KR102246416B1 - Method for modifying porous materials using slaughter blood and porous materials modified by the method - Google Patents

Abstract

The present invention relates to a method for modifying a porous material using slaughtered blood, and to a porous material modified thereby, and more particularly, to improve water resistance and durability by dispersing the discarded slaughtered blood and coating it on the surface of the porous material. It relates to a method for modifying a porous material using slaughter blood to have various functions such as functional fertilizer and soil improvement, soil salt control, harmful gas or dust adsorption, antibacterial or anti-odor by coating a functional material, and a porous material modified thereby. .
The method of modifying a porous material using slaughtered blood according to the present invention comprises: coating a slaughtered blood dispersion prepared through pretreatment of slaughtered blood on a porous material; And drying and curing the porous material coated with the slaughtered blood dispersion.

Description

[Method for modifying porous materials using slaughter blood and porous materials modified by the method}

The present invention relates to a method for modifying a porous material using slaughtered blood, and to a porous material modified thereby, and more particularly, to improve water resistance and durability by dispersing the discarded slaughtered blood and coating it on the surface of the porous material. It relates to a method for modifying a porous material using slaughter blood to have various functions such as functional fertilizer and soil improvement, soil salt control, harmful gas or dust adsorption, antibacterial or anti-odor by coating a functional material, and a porous material modified thereby. .

In general, porous materials consist of pores of 15 to 95% of their volume, and have many voids inside and outside, and have low density. Soil improvement materials, lightweight materials, adsorption materials, and flame retardant materials for soil, construction, energy materials, etc. It is used as a material that plays a role as a material, insulation material, and sound-absorbing material.

Materials having a porous structure include pearlite, expanded vermiculite, expanded chaff, and bark, and these materials are widely used in the fields of agriculture and landscaping for soil improvement. It is used as a major raw material.

These porous materials mainly play a role in imparting porosity in the soil and increasing the air permeability and drainage properties.

However, the porous material has poor strength characteristics such as durability, abrasion resistance, and impact resistance due to the micropores in the structure, and thus crushing occurs due to friction between particles during manufacturing, transportation, and storage, or external impact during use. There is a disadvantage that the particle size is small and fine particles are generated as it is easily destroyed by the like. In particular, when used as a soil modifier for agriculture or landscaping, consolidation inside the soil easily occurs, and when it is a raw material for building materials such as insulation or sound-absorbing material, it causes structural destruction.

In addition, since porous materials do not have special functionality other than structural characteristics of a low-density, lightweight structure, they are being utilized to a low degree of added value.

Various technologies have been developed to increase utility and added value by imparting functionality of a porous material, and examples of related technologies are disclosed in Documents 1 to 5 below.

Patent Document 1 discloses a non-dust-coated soil conditioner using a water-soluble polymer material on the surface of pearlite, which is an expandable inorganic material, a material containing a cation component, and a polymer binder such as polyvinyl acetate, styrene-butadiene rubber, etc. along with the inorganic material. .

This method has a problem in that soil pollution problems occur when used as an actual soil conditioner due to the application of non-degradable polymer materials.

Patent Document 2 discloses a functional landscaping soil coating the surface by mixing a porous material such as natural inorganic foam particles, vermiculite, pearlite, peat moss, volcanic sand, and zeolite with PVA, starch, chitosan, and the like, and a method of manufacturing the same.

In the above functional landscaping method, after adding acetic acid to dissolve chitosan, the aqueous solution is gelled at 30°C for 24 hours, and then the porous lightweight particles are immersed at room temperature for 6 to 24 hours, and then at room temperature for 24 hours. It is to manufacture functional landscaping soil by drying.

This method has a problem in that the manufacturing process and the reforming process of the product coating solution are complicated, and not only require a long treatment, but also cause soil acidification when an acid additive such as used acetic acid remains and is transferred to the soil. In addition, in the case of applying a gel-like coating solution, it is uniformly dispersed on the surface of the porous material, so it takes a lot of time to absorb and apply, and it has the disadvantage that uniform drying of the entire coating layer is difficult due to the surface hardening of the gel. have.

Patent Document 3 describes pearlite whose surface is modified with metal salt by heating the slurry of pearlite flakes to a temperature of 70~100℃, adjusting the pH using a chemical, adding a solution such as iron salt, and heat treatment at 500~1000℃. A method of making flakes is disclosed.

In particular, a method of applying tin oxide, titanium dioxide, iron oxide, and the like as additives applied to pearlite flakes is described.

This method is a method performed under high temperature conditions when producing pearlite, and because it requires high-temperature heat treatment, the production cost is relatively high, and precise devices are required, and the functional materials that can be applied are limited to some metal salts. There are various limiting factors in application.

Patent Document 4 discloses a coating pearlite for plant medium in which an inorganic substance is coated on pearlite using an adhesive such as EVA, water-based urethane, and polyvinyl alcohol.

Since this method uses non-degradable polymer materials as an adhesive component, it is not eco-friendly, so it is limited in application to soil materials, etc., and since the adhesive itself has little functionality, additional additives are required to add functionality. It has disadvantages of low economic efficiency, such as required.

Patent Literature 5 discloses a method for producing liquid fertilizer using livestock blood in which blood is pulverized and then the blood to which mulberry and sugar are added are reacted at 52 to 58° C. for 3 to 5 hours to produce liquid fertilizer.

This method promotes the decomposition of protein through additional additives such as mulberry and sugar, but has a disadvantage that economical efficiency is greatly degraded due to an increase in cost and a long process process due to the addition of the additives.

Since the disposal cost of slaughtered blood has been continuously increasing since the ban on dumping of organic waste at sea, various methods have been developed to find ways to utilize slaughtered blood as a resource, but it does not have the complexity, economy, and differentiated functionality of the manufacturing process. Due to quality limitations, more than 70% of the amount generated is being disposed of at a high cost.

Korean Registered Patent Publication No. 10-0661477 (registered on December 19, 2006) Korean Registered Patent Publication No. 10-1110605 (registered on Jan. 20, 2012) Republic of Korea Patent Publication No. 10-2015-0127093 (published on November 16, 2015) Republic of Korea Patent Publication No. 10-0428513 (registered on April 12, 2004) Korean Registered Patent Publication No. 10-1247450 (registered on March 19, 2013)

The present invention has been devised to solve the above-described problems, and the porosity using slaughter blood capable of securing durability and water resistance by preparing a slaughtered blood dispersion through physical pretreatment of slaughtered blood and coating it on the surface of a porous material. It is an object to provide a material modification method and a porous material modified thereby.

In addition, a porous material using slaughter blood that can additionally coat functional materials such as loess powder, charcoal powder, zeolite powder, clay powder, wood vinegar solution, silicic acid solution, and citric acid before drying and curing the porous material coated with slaughter blood dispersion. An object of the present invention is to provide a modification method and a porous material modified thereby.

In order to achieve the above object, a method of modifying a porous material using slaughtered blood according to the present invention comprises: coating a slaughtered blood dispersion prepared through pretreatment of slaughtered blood on a porous material; Drying and curing the porous material coated with the slaughtered blood dispersion; including, and removing the slaughtered blood dispersion remaining in the porous material using a blood separation device after the step of coating the slaughtered blood dispersion on the porous material. It further comprises a step, further comprising the step of coating a functional material on the surface of the porous material after the step of removing excess slaughter blood dispersion remaining in the porous material, wherein the functional material coated on the surface of the porous material is It is one material selected from loess powder, charcoal powder, zeolite powder, clay powder, wood vinegar solution, silicic acid solution, and citric acid, and before coating the slaughter blood dispersion on the porous material, selecting the size of the porous material and removing fine particles In the process of transporting and storing a porous material having various shapes, fine particles generated due to the property of being easily broken are removed, and a porous material having a size in a certain range is selected and prepared as a raw material.

In addition, the porous material is one selected from the group consisting of perlite, vermiculite, expanded vermiculite, lightweight aggregate, volcanic stone, zeolite, charcoal, expanded rice hull, carbonized rice husk, silica gel, aerogel, ceramic material, activated carbon, matsutake, and basalt. It is done.

In addition, the step of coating the slaughtered blood dispersion on the porous material includes an immersion coating method in which a porous material is immersed in the slaughtered blood dispersion, a spray coating method in which the slaughtered blood dispersion is sprayed on the transported porous material, and the slaughtered blood dispersion on the transported porous material. It is characterized in that it is carried out by any one of the spray coating method of spraying and a brushing coating method of brushing the slaughtered blood dispersion on the conveyed porous material with a brush.

In addition, the step of drying and curing the porous material coated with the slaughter blood dispersion is performed at a temperature of 70 to 240° C. for 1 to 20 minutes.

In addition, prior to the step of coating the slaughtered blood dispersion on the porous material, the slaughtered blood is added to a stirrer and agitated for 3 to 8 minutes at a rotational speed of 500 to 1500 rpm to prepare a slaughtered blood dispersion. It is done.

The present invention is modified by a method of modifying a porous material using slaughtered blood, and one material selected from loess powder, charcoal powder, zeolite powder, clay powder, wood vinegar liquid, silicic acid solution, and citric acid on the surface of a porous material coated with a slaughter blood dispersion. This coated porous material is provided.

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As described above, the method of modifying a porous material using slaughtered blood according to the present invention and the modified porous material not only can reduce the cost of processing slaughter blood by securing a method of utilizing the waste slaughtered blood with excellent economic efficiency. Using slaughtered blood, an eco-friendly protein coating material with high adhesion and water resistance with excellent ingredients such as organic nitrogen and various inorganic elements, has the effect of greatly enhancing the durability and water resistance of the porous material.

In addition, by additionally coating the porous material coated with slaughter blood dispersion before drying and hardening treatment, it is not only the effect of modifying so that it can have aesthetic properties similar to the soil, but also moisture absorption or soil salt control, harmful gas or dust absorption. It has the effect of providing various functions such as antibacterial or anti-odor.

1 is a process diagram showing a method of modifying a porous material using slaughtered blood according to the present invention.
Figure 2 is a process diagram showing an additional process performed before the step of coating the slaughtered blood dispersion of the present invention on a porous material.
Figure 3 is a flow chart showing an additional process performed after the step of coating the slaughtered blood dispersion of the present invention on a porous material.

Hereinafter, in order to describe in detail enough to allow those of ordinary skill in the art to easily implement the present invention, the most preferred embodiment of the present invention will be described in detail.

According to the present invention, coating the slaughtered blood dispersion prepared through pretreatment of slaughtered blood on a porous material (S100); There is provided a method for modifying a porous material using slaughtered blood, including drying and curing the porous material coated with the slaughtered blood dispersion (S200).

As shown in FIG. 1, in the step (S100) of coating the slaughtered blood dispersion on the porous material, the slaughtered blood dispersion prepared through pretreatment on the outer voids and surfaces of the porous material is coated.

At this time, the method of coating the slaughtered blood dispersion on the porous material is the immersion coating method in which the porous material is immersed in the slaughtered blood dispersion, the spray coating method in which the slaughtered blood dispersion is sprayed on the transported porous material, and the slaughtered blood dispersion on the transported porous material. It is carried out by any one of the spray coating method of spraying and the brushing coating method of brushing the slaughtered blood dispersion on the conveyed porous material with a brush.

Meanwhile, the blood of cattle, pigs, chickens, ducks, etc. is applied as the slaughter blood, which is caused by slaughter, and is not limited thereto, and other factors or blood generated from other types of livestock may be applied.

Porous materials that can be coated with the slaughter blood dispersion include perlite, vermiculite, expanded vermiculite, lightweight aggregate, volcanic stone, zeolite, charcoal, expanded rice husk, carbonized rice husk, silica gel, aerogel, ceramic material, activated carbon, pine stone, basalt, etc. .

In the step of drying and curing the porous material (S200), the porous material coated with the slaughter blood dispersion is dried and cured through the step (S100) of coating the slaughtered blood dispersion on the porous material.

In the step of drying and curing the porous material (S200), it is performed for 1 to 20 minutes at a temperature of 70 to 240°C. If the temperature is less than 70°C, it is difficult to form a uniform coating layer for slaughter blood dispersion, and the cured slaughter blood dispersion There is a problem in that the functional expression is deteriorated by dissolving a part of the in water, and there is a problem that carbonization of the slaughtered blood dispersion coated on the porous material occurs when the temperature exceeds 240°C.

Among proteins contained in slaughtered blood, albumin having adhesive properties requires curing at 70°C or higher because the temperature condition required for curing is 70°C or higher. Although high temperature conditions are effective for rapid curing, carbonization of organic matter may occur under high temperature conditions of 240°C or higher.

Therefore, it is possible to adjust the water resistance of the final product according to the temperature condition during curing. If the curing is performed at a temperature condition of 70 to 180°C during curing, the water loosening property of the final product appears different depending on the temperature, and the curing temperature after that The higher it is, the stronger the water resistance becomes, so if it is cured under conditions of 180°C or higher, the final product does not exhibit water loosening properties.

This is a method that enables the control of the soft-acting properties of the final product according to the conditions of the curing temperature according to the conditions of use in the manufacture of a product that has both fertilizer characteristics or soil-improving functional materials. .

Methods of drying and curing the porous material coated with the slaughter blood dispersion include hot air drying (tunnel method, rotary method, belt method), film drying (drum type, belt type), foam drying, hot plate drying, high frequency drying, infrared rays. Drying and the like may be applied.

As shown in FIG. 2, the present invention may further include preparing a slaughtered blood dispersion (S110) prior to the step (S100) of coating the slaughtered blood dispersion on a porous material.

In the step of preparing the slaughtered blood dispersion (S110), a slaughtered blood dispersion is prepared for increasing applicability to a porous material and ease of modification.

Blood from slaughter begins to coagulate as it escapes from the raw material during the slaughter process. Existing methods for using slaughter blood use anticoagulants to prevent clotting. The use of such an anticoagulant may not only increase the cost of the use of slaughtered blood, but also increase the salts in the slaughtered blood, so its application to soil may be limited.

Since blood coagulation occurs during the transfer and storage process of slaughtered blood, the coagulated slaughtered blood is prepared by appropriate physical treatment instead of the application of chemical additives in the production of actual products. At this time, agitation is performed at an appropriate level to disperse the coagulated blood. Conditions may vary depending on the size of the agitator applied, the shape of the rotating blade, the presence or absence of baffles, stirring time, temperature, etc., but the standard liquid at room temperature When stirring is performed using a stirrer, the coagulated blood is pulverized to prepare a dispersion that is evenly dispersed.

In the step of preparing the slaughtered blood dispersion (S110), the slaughtered blood is put into a stirrer and agitated for 3 to 8 minutes at a rotation speed of 500 to 1500 rpm.If the rotation speed is less than 500 rpm, the coagulated blood cannot be evenly pulverized. In addition, there is a problem that the dispersion processing time takes a long time, and when the rotation speed exceeds 1500rpm, the blood proteins in the slaughtered blood are released and the proteins are bonded to each other at the same time, so that a large amount of bubbles is generated in the slaughtered blood. Uniform application to the material becomes difficult.

On the other hand, the present invention may further include the step (S120) of selecting the size of the porous material and removing fine particles before the step (S100) of coating the slaughtered blood dispersion on the porous material.

As a method for sorting the size of such a porous material and removing fine particles, it is possible to sort and separate using a vibrating screen made of a mesh network of a certain size, a classifier, and the like.

In the reforming process of porous materials, it is effective that the size of the porous material is within a certain range for controlling the coating amount of the slaughtered blood dispersion and for uniform product quality, and excessive fines remain in the slaughtered blood dispersion during the reforming process, leading to deterioration of quality. It can be the cause.

Therefore, through the step of selecting the size of the porous material and removing the fine particles (S120), the fine particles generated due to the characteristics that are easily crushed in the process of transporting and storing the porous material having various shapes are removed, and It is possible to select a porous material having a size and prepare it as a raw material.

As shown in FIG. 3, the present invention includes a step of removing the slaughter blood dispersion remaining in the porous material by using a blood separation device after the step of coating the slaughtered blood dispersion on a porous material (S100) (S130). It may contain more.

In the step of removing the excess slaughter blood dispersion remaining in the porous material (S130), the slaughter blood dispersion remaining in the porous material is removed in order to apply a coating amount in consideration of quality characteristics and process efficiency after modification.

Since the porous material contains many voids inside and outside, the slaughtered blood dispersion is dispersed and absorbed by the pores on the surface of the porous material when the slaughtered blood dispersion is coated.

Thereafter, as the slaughtered blood dispersion has a higher viscosity than water, a certain amount or more will exist on the surface of the porous material.At this time, if an excessive amount of slaughtered blood dispersion remains on the surface of the porous material, it is slaughtered in the subsequent curing process. It is dried and cured from the surface of the coating layer of the blood dispersion, and a coating film is formed, and due to this effect, there may be a problem in that drying inside the surface layer is not performed smoothly.

In addition, as excessive residual blood between the particles of the porous material coated with the slaughtered blood dispersion is adhered to each other and hardened, aggregation and agglomeration of the porous materials may occur, resulting in deterioration of the quality of the final product.

Therefore, by controlling the coating amount of the slaughtered blood dispersion through the step (S130) of removing the excess remaining slaughtered blood dispersion between the particles of the porous materials, it is possible to minimize process and quality problems according to the excessive coating amount. Immediately after the blood dispersion is coated, a blood separation device may be used to separate and remove excess slaughtered blood dispersion of porous materials, and the separated and removed slaughtered blood dispersion may be recycled.

As the blood separation device, a centrifugal separator, a vacuum dehydrator, a high-pressure air injector, a vibrating screen or a rotating screen may be used, and may be replaced with a device that achieves the same purpose and effect.

Thereafter, the porous material in which the coating amount of the slaughtered blood dispersion is adjusted is dried and cured by applying heat under conditions of a certain temperature or higher. Here, before performing the curing treatment, a functional material may be additionally coated in a state in which curing of the surface of the porous material has not occurred.

Accordingly, the present invention may further include a step (S140) of coating a functional material on the surface of the porous material after removing the slaughtered blood dispersion remaining in the porous material (S130).

Here, the functional material coated on the surface of the porous material may be made of ocher powder.

When coating is performed by additionally spraying and applying the functional material ocher powder on the surface of the porous material, deposition of the functional material applied by the slaughter blood dispersion before curing on the surface of the porous material is possible without the application of additional adhesives or binders. Do.

When the surface of the porous material is coated with loess powder, white pearlite used for agriculture or landscaping is not only modified to have aesthetic properties similar to soil, but also moisture adsorption or soil salt control, etc. It can additionally supplement its functionality as a variety of soil modifiers.

Meanwhile, the functional material coated on the surface of the porous material may be made of charcoal powder.

As in the case of coating ocher powder on the surface of the porous material, when coating is performed by additionally spraying and applying charcoal powder, a functional material, on the surface of the porous material, it is applied by the slaughter blood dispersion before curing on the surface of the porous material. Deposition of functional materials is possible without the application of additional adhesives or binders.

When the surface of the porous material is coated with charcoal powder, functions such as adsorption of harmful gases or dust and antibacterial and anti-odor properties can be additionally supplemented.

In addition, in the porous material coated with the functional material through the step (S140) of coating the functional material on the surface of the porous material, functional materials remaining in a state that are not sufficiently bound to the slaughter blood dispersion may be present. And as a method for recovery, it is possible to separate and sort using a vibrating screen, a rotating screen, a trommel screen, a disk screen, an air screen, and the like.

According to the present invention, it is possible to obtain a porous material modified by a method of modifying a porous material using slaughtered blood, and coated with ocher powder or charcoal powder on the surface of a porous material coated with a slaughtered blood dispersion.

Hereinafter, the present invention will be described in more detail by examples. However, the following examples are merely illustrative of the present invention, and the contents of the present invention are not limited to the following examples.

Example 1: Preparation of slaughter blood dispersion

In this example, pig slaughter blood, which is a representative slaughter blood, was used. In general, due to the fibrinogen component contained in slaughtered blood, the blood begins to coagulate after slaughter, and the whole coagulation occurs within 1 to 2 minutes. Various additives are used to prevent coagulation of slaughtered blood, but the price of the additives used at this time is expensive, and the application of the additives may limit the application range of products to which blood by-products are applied.

Therefore, in the present invention, a method of evenly dispersing the naturally coagulated slaughtered blood through physical pretreatment was derived. For the physical pre-treatment, agitating treatment was performed for 5 minutes at a rotation speed of 500 rpm, 1000 rpm, and 1500 rpm, respectively, using a stirrer equipped with rotating blades, and the results are shown in Table 1 below.

In the case of slaughtered blood that has not been subjected to pretreatment, it coagulates and remains solid. When physical dispersion treatment is performed on the coagulated slaughtered blood, the coagulated slaughtered blood can be evenly dispersed again to transform the phase into a colloidal liquid dispersion.

When the actual coagulated slaughtered blood was stirred for 5 minutes at a rotation speed of 500 rpm, it was prepared as a liquid dispersion, but it was confirmed that some blood aggregates were present. When the stirring treatment was performed for 5 minutes at a rotational speed of 1000 rpm, it was confirmed that all fine aggregates were dispersed and disappeared. If the stirring treatment is carried out at a higher rotational speed, the time for preparing the slaughtered blood dispersion can be shortened.

In the case of stirring at a rotational speed of 1500 rpm or higher, air is introduced into the slaughter blood as the slaughtered blood is excessively agitated, and the amino acid hydrophilic groups of proteins, which are the main components of the slaughter blood, are combined with water, and the hydrophobic groups are combined with the incoming air. While the bubble is formed.

In other words, bubbles and micro-air particles generated during the pretreatment process of slaughtered blood and remaining in the slaughtered blood dispersion may cause uneven application during subsequent processing of porous materials, so stirring at a rotation speed of less than 1500 rpm to prevent bubbles from occurring. Do the treatment.

Changes in blood characteristics according to pretreatment of slaughtered blood Untreated slaughtered blood
(Solidified state) Applied for 5 minutes at a rotational speed of 500rpm Coagulated blood residual solids that are not dispersed after treatment with a physical stirring device Exterior
characteristic

Applying for 5 minutes at a rotational speed of 1000 rpm. Evenly distributed slaughter blood after physical dispersing device treatment Blood condition of slaughter after stirring for 5 minutes at a rotational speed of 1500rpm (foaming) Exterior
characteristic

The solid content of the slaughtered blood dispersion prepared through pretreatment was confirmed to be 21.1% by weight, and at this time, the viscosity was measured using a rotary viscometer (LVDV-II+ PRO, Brookfield Co., Ltd.) at 23°C under 61 spindle conditions, resulting in 7.02 cPs. It was shown, and it was found that immersion and spraying have a possible degree of viscosity.

Example 2: Changes in coating amount of slaughter blood dispersion according to the coating of slaughter blood dispersion depending on the type of material

Each material was coated on the prepared slaughter blood dispersion for each type to evaluate the coating potential for each material. As for the materials applied to the coating, pearlite with a specific gravity of 1kg/㎥ or less and a specific surface area of about 400㎡/g and Masato with a specific gravity of 1kg/㎥ or more were used, and as an organic material, the specific gravity is 0.1~0.2kg. The applicability of coating for each material through the coating of slaughter blood dispersion was evaluated using rice husks between /㎥, bark with a specific gravity of 0.2~0.5kg/㎥, and carbonized rice husks made of carbonized rice husks among carbides of organic materials.

For pearlite, 80-95% of the size of 2.5 mm or more, 10-20% of the size of 1.2-2.5 mm, and 1-5% of the size of 0.6-1.2 mm were used. To remove fine particles, it was used after washing on a mesh of 30 mesh (0.5 ㎜) size. Expanded vermiculite was used after being washed on a net of 2.0 mm or larger, 44-54% for a size of 2.0 mm or more, 11-21% for a size of 1.7-2.0 mm, and a size of 0.85 to 1.7 mm. The product was used with a size of 29~39% and less than 0.85㎜ distributed in 1~5%, and the rice husk and carbonized rice hull were used after removing fines through a mesh of 30 mesh (0.5㎜) size, and the bark was used. It was used after classifying by using a 2~6mesh (11.2~3.35㎜) size net.

Perlite, Masato, rice husk, bark, and carbonized rice husk were each immersed in the slaughtered blood dispersion for 5 seconds to measure the amount of remaining slaughtered blood dispersion, and 120±10 rpm using a centrifugal blood separation device for each immersed material. It was dehydrated for 10 seconds under the conditions of to remove the slaughtered blood dispersion on the surface, and the residual amount was evaluated. After controlling the coating amount of the slaughtered blood dispersion, drying and curing were performed using a hot-air curing drying apparatus at 180° C. for 10 minutes, and the coating amount of the final slaughtered blood dispersion was evaluated.

The coating amount according to the application of the slaughter blood dispersion was evaluated using the following equation.

When the inorganic material was coated with the slaughter blood dispersion, the weight increased after coating perlite, Masato, and expanded vermiculite, that is, the amount of coating was 7.4%, 0.2%, and 25.4%, respectively. In the case of Masato, unlike pearlite or expanded vermiculite, since almost no surface pores and internal pores exist, it was confirmed that the coating amount of the slaughtered blood dispersion was very small. In the case of the expanded vermiculite used in this example, it was confirmed that the particle size was relatively small compared to pearlite, and the overall specific surface area was large, so that the coating amount appeared relatively high.

When the slaughtered blood dispersion was coated on organic materials such as rice husk, bark, and carbonized rice husk, the coating amount was 15.0%, 10.7%, and 58.6%, respectively. It was confirmed that the coating amount of the organic material appeared higher than that of the inorganic material, and it was confirmed that the coating amount appeared very high in the case of carbonized rice husks with many surface voids.

In order to check the coating properties of additional slaughter blood dispersions and the coating properties of secondary functional materials later, experiments were conducted using pearlite, an inorganic material having a uniform size, which is a porous material with many pores on the surface and has no backside in the material. .

Changes in coating amount of slaughter blood dispersion depending on the type of material
Classification
Kinds Amount of slaughtered blood dispersion by material after immersion treatment (wt.%) Amount of slaughtered blood dispersion by material after coating amount control treatment (wt.%) Coating amount of slaughtered blood dispersion after drying hardening treatment (wt.%)
Inorganic material Pearlite 105.6 54.0 7.4 Masato 9.7 2.6 0.2 Expanded vermiculite 355.2 153.2 25.4
Organic material chaff 392.5 113.4 15.0 Bark (2~6mesh) 151.3 79.8 10.7 Carbonized Chaff 936.6 288.3 58.6

Appearance characteristics before coating of slaughter blood dispersion by material Pearlite Masato Expanded vermiculite


Exterior Photo

chaff fell Carbonized Chaff

Appearance characteristics after coating of slaughtered blood dispersion by material Pearlite Masato Expanded vermiculite


Exterior Photo

chaff fell Carbonized Chaff

Example 3: porosity Slaughter blood for material Changes in coating amount of slaughter blood dispersion according to dispersion coating

An experiment was conducted to derive appropriate treatment conditions by evaluating the change in the coating amount of the slaughtered blood dispersion coated on the surface of the porous material according to the application conditions of the prepared slaughtered blood dispersion. In this example, pearlite was applied as a porous material. Pearlite is divided into types A, B, and C by particle size, and has a total porosity of about 65 to 80%, and a specific gravity of 0.11 to 0.17 g/cm.

Particle size distribution by type of pearlite Item/Article Name A type B type C type


Particle size (%) 5.0㎜ or more - - - 2.5mm or more 80~95 45~65 1-5 1.2mm or more 10-20 30~40 70~80 0.6mm or more 1-5 5-10 10-20 0.3mm or more - 1-5 1-10 0.15㎜ or more - - 1-5 0.15㎜ or less - - 0~5

Various methods such as immersion coating, spray coating, spray coating and brushing coating can be applied to the coating of the slaughtered blood dispersion, but in this experiment, the coating amount of the slaughtered blood dispersion was evaluated through immersion treatment. Pearlite type A was immersed in the slaughtered blood dispersion for 5 seconds and 60 seconds, respectively, and the amount of the slaughtered blood dispersion remaining in the pearlite was measured. Dehydration was performed for 10 seconds to remove the slaughtered blood dispersion on the pearlite surface, and the residual amount was evaluated. After adjusting the coating amount of the slaughtered blood dispersion, curing and drying were performed at 180° C. for 10 minutes using a hot-air curing drying apparatus, and the coating amount of the final slaughtered blood dispersion was evaluated.

The coating amount according to the slaughter blood dispersion coating was evaluated using the following equation.

In the case of the immersion treatment of perlite, it was confirmed that the amount of the slaughtered blood dispersion liquid applied to the perlite hardly changed depending on the immersion time. It was found that the immersion treatment time did not significantly affect the coating amount when it was observed that the coating amount remained constant even after the coating amount control process and curing drying. Since pearlite is not a hydrophilic material that absorbs moisture and swells, it is judged that there is no structural change or absorption of the slaughtered blood dispersion into the structure even if the immersion time is changed, so that the coating amount does not change.

Evaluation of perlite slaughter blood dispersion coating amount by immersion time Immersion
time Amount of slaughtered blood dispersion remaining in the porous material after immersion treatment (wt.%) After coating amount control treatment
Remaining in the porous material
Slaughter blood dispersion (wt.%) After dry hardening treatment
Slaughter blood dispersion coating amount (wt.%) 5 seconds 88.5±12 54.0±5 7.4±2 60 seconds 88.9±12 54.4±5 7.0±2

Changes in coating amount of slaughtered blood dispersion according to pearlite particle size were evaluated. As shown in Table 5, pearlite types A, B, and C having different particle sizes were each immersed in the slaughter blood dispersion for 30 seconds, and then the coating amount was adjusted for 10 seconds at 120±10 rpm for overcoated slaughter. After removing the blood dispersion, drying and curing were performed for 10 minutes under a hot air condition at 180°C. In the final samples, the coating amount of the slaughtered blood dispersion based on the total dry weight is shown in Table 7, and it was confirmed that the smaller the pearlite particles, the higher the final coating amount appeared. The smaller the particle size, the larger the specific surface area, and the particle size of the porous material has an important effect on the coating amount.Therefore, it was confirmed that the mixing of fine particles that appear in the porous material can greatly affect the overall coating amount control. .

Therefore, in order to uniformly modify the porous material, particle size selection and selection processes such as removing fine particles from the porous material are required.

Changes in coating amount of all slaughtered blood dispersions according to the particle size of pearlite A type B type C type All of the slaughtered blood dispersions of the final product
Coating amount (wt.%) 7.4 19.7 25.5

Example 4 : Slaughter Evaluation of method for controlling coating amount after coating blood dispersion

When a slaughter blood dispersion is applied to a porous material by treatment such as immersion, a large amount of slaughtered blood dispersion is present not only on the surface of the porous material, but also between the porous material particles. Problems can arise. In addition, in consideration of the functionality and utility of the porous material, a method of adjusting the coating amount of the slaughtered blood dispersion is indispensable.In this embodiment, after the perlite is immersed in the slaughtered blood dispersion for 5 seconds, residual slaughtered blood under various conditions The dispersion liquid removal treatment was performed. Through this, data and methods for securing optimal conditions and process conditions for controlling the amount of final remaining slaughtered blood dispersion were provided.

A pearlite class A sample was immersed in the slaughtered blood dispersion for 5 seconds, and then a centrifugal blood separation device was applied for 1 second, 5 seconds, 10 seconds, 30 seconds and 60 seconds respectively at a rotation speed of 120±10 rpm. Treatment was performed, and a treatment for removing the residual amount of the slaughtered blood dispersion was performed under conditions of treatment for 300 seconds at a rotational speed of 3000 rpm. In addition, in the case of untreated, the slaughtered blood dispersion was immersed in the slaughtered blood dispersion, and then the slaughtered blood dispersion was removed by gravity for 1 minute in a 30 mesh-sized network. Each of the samples thus treated were dried and cured for 10 minutes under a hot air condition at 180°C. In the final samples, the coating amount of the slaughtered blood dispersion based on the total dry weight is shown in Table 7. In the case of the untreated sample prepared without any special treatment after the immersion treatment, it was confirmed that the total dry coating amount of the slaughtered blood dispersion reached 29%. In the centrifugal treatment method, an increase in rpm and an increase in treatment time resulted in a decrease in the coating amount, but it was confirmed that the decrease in the coating amount decreased sharply after 10 seconds at 120 rpm.

Changes in final total coating amount after drying and curing according to the conditions of removing residual slaughter blood dispersion after immersion treatment Residual slaughter blood dispersion
Removal condition Centrifugation
Processing time (seconds) Blood after drying
Coating amount (%) One Untreated - 29±4.0 2 120±10rpm One 10.5±2.0 3 120±10rpm 5 7.8±2.0 4 120±10rpm 10 7.0±2.0 5 120±10rpm 30 7.0±2.0 6 120±10rpm 60 6.5±2.0 7 3000rpm 300 1.5±0.2

Table 9 shows the state of pearlite before drying and curing after removal of the residual amount of slaughtered blood dispersion.Under the untreated condition, excessive slaughtered blood dispersion still remained, so it was confirmed that the slaughtered blood dispersion was smeared outside, and the rotation of 120±10 rpm. Under the condition of treatment for 10 seconds at a speed, it does not flow to the outside, but when it comes into contact with the surface, it was confirmed that some of the slaughtered blood dispersions were buried. It was confirmed that there was almost no slaughter blood dispersion on the surface under the condition of treatment for 5 minutes at a rotational speed of 3000 rpm. Under the condition of 5 minutes treatment at a rotation speed of 3000rpm to remove the slaughter blood dispersion under excessive conditions, the slaughter blood dispersion does not remain sufficiently on the surface, so when the secondary coating with functional substances is applied later, the coating is well formed without the application of additional adhesives. It turns out not to lose.

Perlite surface characteristics before drying and curing after removal of residual slaughter blood dispersion according to the removal conditions of residual slaughter blood dispersion Untreated 120±10rpm, 10 seconds treatment 3000rpm, 5 minutes processing

Exterior
characteristic

The remaining slaughtered blood dispersion was treated by each removal method, and then dried and cured to evaluate the appearance characteristics of the prepared samples. In the case of the untreated sample containing a large amount of residual slaughtered blood dispersion, it was confirmed that agglomeration phenomenon occurred largely due to blood existing between the particles. Even when the treatment was performed at a rotation speed of 120 rpm for 5 seconds, some agglomeration phenomenon appeared, but when the treatment was performed at a rotation speed of 120 rpm for 10 seconds, it was confirmed that the agglomeration phenomenon hardly appeared.

As a result of these results, it was confirmed that aggregation or agglomeration occurs in the final product if the slaughter blood dispersion, which remains excessively on the surface of the porous material, is not properly removed after the application of immersion treatment of the slaughtered blood dispersion. In the case of excessive removal, the modifying effect of the porous material is deteriorated, and the process efficiency may rapidly decrease in the secondary coating of a functional material.

Evaluation of appearance characteristics after drying of slaughtered blood dispersion-coated pearlite after removal of slaughtered blood dispersion under conditions of slaughtered blood dispersion removal Untreated
(A lot of clumping occurs) 120rpm, 5 seconds processing
(Some clumping occurs) 120rpm, 10 seconds processing
(No aggregation phenomenon)

Exterior
characteristic

Example 5: Perlite For immersion treatment Evaluation of absorption characteristics of blood dispersion from slaughter

When the slaughtered blood dispersion was immersed in pearlite, the degree of absorption of the slaughtered blood dispersion was confirmed by cutting the perlite cross section for each process step. After the pearlite was immersed in the slaughtered blood dispersion for 5 seconds, the external residual slaughtered blood dispersion was removed at a rotation speed of 120±10 rpm for 10 seconds, and then treated at 180° C. for 10 minutes under drying and curing conditions to prepare a sample. I did.

As shown in Table 11, when the cross section of the pearlite from which the residual slaughtered blood dispersion was removed after immersion was confirmed, it was confirmed that the slaughtered blood dispersion was evenly absorbed and distributed inside the pearlite. In this way, the slaughtered blood dispersion absorbed into the perlite's inner side is part of the slaughtered blood that migrates to the surface during the drying and curing process, and part of it escapes to the outside to form a relatively thick surface blood layer. It has the effect of strengthening structural rigidity by adhesive bonding and curing.

Evaluation of the internal absorption characteristics of the modified treatment solution according to the conditions for controlling the amount of modified coating Condition Perlite cross section 120±10rpm, perlite cross section after 10 seconds treatment Cross section of modified pearlite dried and cured after treatment at 120±10 rpm for 10 seconds

section

Example 6: Changes in coating properties of slaughtered blood dispersions according to drying and curing temperature conditions

Pearlite with a controlled coating amount of slaughtered blood dispersion is dried and cured to make a product. At this time, structural and functional properties according to drying and curing temperature conditions were evaluated.

In this example, pearlite was immersed in the slaughtered blood dispersion for 5 seconds, and the residual blood volume was adjusted for 10 seconds at a rotation speed of 120±10 rpm, and then 70°C, 130°C, 180°C, 240°C, 250°C, 260°C. After 10 minutes of treatment at each of the drying and curing temperature conditions of, the change in properties was evaluated.

As shown in Table 12, in the drying and curing conditions, the lower the temperature, the more similar the color of blood, and the higher the temperature, the more drying and curing occurred, so that the color became darker.

When the drying and curing conditions were increased from 240°C to 250°C, it was confirmed that some carbonization proceeds on the surface. In the drying condition at 260°C, it was confirmed that carbonization occurred completely and the surface was burned black. Therefore, it was confirmed that the drying temperature was effective below 240°C.

Drying and hardening characteristics and surface carbonization by temperature conditions 70℃ drying and curing pearlite 130℃ drying and curing perlite 180℃ drying and curing pearlite
Exterior
characteristic

240℃ drying and curing pearlite 250℃ dried and cured pearlite 260℃ dried and cured pearlite
Exterior
characteristic

Example 7: Modification according to drying and curing temperature conditions Pearlite Characteristic change

Changes in the properties of the modified pearlite prepared under the respective drying and curing temperature conditions presented in Example 6 were evaluated. As shown in Table 13, as the drying and curing temperature increased, it was confirmed that the water loosening property of the modified pearlite increased. In particular, when the drying and curing temperature conditions are 70℃, the color of the water changes as part of the cured slaughtered blood dispersion is dissolved in water. I was able to confirm that there were few.

In the case of manufacturing a product to which functional substances are additionally applied by applying this technology that can control the saturation of the cured slaughter blood dispersion through curing temperature control in the curing of the slaughtered blood dispersion, the purpose of using additionally applied functional substances Accordingly, it can be confirmed that it is possible to manufacture a product having an appropriate solubility control function such as fast-acting or slow-acting.

Evaluation of water loosening by difference in drying temperature of pearlite coated with slaughtered blood dispersion At 70℃ condition after surface coating
Dry hardened pearlite At 130℃ condition after surface coating
Dry hardened pearlite
Water release
(2 hours after immersion in water)

Pearlite dried and cured at 180℃ after surface coating After surface coating, at 240℃
Dry hardened pearlite Water release
(2 hours after immersion in water)

Example 8: according to the application of slaughter blood dispersion Pearlite Wear resistance change

Porous materials have a relatively low wear resistance due to their low-density structure, so that the surface layer is easily abraded and ground during transportation, transportation, storage, and product utilization. Through the application and hardening of the slaughter blood dispersion, the effect of enhancing the wear resistance of these porous materials was confirmed. The slaughtered blood dispersion dispersed in pearlite was treated under the conditions of Example 6, and the change in abrasion resistance according to the drying and curing temperature conditions was compared and evaluated.

To evaluate the abrasion resistance, put the treated pearlite sample together with 10 iron beads having a diameter of 2 mm in a certain volume in a plastic container, and then stir the sample at a rotational speed of 200 rpm for 5 minutes using a shaker to wear and grind the sample. After induction, the fine powder generated by abrasion and breakage by the stirring treatment was removed with a screen having a size of 30 mesh, and the weight of the remaining pearlite sample was measured to evaluate the weight ratio of the remaining pearlite after the treatment to the weight of the pearlite before treatment. The equation below is an equation to quantitatively obtain abrasion resistance, and it means that the higher the wear resistance value, the stronger the surface strength, so that abrasion does not occur easily.

The abrasion resistance of the modified pearlite samples prepared under each condition was evaluated and shown in Table 14. It was confirmed that the treatment of the slaughtered blood dispersion greatly increased the abrasion resistance compared to the case of untreated pearlite. In particular, it was confirmed that even when the coating amount of the slaughtered blood dispersion was at the same level, the higher the drying and curing temperature conditions, the higher the abrasion resistance. As in the results presented in Example 7, it was determined that hardening occurred more strongly under relatively high temperature drying and hardening conditions around 180°C, thereby increasing abrasion resistance and water resistance.

In the case of increasing the structural rigidity of the porous material by coating the slaughtered blood dispersion according to this embodiment, the curing of the slaughtered blood dispersion is further strengthened by applying drying and curing temperature conditions around 180°C. We have secured a way to further increase.

Evaluation of abrasion resistance by drying temperature after coating of slaughter blood dispersion Untreated
Pearlite 80℃ dry curing after coating of slaughter blood dispersion Dry curing at 130℃ after coating of slaughter blood dispersion Dry curing at 180℃ after coating of slaughter blood dispersion Wear resistance (%) 81.3 95.8 96.0 98.9

Example 9: according to the application of slaughter blood dispersion Pearlite Change in impact resistance

It was confirmed in Example 5 and Table 11 that when the slaughtered blood dispersion was immersed in the porous material, the slaughtered blood dispersion was penetrated and absorbed into the porous material. When the porous material is penetrated and cured, the strength characteristics of the internal structure of the porous material can also be reinforced.

In order to confirm the effect of improving the internal strength characteristics by the slaughter blood dispersion treatment, the impact resistance of the untreated pearlite and the modified pearlite prepared under the conditions of Example 5 was compared and evaluated.

To evaluate the impact resistance, after placing each pearlite sample in an area of 5cm×5cm, a weight of about 7kg (7,029g) having an area of 5cm×5cm was dropped onto the pearlite sample from a height of 100mm to a certain extent. The impact was applied. The weight of the pearlite sample was removed by separating and removing the fine particles of the pearlite sample with a screen having a size of 30 mesh, and the weight of the residual pearlite sample was measured. Through this test method, the impact resistance was calculated and evaluated as shown in the following equation.

As shown in Table 15, in the case of the modified pearlite dried and cured by immersing in the slaughtered blood dispersion, it was confirmed that the impact resistance was significantly increased compared to the untreated pearlite. This increase in impact resistance was determined to be due to the internal hardening of the slaughtered blood dispersion remaining after the slaughtered blood dispersion absorbed into the porous structure was migrated to a part of the surface through a drying and curing process, as confirmed in Example 4.

It was confirmed that the treatment of the slaughtered blood dispersion improved the durability on the surface and internally improved the impact resistance.

Changes in impact resistance of pearlite according to slaughter blood dispersion coating Untreated perlite Slaughter blood dispersion coating modified pearlite Impact resistance (%) 80 92

Example 10: Perlite Evaluation of the effect of secondary coating of functional substances after coating of slaughter blood dispersion

After coating perlite with slaughtered blood dispersion and removing excess slaughtered blood dispersion, additionally applying functional powder or liquid material before drying and curing treatment, and in case of secondary coating, slaughter blood dispersion before curing on the surface. The deposition of the functional material coated by means is possible without the application of additional adhesives or binders. In this example, after coating the slaughtered blood dispersion liquid on perlite under the conditions of Example 5 and removing the residual slaughtered blood dispersion, as a functional material, loess powder having a particle size passing through a screen having a size of 325 mesh, and a screen having a size of 30 mesh. Secondary coating was performed with charcoal powder having a particle size passing through.

At this time, each powder was sprayed and coated on the pearlite sample in an uncured state after being treated with a slaughtered blood dispersion, and then dried and cured under a temperature condition of 180°C to obtain a modified pearlite sample containing a functional substance on the surface. Was prepared.

After the curing treatment, functional materials that were not bound to the pearlite surface and remained were removed through a screen having a size of 30 mesh to prepare a final sample, and its properties were evaluated.

Table 16 compares the appearance of a pearlite sample coated with ocher powder without a slaughter blood dispersion coating treatment, and a pearlite sample coated with red clay powder and charcoal powder before drying and curing during the slaughter blood dispersion coating process. It was confirmed that the loess powder and charcoal powder applied during the coating of the slaughter blood dispersion were strongly bound to the pearlite surface with the curing of the slaughter blood dispersion. The application of these ocher powder and charcoal powder is a result showing that the functionality of various functional powders can be applied to porous materials such as pearlite without the application of special adhesives or additional binders.

Through the application of loess powder, not only does the white color of perlite, which is used for agriculture or landscaping, have an aesthetic characteristic similar to that of the soil, but also supplements its functionality as a variety of soil modifiers such as moisture absorption and soil salt control. It shows that it can be done. In the case of charcoal powder, functions such as adsorption of harmful gases and antibacterial properties are provided to pearlite.

It has been shown that it is possible to manufacture functional porous materials composed of eco-friendly materials without the application of additional adhesives or binders by applying a variety of functional materials alone or in combination through the secondary coating technology after coating the slaughtered blood dispersion and before drying and curing.

Comparison of appearance characteristics of modified pearlite to which a functional material is applied by a secondary coating during slaughter blood dispersion treatment process Condition Unmodified perlite Untreated loess powder coating Exterior

Condition After coating of slaughter blood dispersion
Red clay powder secondary coating pearlite
(120±10rpm, 10 seconds) After coating of slaughter blood dispersion
Charcoal powder secondary coating pearlite
(120±10rpm, 10 seconds) Exterior

Table 17 shows the surface appearance characteristics of the modified pearlite shown in Table 16 and the pearlite to which the functional material was added as a secondary coating. Compared with untreated pearlite, it was confirmed that in the case of pearlite treated with slaughtered blood dispersion, some slaughtered blood dispersion was hardened and existed therein. In particular, it was confirmed that a large amount of slaughtered blood dispersion was hardened and existed on the surface. After the slaughtered blood dispersion was treated, a secondary coating of the loess powder before curing was performed.In the case of the cured perlite, the unbound loess powder was sufficiently removed from the 30 mesh screen, and a significant amount of the loess powder bound to the surface was confirmed. Could. These loess powders were found to be strongly bound to perlite by the uncured slaughtered blood dispersion.

Changes in surface appearance characteristics of modified pearlite by treatment of slaughter blood dispersion and secondary coating of functional loess powder Condition Untreated perlite Dried and cured pearlite after treatment with slaughtered blood dispersion Dried and cured pearlite after secondary coating of loess powder after treatment with slaughter blood dispersion section

Table 18 shows the weight change of pearlite due to the treatment of the slaughtered blood dispersion and the secondary coating treatment of the additional functional powder material. When the slaughtered blood dispersion was not treated, it was found that the surface of the loess powder was not bound, so that after the screen treatment with a size of 30 mesh, the residual loess powder hardly appeared. If only the slaughtered blood dispersion was treated, the weight increased by about 7 wt.%, but when the loess powder before curing after the treatment of the slaughtered blood dispersion was treated, it was confirmed that the weight increased by about two times, and in the case of charcoal powder. It was also confirmed that the weight increased by about 20% or more. This difference in weight increase was judged to occur due to the difference in particle size and specific gravity of loess powder and charcoal powder.

These results show that through the slaughter blood dispersion treatment of porous materials and secondary coating treatment of various functional materials, various modification treatments such as specific gravity and surface density control, etc., as well as functional enhancement can be possible.

Weight increase of modified pearlite by treatment of slaughter blood dispersion and secondary coating of functional substances Conditions for removal of slaughter blood dispersion Coating material Pearlite weight (g) Weight gain by slaughter blood dispersion treatment (g) Weight of final sample after secondary coating (g) One Slaughter blood dispersion untreated Loess powder 10 - - 2
120±10rpm, 10 seconds - 10 +0.7 10.7±0.2 3 Loess powder 10 +0.7 20.4±2 4 Charcoal powder 10 +0.7 13.0±0.5

Example 11: Change in process efficiency by secondary coating treatment of functional materials

Application of the secondary coating of loess powder and charcoal powder has the effect of increasing the process efficiency by reducing the drying and curing time of the slaughtered blood dispersion. In Table 19, the drying time required when the slaughtered blood dispersion was treated under the conditions of Example 5, dried and cured without additional secondary coating, and when the red clay powder and charcoal powder were secondary coated respectively, the curing and drying time required. This is the result of comparative evaluation of time.

Through these results, it can be seen that the secondary coating of functional materials having a low moisture content increases the drying and curing process efficiency, thereby reducing production cost and increasing production efficiency.

Changes in drying and curing time of slaughter blood dispersion by secondary coating of loess powder and charcoal powder Drying time (minutes) Untreated 6 minutes 10 seconds ±1.0 2nd coating of loess powder 5 minutes 30 seconds ±1.0 Secondary coating of charcoal powder 5 minutes 45 seconds ±1.0

Example 12: Comparison of the effect of mixed application of slaughter blood dispersion and functional substances

An experiment was conducted to find out the effect of the method of applying a functional substance to a porous material by mixing a functional substance in a dispersion-treated slaughtered blood dispersion. After mixing the slaughtered blood dispersion and loess powder at a weight ratio of 1:1, perlite was immersed and the effect was evaluated. In the case of the slaughtered blood dispersion mixed with the loess powder, the slaughtered blood dispersion and the loess powder were entangled in the process for controlling the coating amount after the immersion treatment, and aggregating phenomenon occurred in the part, making it impossible to uniformly control the coating amount. In addition, after drying and curing treatment, it was confirmed that the prepared modified pearlite particles adhered to each other as shown in Table 20. Therefore, it was found that the mixed application of the slaughtered blood dispersion and the functional substance resulted in a decrease in process efficiency and quality.

Appearance characteristics after drying and curing of modified pearlite applied by mixing a slaughtered blood dispersion and loess powder in a ratio of 1:1

Example 13: slaughter blood dispersion Immersion Changes in coating amount of slaughtered blood dispersion and secondary coating amount of functional substances according to treatment conditions of residual slaughtered blood dispersion after treatment

It is shown in Example 4 that the throughput of the slaughtered blood dispersion of a porous material is changed according to the treatment conditions for removing the residual slaughtered blood dispersion after immersion of the slaughtered blood dispersion. The effect of the change in the coating amount of the slaughter blood dispersion on the coating amount during the secondary coating of the functional material was investigated.

As shown in Table 21, the coating amount varies depending on the removal condition of the residual slaughter blood dispersion after immersion. I could confirm that.

Treatment process conditions of residual slaughter blood dispersion (rpm) Residual slaughter blood dispersion treatment process time (seconds) Total coating amount of slaughtered blood dispersion (weight ratio, %) Weight gain by loess powder treatment (g) One Untreated - 29±7 45±6 2 120±10rpm 5 7.8±3 26±3 3 120±10rpm 10 7.0±2 20.4±2 4 120±10rpm 60 6.5±2 19±2

Example 14: Changes in wear resistance of final products by secondary coating of functional materials

The abrasion resistance of the final product, which was coated with a slaughter blood dispersion and subjected to a secondary coating of the functional material, was dried and cured, was evaluated. As in the method presented in Example 8, the wear resistance of each sample was evaluated, and the results are shown in Table 22. Each sample was prepared by the method described in Example 8. Perlite modified by applying slaughter blood dispersion was found to have the highest abrasion resistance, and perlite modified by treating loess powder and charcoal powder also showed relatively high abrasion resistance compared to untreated samples. Compared with pearlite that is not coated with functional powders, it was found that some of the loess powder and charcoal powder came off due to hits such as iron beads during the abrasion resistance measurement process, but it was found to maintain relatively high abrasion resistance.

Perlite wear resistance change by treatment of slaughter blood dispersion and secondary coating of functional substances Untreated perlite Slaughter Blood Dispersion Coating Pearlite After coating the slaughter blood dispersion, the second coat of loess powder, pearlite Charcoal powder secondary coating pearlite after coating of slaughter blood dispersion Wear resistance (%) 81.3 98.9 92.7 93.8

Although the present invention has been described based on a preferred embodiment with reference to the accompanying drawings, it is apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the present invention from this description. Accordingly, the scope of the present invention should be interpreted by the claims set forth to include examples of such many modifications.

Claims (9)

Coating the slaughtered blood dispersion prepared through pretreatment of slaughtered blood on a porous material;
Including; drying and curing the porous material coated with the slaughtered blood dispersion,
After the step of coating the slaughtered blood dispersion on the porous material, further comprising removing the slaughtered blood dispersion remaining in the porous material using a blood separation device,
After the step of removing excess slaughter blood dispersion remaining in the porous material, further comprising coating a functional material on the surface of the porous material, wherein the functional material coated on the surface of the porous material is ocher powder, charcoal powder, It is a substance selected from zeolite powder, clay powder, wood vinegar liquid, silicic acid solution, and citric acid,
Fine particles generated due to the characteristics of being easily broken in the process of transporting and storing porous materials having various shapes through the step of selecting the size of the porous material and removing the fine particles before the step of coating the slaughtered blood dispersion on the porous material A method of modifying a porous material using slaughtered blood, characterized in that the porous material having a size of a certain range is selected and prepared as a raw material.
The method according to claim 1,
The porous material is one selected from the group consisting of perlite, vermiculite, expanded vermiculite, lightweight aggregate, volcanic stone, zeolite, charcoal, expanded chaff, carbonized chaff, silica gel, aerogel, ceramic material, activated carbon, matsutake, and basalt. Porous material modification method using slaughtered blood.
The method according to claim 1,
The steps of coating the slaughtered blood dispersion on the porous material include an immersion coating method in which a porous material is immersed in the slaughtered blood dispersion, a spray coating method in which the slaughtered blood dispersion is sprayed on the transported porous material, and the slaughtered blood dispersion is sprayed on the transported porous material. A method of modifying a porous material using slaughtered blood, characterized in that it is carried out by any one of a spray coating method and a brushing coating method in which the slaughtered blood dispersion is brushed with a brush on the transported porous material.
The method according to claim 1,
The step of drying and curing the porous material coated with the slaughtered blood dispersion is performed for 1 to 20 minutes at a temperature of 70 to 240°C.
The method according to claim 1,
Before the step of coating the slaughtered blood dispersion on the porous material, the slaughtered blood is added to a stirrer and stirred for 3 to 8 minutes at a rotational speed of 500 to 1500 rpm to prepare a slaughtered blood dispersion. Porous material modification method using slaughtered blood.
delete delete delete It is modified by the method of modifying the porous material using slaughtered blood according to any one of claims 1 to 5, and on the surface of the porous material coated with the slaughtered blood dispersion, loess powder, charcoal powder, zeolite powder, clay powder, grass liquor, silicic acid Porous material coated with a material selected from liquid and citric acid.

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