KR102015630B1 - Method of constructing an environment-friendly artificial turf playground using corncobs - Google Patents

Abstract

The present invention uses environmentally friendly and excellent shock absorption capacity using raw material chips made of corn in place of artificial grass filling material, which is mainly composed of conventional chemicals, and eco-friendly artificial grass using corn grass which shows temperature stability according to the use of artificial grass. It relates to the construction method of playground.

Description

Method of constructing an environment-friendly artificial turf playground using corncobs}

The present invention relates to a method for forming an environmentally friendly artificial turf playground, and in detail, using environmentally friendly raw material chips made of corn in place of artificial grass filling material, which is mainly composed of conventional chemicals, it is environmentally friendly and maintains excellent shock absorption, and uses artificial turf. It relates to a method for the creation of an environmentally friendly artificial turf playground using corn cobs showing temperature stability according to.

Artificial turf has the advantage of maintaining the same color at all times regardless of the environmental conditions such as the season and climate, and relatively easy to construct and manage. It is mainly installed in sports fields or areas where it is difficult to grow natural grass.

Playground composition using artificial turf is generally made of synthetic resin such as polyvinylidene chloride (PVC), polyethylene (PE), and polypropylene (PP) on top of ground such as ready-mixed concrete or rubble , It is filled between the grass to support the turf and to act as a buffer against external force, by using silica sand to fix the artificial turf not to move.

At this time, in order to impart a predetermined elasticity to the artificial turf playground, the filling material is laid on the upper part of the silica sand so that the artificial turf is buried in the filling material, and as the material of the filling material, thermoplastic synthetic rubber is used, and styrene-butadiene-rubber ( Styrene Butadiene Rubber (SBR), Styrene-Butadiene-Styrene Block Copolymer, Styrene-Ethylene-Butadiene-Styrene Block Copolymer, Ethylene Propylene Diene Monomer (EPDM) Urethane chips, thermoplastic olefin synthetic rubbers, etc. are mentioned.

These materials are basically petrochemicals based on fossil fuels. Controversy is caused by volatile organic compounds (VOCs), polynuclear aromatic hydrocarbons (PAH), and heavy metals. It is very high and it is difficult to recycle, causing environmental problems.

In addition, when the rubber chip is used as a filler, the surface is lightly corroded by ultraviolet rays and the powder is scattered around and blown around, and it is inhaled by the bronchus of infants and children, which impairs the health.If the user slips on artificial turf, the filler and the skin are rubbed. There was a problem that the surface temperature of artificial turf rapidly rises on burns or hot summer days.

In addition, in the dry state, static electricity is generated in the artificial turf, causing inconvenience, amplifying the risk of fire, etc. Paraffin-based oil is used in the filling material for a long time as paraffin-based oil is used for the softness of the filler. Oil is discharged to the outside and deadly to the human body and the environment and does not decompose for more than 100 years in the landfill state, causing long-term environmental pollution in the soil.

Therefore, there is an urgent need to develop environmentally friendly materials, for example, artificial turf fillers that can be decomposed naturally even when buried in the ground, and have sufficient strength when used in artificial turf.

Patent Registration No. 10-1676277 (2016.11.09)

The present invention was created in order to solve the above problems, an object of the present invention is a natural material, using a porous structure of the corn cob with excellent elastic restoring force due to the absorption and air layer structure as a filler for artificial turf playground environment-friendly It is to provide a method for the creation of an environmentally friendly artificial turf playground using corn cobs that can maintain a beneficial effect and excellent shock absorption ability to the human body.

The present invention for the above object is a first step of installing artificial grass (pile); A second step of forming an elastic layer by filling a filling chip between the artificial grass; In the method for forming an artificial turf playground comprising a, 20 to 40 parts by weight of urethane resin and 5 to 10 parts by weight of clay based on 100 parts by weight of the raw material chip prepared by grinding and drying the corncob Features.

At this time, the calcium carbonate may further include 10 to 15 parts by weight based on 100 parts by weight of the raw material chip.

In addition, 5 to 10 parts by weight of the pigment may be further included with respect to 100 parts by weight of the raw material chip.

In addition, the present invention comprises a first step of installing artificial grass (pile); A second step of forming an elastic layer by filling a filling chip between the artificial grass; A method of forming an artificial turf playground comprising a, wherein the filling chip in the second step, the step of cutting and grinding the corncob to make a raw material chip; Coating a raw material chip by mixing and stirring a urethane resin and clay on the raw material chip; Drying and separating the coated raw chip; It may be characterized in that it is provided through.

At this time, the step of coating the raw material chip (S 220), the raw material chip into a stirrer to generate a friction heat of 20 ~ 30 ℃ to evaporate a small amount of water, and the urethane resin with respect to 100 parts by weight of the raw material chip Mixing and stirring 20 to 40 parts by weight, and mixing and stirring 5 to 10 parts by weight of clay with respect to 100 parts by weight of the raw material chip.

Further, after the coating of the raw material chip, mixing 5 to 10 parts by weight of the pigment with respect to 100 parts by weight of the raw material chip; It may further include.

In addition, mixing 10 to 15 parts by weight of calcium carbonate with respect to 100 parts by weight of the raw material chip; It may further include.

The present invention utilizes the corncobs, which were used for a limited purpose, as the main material of artificial grass filling material, thereby ensuring the new use of corncobs, thereby increasing the farm household's income, and using environmentally friendly materials that can be obtained from nature. Can be reduced.

In particular, raw material chips made of corn cobs have a fine air layer as regular as artificially made foamed synthetic resins and nonwoven fabrics, so they can serve as excellent fillers due to their excellent elasticity and resilience.

In addition, it has a very large surface area and shows a significant absorption ability to replace activated carbon, and when used together with clay, it has a beneficial effect on the environment and human body such as adsorption removal of impurity ions and bad gases by anti-ion exchange and antibacterial action. Can be.

In addition, it is installed as a stable cohesion phenomenon to help the support of artificial turf, as well as less loss in rainy weather.

1 is a flow chart showing the composition of the environmentally friendly artificial grass playground using corn cobs according to an embodiment of the present invention,
2 is a cross-sectional view of the artificial turf playground according to an embodiment of the present invention,
Figure 3 is a flow chart showing the composition of the environmentally friendly artificial grass playground using corn cobs according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the composition method of the environmentally friendly artificial grass playground using the corncob of the present invention.

1 is a flow chart showing a method for forming an environmentally friendly artificial turf playground using corn cobs according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the artificial turf playground according to an embodiment of the present invention, in the present invention basically artificial grass ( An artificial turf playground is formed through a first step S100 of installing piles and a second step S200 of filling an elastic chip to form an elastic layer between the artificial grass.

The artificial turf playground is basically a grass (100) composed of synthetic resin such as polyvinylidene chloride (PVC), polyethylene (PE), polypropylene (PP) on the ground (300), such as ready-mixed concrete or rubble , Filled between the grass to support the grass and to fill the filler 200 to perform a buffer against external forces to fix the artificial turf not to move.

At this time, using the corncob (corncob) as the main material of the artificial turf filler is a feature of the present invention. Corn cob means corn cobs, which are used for some limited purposes, such as mushroom banners and animal feed, but are known to have certain medicinal effects, such as oriental medicines, such as Okmi-axes (玉米 軸). It is also used as a material for.

This corn cob is a material that is easy to be discarded after eating and separating grains or an eco-friendly material that can be obtained in nature, and has an elasticity and excellent resilience due to the formation of an air layer due to a porous structure, and a material having high moisture content and adsorption power.

Of course, various materials such as wood chips or cork materials have been examined as similar eco-friendly materials, but the corncobs used in the present invention will be published in academic papers reviewed for the purpose of adsorption treatment of wastewater or removal of Cu (II) from aqueous solutions. Not only is the material with excellent adsorption power, but also as an artificial turf filler, it has the advantage of greatly reducing the possibility of injury and burns when the fall occurs due to the low frictional property and moisture function as well as the ability to block radiant heat.

Figure 3 is a flow chart showing the composition of the environmentally friendly artificial grass playground using corn cobs according to an embodiment of the present invention.

First, in the first step (S 210) to cut and crush the corncob to make a raw material chip. Dried corncobs can be obtained from farmers. Corn is usually stored dry for sowing the next year and can be purchased from breeding companies or agricultural corporations. In recent years, only corn kernels with separated kernels can be easily obtained through corn sheller threshing apparatus.

As a detailed embodiment for cutting and pulverizing corncob, using a press cutter, the corncob is finely cut by 2-3 cm, and the pulverized corncob is put into the grinder and adjusted and lengthened by three times while adjusting the length of the blade. The process is repeated.

At this time, the primary grinding and classification is 5 ~ 6㎜, the primary grinding and classification is 3 ~ 4㎜, the third grinding and classification is to crush and classify so as to have a size of less than 2㎜ to make a raw material chip of even particles. .

At this time, put the raw material chips classified to the size of 2mm or less in a circular frame and rotate them clockwise and counterclockwise for about 10 ~ 20 minutes and shape them so that the edges of the raw material chips are rounded by centrifugal force and mutual frictional force. This is done.

In the next second step (S 220), the urethane resin and clay are mixed and stirred on the raw material chip made through the first step (S 210) to coat the raw material chip.

It adds white clay to the raw material chips made of corn, which is a natural material with excellent absorption, elasticity and resilience properties, and improves the adsorption rate, anion generation, antibacterial and constant temperature and chargeability. To coat. It is easy to realize various colors reflecting the artificial turf installation environment because it is coated with white color of white clay.

Specifically, the step of coating the raw material chip (S 220) may be carried out in the following procedure.

First, by inserting the raw material chip in the stirrer to generate a friction heat of 20 ~ 30 ℃ to evaporate a small amount of water (S 221), if the raw material chip put into the stirrer is rotated at a speed of 60 rpm for about 10 minutes, Heat generated by friction between chips is generated at 20 ~ 30 ℃. That is, by rotating in the stirrer to generate heat of 20 ~ 30 ℃ level through this to increase the coating power of the urethane resin described later while evaporating the small amount of moisture contained in the raw material chip.

Next, by mixing 20 to 40 parts by weight of the urethane resin with respect to 100 parts by weight of the raw material chip (S 222), stir well for 2 to 3 minutes through electric stirring so that the raw material chip and the urethane resin do not aggregate.

After mixing 5 to 10 parts by weight of 100 parts by weight of the raw material chip is mixed by stirring at a speed of 120 to 180 rpm in a step (S 223).

After coating the raw material chip (S 220), the color may be given through the step of mixing 5 to 10 parts by weight of a pigment of a desired color with respect to 100 parts by weight of the raw material chip (S 224), and after adding the pigment, 60 rpm Rotate and mix for about 3 to 5 minutes at a rate of to ensure that the pigment is adsorbed homogeneously.

The urethane resin mixed in the coating and pigment mixing process is hardened by about 10% to become viscous. At this time, if necessary, by mixing 10 to 15 parts by weight of calcium carbonate with respect to 100 parts by weight of the raw material chip (S 225) to further reduce the bonding strength of the weakened mixture and increase the specific gravity of the raw material chip coating layer on the surface of each raw material chip particles The chip and chip can be completely separated in the formed state. In detail, after mixing calcium carbonate, the mixture is rotated and mixed at a speed of 120 to 180 rpm for about 5 to 10 minutes.

In the last step (S 230) is to dry and separate the coated raw chip.

Specifically, the raw material coated with the coating is spread out wide and long on the floor to be naturally dried and cured for 12 to 14 hours, and during this process, 3 ~ at 60 rpm in a stirrer for complete separation of the raw material chips that may still be attached to each other. Can rotate for 5 minutes.

Preferably curing and drying can be made over a second, specifically curing about 12 hours in the summer, about 24 hours in the winter in a natural state, dried, and then dried through a dryer at a temperature of 60 ~ 80 ℃ 100 ~ 140 Dry for 2 minutes.

After that, put the dried chips in the stirrer and stirred for 3 to 5 minutes to completely separate the raw chip grains stuck together and packed.

Eco-friendly artificial turf playground using sorghum according to the present invention is the first step (S 100) for installing artificial grass (pile) and the second filling the filling chip between the artificial grass (pile) to form an elastic layer The filling chip used in the step (S 200), but the filling chip is used in the manufacturing method described above, 20 to 40 parts by weight of urethane resin based on 100 parts by weight of the raw material chip prepared by grinding and drying the corncob in the same manner And, 5 to 10 parts by weight of clay.

In this case, 10 to 15 parts by weight of calcium carbonate may be further included with respect to 100 parts by weight of the raw material chip in order to give a desired color, and carbonic acid with respect to 100 parts by weight of the raw material chip so as to facilitate separation of the raw material chips attached to each other during manufacture. 10 to 15 parts by weight of calcium may be further included.

Since the artificial turf filler has a round shape, no dust is generated, and thus, the artificial turf filler has elasticity as an optimized filler for artificial turf and maintains a constant weight by a coating layer of urethane and whiteness, thereby minimizing loss.

In addition, it is installed as a stable cohesion phenomenon to help the support of artificial turf has the effect of preventing the loss of manpower to manage artificial turf.

The rights of the present invention are not limited to the embodiments described above, but are 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)

A first step (S 100) of installing artificial grass (pile);
A second step (S 200) of forming an elastic layer by filling a filling chip between the artificial grass; In the method for creating an artificial turf playground,
The filling chip in the second step (S 200),
Cutting and pulverizing the corncob to make a raw material chip (S 210);
Coating a raw material chip by mixing and stirring a urethane resin and clay on the raw material chip (S 220);
Drying and separating the coated raw chip (S 230); Provided, including
Coating the raw material chip (S 220),
Inserting the raw material chip into the stirrer and rotating to generate frictional heat of 20 to 30 ° C. to evaporate a small amount of water (S 221), and mixing and stirring 20 to 40 parts by weight of urethane resin with respect to 100 parts by weight of the raw material chip ( S 222), and mixing 5 to 10 parts by weight of clay with respect to 100 parts by weight of the raw material chip (S 223) for the composition of the environment-friendly artificial turf playground using a corncob.
The method of claim 1,
After coating the raw material chip (S 220),
Mixing 5 to 10 parts by weight of the pigment with respect to 100 parts by weight of the raw material chip (S 224); Composition method of an environmentally friendly artificial turf playground using a corncob characterized in that it further comprises.
The method of claim 1,
Mixing 10 to 15 parts by weight of calcium carbonate based on 100 parts by weight of the raw material chip (S 225); Composition method of an environmentally friendly artificial turf playground using a corncob characterized in that it further comprises. delete delete delete delete

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