed in water. However, for example, when the inside of the water tank is inspected or cleaned, Lt; / RTI > In this case, the microorganisms in the air adhere to the round bar auxiliary support 300 and can contaminate it. When the round rod auxiliary support 300 is immersed in water, the water inside the water tank is contaminated by the microorganisms attached to the round support supplementary support 300, which may cause a problem to the human body when used as drinking water or the like.

Therefore, in order to prevent such a problem, the coating layer 340 may further include an antibacterial agent in addition to PET. In this case, it is preferable to mix PET and antimicrobial agent at a weight ratio of 10: 1 to 100: 1. In the case of mixed use outside the above range, the coating effect of the round bar supplementary support 300 is weak or the antibacterial effect is weak. According to the present invention, the antibacterial agent is not necessarily limited to this, but it is preferable to use an antibacterial agent harmless to the human body such as silver or silica silver in the nano state.

In addition, both the bracket 100 and the rectangular support 200 may be formed to have the same material and structure as the round bar auxiliary support 300. That is, both the bracket 100 and the rectangular support 200 have a body made of stainless steel (STS 304), and a coating layer made of polyethylene terephthalate (PET) is formed on the surface of the body. In addition, an adhesive layer may be further provided between the bracket 100 and the rectangular support 200 to enhance adhesion between the body and the coating layer. The coating layer of the bracket 100 and the rectangular support 200 may further include an antimicrobial agent in addition to PET. The coating layer, the adhesive layer, and the antibacterial material applied to the bracket 100 and the rectangular support 200 have the same configuration as the round bar auxiliary support 300, and thus the detailed description thereof will be omitted.

Meanwhile, it is preferable that the fastening bolt 122, the fastening bolt 142, and the fastening nut 144, both of which are in contact with water, are formed of a high-strength plastic material. The fixing bolts 122, the fastening bolts 142 and the fastening nuts 144 which are exposed to the water are applied as high-tensile plastic materials free from chemical erosion (corrosion), thereby effectively preventing corrosion of the drinking water in the water tank There is an advantage of securing clean water quality.

The method of manufacturing an antibacterial SMC water tank according to the present invention includes the steps of manufacturing an antibacterial SMC panel 40, installing a floor frame 20 on a supporting surface, Assembling the manufactured plurality of antibacterial SMC panels 40 using an external reinforcing device to install the body 50 and installing the internal reinforcement device 70 inside the body 50. [

The step of preparing the antimicrobial SMC panel of the present invention is characterized in that the green tea extract powder, the mugwort extract powder, the zeolite powder, the granulated green tea leaf powder, the alkali pyroxene powder and the charcoal powder are mixed at a weight ratio of 4: 4: 3: 3: (S100) in which the mixture is introduced into a mixing tank at a weight ratio of 2: 2: 2: 1: 1: 2 and mixed with a low speed stirrer for 3 to 5 hours while maintaining an internal temperature of the mixing tank at 50 to 70 deg. (S200) for preparing a mixture by adding calcium carbonate, glass fiber, unsaturated polyester resin, water-reducing agent, zinc stearate and colorant to the prepared natural antibacterial and deodorant at 20 to 30 ° C for 10 to 30 minutes, ; And a molding step (S300) of putting the mixture into a mold for an antibacterial SMC panel and then press-molding the mixture at a temperature of 120 to 150 DEG C under a high pressure of 3 to 6 bar for 40 to 50 sec / mm.

The natural antimicrobial and deodorant preparation step (S100) may be carried out at a weight ratio of 4: 4: 3: 3: 3: 3 or 2: 3: 3 of the green tea extract powder, the mugwort extract powder, the zeolite powder, : 2: 2: 1: 1: 2, and mixing the mixture in a low-speed stirrer for 3 to 5 hours while maintaining the internal temperature of the mixing bath at 50 to 70 ° C.

By mixing the above-mentioned components under the above-mentioned conditions, the components are not bonded to each other and are uniformly distributed evenly, so that the antibacterial and deodorizing effects of the respective components can be expressed well.

The preparation of the mixture (S200) comprises adding calcium carbonate, glass fiber, unsaturated polyester resin, water-reducing agent, zinc stearate, and colorant to the natural antimicrobial and deodorant prepared in the natural antibacterial and deodorant preparation step (S100) , And the mixing is preferably performed at 20 to 30 DEG C for 10 to 30 minutes.

20 to 25% by weight of calcium carbonate, 30 to 40% by weight of glass fibers, 19 to 24% by weight of an unsaturated polyester resin, 4 to 9% by weight of a water-reducing agent, 0.77 to 30% by weight of zinc stearate in 15 to 20% by weight of natural antimicrobial and deodorant, 1.6% by weight, and the colorant is contained in an amount of 1.23 to 2.5% by weight.

In the forming step S300, the mixed material prepared in the step S200 of mixing is put into a mold for the antibacterial SMC panel and pressed at a high temperature of 3 to 6 bar at a temperature of 120 to 150 ° C for 40 to 50 sec / Molding step.

Hereinafter, the present invention will be described in more detail with reference to Examples. These embodiments are only for describing the present invention more specifically, and the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention.

Example  1: natural antimicrobial and Deodorant  Produce

Green tea leaves and twigs were washed thoroughly, the surface water was removed, shade was shaken at 30-35 ° C for one week, and then green tea extract was obtained by hot water extraction. Followed by spray drying to prepare green tea extract powder.

The mugwort leaves and roots were thoroughly cleaned in the same manner as described above, and the moisture of the surface was removed. The mugwort extract was obtained by hot water extraction method at 30 to 35 ° C for one week and spray-dried to prepare mugwort extract powder.

In addition, zeolite, granodiorite porphyry, and alkali pyroxys were pulverized with a pulverizer to prepare powder having a particle size of 1000 to 2500 mesh.

In addition, oak oak was put into an indoor carbonization furnace and carbonized at 400 ° C or 600 ° C for about 25 minutes, followed by pulverization with a pulverizer to produce charcoal powder having a particle size of 1000 to 2500 mesh.

Each of the powders thus prepared was put into a mixing tank at the contents shown in the following Table 1 and stirred at 60 ° C for 4 hours to prepare a natural antibacterial and deodorant.

(Unit: g) Green tea extract powder Mugwort extract powder Zeolite powder Granodiorite porphyry powder Alkali pyroxene powder Charcoal powder Production Example 1 5 5 25 20 20 25 Production Example 2 5 5 20 25 25 20 Production Example 3 15 15 15 20 20 15 Production Example 4 15 15 20 15 15 20 Production Example 5 20 20 15 15 15 15 Production Example 6 20 20 20 10 10 20

Example  2: Deodorizing ability  Measure

Each of the powders prepared in Example 1 was placed in a Tedlar gas sampling bag according to the following contents, and the concentration change of the ammonia gas was measured by a detection tube (AP-20, 105SE, NH3, GASTEK). As a control, 10 L of ammonia gas was injected into Tetra rabbas without natural antibacterial and deodorant, and 1 mL of 95% hexane and 1 mL of 95% ethanol were respectively added and measured in the same manner as above. The results are shown in Table 2 below.

reaction
time
(hr) NH ₃ (ppm) Control group 95%
Hexane 95%
ethanol Manufacturing example
One Manufacturing example
2 Manufacturing example
3 Manufacturing example
4 Manufacturing example
5 Manufacturing example
6 0 60 60 60 60 60 60 60 60 60 0.5 60 60 60 38 40 40 30 10 20 One 60 60 60 32 36 36 28 8 18 2 60 60 60 27 32 24 20 8 11 3 58 60 60 25 28 20 18 4 8 4 55 60 60 20 22 18 15 0 4 5 55 60 60 18 20 16 14 0 0 6 50 60 60 16 15 14 12 0 0

As shown in Table 2, ammonia gas concentration was reduced to 1/3 or less within 30 minutes of reaction time in Production Examples 5 and 5, and ammonia gas was not detected after 5 hours, showing the best deodorizing effect.

Example  3: Stirring  Conditional Deodorant  efficacy

The deodorizing efficiency in the case where the stirring temperature and the condition of Example 1 were different according to the content ratio of Production Example 5 having good deodorizing effect in Example 2 were measured in the same manner as in Example 2. [

reaction
time
(hr) NH ₃ (ppm) 30 ℃
2 hours 30 ℃
4 hours 30 ℃
6 hours 60 ° C
2 hours 60 ° C
4 hours 60 ° C
6 hours 90 ° C
2 hours 90 ° C
4 hours 90 ° C
6 hours 0 60 60 60 60 60 60 60 60 60 0.5 41 38 42 35 10 30 38 38 37 One 37 32 37 31 8 28 32 33 31 2 31 26 33 25 8 20 27 26 27 3 28 22 28 15 4 12 25 22 22 4 25 20 22 9 0 8 20 16 17 5 19 18 19 7 0 5 18 10 13 6 17 16 15 One 0 0 16 4 7

As can be seen in Table 3, it was found that the best deodorizing effect was obtained when the natural antibacterial and deodorant were prepared by stirring at 60 ° C for 4 hours.

Example  4: Antibacterial effect

Staphylococcus ( Staphylococcus aureus) against the natural antibacterial and deodorant exhibiting the best effect in Example 3 aureus ATCC 6538P) (hereinafter referred to as strain 1) and Escherichia coli coli ATCC 8739) (hereinafter referred to as strain 2). The experimental method was a film adhesion method according to JIS Z 2801: 2006 (FITI test institute standard), and the results are shown in Table 4 below.

BLANK Natural antibacterial and deodorant Strain 1
Initial number of bacteria 3.5 × 10 ⁵ 3.5 × 10 ⁵ After 24 hours 2.7 × 10 ⁵ 2.5 x 10 ² Antibacterial activity (log) - 3.0 Strain 2
Initial number of bacteria 1.8 × 10 ⁵ 1.8 × 10 ⁵ After 24 hours 2.1 × 10 ⁷ 3.8 × 10 ³ Antimicrobial activity value 3.7

As can be seen from Table 4, the natural antimicrobial and deodorant according to the present invention has excellent antibacterial effect.

10. Antimicrobial SMC water tank 20. Floor frame
40. Antibacterial SMC panel 50 body
60. External Reinforcement 70. Internal Reinforcement

Claims (6)

A body 50 made of a plurality of antibacterial SMC panels 40 installed on the top of the bottom frame and a plurality of antibacterial SMC panels 40 fixed to the outer side wall of the body 50, An external reinforcing device 60 for connecting and supporting the antibacterial SMC panel 40 and an internal reinforcing device 70 fixed to the inner side wall of the body 50 to support the body 50,
The antimicrobial SMC panel 40 is characterized in that the composition comprises 20 to 25% by weight of calcium carbonate, 30 to 40% by weight of glass fibers, 19 to 24% by weight of unsaturated polyester resin, 4 to 9% by weight of water- By weight, from 1.23 to 2.5% by weight of a colorant, and from 15 to 20% by weight of a natural antimicrobial and deodorant,
The natural antimicrobial and deodorant may be selected from the group consisting of green tea extract powder, mugwort extract powder, zeolite powder, granulated green tea powder, 1: 1: 2. ≪ RTI ID = 0.0 > 1. < / RTI > delete The method according to claim 1,
Wherein the powder has a particle size of 500 to 3000 mesh. ≪ RTI ID = 0.0 > 8. < / RTI > The internal reinforcement device according to claim 1, wherein the internal reinforcement device (70)
A bracket 100 having a water tank mounting part 120 fixed to an inner wall of the body 50 and a support mounting part 140 protruding from the water tank mounting part 120; (200) and a round bar auxiliary support (300) inserted and mounted in the support bar mounting portion (140)
The round bar auxiliary support 300 includes a main body 320 made of stainless steel (STS 304) and a coating layer 340 made of polyethylene terephthalate (PET) formed on the surface of the main body 320, The thickness of the coating layer 340 of the support 300 is 0.1 mm to 0.6 mm and the coating layer 340 further includes an antimicrobial agent and the coating layer 340 is formed of PET and antimicrobial agent in a weight ratio of 10: 1 to 100: Lt; / RTI >
The bracket 100 and the rectangular support 200 both include a body made of stainless steel (STS 304) and a coating layer made of polyethylene terephthalate (PET) formed on the surface of the body, and the thickness of the coating layer is 0.1 mm Wherein the coating layer further comprises an antimicrobial agent and the coating layer is mixed with the PET and the antimicrobial agent at a weight ratio of 10: 1 to 100: 1.
5. The method of claim 4,
A fixing bolt 122 for fixing the water tank mounting portion 120 of the bracket 100 to the side wall of the water tank and a fixing bolt 122 for fixing the rectangular support 200 and the round bar auxiliary support 300 to the support bracket 100 of the bracket 100, Wherein the fastening bolts (142) and the fastening nuts (144) for fixing the fastening bolts (140) are formed of a high-tensile plastic material.
An antibacterial SMC panel manufacturing step;
Installing a floor frame on the support surface;
Assembling the manufactured plurality of the antibacterial SMC panels on the upper part of the installed bottom frame using an external reinforcing material to install the body; And
And installing an internal stiffener inside the body,
Wherein the step of manufacturing the antibacterial SMC panel comprises:
2: 2: 2: 1: 1: 2 ratio of 4: 4: 3: 3: 3: 3 ratio of the green tea extract powder, the mugwort extract powder, the zeolite powder, (S100) of preparing a natural antibacterial and deodorant preparation by mixing the mixture in a mixing tank at a weight ratio of 3 to 5 hours while maintaining the internal temperature of the mixing tank at 50 to 70 캜; (S200) for preparing a mixture by adding calcium carbonate, glass fiber, unsaturated polyester resin, water-reducing agent, zinc stearate and colorant to the prepared natural antibacterial and deodorant at 20 to 30 ° C for 10 to 30 minutes, ; And a molding step (S300) of putting the mixture into a mold for an antibacterial SMC panel and press-molding the mixture at a temperature of 120 to 150 DEG C under a high pressure of 3 to 6 bar and a pressure of 40 to 50 sec / mm. A method for manufacturing an antibacterial SM seed water tank using SM seed panel.

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