KR101832245B1 - Manufacturing method of environment-friendly braille paving block by terra abla - Google Patents
Manufacturing method of environment-friendly braille paving block by terra abla Download PDFInfo
- Publication number
- KR101832245B1 KR101832245B1 KR1020150160869A KR20150160869A KR101832245B1 KR 101832245 B1 KR101832245 B1 KR 101832245B1 KR 1020150160869 A KR1020150160869 A KR 1020150160869A KR 20150160869 A KR20150160869 A KR 20150160869A KR 101832245 B1 KR101832245 B1 KR 101832245B1
- Authority
- KR
- South Korea
- Prior art keywords
- braille
- press block
- manufacturing
- weight
- resin
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
- B28B11/16—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/10—Clay
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
Abstract
The present invention relates to a method of manufacturing a braille press block using clay as a main raw material, and it is an object of the present invention to provide a method of manufacturing a braille press block using a material which is harmless to the human body, To provide a high quality eco-friendly braille walkway block which is excellent in durability without development and can be recycled at the time of disposal.
In order to attain the above object, the present invention provides a method for producing a polyester resin composition, which comprises mixing white clay, a synthetic resin such as polypropylene (PP) resin or polyethylene (PE) resin harmless to the human body and a small amount of a bonding agent and a decoloring agent, And the mixed material is then extruded by using a screw extruder, followed by cooling and cutting to obtain a mixed chip. The mixed chip is melted, and then the braille press block is formed by pressure molding using a molding machine .
Description
The present invention relates to a method of manufacturing a braille press block made mainly of clay, and more particularly, to a method of manufacturing a braille press block using a material used for a braille press block as an eco-friendly material, The present invention is intended to provide an eco-friendly braille press block which is excellent in durability without being damaged or peeled off from the braille projections protruding from the upper surface of the press block, and can be recycled at the time of disposal to prevent environmental pollution.
Generally, the Braille press block is a block used for informing the position of the surrounding traffic environment such as the placement direction of the vehicle, the riding position of the subway and the railroad crossing, the position of the crossing on the sidewalk block of the road for the visually handicapped or the amblyopic person The braille press block has a structure protruding upward by the height of the braille protrusion as compared with a general press block made up of a flat surface of a certain height, so that the braille protrusion can be detected by the blind person or the blind person.
Various types of products are used for the structure of the braille press block.
For example, a product in which a joint hole is formed in the upper surface of a general press block and a bracket projection is fixed to the joint hole, and a resin cover having a braille projection formed on the upper surface of the general press block is integrally formed, Products formed by molding cement mortar in the form of a sidewalk block and painted on the upper surface are provided.
In the case of the braille sidewalk block, since it is constructed not only in an underground shopping arcade, a subway moving path, but also in a moving path of a large building, it has a drawback in that it is harmful due to the use of cement mortar and is not environmentally friendly due to difficulty in recycling.
Particularly, in the case of combining the braille protrusion through the engaging hole in the general press block in the above-described braille press block, the operation is troublesome and the braille protrusion is separated from the press block during use frequently, .
In addition, in the case of the braille sidewalk block in which the resin cover having the braille projection formed on the upper surface of the general sidewalk block is integrally formed, the resin cover with the braille projection is peeled off from the sidewalk block during use, But the function of the braille press block is lost.
There is a problem that if the upper surface is painted after forming the braille sidewalk block with the cement mortar, the painted layer is peeled off due to abrasion.
As a means for solving the above-mentioned problems, braille press blocks having various configurations have been provided, but there is a problem in solving the problems.
The present invention relates to a method of manufacturing a braille press block using clay as a main raw material, and it is an object of the present invention to provide a method of manufacturing a braille press block using a material which is harmless to the human body, Quality braille press block which is excellent in durability without being developed and can be recycled at the time of disposal.
In order to attain the above object, the present invention provides a method for producing a polyester resin composition, which comprises mixing white clay, a synthetic resin such as polypropylene (PP) resin or polyethylene (PE) resin harmless to the human body and a small amount of a bonding agent and a decoloring agent, And the mixed material is then extruded by using a screw extruder, followed by cooling and cutting to obtain a mixed chip. The mixed chip is melted, and then the braille press block is formed by pressure molding using a molding machine .
The present invention relates to a process for producing a composite material, which comprises mixing a synthetic resin such as polypropylene (PP) resin or polyethylene (PE) resin which is harmless to clay and human body and a small amount of a bonding agent, a discoloration inhibitor, a pigment and a flame- The mixed material is extruded by using a screw extruder and then cooled and cut to obtain a mixed chip. The mixed chip is melted and then molded by a molding machine to form a braille sidewalk block. Thus, Friendly eco-friendly braille press block which can provide a product which is harmless to the human body by using an eco-friendly material and which is excellent in durability without causing damage or coloring of the braille protuberant during use and can be recycled at the time of disposal And so on.
Figure 1: Manufacturing process diagram of the present invention
2 is a perspective view of the braille sidewalk block manufactured in the present invention;
3: perspective view of the braille sidewalk block manufactured in the present invention
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic view showing the manufacturing process of the braille sidewalk block 10 to be provided in the present invention, and is a material mixing process S1, a chip manufacturing process S2, and a product molding process S3.
The material mixing process (S1) is as follows.
The material used in the present invention uses an environmentally friendly material which is harmless to the human body.
That is, a mixture of white clay and synthetic resin, that is, any one of polypropylene (PP) resin and polyethylene (PE) resin and mushroom, is mixed with a small amount of a bonding agent, a discoloration inhibitor (UVA) And a flame retardant are put into a stirrer and stirred to obtain a mixed material.
At this time, it is preferable to add the wax to mix the materials evenly, and the amount of the wax is controlled according to the environment of the workplace, that is, the temperature and humidity.
Considering the functionality of each material used above, white clay, which is the main component, is silicate mineral of volcanic rock type, which is a white material. It emits far infrared ray which is beneficial for human body, Improves moldability and durability during curing.
Polypropylene (PP) resins and polyethylene (PE) resins are high-molecular-weight synthetic resins that are harmless to the human body. They improve the bonding properties of each material and inhibit moldability and water absorption.
Mushroom improves bonding force between white clay and synthetic resin, reduces the weight of the product to improve handleability, improves strength as an eco-friendly material, suppresses shrinkage, and prevents deformation of the product.
In addition, the bonding agent is to make the bonding force of the synthetic resin to be more rigid and to have moldability. The anti-fading agent is a function of preventing the discoloration of the pigment, the pigment is a function of giving a color to the product, Function.
The mixing ratios of the respective materials are as follows.
And 25 to 35% by weight of a synthetic resin such as polypropylene (PP) resin or polyethylene (PE) resin, and 15 to 25% by weight of mushroom powder together with a small amount of additives, that is, , 1 to 2 wt% of a discoloration inhibitor, 1 to 2 wt% of a pigment (yellow system), and 1 to 2 wt% of a flame retardant are put into a stirrer and sufficiently stirred to uniformly mix the materials.
In the stirring process, the wax is preferably added in an amount of 1 to 5% by weight based on 100% by weight of the mixed material in accordance with the working environment conditions, that is, the temperature and humidity, so that the materials are uniformly stirred without being biased.
In the case of clay, when the mixing ratio of clay, synthetic resin (PP, PE) and mash is not absolutely mixed, the mixing ratio of other materials, that is, synthetic resin is increased, , The moldability and impact resistance of the product are deteriorated.
In addition, if the mixing ratio of polypropylene (PP) resin or polyethylene (PE) resin is less than 25%, the cost can be reduced, but the bonding force is decreased and the moldability and impact resistance are decreased. Which is undesirable.
Mushroom is a material for improving the bonding force between white clay and synthetic resin, and it is filled with the remaining weight percent excluding white clay, synthetic resin and additives.
The chip manufacturing process (S2) is as follows.
The mixed material obtained in the material mixing step is supplied to a hopper of a screw extruder and is melt-extruded.
That is, the mixed material supplied to the hopper is melted by the extruded tube heated by the electric heater while being moved forward by the extruded screw provided on the inner surface of the extruded tube. At this time, .
The molten mixed material is extruded through a nozzle while being forwardly fed by an extruding screw. The extruded filament is cooled and then cut by a cutter to form a mixed chip.
If the mixed material is melt-extruded through the extruder and then cut by a cutter, the mixed chips are once again mixed so that the mixed materials are mixed evenly.
The product molding step (S3) is as follows.
The product molding step S3 is a process of mixing the mixed materials again by melting again the mixed chips obtained through the extruder and molding the product having a desired shape. In the present invention, the braille press block 10 The process of molding is explained.
The mixed chips are supplied to the hopper of the extruder, melted while passing through the extruding tube by the extrusion screw, and the molten mixed material is supplied to the mold mounted on the molding machine. Then, as shown in FIGS. 2 and 3, So that the braille press block 10 formed with the protrusion is press-formed.
An electric heater is installed on the outer surface of the extruder of the extruder to melt chips passing through the extruder. The heating temperature is set to be higher by 10 to 20 ° C than the melting point of the raw material resin of the mixed chip.
When the braille press block 10 is formed with the mixed material, a high quality eco-friendly braille press block having a yellow color can be formed.
That is, the material for forming the braille sidewalk block 10 of the present invention contains 35 to 45% by weight of white clay and 25 to 35% by weight of a synthetic resin made of polypropylene (PP) resin or polyethylene (PE) , 15 to 25% by weight of mushroom, 1 to 2% by weight of a bonding agent for improving bonding strength between materials as a small amount of additive, 1 to 2% by weight of a yellowish pigment for color development, 1 to 2% by weight of an inhibitor, and 1 to 2% by weight of a flame retardant agent capable of being protected from fire in the event of a fire.
In particular, according to the present invention, a blended material for forming a braille sidewalk block (10) is melted by using a green material so as to exhibit a hue of a yellowish color, so that the braille sidewalls (20) The
It is also possible to use a conventional press block instead of a braille press block by using the mixed material provided in the present invention.
(S1) - material mixing process
(S2) - chip manufacturing process
(S3) - product molding process
(10) - Braille press block
(20) - Braille projection
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150160869A KR101832245B1 (en) | 2015-11-17 | 2015-11-17 | Manufacturing method of environment-friendly braille paving block by terra abla |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150160869A KR101832245B1 (en) | 2015-11-17 | 2015-11-17 | Manufacturing method of environment-friendly braille paving block by terra abla |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20170057575A KR20170057575A (en) | 2017-05-25 |
| KR101832245B1 true KR101832245B1 (en) | 2018-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150160869A KR101832245B1 (en) | 2015-11-17 | 2015-11-17 | Manufacturing method of environment-friendly braille paving block by terra abla |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101832245B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009067665A (en) * | 2007-09-18 | 2009-04-02 | Ooguni Taketori Monogatari Corp | Molded body obtained by hardening bamboo chip with cement mortar, and method for producing the same |
| KR101385502B1 (en) * | 2013-05-30 | 2014-04-16 | 주식회사 더클레이 | Nature friendly block having halls and method to manufactur it same as |
-
2015
- 2015-11-17 KR KR1020150160869A patent/KR101832245B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009067665A (en) * | 2007-09-18 | 2009-04-02 | Ooguni Taketori Monogatari Corp | Molded body obtained by hardening bamboo chip with cement mortar, and method for producing the same |
| KR101385502B1 (en) * | 2013-05-30 | 2014-04-16 | 주식회사 더클레이 | Nature friendly block having halls and method to manufactur it same as |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170057575A (en) | 2017-05-25 |
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