KR102349378B1 - Flooring material using walnut shell chips and photoluminescent pigment and its manufacturing method - Google Patents

Abstract

The present invention relates to a floor material using walnut shell chips and phosphorescent pigment, and a manufacturing method thereof. More specifically, the present invention relates to the floor material which improves visibility by using the phosphorescent pigment to secure field of view when being applied to a walking path, a bicycle road, and the like so as to improve safety, and uses the walnut shell chips that are natural substances to be excellent in water permeability and ecofriendliness. The manufacturing method comprises the following steps of: preparing the walnut shell chips; manufacturing a first coating material by adding the phosphorescent pigment to a binder mixture or a primer; adding the first coating material to the walnut shell chips and stirring the same; manufacturing a second coating material by adding UV coating material to the binder mixture or the primer; adding the second coating material to the walnut shell chips and stirring the same; drying the walnut shell chips; and adding a first mixture to the walnut shell chips and mixing the same.

Description

Flooring material using walnut shell chips and phosphorescent pigment and manufacturing method thereof

The present invention relates to a flooring material using a walnut shell chip and a phosphorescent pigment, and more particularly, to a flooring material using a phosphorescent pigment to improve visibility, so that visibility is secured when applied to a walking path, a bicycle road, etc. It relates to an eco-friendly flooring material having excellent water permeability and a method for manufacturing the same using

In general, trails and bicycle paths were created to improve the convenience and health of residents, and for the walkways and bicycle paths, boundary stones were installed on both sides between the landscape and trees to expose the natural soil to create walking paths and trails. When constructing or artificially constructing a bicycle road, most of them are installed by addressing the ground using a sidewalk block made of cement or by pouring it on the ground using concrete or asphalt concrete.

Conventional walking trails and bicycle paths that expose natural soil have a defect in that the soil is washed away in the rain and the trails are easily lost and maintenance occurs frequently. Although it has the advantages of excellent durability and easy construction, there is a problem in that a user accidentally falls or a serious injury occurs even in a light collision of the user.

In order to solve this problem, a pavement material having a certain length and width is formed by mixing rubber chips and silica sand, which are crushed to a certain size, with an adhesive in a certain ratio, and then, an adhesive is applied to the surface of asphalt or concrete. And, there is a case that the molded packaging material is double-packed to promote the safety of users, but there is a problem in that dust or odor is generated severely from the rubber chip, and harmful substances are emitted from the waste tire. In addition, some products contain heavy metals, so there is a problem in that environmental pollution occurs.

Accordingly, in recent years, eco-friendly road paving materials that can be eco-friendly road paving while having excellent elasticity and permeability or drainage inducing performance by using crushed cork have been widely used. At this time, if pure cork chips are crushed and used directly for road pavement, there is a problem that the strength of the cork chips itself is weak. Because durability is reduced due to various problems such as the same, cork chip elastic pavement processed through various surface processing steps in advance is used for road pavement.

In this way, elastic packaging materials using rubber chips or cork chips have been used, and these elastic packaging materials have the advantage of being convenient when walking because they can give elasticity. There was a disadvantage in that there was a high possibility of safety accidents due to depressions or stepped parts as cracks occurred in the corresponding part due to the elevation or deflection of the ground because the tensile strength and the degree of deformation were not large.

Korean Patent Registration No. 10-2032778 (2019.10.10.)

The present invention has been devised in view of the above problems, and an object of the present invention is to have excellent breathability and water permeability, so that it can be used on a walking path, a bicycle road, etc.

And another object of the present invention is to reuse the walnut shell to prevent environmental pollution and to provide an eco-friendly flooring material and a method for manufacturing the same.

In addition, another object of the present invention is to ensure visibility of walking trails and bicycle paths at night, and to prevent discoloration and fading due to ultraviolet rays. To provide a flooring material and a method for manufacturing the same.

According to a feature of the present invention for achieving the above object, the present invention comprises the steps of preparing a walnut shell chip; A first coating agent is prepared by adding and mixing a phosphorescent pigment to a binder mixture or a primer in which a binder and a thinner are mixed, but the weight ratio of the binder mixture or primer used to prepare the first coating agent: the phosphorescent pigment is 100: 5 to 10 step; A first coating step of adding 5 to 10 parts by weight of the first coating agent to 100 parts by weight of the walnut shell chips and stirring; A second coating agent is prepared by adding and mixing a UV coating agent and a fixing agent to the binder mixture or primer in which the binder and thinner are mixed, but the binder mixture or primer used to prepare the second coating agent: UV coating agent: fixing agent weight ratio is 100: 5-10: step of 5-10 people; A second coating step of adding 4 to 6 parts by weight of the second coating agent to 100 parts by weight of the walnut shell chip mixture obtained through the first coating step and stirring; It may include; a drying step of drying the walnut shell chip mixture obtained through the second coating step.

The step of preparing the walnut shell chips includes grinding the walnut shells; Selecting 2 to 4 mm of walnut shell chips from the pulverized walnut shell chips; After washing the selected walnut shell chips, drying at room temperature for 18 to 30 hours; may include.

In addition, in the first coating step, the walnut shell chips and the first coating agent are stirred at a rotation speed of 60 to 90 RPM for 60 to 80 minutes, and the second coating step is a mixture of the walnut shell chips obtained through the first coating step and the second coating step. 2 The coating agent may be stirred for 30 to 40 minutes at a rotation speed of 60 to 90 RPM per minute.

In addition, in the drying step, it is preferable to dry the walnut shell chip mixture after the second coating step at 200 to 250° C. for 5 to 10 minutes.

In addition, after the drying step, the dried walnut shell chip mixture contains 20 to 50% by weight of biochar, 20 to 50% by weight of calcium carbonate, and 30 to 60% by weight of clay mineral powder containing allophane 1 The step of mixing by adding a mixture; may further include.

Here, the clay mineral powder is preferably a volcanic stone cluster powder containing allophane.

In addition, in the step of adding and mixing the first mixture, 5 to 10 parts by weight of a binder is mixed with 100 parts by weight of the first mixture, and then, in a state in which the first mixture with the binder is accommodated in the hollow body, walnuts It is preferable to mix it with shell chips. In this case, the hollow body has a plurality of through holes formed on its surface.

In addition, after completing the drying step, adding and mixing cork chips to the dried walnut shell chip mixture; in the step of adding and mixing the cork chips, the dried walnut shell chip mixture: cork chips It is preferably 3:7 to 7:3 with respect to the weight ratio.

According to the flooring material using the walnut shell chip and the photoluminescent pigment according to the present invention and the manufacturing method thereof, it is possible to remove the walnut shell after the expiration date has elapsed and disassemble the walnut shell for recycling, thereby reducing the cost of waste treatment and preventing environmental pollution. It works.

And, according to the present invention, there is an advantage that the user can safely walk and drive by securing a view at night on a walking path, a bicycle road, etc. by using a photoluminescent pigment with a semi-permanent lifespan.

In addition, according to the present invention, it is possible to prevent yellowing, discoloration, and discoloration of the UV coating agent from ultraviolet rays, and there is an advantage in that the bonding strength of the walnut chips is increased by using a fixing agent.

And, according to the present invention, although there is no elasticity, it has excellent breathability and water permeability, so that it can be used on a bicycle road, and drainage is improved, thereby preventing a pooling phenomenon.

1 is a schematic flowchart showing a method for manufacturing a flooring material using a walnut shell chip and a phosphorescent pigment according to the present invention;
2 is a view showing a state in which the flooring according to the first embodiment of the present invention is installed.

[ Example One]

Hereinafter, a flooring material using a walnut shell chip and a photoluminescent pigment according to Example 1 of the present invention and a manufacturing method thereof will be described in detail together with the accompanying drawings.

Hereinafter, a preferred embodiment of the present invention and the physical properties of each component will be described in detail, which is intended to describe in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily carry out the invention, This does not mean that the technical spirit and scope of the present invention is limited.

1 is a schematic flowchart illustrating a flooring material using walnut shell chips and a phosphorescent pigment according to the present invention and a method for manufacturing the same, and FIG. 2 is a view showing a state in which the flooring material according to the present invention is installed.

Since the flooring material according to the present invention uses walnut shells, it has low elasticity, good water permeability due to gaps between particles, does not consume water, does not deform, and can be colored after installation. It is a natural material and contains antibacterial ingredients, so it does not go rancid and can be used permanently.

In addition, in the present invention, by using a photoluminescent pigment, a pedestrian can secure a field of view, and thus, safety for walking and driving at night can be improved on a walking path or a bicycle road without artificial light.

In addition, in the present invention, the walnut shell chips are coated by a coating agent, and a UV coating agent and a fixing agent are added to the coating agent to prevent discoloration and fading such as yellowing from UV rays, and to increase the bonding strength of the walnut shell chips, and long-term UV exposure. cracking can be prevented.

To this end, the flooring material using the walnut shell chips and the photoluminescent pigment according to the present invention and the manufacturing method thereof are as shown in FIG. 1 , a walnut shell chip preparation step (S10), a first coating agent manufacturing step (S20), a first coating step (S30), a second coating agent manufacturing step (S40), a second coating step (S50), and is configured to include a drying step (S60).

The step of preparing the walnut shell chips (S10) may include a grinding step (S11), a screening step (S12), a washing and drying step (S13).

The pulverizing step (S11) is a step of pulverizing the walnut shells in the form of chips.

At this time, it is preferable to proceed with the sorting step (S12) of sorting the walnut shell chips of 2 to 4 mm from the pulverized walnut shell chips using a sorter after the pulverization step (S11) is performed.

The washing and drying step (S13) is a step to remove eggs or residues remaining in the walnut shell chips. After washing the pulverized and selected walnut shell chips, drying is performed at room temperature for 18 to 30 hours.

In addition, after the grinding step (S11) or the screening step (S12) is finished, the grinding step of grinding the edges of the walnut shell chips to remove the sharp edges from the pulverized walnut shell chips may be further included.

In the grinding step, the sharp edges of the walnut shells remaining in the grinding process may be easily damaged, and when exposed on the flooring, it is preferable to grind gently because there is a risk of causing trauma to the user. Grinding of walnut shell chips can be performed for about 3 to 6 minutes in a barrel-type grinder rotating at about 100 to 500 rpm.

Next, the first coating agent manufacturing step (S20) is a step of preparing a first coating agent for the primary coating of the walnut shell chips obtained through the walnut shell chip preparation step.

The first coating agent includes 100 parts by weight of a binder mixture or 100 parts by weight of a primer in which a binder and a thinner are mixed so that the solvent-free binder can well permeate the surface of the walnut shell chip, and 100 parts by weight of the binder mixture or 100 parts by weight of the primer It can be prepared by adding and mixing 5 to 10 parts by weight of a phosphorescent pigment.

Here, the binder mixture may be configured by adding and mixing 10 to 20 parts by weight of a thinner to 100 parts by weight of the binder.

And in the first coating step (S30), the first coating agent is added to the walnut shell chips and stirred to prepare a coated walnut shell chip mixture.

Here, the first coating agent is coated on the surface of the walnut shell chips by adding 5 to 10 parts by weight based on 100 parts by weight of the walnut shell chips and stirring.

In addition, in the first coating step, it is preferable to stir the walnut shell chips and the first coating body at a rotation speed of 60 to 90 RPM for 60 to 80 minutes, and through this, the walnut shell chips and the first coating agent are stirred for 60 to 80 minutes If it is stirred during the process, frictional heat is generated in the process, and the photoluminescent pigment is adhered to the surface of the walnut shell chips, so that they do not stick to each other and can be made in a rough state.

Next, the second coating agent manufacturing step (S40) is a step of preparing a second coating agent for secondary coating on the walnut shell chip mixture first coated through the first coating step.

More specifically, the second coating agent may be prepared by adding 5 to 10 parts by weight of a UV coating agent and 5 to 10 parts by weight of a fixing agent to 100 parts by weight of a binder mixture in which a binder and a thinner are mixed or 100 parts by weight of a primer and mixing.

A second coating step (S50) of stirring by adding the second coating agent prepared through the second coating agent manufacturing step (S40) to the first coated walnut shell chip mixture may be performed.

More specifically, in the second coating step (S50), 4 to 6 parts by weight of the second coating agent is added to 100 parts by weight of the walnut shell chip mixture obtained through the first coating step (S30) and stirred to apply a secondary coating. can

In addition, in the second coating step (S50), it is preferable to stir the walnut shell chip mixture and the second coating agent obtained through the first coating step (S30) at a rotation speed of 60 to 90 RPM for 30 to 40 minutes.

The walnut shell chip mixture obtained through this second coating step (S50) may be completed as a flooring material by going through a drying step (S60).

The walnut shell chip mixture after the second coating step (S50) in the drying step (S60) is preferably dried at 200 to 250° C. for 5 to 10 minutes using a dryer.

When a phosphorescent raw material with good luminance and good halos is added to the first coating agent, when applied to a walking path or a bicycle road, visibility can be improved when walking at night, in this case, the phosphorescent raw material is preferably 10㎛ or less Preferably, the photoluminescent raw material is 1 to 10 μm.

Since the photoluminescent material repeats the process of absorbing, accumulating, and emitting light, it has a semi-permanent advantage in terms of use.

And the fixing agent included in the first coating agent is preferably an oil-soluble penetrating wood fixing agent, thereby increasing the bonding strength of the walnut shell chips and improving the durability so that the UV coating agent and the photoluminescent pigment can last for a long time There is an advantage.

More specifically, the fixing agent is preferably a colorless fixing agent composed of hydrocarbons.

In addition, after the drying step (S60) is completed, the first mixture containing the clay mineral powder containing biochar, calcium carbonate, and allophane in the walnut shell chip mixture 100 dried through the drying step (S60) It may further include the step of mixing (S70) by adding more.

The first mixture is preferably mixed by adding 1 to 10 parts by weight based on 100 parts by weight of the walnut shell chip mixture.

And the first mixture may be composed of a mixture containing 20 to 50% by weight of biochar, 20 to 50% by weight of calcium carbonate, and 30 to 60% by weight of the clay mineral powder containing allophane.

Here, the bio-cha may include at least one selected from maple leaf ragweed, corn residue, and the like, and is preferably obtained by thermal decomposition at 200 to 700° C. for 2 to 5 hours.

The clay mineral powder is preferably a volcanic stone cluster powder containing allophane.

Here, biochar has effects such as carbon dioxide reduction, water purification, and heavy metal adsorption, so it can adsorb and remove pollutants in the air and water.

And the volcanic stone cluster powder is preferably a Jeju volcanic stone cluster powder produced by volcanic activity, and has very beneficial functions for the environment, such as heavy metal adsorption ability, deodorization, antibacterial, antifungal, electromagnetic wave blocking and high far-infrared stone emission.

In particular, allophane is formed in a porous spherical structure, has excellent adsorption performance of various substances including heavy metals, and can adsorb NOX and SOX in polluted air.

And the first mixture may be made in a form in which biochar, calcium carbonate, and clay mineral powder are combined, for this purpose, 5 to 10 parts by weight of a binder is added to the first mixture based on 100 parts by weight of the first mixture and mixed it is preferable

And the first mixture in which the binder is mixed and combined in the form of grains may be directly mixed in the walnut shell chip mixture, or the hollow body 200 is mixed with the walnut shell chip mixture in the state accommodated in the hollow body 200 may be mixed.

The hollow body 200 is a hemispherical first body with an open upper side and a hemispherical second body with an open lower side so that the first mixture can be inserted therein. have.

Here, a plurality of through holes 210 may be formed in the hollow body 200 so that rainwater can be introduced and discharged.

The flooring material manufactured according to this may be installed as shown in FIG. 2 , and when it rains, rainwater flows into the hollow body 200 and then heavy metals, pollutants, etc. are adsorbed and removed through the first mixture to clean water Since the water is discharged underground, it has the advantage of preventing environmental pollution.

[ Experimental example ] Wear rate measurement

The wear rates of the flooring material (Example 1), PS BALL (Comparative Example 1), aggregate (Comparative Example 2), and steelmaking slag (Comparative Example 3) using walnut shell chips according to the present invention were measured. The test method for wear rate was based on SPS-F KTS-1102-1890: 2020.

division Wear rate (%) Example (walnut shell chips) 7 Comparative Example 1 (PS BALL) 33 Comparative Example 2 (aggregate) 30 Comparative Example 3 (steelmaking slag) 23

As a result of measuring the wear rate for Example 1 and Comparative Examples 1 to 3, it was confirmed that the Example using the walnut shell chip had a wear rate of 7%, whereas Comparative Examples 1 to 3 had a remarkably high wear rate of 23 to 33. .

That is, it can be seen that the embodiment using the walnut shell chip significantly improved abrasion resistance.

As described above, the flooring material using the walnut shell chip according to the present invention has excellent abrasion resistance and bonding strength through the walnut shell chip, and is eco-friendly. It is a technique that made

[Example 2]

Next, a flooring material using a walnut shell chip and a photoluminescent pigment according to Example 2 of the present invention and a manufacturing method thereof will be described.

Example 2 is the walnut shell chip preparation step of Example 1 (S10), the first coating agent production step (S20), the first coating step (S30), the second coating agent production step (S40), the second coating step (S50) , a drying step (S60), and a step (S80) of adding and mixing cork chips after the drying step (S60) or the first mixture addition step (S70) proceeds may be further included.

More specifically, in the cork chip addition and mixing step (S80), after the drying step (S60) is completed, the cork chips may be added and mixed to the walnut shell chip mixture dried through the drying step (S60).

While the cork chip has excellent elasticity, there is a limitation in that it is gradually peeled off after construction, and the walnut shell chip has very excellent durability and bonding strength, but there is a limitation that the elasticity is somewhat insufficient.

Embodiment 2 according to the present invention is characterized in that it is possible to utilize the advantages of the elasticity of the cork chip and the bonding strength and durability of the cork chip and the walnut shell chip by mixing the cork chip and the walnut shell chip as a flooring material for construction. have.

And it is preferable that the walnut shell chip mixture dried through the drying step (S60): cork chips are mixed in a weight ratio of 3:7 to 7:3.

The production of the flooring material can be finished through the step (S80) of adding and mixing cork chips to the walnut shell chips, and the manufactured flooring material is laid and used for walking trails, bicycle paths, playgrounds, etc. to provide elasticity, water permeability, All of them have excellent durability.

In addition, the cork chip is added to a ocher mixture consisting of 100 parts by weight of water, 15 to 25 parts by weight of loess, 0.005 to 0.015 parts by weight of sea salt and 0.001 to 0.01 parts by weight of a surfactant, and at a temperature of 40 to 50° C. for 2 to 3 hours. It may be composed of cork chips dried for 4 to 5 hours at a temperature of 60 to 80° C. after being immersed in water.

If the temperature of the loess mixture is less than 40 ℃, each component constituting the loess mixture is not evenly mixed, so that a homogeneous loess mixture cannot be prepared. When the temperature of the loess mixture exceeds 50° C., it is undesirable to proceed with the process of raising the temperature even in a state in which each component constituting the loess mixture is evenly mixed, and when the water immersion time exceeds 3 hours, the cork Even after the loess mixture is sufficiently absorbed, the water immersion process is performed, which is undesirable in terms of the efficiency of the manufacturing process.

At this time, the loess mixture consists of 100 parts by weight of water, 15 to 25 parts by weight of loess, 0.005 to 0.015 parts by weight of sea salt, and 0.001 to 0.01 parts by weight of a surfactant, wherein the loess emits far infrared rays and imparts a flame retardant effect to the cork, The sea salt imparts antibacterial properties to the cork, and the surfactant is uniformly mixed with the water, loess and sea salt to prepare a homogeneous ocher mixture, and serves to allow the loess component to be well absorbed into the cork. It is preferably made of less sulfate (SLES, Sodium Laureth Sulfate).

The right of the present invention is not limited to the above-described embodiments, but is defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. it is self-evident

Claims (7)

Preparing a walnut shell chip (S10);
A first coating agent is prepared by adding and mixing a phosphorescent pigment to a binder mixture or a primer in which a binder and a thinner are mixed, but the weight ratio of the binder mixture or primer used to prepare the first coating agent: the phosphorescent pigment is 100: 5 to 10 step (S20);
A first coating step (S30) of adding 5 to 10 parts by weight of the first coating agent to 100 parts by weight of the walnut shell chips and stirring;
A second coating agent is prepared by adding and mixing a UV coating agent and a fixing agent to the binder mixture or primer in which the binder and thinner are mixed, but the binder mixture or primer used to prepare the second coating agent: UV coating agent: fixing agent weight ratio is 100: 5 to 10: a step of 5 to 10 (S40);
A second coating step (S50) of adding 4 to 6 parts by weight of the second coating agent to 100 parts by weight of the walnut shell chip mixture obtained through the first coating step (S30) and stirring;
A drying step of drying the walnut shell chip mixture obtained through the second coating step (S60); and
Adding and mixing a first mixture containing 20 to 50% by weight of biochar, 20 to 50% by weight of calcium carbonate, and 30 to 60% by weight of clay mineral powder containing allophane to the dried walnut shell chip mixture (S70); further comprising,
In the step of mixing by adding the first mixture (S70),
After mixing 5 to 10 parts by weight of a binder with 100 parts by weight of the first mixture, the first mixture in which the binder is mixed is mixed with the walnut shell chips while accommodating the inside of the hollow body,
The hollow body is a method of manufacturing a flooring material using a walnut shell chip and a photoluminescent pigment, characterized in that a plurality of through holes are formed on the surface.
According to claim 1,
Preparing the walnut shell chips (S10),
pulverizing the walnut shells (S11);
Selecting 2 to 4 mm of walnut shell chips from the pulverized walnut shell chips (S12);
After washing the selected walnut shell chips, drying at room temperature for 18 to 30 hours (S13);
According to claim 1,
The first coating step (S30),
The walnut shell chips and the first coating agent are stirred for 60 to 80 minutes at a rotation speed of 60 to 90 RPM per minute,
The second coating step (S50),
A method of manufacturing a flooring material using walnut shell chips and a photoluminescent pigment, characterized in that the mixture of walnut shell chips obtained through the first coating step (S30) and the second coating agent are stirred at a rotation speed of 60 to 90 RPM for 30 to 40 minutes.
According to claim 1,
The drying step (S60),
A method of manufacturing a flooring material using walnut shell chips and a photoluminescent pigment, characterized in that the walnut shell chip mixture after the second coating step (S50) is dried at 200 to 250° C. for 5 to 10 minutes.
According to claim 1,
The method for manufacturing a flooring material using a walnut shell chip and a phosphorescent pigment, characterized in that the clay mineral powder is a volcanic stone cluster powder containing allophane.
According to claim 1,
After the drying step (S60),
Further comprising; adding cork chips to the dried walnut shell chip mixture and mixing;
In the step of adding and mixing the cork chips,
Dry walnut shell chip mixture: A method of manufacturing a flooring material using walnut shell chips and a phosphorescent pigment, characterized in that the cork chips are mixed in a weight ratio of 3:7 to 7:3.
A flooring material using walnut shell chips and a phosphorescent pigment, characterized in that manufactured according to any one of claims 1 to 6.

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