KR20140010484A - The environmental friendly flooring for salt pan and the constructing method using the flooring - Google Patents

Abstract

The present invention relates to an environmentally friendly flooring for a salt pan and a constructing method using the flooring. According to an embodiment of the present invention, the environmentally friendly flooring comprises a surface layer (10); and a lower layer (20). The surface layer (10) includes polyvinyl chloride resin of 80-120 wt%. The lower layer (20) comprises a first middle layer (21), a second middle layer (22), and a bottom layer (23).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an environmental-

The present invention relates to an eco-friendly flooring material exclusive of a phthalate plasticizer and a heavy metal stabilizer and a method of applying the same.

Salt is widely known as a seasoning which is mainly used for seasoning function in general food which is composed of sodium chloride, and is used for various purposes such as being used as a raw material for food storage and chemical industry.

In order to produce such salt, seawater, rock salt, and water are used as the basic raw materials. Depending on the origin of the production, they are classified into types such as sun salt, rock salt, and processed salt. Traditionally, sun saliva has been widely produced. It is a salt of hexagonal crystals which is a raw and translucent hexagonal crystals formed by evaporating harmful substances together with moisture by wind and sunlight after introducing seawater into a salt reservoir. In Korea, the depth of water is not deep, It is widely produced on the west coast and the south coast.

Domestically, it is composed of reservoir, evaporation site, and deciduous ground. It opens the water gate at high tide and evaporates in the evaporation site, and it creates concentrated salt water and sends it to crystal paper to obtain salt crystals.

In the decision site before the solar eclipse, the rust generated from the infrastructure for compaction, the debris such as heat shroud debris, sand grains, insects and plants, the insoluble matter from the coastal tidal flats and the tidal flats of the reservoir, In order to prevent it from being mixed with the ground, the ground of the determined paper is covered with a bottom closure member such as a plastic front plate, a tile, and a pottery. When the sea water supplied to the upper side of the bottom covering member of the salt is evaporated by the solar heat and the wind and the salt crystal is precipitated, the surface of the bottom covering member is scratched by the use of the rubber floor, The precipitation of the salt can be made uniform, and the friction with the rubber ladle can be minimized, so that the flour can be smoothly smoothed.

Tile and Ingot used as flooring are excellent in flatness but they are easily broken due to low impact resistance and abrasion resistance at high price, and it takes a considerable time and labor to replace broken tiles. Currently, PVC (poly vinyl chloride) Salt floors made of the same synthetic resin are used. PVC flooring materials have been widely used in life because they are cheap and have excellent chemical resistance. However, PVC-based flooring for floors has a large amount of plasticizer (mainly phthalate compound) added to improve stretchability and adhesiveness. They are considered to be substances that disturb the endocrine system or damage the genital organs. . Therefore, in most countries of Europe and Korea, the Food Sanitation Act and container packaging prohibit the use of DOP (Dioctyl phthalate), a phthalate plasticizer, 2-ethylhexyl phthalate (DEHP).

In addition, the KFDA and the Ministry of Agriculture, Forestry, and Fisheries and Food and Drug Administration have determined that the total content of phthalate plasticizer in PVC flooring is lower than that of DEHP (Di -2-ethylhexyl phthalate (DEHP), dibutyl phthalate (DBP) and benzyl butyl phthalate (BBP) should be 0.1% or less.

Therefore, it is required to exclude phthalate plasticizers or to contain trace amounts of plasticizers in the production of PVC floor coverings.

An object of the present invention is to provide an eco-friendly flooring material exclusive of a phthalate plasticizer and a heavy metal heat stabilizer while having excellent physical properties by using a polyvinyl chloride resin.

It is another object of the present invention to provide a method for constructing the above-mentioned eco-friendly salt flooring material on a salt floor.

In order to attain the above object, the present invention provides a laminate comprising a label layer 10 made of 80 to 120 parts by weight of a polyvinyl chloride resin, 20 to 30 parts by weight of a nonphthalate plasticizer, and 3 to 5 parts by weight of an additive; (1) composed of 80 to 120 parts by weight of a polyvinyl chloride resin, 30 to 50 parts by weight of a nonphthalate plasticizer, 80 to 120 parts by weight of calcium carbonate, and a lower layer (20) Lt; / RTI >

In addition, the present invention provides a method for manufacturing a semiconductor device, comprising the steps of: (S1) removing a foreign substance from a naturally dried salt floor and then planarizing the salt floor so that there is no projected site; Cutting the nonwoven fabric according to the size of the trough floor and placing it on top of the trough floor (S2); Installing a plywood on the nonwoven fabric (S3); (S4) cutting an edge of the salt-exclusively floated material so as to have a margin larger than the length of the top and bottom of the salt-pervious bottom and the width of the bottom of the salt-pervious floor; (S5) of pushing the marginal clearance of the salt-only floor material into the clearance in the marginal wall to make clearance between the salt-only floor material and the marginal wall; A step (S6) of arranging the edges of the bottom of the torsion floor by filling soil with the edge of the bottom of the torsion floor and pressing it; (S7) of inspecting the surface of the salt-only floor material.

The eco-friendly flooring material of the present invention does not contain a phthalate plasticizer which disturbs the endocrine system by using a nonphthalate plasticizer as a plasticizer of a polyvinyl chloride resin and contains heavy metals such as cadmium, lead and hexavalent chromium as a stabilizer And it has the effect of blocking the harmfulness problem of the PVC flooring material which is the subject of controversy.

In addition, the eco-friendly salt flooring of the present invention has a total of four-layer structure including a cover layer and a lower layer, more specifically, a cover layer, a first stop layer, a second stop layer and a lower layer. The surface durability and slipperiness are excellent, and the ground adhesion is also excellent.

In addition, carbon black is used as other additives to be added in the production of the labeling layer, which is excellent in black luster and further enhances the production quality of the salt.

Further, the eco-friendly salt flooring material of the present invention is excellent in surface durability, abrasion resistance, tensile strength, tear strength and cold resistance, so that it can produce high quality solar salt for a long time.

In addition, the method of constructing an environmentally friendly salt floor material of the present invention is effective in preventing moisture and foreign matter from entering the bottom of the salt floor and the salt side wall because there is no gap between the floor of the salt floor and the floor of the salt side, Can be produced.

1 is a perspective view of an eco-friendly salt floor material of the present invention.
2 is a cross-sectional view of an eco-friendly salt floor material of the present invention.

More particularly, the present invention relates to a cover layer 10 made of 80 to 120 parts by weight of a polyvinyl chloride resin, 20 to 30 parts by weight of a nonphthalate plasticizer, and 3 to 5 parts by weight of other additives; (1) composed of 80 to 120 parts by weight of a polyvinyl chloride resin, 30 to 50 parts by weight of a nonphthalate plasticizer, 80 to 120 parts by weight of calcium carbonate, and a lower layer (20) .

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an environmentally friendly salt flooring material according to the present invention, and FIG. 2 is a cross-sectional view of the environmentally-friendly salt flooring material 1 of the present invention, which comprises a label layer 10 composed of a vinyl chloride resin composition comprising a non- And a lower layer 20.

The lower layer 20 preferably has a three-layer structure including a first stop layer 21, a second stop layer 22, and a ground layer 23.

In the present invention, the label layer 10 is made of a resin composition consisting of 80 to 120 parts by weight of a polyvinyl chloride resin, 20 to 30 parts by weight of a nonphthalate plasticizer and 3 to 5 parts by weight of an additive, (20) composed of 80 to 120 parts by weight of a polyvinyl chloride resin, 30 to 50 parts by weight of a nonphthalate plasticizer, 80 to 120 parts by weight of calcium carbonate, a second barrier layer (22) And 1 to 3 parts by weight of an additive.

A poly vinyl chloride resin is a homopolymer of a vinyl chloride monomer or an interpolymer containing 50% or more of vinyl chloride. The polyvinyl chloride resin is used as a plasticizer, a stabilizer, a filler, And various additives such as pigments can be suitably added to impart various processing properties.

In order to improve the processability and flexibility of polyvinyl chloride resin, a plasticizer which is essentially added is used. In the past, di-2-ethylhexyl phthalate (DEHP), di-butyl phthalate DBP), di-isodecyl phthalate (DIDP), butyl benzyl phthalate (BBP), di-isononyl phthalate (DINP), di- -n-octyl phthalate, DNOP) have been widely used. However, the flooring material for eco-friendly salt of the present invention is characterized in that the above phthalate plasticizer is excluded.

Preferably, the non-phthalate plasticizer comprises at least one of a citric acid ester or an acetyl citric acid ester, wherein the ester is selected from the group consisting of a citric acid molecule and a combination of 3-ethylhexanol, propyl alcohol, butyl alcohol, hexyl alcohol, It is preferable to use one composed of an alcohol molecule.

Calcium carbonate improves the productivity and dryness of polyvinyl chloride resin and is used as a filler for economy.

Other additives include plasticizers and additives excluding calcium carbonate, and include stabilizers, lubricants and the like.

The stabilizer is added in order to prevent the change of various physical properties caused by the cleavage and bridging of the main chain due to the separation of HCl from the polyvinyl chloride and the chromophore to form a polyene structure. In the past, a stabilizer such as a tribasic acid, Stearic acid salts such as dibutyltin and tin compounds have been widely used. However, these metal compounds have a disadvantage that they have toxicity or pollution to human body or environment. Therefore, in the present invention, a barium-zinc-based (Ba-Zn) stabilizer such as a complex stearate of barium-zinc is used as a stabilizer.

The lubricant may be added to impart lubricity between chains of the polymer by reducing the frictional force between the particles and reducing the adhesion force during the processing of the polyvinyl chloride resin. Examples of the lubricant include fatty acid compounds such as stearic acid, fatty acid ester compounds such as butyl ester or octyl stearate , A mixture of fatty acids and alcohols such as palmityl alcohol or stearyl alcohol, fatty acid amide compounds such as stearic acid amide or oleic acid amide, and the like.

In the present invention, the label layer 10 is made of a resin composition comprising 80 to 120 parts by weight of a polyvinyl chloride resin, 20 to 30 parts by weight of a nonphthalate plasticizer, and 3 to 5 parts by weight of an additive, wherein the plasticizer content is 20 parts by weight , There is a problem that the viscosity of the resin itself is high and the workability is poor. Therefore, it is preferable to use 20 to 30 parts by weight of the plasticizer in consideration of the weight of the polyvinyl chloride resin.

Also, the thickness of the label layer 10 is preferably 0.1 mm or more in consideration of surface durability and product strength, and has a light and slim structure lower than the first stop layer, the second stop layer and the ground layer below the label layer, It is preferable that the thickness is set to 0.3 mm or less in order to increase the adhesion with the salt floor of the salt floors.

Further, it is preferable to further add a carbon black pigment as other additives in the production of the label layer 10 to further improve the black surface gloss and further improve the quality of the sun salt production.

In the present invention, the lower layer 20 composed of the first stop layer 21, the second stop layer 22, and the undercoat layer 23 comprises 80 to 120 parts by weight of a polyvinyl chloride resin, 30 to 50 parts by weight of a nonphthalate plasticizer, 50 to 30 parts by weight of calcium carbonate, and 1 to 3 parts by weight of other additives. The lower layer is also produced by non-foaming molding.

Unlike the label layer 10, the first stop layer 21, the second stop layer 22, and the undercoat layer 23 are made of a resin composition that further comprises 80 to 120 parts by weight of calcium carbonate . The lower layer 20 composed of the first stop layer 21, the second stop layer 22 and the foundation layer 23 further comprising calcium carbonate ensures the overall flexibility of the bottom of the salt-only flooring, And has an effect of facilitating the pre-tinning process because of its soft nature.

It is preferable that the plasticizer content in the resin composition for producing the lower layer 20 composed of the first stop layer 21, the second stop layer 22 and the ground layer 23 is 30 to 50 parts by weight of the nonphthalate plasticizer Do. When the amount is less than 30 parts by weight, the viscosity of the resin itself is high and the workability is poor. Therefore, it is preferable to use the plasticizer in an amount of 30 to 50 parts by weight in consideration of the weight of the polyvinyl chloride resin and the calcium carbonate.

The thicknesses of the first stop layer 21 and the second stop layer 22 are preferably 0.2 to 0.4 mm and the thickness of the base layer 23 is preferably 0.3 to 0.5 mm. The present invention has the effect of increasing the adhesion to the bottom of the salt floors by allowing the surface layer (10) to be thicker downward as it goes down to the foundation layer (23), thereby lowering the load.

The eco-friendly salt flooring (1) of the present invention having the above-described structure does not contain a phthalate plasticizer which disturbs the endocrine system by using a nonphthalate plasticizer as a plasticizer of a polyvinyl chloride resin, The present invention has the effect of blocking the harmfulness problem of the PVC-based flooring material which was controversial because it does not contain heavy metals such as hexavalent chromium and the like, and the bottom layer has the effect of blocking the cover layer 10 and the lower layer 20, Layer structure composed of a label layer 10, a first stop layer 21, a second stop layer 22 and a lower layer 20 composed of a base layer 23 and has a cover layer 10 and a lower layer 20) has excellent surface durability and slipperiness, and has excellent effect on the ground adhesion as well. Further, carbon black is used as an additive added in the production of the label layer 10 of the eco-friendly salt flooring material 1 of the present invention, which is excellent in black luster and further enhances the production quality of the salt. In addition, the environmentally friendly salt flooring of the present invention is excellent in surface durability, abrasion resistance, tensile strength, tear strength and cold resistance, so that it can produce high quality solar salt for a long time.

Further, the present invention relates to a method of constructing an environmentally friendly salt floor material, more specifically, a step S1 of removing a foreign substance from a naturally dried salt floor and then flattening the salt floor so that there is no projected site; Cutting the nonwoven fabric according to the size of the trough floor and placing it on top of the trough floor (S2); Installing a plywood on the nonwoven fabric (S3); (S4) cutting an edge of the salt-exclusively floated material so as to have a margin larger than the length of the top and bottom of the salt-pervious bottom and the width of the bottom of the salt-pervious floor; (S5) of pushing the marginal clearance of the salt-only bottom material into the clearance in the marginal portion of the marginal wall to make clearance between the marginal floor and the marginal wall; A step (S6) of arranging the edges of the bottom of the torsion floor by filling soil with the edge of the bottom of the torsion floor and pressing it; And a step (S7) of inspecting the surface of the salt-only flooring material applied thereto.

In the method of constructing the eco-friendly salt floor material of the present invention, first, the salt floor is naturally dried to remove moisture from the bottom of the salt floor. Thereafter, the foreign substance is removed and a step (S1) of flattening the protrusions and protrusions of the torsion floor using a roller is performed.

It is desirable to confirm that the moisture is removed from the joints of the flooring or the adhesion between the bottom of the flooring and the bottom of the salt floor, Do. In addition, when foreign matter is removed from the float floor or remains on the irregularities and protrusions, the adhesion between the float floor and the floors may be lowered, and the floor material may be damaged by the unevenness and protrusions. , A step of flattening the floor by using a roller is necessary so that there are no irregularities or protrusions.

Thereafter, the nonwoven fabric is cut in accordance with the size of the tumbling floor, and the step S2 for covering the top of the tumbling floor and the step S3 for installing the plywood on the top of the nonwoven fabric are performed.

It is preferable that the nonwoven fabric has a low coefficient of thermal expansion so as to prevent the problem of reduction in adhesion with the tumbled floor due to expansion and contraction due to high-temperature phenomenon in summer. When the nonwoven fabric is laid on the top of the trough, it is preferable that at least one side of the nonwoven fabric is overlapped in the width direction between the nonwoven fabrics so that the trough bottom is not exposed between the nonwoven fabric and the nonwoven fabric. .

Preferably, the plywood is installed so as to cross the direction of the nonwoven fabric when the plywood is installed on the upper portion of the nonwoven fabric, thereby effectively preventing the trough floor from being exposed to the outside. In other words, if the construction direction of the nonwoven fabric and the construction direction of the plywood are made perpendicular to each other, it is possible to effectively prevent the torsion floor from being exposed to the outside.

The bottom surface of the bottom material is flowed from the bottom of the bottom of the trough due to the construction of the salt only floor material directly by placing the non-woven fabric and the plywood after the installation of the salt only floor material. It is possible to solve the disadvantage that the surface of the pesticide is not smooth due to insect pests, plants and various foreign substances, and the movement of the pouring salt pans is inconvenient.

After the nonwoven fabric and the plywood are installed, the eco-friendly flooring material of the present invention is placed on the upper surface of the installed plywood and then the edge of the salt-only flooring material is cut so as to have a margin larger than the length of the top and bottom (S5) is carried out so that there is no gap between the salt-only flooring and the salt-side wall by pushing the marginal margin of the bottoms into the clearance inside the salt-side wall.

When the eco-friendly salt floors are laid on the plywood, it is preferable that the eco-friendly salt floors are overlapped at least one side in the width direction between the eco-friendly salt flooring materials. In this case, the length of the overlapped portions between the floors exclusive for salt is preferably 5 to 10 cm .

After the edge of the salt-containing flooring material is cut, it is preferable to leave the salt-only flooring material for 1 to 2 hours in order to release the wrapping stress that occurred during the packaging and prevent wrinkles caused by shrinkage.

After that, It is preferable to perform a step of applying an adhesive to the overlapping portion between the salt-only flooring and drying. The amount of adhesive applied is preferably 0.2 to 0.5 kg per m < 2 >

The reason for putting the above-mentioned salt-only flooring material on the edge is to prevent the gap between the salt-only flooring material and the salt-side wall after placing the salt-containing flooring material on the bottom of the salt- If there is a clearance between the salt floors and the side walls of the salt, the water seeps into the bottom of the salt-only floor, and the bottom of the salt becomes like an island. When the marginal margin of the salt-only floor member is pushed into the clearance in the marginal portion of the marginal wall, it is effective to prevent the clearance of the marginal marginal wall from being pushed in a "Z" shape.

After the marginal excess of the salt-only floor material is pushed into the gap in the marginal portion of the marginal wall, the edge of the marginal floor of the marginal floor is filled with soil and the edge of the marginal floor is trimmed (S6).

Filling the soil with the soil at the edge of the salt floor can block the gap between the salt floor and the salt side wall to prevent the water from penetrating to the bottom of the salt floor. It is preferable to use the nanta clay (special soil that acts as hardening cement in the water) as the soil.

Then, a step S7 of checking the surface of the salt-only floor material is performed.

Examine the surface of the salt-only flooring while pushing the surface applied with the rubber, and if a hole is formed on the surface of the salt-only flooring or if a hole is generated during use, glue the flooring material having a size larger than the above- And performing a step of repairing by bonding to the hole portion.

The above-described method of constructing an eco-friendly salt flooring according to the present invention is effective in preventing moisture and foreign matter from entering the bottom of the salt-containing floor and the salt-side wall because there is no gap between the bottom of the salt- There is an effect that can produce sun salt.

1: Eco-friendly salt flooring of the present invention
10: Cover layer
20:
21: first stop layer
22: second stop layer
23: ground floor

Claims (14)

A label layer 10 made of 80 to 120 parts by weight of a polyvinyl chloride resin, 20 to 30 parts by weight of a nonphthalate plasticizer, and 3 to 5 parts by weight of other additives;
Eco-friendly salt-based flooring material (1) consisting of a lower layer (20) made of 80 to 120 parts by weight of polyvinyl chloride resin, 30 to 50 parts by weight of a non-phthalate plasticizer, 80 to 120 parts by weight of calcium carbonate, and 1 to 3 parts by weight of other additives . The method of claim 1,
The lower layer 20 is an eco-friendly salt flooring material (1), characterized in that consisting of the first stop layer 21, the second stop layer 22, the base layer 23. The method of claim 1,
Wherein the nonphthalate plasticizer comprises at least one of a citric acid ester or an acetyl citric acid ester, wherein the ester is selected from the group consisting of three citric acid molecules and three alcohols selected from the group consisting of ethyl alcohol, propyl alcohol, butyl alcohol, hexyl alcohol, (1). ≪ / RTI > The method of claim 1,
Other additives include stabilizers and lubricants. (1). The method of claim 1,
The thickness of the cover layer 10 is 0.1 ~ 0.3 mm, Eco-friendly salt flooring, characterized in that (1). 3. The method of claim 2,
The lower layer 20 is composed of a first stop layer 21 having a thickness of 0.2 to 0.4 mm, a second stop layer 22 having a thickness of 0.2 to 0.4 mm, and a base layer 23 having a thickness of 0.3 to 0.5 mm. Eco-friendly salt flooring (1). 5. The method of claim 4,
An eco-friendly floor material (1), characterized by further adding carbon black to the resin composition for producing the label layer (10) as another additive. (S1) removing foreign matter from the naturally dried salt floor and then flattening the salt floor so that there is no protruding part;
Cutting the nonwoven fabric according to the size of the trough floor and placing it on top of the trough floor (S2);
Installing a plywood on the nonwoven fabric (S3);
(S4) cutting the edge of the salt-only flooring material so as to have a margin larger than the length of the top and bottom of the salt-pervious bottom and the length of the left and right sides thereof;
(S5) of pushing the marginal clearance of the salt-only floor material into the clearance in the marginal wall to make clearance between the salt-only floor material and the marginal wall;
A step (S6) of arranging the edges of the bottom of the torsion floor by filling soil with the edge of the bottom of the torsion floor and pressing it;
(S7) a step of inspecting the surface of the salt-only floor material. 9. The method of claim 8,
Wherein the plywood is installed so as to cross the construction direction of the nonwoven fabric in the step (S3) of installing the plywood on the nonwoven fabric. 9. The method of claim 8,
In the step S4 of cutting the edge of the salt-only flooring so as to have a margin larger than the length of the top and bottom of the salt-water floor after the salt-only floor material is applied to the upper surface of the above-described reinforcing material, Wherein the method further comprises a step of allowing the steel plate to stand on the steel plate. 9. The method of claim 8,
In the step S4 of cutting the edge of the salt-exclusively floated material so as to have a margin larger than the length of the top and bottom of the salt-pervious bottom,
Wherein when the eco-friendly salt floors are laid, at least one side of the eco-friendly floors overlaps the eco-friendly salt floors. 12. The method of claim 11,
And the overlapping area between the environmentally friendly salt floors is 5 to 10 cm. 13. The method according to claim 11 or 12,
Further comprising the step of applying an adhesive to an overlapping portion between the eco-friendly salt flooring and then drying the coated flooring. 9. The method of claim 8,
Characterized in that when the marginal tailings of the salt-only flooring are pushed into the gaps in the wall of the salt-side wall, the marginal tailings of the salt-only flooring are pushed in a "Z" shape so that there is no gap between the salt- Construction method.

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