KR20170052907A - And manufacturing method thereof - Google Patents
And manufacturing method thereof Download PDFInfo
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- KR20170052907A KR20170052907A KR1020150155006A KR20150155006A KR20170052907A KR 20170052907 A KR20170052907 A KR 20170052907A KR 1020150155006 A KR1020150155006 A KR 1020150155006A KR 20150155006 A KR20150155006 A KR 20150155006A KR 20170052907 A KR20170052907 A KR 20170052907A
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- South Korea
- Prior art keywords
- beads
- flame retardant
- flame
- polystyrene foam
- foamed
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title abstract description 12
- 239000011324 bead Substances 0.000 claims abstract description 103
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003063 flame retardant Substances 0.000 claims abstract description 64
- 229920006327 polystyrene foam Polymers 0.000 claims abstract description 34
- 230000032683 aging Effects 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 15
- 239000006260 foam Substances 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 12
- 239000004793 Polystyrene Substances 0.000 claims description 11
- 229920002223 polystyrene Polymers 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000004640 Melamine resin Substances 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 7
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims description 7
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 7
- 239000010457 zeolite Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000000454 talc Substances 0.000 claims description 6
- 229910052623 talc Inorganic materials 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 239000004460 silage Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 abstract description 15
- 239000012774 insulation material Substances 0.000 abstract description 9
- 229920006248 expandable polystyrene Polymers 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 15
- 229910052787 antimony Inorganic materials 0.000 description 5
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000004079 fireproofing Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Polymers & Plastics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention relates to a quasi-incombustible thermal insulating material and a method of manufacturing the same, wherein the board-like body is formed by mixing and coating a polystyrene foam bead with a flame retardant liquid; The polystyrene foam beads are mixed with the polystyrene foam beads and the flame retardant liquid at a weight or volume ratio of 1: 2.5 to 3, and the polystyrene foam beads have a specific gravity of 0.019 to 0.021. A method of manufacturing a quasi-incombustible thermal insulating material including a step of foaming, a step of foaming, a step of aging, a step of coating a flame retardant solution, a step of primary drying and aging, a molding step and a secondary drying and aging step.
According to the present invention, it is possible to provide a quasi-incombustible thermal insulation material which is produced by mixing a flame retardant liquid with foamed polystyrene (EPS) beads and coating them on the outer surface and molding the quartz fireproof thermal insulation material. have.
Description
The present invention relates to a quasi-incombustible thermal insulating material and a method of manufacturing the quasi-incombustible thermal insulating material, and more particularly, to a quasi-incombustible thermal insulating material made by mixing a polystyrene foam bead with a flame retardant and coating the outer surface of each foam bead, .
Currently, polyurethane foam and styrofoam are used as interior and exterior insulation materials in construction sites, and they are used in sandwich panels and the like.
However, it has the disadvantage of discharging a large amount of flammable and toxic gas when a fire occurs, and it can cause a fatal problem leading to death by dyspnoea as well as being harmful to the human body. Therefore, efforts are being made to secure flame retardant performance And softening is becoming a very urgent problem.
Particularly, according to Article 61 of the Enforcement Decree of the Building Act, it is possible to use the fireproofing materials such as fireproofing materials such as fireproofing materials such as walls, ceilings, corridors and stairs such as multi-use facilities, apartment buildings, .
Here, the nonflammable material is a material which does not burn, and the semiflammable material is a material having properties similar to the nonflammable material, and the flame retardant material is a material having a performance that does not burn well.
Accordingly, expanded styrene foam (EPS) and polyurethane foam, which are often used as interior finishing materials for buildings such as multi-use facilities, are limited in their application when flame retardant performance is not ensured. (Nonflammable material and nonflammable material composite material) having the required performance.
That is, there is a demand for development of a heat insulating material having a warming property but excellent flame retardant performance.
Disclosure of Invention Technical Problem [8] The present invention has been accomplished in view of the above-mentioned problems, and it is an object of the present invention to provide a quasi-incombustible heat insulating material which is produced by mixing polystyrene foam beads with a flame retardant solution and coating them on the outer surfaces of respective foam beads, The purpose is to provide.
The present invention relates to a method for manufacturing a foamed bead, which comprises foaming a polystyrene bead as a raw material to form a foamed bead (foamed polystyrene bead), aging the foamed bead, coating the foamed bead with a flame retardant, And a method of manufacturing the same.
Disclosed is a quasi-incombustible thermal insulation material capable of realizing quasi-incombustibility in addition to thermal insulation and its manufacturing method.
In order to achieve the above object, the quasi-incombustible thermal insulating material according to the present invention comprises a board-shaped body, wherein the board-shaped body is formed by coating a polystyrene foam bead with a flame retardant liquid; The polystyrene foam beads and the polystyrene foam beads are mixed in a weight or volume ratio of 1: 2.5 to 3, and the polystyrene foam beads are foamed beads having a specific gravity of 0.019 to 0.021.
The flame retardant solution contained 30 wt% of a water-soluble adhesive copolymerized with a melamine resin in a ceramic resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, , 8% by weight of talc, and 3% by weight of antimony.
According to another aspect of the present invention, there is provided a method of manufacturing quasi-incombustible thermal insulation material, comprising the steps of: (A) inserting a polystyrene bead raw material, (B) foaming the raw material polystyrene beads to form foam beads; (C) aging the foaming beads under a condition of a humidity of 50 ± 10%; (D) mixing the flame-retardant solution with the foamed beads and coating the outer surface of the foamed beads with a flame-retardant solution; (E) drying and aging the foamed beads coated with the flame retardant solution for moisture removal; (F) molding the foamed beads coated with the flame-retardant solution through the step (E) into a block-shaped molded body; (G) drying and aging the shaped body again; (H) cutting the formed body obtained in the step (G) into a board-shaped body.
Here, in the step (C), in the winter season, it is aged at a temperature of 10 ± 10 ° C. and a humidity of 50 ± 10 ° C. for 8 hours or more. In the summer, the temperature is 30 ± 10 ° C. at a humidity of 50 ± 10% Or more.
Here, in the step (D), polystyrene foam beads having a specific gravity of 0.019 to 0.021 are used, and the polystyrene foam beads and the flame retardant liquid are mixed and coated in a weight or volume ratio of 1: 2.5 to 3; The flame retardant solution contained 30 wt% of a water-soluble adhesive copolymerized with a melamine resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, 8 wt% of calcium carbonate, By weight, and 3% by weight of antimony.
In the step (E), the foamed bead coated with the flame retardant solution is subjected to a primary drying process for 5 to 10 minutes under the (D) step, and the foamed bead coated with the primary dried flame retardant And is then subjected to a secondary drying process, followed by drying and aging for 15 to 30 minutes so as to have an air circulating condition in the silo, and the silo is provided as a sieve .
In the step (F), the foamed bead coated with the flame-retardant solution is put into a molding die to form a molded article, while the vacuum in the molding die is maintained and subjected to a primary molding process at a steam pressure of 0.5 to 0.6 Ps And the secondary molding process is performed at a steam pressure of 0.6 to 0.8 Ps in a state of maintaining the vacuum in the mold after the primary molding.
According to the present invention, it is possible to provide a quasi-incombustible thermal insulation material which is produced by mixing a polystyrene foam bead with a flame retardant liquid, coating the outer surface of each foam bead, and molding the same, .
The present invention relates to a method for manufacturing a foamed bead, which comprises foaming polystyrene beads as a raw material to foam beads, aging the foamed beads, coating the flame retardant on the foamed beads, Like base body having a low thermal conductivity.
The present invention can provide a quasi-incombustible thermal insulation material capable of enhancing durability such as impact resistance and warpability as well as thermal insulation and quasi-incombustibility.
1 is a structural view showing a quasi-incombustible thermal insulating material according to an embodiment of the present invention.
2 is a process flow diagram illustrating a method of fabricating a semi-fireproof thermal insulation material according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
As shown in FIG. 1, the quasi-incombustible thermal
At this time, the board-
In order to coat the outer surface of each of the polystyrene foam beads with a flame retardant liquid, the polystyrene foam beads and the flame retardant solution may preferably be formed in a weight or volume ratio of 1: 2.5 to 3, and then coated.
If the flame retardant is added to the polystyrene foam beads in an amount that is too low, the flame retardancy is deteriorated. If the flame retardant is added excessively, the foam beads are not fused and the beads do not stick together.
Here, it is preferable that the polystyrene foam beads use a foam bead having a specific gravity of 0.019 to 0.021.
If the specific gravity is less than 0.019, the flame retardancy may be deteriorated. If the specific gravity exceeds 0.021, fusion of the foam bead becomes difficult.
For example, when a polystyrene foam bead having a specific gravity of 0.019 is mixed with a flame retardant, the coating may be performed by mixing the polystyrene foam beads and the flame retardant solution in a weight or volume ratio of 1: 2.5.
In addition, the polystyrene foam beads having a specific gravity of 0.021 may be mixed with a flame retardant, and the coating may be carried out by mixing the polystyrene foam beads and the flame retardant in a weight or volume ratio of 1: 3.
The flame retardant solution contained 30 wt% of a water-soluble adhesive copolymerized with a melamine resin in a ceramic resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, , 8% by weight of talc, and 3% by weight of antimony.
A method of manufacturing the quasi-incendive thermal
First, the polystyrene bead raw material is put on in order to secure the heat insulating property, and a check is made as to whether or not the foreign material exists in the raw material when the raw material is worn and whether the bead maintains the original shape (S10).
At this time, in order to manufacture a quasi-incombustible thermal insulating material of excellent quality, the polystyrene bead raw material should be free from harmful materials and maintain the original shape.
The raw material, polystyrene beads, is foamed into foam beads (S20).
At this time, it is preferable to subject the raw material polystyrene beads to foaming at 63 to 66 magnification.
Here, the surface of the foamed bead is treated so as to be smooth and not distorted.
The foaming beads are aged under a condition of a humidity of 50 ± 10% (S30).
At this time, if the aging treatment is performed at a humidity of less than 40%, the hardening is performed too early, and if the humidity is increased to 60%, the hardening becomes too late.
At this time, the aging treatment of the foamed bead can be divided into the treatment in the winter season and the summer season. In the winter season, it is preferable to aged for 8 hours or more at a temperature of 10 ± 10 ° C and a humidity of 50 ± 10% It is preferable to aged at a temperature of 30 ± 10 ° C for 4 hours or more at a humidity of 50 ± 10%.
Considering the economical efficiency, it is preferable to perform aging treatment for 8 to 10 hours under the above-mentioned humidity and temperature conditions in the winter season, and aging treatment for 4 to 5 hours under the above humidity and temperature conditions during the summer season.
Here, it is preferable that the aging treatment for the foamed beads is performed in a storage tank, which is a syringe.
The flame-retardant solution is mixed with the foamed beads, and the outer surface of each foamed bead is coated with a flame-retardant solution (S40).
At this time, it is preferable to use a polystyrene foam bead having a specific gravity of 0.019 to 0.021 in order to improve the thermal insulation property against the foamed beads, and the polystyrene foam beads: flame retardant solution of 1: 2.5 to 3 It is preferable to add and mix in a volume ratio to perform coating treatment.
If the flame retardant is added to the polystyrene foam beads in an amount that is too low, the flame retardancy is deteriorated. If the flame retardant is added excessively, the foam beads are not fused and the beads do not stick together.
If the specific gravity is less than 0.019, the flame retardancy may be deteriorated. If the specific gravity exceeds 0.021, fusion of the foam bead becomes difficult.
For example, when a polystyrene foam bead having a specific gravity of 0.019 is mixed with a flame retardant, the coating may be performed by mixing the polystyrene foam beads and the flame retardant solution in a weight or volume ratio of 1: 2.5.
In addition, the polystyrene foam beads having a specific gravity of 0.021 may be mixed with a flame retardant, and the coating may be carried out by mixing the polystyrene foam beads and the flame retardant in a weight or volume ratio of 1: 3.
Here, it is preferable to use a mixing machine for the flame-retardant coating process. If it is assumed that 2.5 m 3 (cubic meter) is processed, the coating process can be completed by mixing for 4 to 5 minutes.
The flame retardant solution contained 30 wt% of a water-soluble adhesive copolymerized with a melamine resin in a ceramic resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, , 8% by weight of talc, and 3% by weight of antimony.
At this time, the ceramic resin is a resin mixed with ceramics such as silicon oxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), titanium oxide (TiO 2 ) and the like for enhancing heat resistance and strengthening the heat shielding ability.
Melamine resin is a polymer that is thermosetting (it does not become soft and does not become soft even when it is heated) and has excellent heat resistance and weather resistance, and is excellent in adhesion.
Magnesium hydroxide, expanded graphite, zeolite, calcium carbonate, talc, and antimony including aluminum hydroxide can exhibit heat and flame retardant performance. They are added at appropriate mixing ratios to ensure quasi-nonflammability. In addition, It is possible to increase the impact resistance and warpage property of the heat insulating material so as to enhance the durability.
The foamed beads coated with the flame retardant solution are dried and aged to remove moisture (S50).
It may be desirable to treat the foamed beads coated with the flame retardant liquid in a multi-stage process in order to improve the drying and aging efficiency.
For this purpose, the foamed beads coated with the flame retardant solution are subjected to a primary drying process in a mixer for 5 to 10 minutes, and then the foamed beads coated with the primary dried flame retardant are transferred to a silo The mixture is automatically dried and subjected to a secondary drying treatment. The air is circulated in the silo for 15 to 30 minutes, followed by drying and aging.
Here, when the foamed bead coated with the flame retardant solution is transferred from the mixing machine to the sidewall, a conveying screw is used. By providing the fluidity through the conveyance using the conveying screw, automatic drying can be performed.
In this case, the silos are to be provided in the form of a net so as to have an air circulating condition, and they are formed to have a mesh standard so that the foamed beads can not easily escape.
The foamed bead coated with the flame-retardant solution is molded into a block-shaped molded body such as a hexahedron (S60).
At this time, the foamed beads coated with the flame-retardant solution are put into a molding die to form a molded body, and the die is subjected to primary molding at a steam pressure of 0.5 to 0.6 Ps in a state of maintaining the vacuum in the molding die, It is preferable to carry out a secondary molding process at a steam pressure of 0.6 to 0.8 Ps while maintaining the vacuum in the mold.
In this way, by performing the molding process over the second condition under the above-described pressure conditions, it is possible to enhance the fusion bondability between the foamed beads constituting the molded article, and the compact can be firmly compacted so that the molded article can be molded with durability.
The molded body is further dried and aged again for moisture removal (S70).
In this case, it is preferable that the drying is carried out in the drying chamber for at least 8 hours, and the drying and aging treatment are carried out, preferably about 8 to 9 hours.
The formed body is cut to form a board-shaped body having a predetermined thickness (S80).
Thus, by performing the above-described steps S10 to S80 in order, it is possible to produce a quasi-incombustible heat insulating material capable of exhibiting quasi-fireproof characteristics in addition to thermal insulation performance.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be apparent that various modifications and changes may be made by those skilled in the art.
100: Semi-incombustible thermal insulation material
110: board-shaped body
Claims (7)
Wherein the board-like body is formed by coating a polystyrene foam bead with a flame-retardant liquid;
The polystyrene foam beads and the flame retardant liquid were mixed in a weight or volume ratio of 1: 2.5 to 3,
Wherein the polystyrene foam beads have a specific gravity of 0.019 to 0.021.
The flame-
30 wt% of a water soluble adhesive copolymerized with a melamine resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, 8 wt% of calcium carbonate, 8 wt% of talc, 3% by weight of the total amount of the composition.
(B) foaming the raw material polystyrene beads to form foam beads;
(C) aging the foaming beads under a condition of a humidity of 50 ± 10%;
(D) mixing the flame-retardant solution with the foamed beads and coating the outer surface of the foamed beads with a flame-retardant solution;
(E) drying and aging the foamed beads coated with the flame retardant solution for moisture removal;
(F) molding the foamed beads coated with the flame-retardant solution through the step (E) into a block-shaped molded body;
(G) drying and aging the shaped body again;
(H) cutting the formed body obtained in the step (G) into a board-shaped body; Wherein the method comprises the steps of:
In the step (C)
During the winter season, it is aged for more than 8 hours under conditions of a humidity of 50 ± 10% and a temperature of 10 ± 10 ° C,
Wherein the aging treatment is performed for 4 hours or more at a temperature of 30 ± 10 ° C and a humidity of 50 ± 10% in a summer season.
In the step (D)
A polystyrene foam bead having a specific gravity of 0.019 to 0.021 was used,
The polystyrene foam beads and the flame retardant liquid are mixed and coated in a weight or volume ratio of 1: 2.5 to 3;
The flame-
30 wt% of a water soluble adhesive copolymerized with a melamine resin, 12 wt% of aluminum hydroxide, 12 wt% of magnesium hydroxide, 17 wt% of expanded graphite, 10 wt% of zeolite, 8 wt% of calcium carbonate, 8 wt% of talc, 3% by weight of the composition.
In the step (E)
The foamed beads coated with the flame retardant solution are subjected to a primary drying treatment for 5 to 10 minutes under the condition of the step (D)
The foamed beads coated with the primary dried flame retardant liquid are transferred to a silo, which is a storage room, to be automatically dried and subjected to a secondary drying treatment,
Wherein the silage is dried and aged for 15 to 30 minutes so as to have an air circulating condition in the silo, and the silo is provided as a sieve.
In the step (F)
Molding the foamed beads coated with the flame retardant solution into a molding die to form a molding body, while maintaining the vacuum in the molding die at a steam pressure of 0.5 to 0.6 Ps,
Wherein a secondary molding process is performed at a steam pressure of 0.6 to 0.8 Ps in a state of maintaining the vacuum in the mold after the primary molding.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200486097Y1 (en) * | 2017-05-29 | 2018-04-03 | 문효군 | sandwich panel for cattle shed |
| KR20190089114A (en) * | 2018-01-20 | 2019-07-30 | 김해린 | Manufacturing method and product for Outer Wall Plastering Pannel |
| KR102024347B1 (en) * | 2019-04-02 | 2019-09-23 | 한갑호 | Method for producing flame―retardant board |
| KR102024348B1 (en) * | 2019-04-02 | 2019-09-24 | 한갑호 | Method for producing flame retardant board |
| KR20200051086A (en) * | 2018-11-02 | 2020-05-13 | 주식회사 이제이코리아 | Semi-fireproof Insulator Using Graphen Oxide and its Manufacturing Method |
| CN111763386A (en) * | 2020-07-25 | 2020-10-13 | 曹峰 | EPS flame-retardant heat-insulation wall board |
-
2015
- 2015-11-05 KR KR1020150155006A patent/KR20170052907A/en active IP Right Grant
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200486097Y1 (en) * | 2017-05-29 | 2018-04-03 | 문효군 | sandwich panel for cattle shed |
| KR20190089114A (en) * | 2018-01-20 | 2019-07-30 | 김해린 | Manufacturing method and product for Outer Wall Plastering Pannel |
| KR20200051086A (en) * | 2018-11-02 | 2020-05-13 | 주식회사 이제이코리아 | Semi-fireproof Insulator Using Graphen Oxide and its Manufacturing Method |
| KR102024347B1 (en) * | 2019-04-02 | 2019-09-23 | 한갑호 | Method for producing flame―retardant board |
| KR102024348B1 (en) * | 2019-04-02 | 2019-09-24 | 한갑호 | Method for producing flame retardant board |
| CN111763386A (en) * | 2020-07-25 | 2020-10-13 | 曹峰 | EPS flame-retardant heat-insulation wall board |
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