KR102015628B1 - Environment-friendly artificial turf filler using corncobs and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an environmentally friendly artificial turf filler using a corncob, which is safe and can reduce environmental pollution by replacing artificial turf filler consisting mainly of chemicals with an environmentally friendly material using corncob, and a method of manufacturing the same.

Description

Environment-friendly artificial turf filler using corncobs and manufacturing method

The present invention relates to an eco-friendly artificial turf filler and a method for manufacturing the same, in detail, by replacing the artificial turf filler mainly made of conventional chemical products with eco-friendly materials using corn cobs, it is safe and environmentally friendly using corn cobs to reduce environmental pollution. It relates to artificial turf filler and a method of manufacturing the same.

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 indoor and outdoor areas where natural grass is difficult to grow.

The artificial turf is a grass composed of synthetic resins such as polyvinylidene chloride (PVC), polyethylene (PE), and polypropylene (PP), and is filled between the grass to support the grass and buffers external force. It consists of a filler.

At this time, the material of the filler is thermoplastic synthetic rubber, styrene-butadiene rubber (SBR), styrene-butadiene-styrene block copolymer, styrene-ethylene-butadiene-styrene Block copolymers, ethylene-propylene-diene monomers (Ethylene Propylene Diene Monomer, EPDM), polyurethane chips, thermoplastic olefin-based synthetic rubbers, and the like.

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.

Particularly, paraffinic oil is used for the purpose of softening of the filler, and the paraffinic oil contained in the filler is discharged to the outside as it is used for a long time, and it acts fatally to the human body and the environment. It acts as a cause of long-term environmental pollution within.

Therefore, there is an urgent need for the development of environmentally friendly materials, for example, artificial turf fillers that can be decomposed naturally even when they are buried in the ground, but have sufficient strength when used in artificial turf. .

Publication No. 10-2014-0088378 (2014.07.10)

The present invention was created to solve the above problems, an object of the present invention is environmentally friendly and beneficial to the human body by coating the clay on the corn cob with excellent elastic restoring force due to the absorption and air layer structure as a porous material as a natural material It is to provide an environmentally friendly artificial turf filler using a corncob that can provide an effect and a method of manufacturing the same.

Method for producing an environmentally friendly artificial grass filling material using the present invention corn cob for the above purpose is to produce a raw material chip by cutting and grinding the corn cob; 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; Characterized in that consists of.

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

Further, after the coating of the raw material chip, mixing 10 to 15 parts by weight of calcium carbonate based on 100 parts by weight of the raw material chip; It may further include.

In addition, environmentally friendly artificial grass filling material using the present invention corn cob for the above purpose is composed of 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 the corn cob It is characterized by.

In this case, 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.

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 illustrating a method for manufacturing environmentally friendly artificial grass filling material using a corncob according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the environmentally friendly artificial grass filling material and its manufacturing method using the corncob of the present invention.

In the present invention, corncob is used as a main material of artificial turf filler. 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, wood chips or cork materials have been examined as similar eco-friendly materials, but the corncobs used in the present invention have excellent adsorptive power so as to be published in academic papers examined for the purpose of adsorption treatment of waste water or removal of Cu (II) from aqueous solutions. In addition to this material, as an artificial turf filler, there is an advantage that can greatly reduce the possibility of injury and burns when the fall occurs due to the low friction characteristics and moisture function along with the ability to block radiant heat.

1 is a flow chart illustrating a method for manufacturing environmentally friendly artificial grass filling material using a corncob according to an embodiment of the present invention.

First, in the first step (S 110) 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 120), the urethane resin and clay are mixed and stirred on the raw material chip made through the first step (S 110) 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 120) may be carried out in the following procedure.

First, by inserting the raw material chip in the stirrer to generate friction heat of 20 ~ 30 ℃ to evaporate a small amount of water (S 121), 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, the mixture is stirred 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 122), and stirs well for 2 to 3 minutes through electric stirring so that the raw material chip and the urethane resin do not aggregate.

Thereafter, 5 to 10 parts by weight of the mixture of 100 parts by weight of the raw chip is mixed and stirred (S 123), followed by rotation mixing for about 3 to 4 minutes at a speed of 120 to 180 rpm.

After coating the raw material chip (S 120), the color may be imparted 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 124). 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, the step of mixing 10 to 15 parts by weight of calcium carbonate with respect to 100 parts by weight of the raw material chip (S 125) further reduces the bonding strength of the weakened mixture and increases the specific gravity of the raw material chip so that the coating layer is formed on the surface of each raw material chip particle. In the formed state, the chip and the chip can be completely separated. 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 130) it is dried and separated from the coated raw material 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 grass filling material using a corncob according to the present invention is manufactured by the above-described manufacturing method, 20 to 40 parts by weight of a urethane resin based on 100 parts by weight of the raw material chip prepared by grinding and drying the corncob in the same manner; It is composed of 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)

Cutting and pulverizing the corncob to make a raw material chip (S 110);
Coating a raw material chip by mixing and stirring a urethane resin and clay on the raw material chip (S 120);
Drying and separating the coated raw chip (S 130); Including,
Coating the raw material chip (S 120),
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 121), and mixing and stirring 20 to 40 parts by weight of urethane resin based on 100 parts by weight of the raw material chip ( S 122), and mixing and stirring 5 to 10 parts by weight of clay based on 100 parts by weight of the raw material chip (S 123).
The method of claim 1,
After coating the raw material chip (S 120),
Mixing 5 to 10 parts by weight of the pigment with respect to 100 parts by weight of the raw material chip (S 124); Method for producing an environmentally friendly artificial grass filling material 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 125); Method for producing an environmentally friendly artificial grass filling material using a corncob characterized in that it further comprises. delete delete delete delete

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