KR102301908B1 - Flame retardant composition for expanded polystyrene and manufacturing method for the same - Google Patents
Flame retardant composition for expanded polystyrene and manufacturing method for the same Download PDFInfo
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- KR102301908B1 KR102301908B1 KR1020200139956A KR20200139956A KR102301908B1 KR 102301908 B1 KR102301908 B1 KR 102301908B1 KR 1020200139956 A KR1020200139956 A KR 1020200139956A KR 20200139956 A KR20200139956 A KR 20200139956A KR 102301908 B1 KR102301908 B1 KR 102301908B1
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- flame retardant
- hydroxide powder
- expanded polystyrene
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- 239000003063 flame retardant Substances 0.000 title 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 title claims abstract description 98
- 239000000203 mixture Substances 0.000 title claims abstract description 88
- 239000004794 expanded polystyrene Substances 0.000 title claims description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000012796 inorganic flame retardant Substances 0.000 claims abstract description 53
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 45
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 45
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 38
- 229920005989 resin Polymers 0.000 claims abstract description 37
- 239000011347 resin Substances 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 36
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 32
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000001913 cellulose Substances 0.000 claims abstract description 30
- 229920002678 cellulose Polymers 0.000 claims abstract description 30
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 25
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 claims description 35
- 239000011230 binding agent Substances 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 25
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- 239000011247 coating layer Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000000454 talc Substances 0.000 claims description 10
- 229910052623 talc Inorganic materials 0.000 claims description 10
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 9
- 239000011118 polyvinyl acetate Substances 0.000 claims description 9
- 239000011812 mixed powder Substances 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract description 7
- 239000004793 Polystyrene Substances 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 4
- 229920002223 polystyrene Polymers 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 229920006248 expandable polystyrene Polymers 0.000 abstract 5
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 238000000465 moulding Methods 0.000 description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229940024548 aluminum oxide Drugs 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- LXIZRZRTWSDLKK-UHFFFAOYSA-N 1,3-dibromo-5-[2-[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]propan-2-yl]-2-(2,3-dibromopropoxy)benzene Chemical compound C=1C(Br)=C(OCC(Br)CBr)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(OCC(Br)CBr)C(Br)=C1 LXIZRZRTWSDLKK-UHFFFAOYSA-N 0.000 description 1
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 125000002353 D-glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
- C08J9/009—Use of pretreated compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/016—Flame-proofing or flame-retarding additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C08L31/04—Homopolymers or copolymers of vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
본 발명은 발포 폴리스티렌용 난연성 조성물 및 그 제조방법에 관한 것이다.The present invention relates to a flame retardant composition for expanded polystyrene and a method for producing the same.
발포 폴리스티렌(Expanded Polystyrene)은 가공성이 우수하고 무게가 가벼워 단열재, 마감재, 건축용 내외장재 등으로 광범위하게 사용되고 있다. 그러나 발포 폴리스티렌은 불에 타기 쉬운 가연성을 가지고 있어서, 이에 대해 난연성을 부여하고자 하는 연구가 진행되고 있다. 구체적으로 건축 내외장재 분야에 사용되는 발포 폴리스티렌 성형품은 KS 규격에 따라, 소형 화염에 의한 수평 연소성 측정시험 요건을 포함한 요구조건을 만족해야 하는 등 일정 수준 이상의 난연성을 갖추어야 한다.Expanded polystyrene is widely used for insulation, finishing materials, interior and exterior materials for construction, etc. because of its excellent processability and light weight. However, since expanded polystyrene has a combustibility that is easily flammable, research to impart flame retardancy is being conducted. Specifically, expanded polystyrene molded products used in the field of building interior and exterior materials must have a certain level of flame retardancy, such as satisfying the requirements including the horizontal flammability measurement test by a small flame according to the KS standard.
한편, 발포 폴리스티렌에 난연성을 부여하기 위한 방법으로는 1) 발포 폴리스티렌 중합 전 난연성을 부여하는 방법, 2) 발포 전 폴리스티렌 입자에 난연성 조성물을 코팅하는 방법, 3) 폴리스티렌 발포 후, 성형 전 발포 폴리스티렌 입자에 난연성 조성물을 코팅하는 방법, 4) 성형 후 판재 등의 일정한 형태로 재단하여 표면에서부터 난연성 조성물에 함침하거나 코팅 등으로 후처리하는 방법 등 다양한 방법들이 제시된 바 있다. On the other hand, as a method for imparting flame retardancy to expanded polystyrene, 1) a method of imparting flame retardancy before polymerization of expanded polystyrene, 2) a method of coating a flame retardant composition on polystyrene particles before foaming, 3) foaming polystyrene particles after polystyrene foaming and before molding Various methods have been proposed, such as a method of coating the flame-retardant composition, 4) cutting it into a predetermined shape such as a plate after molding, and then impregnating it with the flame-retardant composition from the surface or post-treatment with coating, etc.
한편, 발포 폴리스티렌에 적용하는 난연성 조성물은 난연성 조성물이 발포 폴리스티렌 입자 표면에 균일하게 도포되어야 할 필요성이 있고, 입자 표면에 균일한 도포가 이루어지지 않는 경우 화염이 빈틈 사이로 침입하게 되어 난연성을 효과적으로 발현하기 어려운 문제가 있다. 또한, 발포 폴리스티렌 표면에 부착된 난연제가 분진 상태로 날라가지 않도록 고착화시켜 탄화막을 형성 및 유지하는 성질이 뛰어나야 한다. 또한, 난연성이 뛰어나다하더라도 성형성이 확보되지 않으면 성형품 제조에 어려움이 있으므로, 성형성 확보 역시 매우 중요하다. On the other hand, the flame-retardant composition applied to expanded polystyrene requires that the flame-retardant composition be uniformly applied to the surface of the expanded polystyrene particles, and if uniform application is not made on the particle surface, the flame penetrates through the gaps to effectively express flame retardancy. There is a difficult problem. In addition, the properties of forming and maintaining a carbonized film by fixing the flame retardant attached to the surface of the expanded polystyrene so as not to be blown away in a dust state should be excellent. In addition, even if the flame retardancy is excellent, if the moldability is not secured, it is difficult to manufacture a molded product, so it is also very important to secure the moldability.
한편, 관련 기술로 한국등록특허공보 제10-1428949호에서는 발포 폴리스티렌을 코팅하는 난연성 조성물에 열경화성 수지를 다량 첨가하는 내용이 개시되어 있고, 해당 기술에 따르면 난연제와 발포 폴리스티렌 간 부착력이 향상되어 난연성이 향상되나, 코팅된 발포 폴리스티렌 입자 간 부착력은 떨어져 성형에 어려움이 있다. 또한, 한국등록특허공보 제10-1729384호의 경우 난연제 이탈 방지를 위해 탄화막을 강화시키는 붕산염이 결합된 가교 폴리비닐아세테이트 바인더를 사용하는 내용이 개시되어 있으나, 해당 기술의 경우 난연제로서 사용할 수 있는 것으로 개시된 물질인 적인(Red Phorphoruous) 등의 성분이 밀폐공간에서 폭발 위험이 있는 포스핀(PH3) 가스를 방출하는 한편, 물과 접촉 시 독성이 강한 문제가 있으며, 또 다른 물질인 산화안티몬 등은 독성 물질로 분류되어 사용이 제한적인 문제가 있다. 또한, 해당 기술에 따른 조성물을 고온 연소 시 Char 형성 능력이 없는 스티렌계 수지에 적용하는 경우, 탄화막 고정은 효과는 있을 수 있으나, 충분한 난연 특성을 부여하기 어려운 문제가 있다.On the other hand, as a related technology, Korean Patent Publication No. 10-1428949 discloses the addition of a large amount of a thermosetting resin to a flame retardant composition for coating expanded polystyrene. Although improved, the adhesion between the coated expanded polystyrene particles is low, making molding difficult. In addition, Korea Patent Publication No. 10-1729384 discloses the use of a cross-linked polyvinyl acetate binder bonded with borate to strengthen the carbonized film to prevent the release of the flame retardant, but in the case of this technology, it is disclosed that it can be used as a flame retardant. While components such as red phosphorous emit phosphine (PH 3 ) gas, which has a risk of explosion in a confined space, there is a problem of strong toxicity when in contact with water, and other substances such as antimony oxide are toxic It is classified as a substance and has limited use. In addition, when the composition according to the technology is applied to a styrene-based resin having no ability to form Char during high-temperature combustion, the fixing of the carbonized film may be effective, but there is a problem in that it is difficult to impart sufficient flame-retardant properties.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해, 본 발명은 발포 폴리스티렌에 충분한 난연 특성을 제공하면서도 기존 수산화알루미늄 및 수산화마그네슘 난연제의 과다 사용으로 인한 발포 폴리스티렌의 물성 저하를 효과적으로 방지하는 동시에, Char를 형성할 수 있는 셀룰로오스와 난연 특성을 보강하기 위한 멜라민계 수지를 상기 무기계 난연제인 수산화알루미늄 및 수산화마그네슘 분말 입자 표면 상에 코팅함으로써, 난연 특성을 보다 강화하는 한편, 해당 조성물이 적용되는 발포 폴리스티렌의 물성 저하를 방지할 수 있고, 발포 폴리스티렌 입자 표면에 Char와 무기계 난연제를 효과적으로 고정함으로써, 난연 특성이 장시간 계속적으로 유지될 수 있도록 하는, 발포 폴리스티렌용 난연성 조성물 및 그 제조방법을 제공하고자 한다.In order to solve the problems of the prior art as described above, the present invention provides sufficient flame retardant properties to expanded polystyrene while effectively preventing deterioration of properties of expanded polystyrene due to excessive use of existing aluminum and magnesium hydroxide flame retardants, By coating cellulose capable of forming Char and a melamine-based resin for reinforcing flame retardant properties on the surface of the inorganic flame retardant aluminum hydroxide and magnesium hydroxide powder particles, the flame retardant properties are further strengthened, while expanded polystyrene to which the composition is applied An object of the present invention is to provide a flame retardant composition for expanded polystyrene and a method for producing the same, which can prevent deterioration of the physical properties of the expanded polystyrene particles and effectively fix Char and inorganic flame retardants on the surface of expanded polystyrene particles so that the flame retardant properties can be continuously maintained for a long time.
또한, 본 발명이 해결하고자 하는 기술적 과제는 이상에서 언급한 기술적 과제로 제한되지 않으며, 언급되지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다. In addition, the technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood
본 명세서에서는 무기난연제; 물; 및 난연보조제; 를 포함하는 발포 폴리스티렌용 난연성 조성물을 제공한다.In the present specification, inorganic flame retardants; water; and flame retardant aids; It provides a flame retardant composition for expanded polystyrene comprising a.
또한, 본 명세서에서, 상기 조성물은 무기난연제 25 내지 45 중량부, 물 20 내지 40 중량부, 난연보조제 15 내지 35 중량부를 포함하는, 발포 폴리스티렌용 난연성 조성물을 제공한다. In addition, in the present specification, the composition provides a flame retardant composition for expanded polystyrene comprising 25 to 45 parts by weight of an inorganic flame retardant, 20 to 40 parts by weight of water, and 15 to 35 parts by weight of a flame retardant auxiliary agent.
또한, 본 명세서에서, 상기 무기난연제는 바인더 조성물 및 상기 바인더 조성물 내에 분산된 수산화알루미늄 분말 및 수산화마그네슘 분말을 포함하되, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 각각은, 셀룰로오스 및 멜라민계 수지를 포함하는 0.25 내지 0.4 ㎛ 범위 두께의 코팅층으로 코팅된 것인, 발포 폴리스티렌용 난연성 조성물을 제공한다.In addition, in the present specification, the inorganic flame retardant includes a binder composition and aluminum hydroxide powder and magnesium hydroxide powder dispersed in the binder composition, wherein each of the aluminum hydroxide powder and magnesium hydroxide powder includes cellulose and a melamine-based resin 0.25 To provide a flame retardant composition for expanded polystyrene, which is coated with a coating layer having a thickness in the range of 0.4 μm.
본 명세서에서는 무기난연제 및 물을 3 내지 7분간 교반하여 교반 용액을 제조하고, 상기 교반 용액에 전체 용액 중량% 중 0.01 내지 2중량%가 디도록 알칼리 촉매를 첨가하여 교반한 후, 상기 교반 용액에 난연보조제를 첨가하여 3 내지 7분간 교반하는 단계를 포함하는, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In the present specification, a stirred solution is prepared by stirring an inorganic flame retardant and water for 3 to 7 minutes, and an alkali catalyst is added to the stirred solution so that 0.01 to 2% by weight of the total solution weight is added to the stirring solution, and then added to the stirred solution It provides a method for preparing a flame retardant composition for expanded polystyrene, comprising the step of adding a flame retardant auxiliary and stirring for 3 to 7 minutes.
또한, 본 명세서에서, 상기 무기난연제는, a) 셀룰로오스 및 멜라민계 수지 혼합분말 100 중량부와 메탄올 용매 80 내지 90 중량부를 혼합하여 코팅액을 제조하는 단계; b) 수산화알루미늄 분말 및 수산화마그네슘 분말을 각각 준비하고, 상기 a 단계에서 준비된 코팅액 내에 함침시켜, 수산화알루미늄 분말 및 수산화마그네슘 분말에 각각 코팅하는 단계; c) 탈크, 그라파이트 분말을 폴리비닐아세테이트에 분산시켜 바인더 조성물을 제조하는 단계; d) 상기 b 단계에서 얻은 수산화알루미늄 분말 및 수산화마그네슘 분말을 상기 c 단계에서 준비된 바인더 조성물 내에 분산시키고 교반하는 단계; 를 통해 제조된 것인, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, the inorganic flame retardant, a) preparing a coating solution by mixing 100 parts by weight of cellulose and melamine-based resin mixed powder and 80 to 90 parts by weight of a methanol solvent; b) preparing aluminum hydroxide powder and magnesium hydroxide powder, respectively, impregnated in the coating solution prepared in step a, and coating the aluminum hydroxide powder and magnesium hydroxide powder respectively; c) dispersing talc and graphite powder in polyvinyl acetate to prepare a binder composition; d) dispersing and stirring the aluminum hydroxide powder and magnesium hydroxide powder obtained in step b in the binder composition prepared in step c; It provides a method for producing a flame-retardant composition for expanded polystyrene that is manufactured through.
또한, 본 명세서에서, 상기 a 단계에서 셀룰로오스 및 멜라민계 수지 혼합분말은 셀룰로오스 100 중량부를 기준으로 멜라민계 수지 10 내지 15 중량부로 혼합된 것인, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, in step a, the mixed powder of cellulose and melamine-based resin is mixed with 10 to 15 parts by weight of melamine-based resin based on 100 parts by weight of cellulose, providing a method for producing a flame retardant composition for expanded polystyrene.
또한, 본 명세서에서, 상기 b 단계에서 상기 수산화알루미늄 분말 및 수산화마그네슘 분말의 입자는 0.5 내지 0.7 ㎛ 범위의 입도, 비표면적은 1 내지 2 m2/g 범위 내인 것인, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, in the step b, the particles of the aluminum hydroxide powder and the magnesium hydroxide powder have a particle size in the range of 0.5 to 0.7 μm, and the specific surface area is in the range of 1 to 2 m 2 /g, flame retardant composition for expanded polystyrene production provide a way
또한, 본 명세서에서, 상기 b 단계에서, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 표면에 형성된 셀룰로오스 및 멜라민계 수지 코팅층은 0.25 내지 0.4 ㎛ 범위의 두께를 가지는, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, in the step b, the cellulose and melamine-based resin coating layer formed on the surface of the aluminum hydroxide powder and magnesium hydroxide powder has a thickness in the range of 0.25 to 0.4 μm, It provides a method for producing a flame retardant composition for expanded polystyrene.
또한, 본 명세서에서, 상기 c 단계에서, 바인더 조성물은 무기난연제 전체 중량을 기준으로, 폴리비닐아세테이트 70 내지 80 중량%, 탈크 5 내지 7 중량%, 그라파이트 4 내지 8 중량% 및 잔량 메탄올을 포함하는, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, in step c, the binder composition contains 70 to 80% by weight of polyvinyl acetate, 5 to 7% by weight of talc, 4 to 8% by weight of graphite, and the remaining amount of methanol, based on the total weight of the inorganic flame retardant , to provide a method for producing a flame retardant composition for expanded polystyrene.
또한, 본 명세서에서, 상기 d 단계에서, 교반 과정은 70 내지 85 ℃ 온도 범위에서 2,000 내지 3,000 rpm의 속도로 교반기 내에서 수행되는 것인, 발포 폴리스티렌용 난연성 조성물 제조방법을 제공한다.In addition, in the present specification, in the step d, the stirring process is performed in a stirrer at a speed of 2,000 to 3,000 rpm in a temperature range of 70 to 85 ℃, it provides a method for producing a flame retardant composition for expanded polystyrene.
본 발명에 따른 방법으로 제조된 발포 폴리스티렌용 난연성 조성물은 난연성 조성물이 발포 폴리스티렌 입자 표면에 균일 도포되는 동시에, 발포 폴리스티렌 입자 표면에 효과적으로 고정되어 탄화막을 형성 및 유지시킴으로써, 해당 조성물이 적용되는 발포 폴리스티렌의 난연 특성이 장시간 계속적으로 유지될 수 있다.The flame-retardant composition for expanded polystyrene produced by the method according to the present invention is uniformly applied to the surface of expanded polystyrene particles, and at the same time is effectively fixed to the surface of expanded polystyrene particles to form and maintain a carbonized film, thereby reducing the amount of expanded polystyrene to which the composition is applied. Flame retardant properties can be continuously maintained for a long time.
또한, 본 발명에 따른 발포 폴리스티렌용 난연성 조성물은 무기난연제로서 바인더에 분산된 수산화알루미늄 및 수산화마그네슘을 주재로 하되, 상기 난연제 표면에 코팅된 멜라민계 수지를 이용하여 난연 특성을 보강함으로써, 수산화알루미늄 및 수산화마그네슘 과다 사용에 따른 발포 폴리스티렌의 기계적 물성 저하를 효과적으로 방지하는 한편, Char 형성이 용이한 셀룰로오스를 상기 난연제 표면에 코팅함으로써, 화염이 번지는 것을 효과적으로 방지할 수 있다.In addition, the flame retardant composition for expanded polystyrene according to the present invention mainly contains aluminum hydroxide and magnesium hydroxide dispersed in a binder as an inorganic flame retardant, but by reinforcing flame retardant properties using a melamine-based resin coated on the surface of the flame retardant, aluminum hydroxide and While effectively preventing the deterioration of mechanical properties of expanded polystyrene due to excessive use of magnesium hydroxide, by coating cellulose, which is easy to form Char, on the surface of the flame retardant, it is possible to effectively prevent the flame from spreading.
또한, 본 발명에 따른 발포 폴리스티렌용 난연성 조성물은 종래 기술과 같이 환경유해성 논란이 있는 할로겐계 난연제 또는 가스 발생 또는 독성, 폭발 위험이 있는 인계 난연제를 사용하지 않음으로써, 친환경 및 인체 독성 우려가 최소화된다.In addition, the flame-retardant composition for expanded polystyrene according to the present invention does not use a halogen-based flame retardant or a gas-generating or toxic or explosive phosphorus-based flame retardant, which is controversial as in the prior art, which is environmentally harmful, thereby minimizing environmental and human toxicity concerns. .
이하, 첨부된 도면을 참조하여 본 발명의 실시예들을 상세하게 설명하면 다음과 같다. 다만, 본 기재를 설명함에 있어서, 이미 공지된 기능 혹은 구성에 대한 설명은, 본 기재의 요지를 명료하게 하기 위하여 생략하기로 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present description, descriptions of already known functions or configurations will be omitted in order to clarify the gist of the present description.
이하, 본 발명의 일실시예에 따른 발포 폴리스티렌용 난연성 조성물 및 그 제조방법을 보다 상세히 설명한다.Hereinafter, a flame-retardant composition for expanded polystyrene and a method for manufacturing the same according to an embodiment of the present invention will be described in more detail.
본 발명의 일실시예에 따른 발포 폴리스티렌용 난연성 조성물은 무기난연제; 물; 및 난연보조제; 를 포함하는 것일 수 있고, 본 발명의 또 다른 일실시예에 따른 발포 폴리스티렌용 난연성 조성물은 무기난연제 25 내지 45 중량부, 물 20 내지 40 중량부, 난연보조제 15 내지 35 중량부를 포함하는 것일 수 있다. The flame retardant composition for expanded polystyrene according to an embodiment of the present invention includes an inorganic flame retardant; water; and flame retardant aids; The flame retardant composition for expanded polystyrene according to another embodiment of the present invention may include 25 to 45 parts by weight of an inorganic flame retardant, 20 to 40 parts by weight of water, and 15 to 35 parts by weight of a flame retardant aid. .
한편, 본 발명의 일실시예에 따른 무기난연제는 무기계 물질을 포함하는 난연제를 의미하는 것일 수 있고 구체적으로 바인더 등을 더 포함하는 것일 수 있다. 한편, 난연보조제는 당해 기술분야에서 일반적으로 사용되는 것일 수 있다. On the other hand, the inorganic flame retardant according to an embodiment of the present invention may mean a flame retardant containing an inorganic material, specifically, may further include a binder. On the other hand, the flame retardant auxiliary agent may be one generally used in the art.
구체적으로, 상기 무기난연제는 바인더 조성물 및 상기 바인더 조성물 내에 분산된 수산화알루미늄 분말 및 수산화마그네슘 분말을 포함하되, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 각각은, 셀룰로오스 및 멜라민계 수지를 포함하는 0.25 내지 0.4 ㎛ 범위 두께의 코팅층으로 코팅된 것일 수 있다. Specifically, the inorganic flame retardant includes a binder composition and aluminum hydroxide powder and magnesium hydroxide powder dispersed in the binder composition, wherein each of the aluminum hydroxide powder and magnesium hydroxide powder is 0.25 to 0.4 μm including cellulose and melamine-based resin It may be coated with a coating layer of a range thickness.
한편, 본 발명의 일실시예에 따른 발포 폴리스티렌용 난연성 조성물 제조방법은, 무기난연제 및 물을 3 내지 7분간 교반하여 교반 용액을 제조하고, 상기 교반 용액에 전체 용액 중량% 중 0.01 내지 2중량%가 되도록 알칼리 촉매를 첨가하여 교반한 후, 상기 교반 용액에 난연보조제를 첨가하여 3 내지 7분간 교반하는 단계를 포함하는 것일 수 있다. On the other hand, in the method for producing a flame retardant composition for expanded polystyrene according to an embodiment of the present invention, a stirring solution is prepared by stirring an inorganic flame retardant and water for 3 to 7 minutes, and 0.01 to 2% by weight of the total solution weight in the stirring solution. After stirring by adding an alkali catalyst so as to be, it may include the step of adding a flame retardant auxiliary to the stirring solution and stirring for 3 to 7 minutes.
구체적으로, 상기 무기난연제는, a) 셀룰로오스 및 멜라민계 수지 혼합분말 100 중량부와 메탄올 용매 80 내지 90 중량부를 혼합하여 코팅액을 제조하는 단계; b) 수산화알루미늄 분말 및 수산화마그네슘 분말을 각각 준비하고, 상기 a 단계에서 준비된 코팅액 내에 함침시켜, 수산화알루미늄 분말 및 수산화마그네슘 분말에 각각 코팅하는 단계; c) 탈크, 그라파이트 분말을 폴리비닐아세테이트에 분산시켜 바인더 조성물을 제조하는 단계; d) 상기 b 단계에서 얻은 수산화알루미늄 분말 및 수산화마그네슘 분말을 상기 c 단계에서 준비된 바인더 조성물 내에 분산시키고 교반하는 단계; 를 통해 제조된 것일 수 있다. Specifically, the inorganic flame retardant, a) preparing a coating solution by mixing 100 parts by weight of a cellulose and melamine-based resin mixed powder and 80 to 90 parts by weight of a methanol solvent; b) preparing aluminum hydroxide powder and magnesium hydroxide powder, respectively, impregnated in the coating solution prepared in step a, and coating the aluminum hydroxide powder and magnesium hydroxide powder respectively; c) dispersing talc and graphite powder in polyvinyl acetate to prepare a binder composition; d) dispersing and stirring the aluminum hydroxide powder and magnesium hydroxide powder obtained in step b in the binder composition prepared in step c; It may be manufactured through
먼저, 셀룰로오스 및 멜라민계 수지 혼합분말 100 중량부와 메탄올 용매 80 내지 90 중량부를 혼합하여 코팅액을 제조한다(단계 a).First, 100 parts by weight of a cellulose and melamine-based resin mixed powder and 80 to 90 parts by weight of a methanol solvent are mixed to prepare a coating solution (step a).
상기 단계는 후술할 무기계 난연제로서 수산화알루미늄 분말 및 수산화마그네슘 분말의 표면 상에 코팅되는 코팅액을 제조하는 단계로서, 구체적으로 탄화를 통해 Char를 형성할 수 있는 셀룰로오스와 난연 특성을 발현할 수 있는 멜라민계 수지를 혼합한 혼합분말을 메탄올 용매와 혼합 및 교반함으로써 수행될 수 있다. The above step is a step of preparing a coating solution to be coated on the surface of aluminum hydroxide powder and magnesium hydroxide powder as an inorganic flame retardant to be described later, specifically cellulose capable of forming Char through carbonization and melamine-based flame retardant properties that can be expressed It can be carried out by mixing and stirring the mixed powder mixed with the resin with a methanol solvent.
셀룰로오스는 수백 내지 수천개의 D-포도당 단위체들이 β(1→4) 글리코사이드 결합으로 연결된 선형 사슬이 중첩된 격자형의 다당류로서, 본 발명에서 사용되는 셀룰로오스는 열분해되어 탄화됨으로써 Char를 형성하고, 이에 의해 Char 형성 능력이 없는 스티렌계 수지, 즉 본 발명의 적용 대상인 발포 폴리스티렌에 대하여 난연 특성을 부여하게 되는 효과가 있다. Cellulose is a lattice-type polysaccharide in which hundreds to thousands of D-glucose units are superimposed with linear chains connected by β(1→4) glycosidic bonds. Cellulose used in the present invention is pyrolyzed and carbonized to form Char, and thus There is an effect of imparting flame retardant properties to a styrene-based resin having no Char-forming ability, that is, expanded polystyrene to which the present invention is applied.
한편, 멜라민계 수지는 열경화성 수지로서, 본 발명에서 무기계 난연제로 사용되는 수산화알루미늄 분말 및 수산화마그네슘 분말과의 시너지 작용을 통해 난연 특성을 보강하기 위한 역할을 수행하며, 종래 기술에 따른 할로겐계 연제 대비 독성이 적고, 무기계 난연제로서 주재로 사용되는 수산화알루미늄 및 수산화마그네슘 분말의 과다 사용을 방지하여, 발포 폴리스티렌의 기계적 물성 저하를 방지한다. 한편, 일례로, 본 발명의 멜라민계 수지는 멜라민 시아누레이트(Melamine cyanurate)일 수 있다. On the other hand, melamine-based resin is a thermosetting resin, and serves to reinforce flame retardant properties through a synergistic action with aluminum hydroxide powder and magnesium hydroxide powder used as inorganic flame retardants in the present invention, and compared to halogen-based flame retardants according to the prior art. It is less toxic and prevents excessive use of aluminum and magnesium hydroxide powders, which are mainly used as inorganic flame retardants, to prevent deterioration of mechanical properties of expanded polystyrene. On the other hand, as an example, the melamine-based resin of the present invention may be melamine cyanurate (Melamine cyanurate).
한편, 본 발명의 일실시예에 따르면, 상기 단계에서 셀룰로오스 및 멜라민계 수지 혼합분말은 셀룰로오스 100 중량부를 기준으로 멜라민계 수지 10 내지 15 중량부로 혼합된 것일 수 있으며, 멜라민계 수지가 상기 중량부 비 범위 미만인 경우 후술할 수산화알루미늄 분말 및 수산화마그네슘 분말 표면 상에 코팅이 원활히 수행되기 어려운 문제가 있고, 멜라민계 수지가 상기 중량부 비 범위 초과인 경우 Char 형성이 원활하게 이루어지기 어려워, 발포 폴리스티렌에 난연 특성을 부여하기가 어렵다. On the other hand, according to an embodiment of the present invention, in the above step, the cellulose and melamine-based resin mixed powder may be mixed in an amount of 10 to 15 parts by weight of a melamine-based resin based on 100 parts by weight of cellulose, and the melamine-based resin is used in the ratio by weight. If it is less than the range, there is a problem in that it is difficult to smoothly coat the surface of the aluminum hydroxide powder and magnesium hydroxide powder to be described later. It is difficult to assign characteristics.
다음으로, 수산화알루미늄 분말 및 수산화마그네슘 분말을 각각 준비하고, 상기 a 단계에서 준비된 코팅액 내에 함침시켜, 수산화알루미늄 분말 및 수산화마그네슘 분말에 각각 코팅한다(단계 b).Next, aluminum hydroxide powder and magnesium hydroxide powder are prepared, respectively, and impregnated in the coating solution prepared in step a, and coated on the aluminum hydroxide powder and magnesium hydroxide powder, respectively (step b).
상기 단계에서 사용되는 수산화알루미늄(Al(OH)3) 및 수산화마그네슘(Mg(OH)2)은 무기계 난연 물질로서, 난연 특성을 발현시키며 연소시 발연량이 매우 적기 때문에 환경적으로도 양호한 난연 물질이나 가연성 수지에 다량 충진하여야 목적하는 난연 특성이 달성될 수 있으며, 다량 사용하는 경우 적용되는 발포 폴리스티렌의 기계적 물성을 저하시킬 우려가 있다. Aluminum hydroxide (Al(OH) 3 ) and magnesium hydroxide (Mg(OH) 2 ) used in the above step are inorganic flame-retardant materials, express flame-retardant properties, and have very small amounts of smoke during combustion. When a large amount of the combustible resin is filled in, the desired flame retardant properties can be achieved.
이에, 본 발명에서는 상기와 같은 무기계 난연 물질을 주재로 사용하되, 상술한 멜라민계 수지를 상기 무기계 난연제 입자 표면 상에 코팅함으로써, 수산화알루미늄 및 수산화마그네슘 분말의 과다 사용을 방지하여, 발포 폴리스티렌의 기계적 물성 저하를 방지하는 한편, 상기 무기계 난연제와의 시너지 작용을 통해 난연 특성을 보강한다. Therefore, in the present invention, the inorganic flame retardant material as described above is mainly used, but by coating the above-mentioned melamine-based resin on the surface of the inorganic flame retardant particle, excessive use of aluminum hydroxide and magnesium hydroxide powder is prevented, and the mechanical of expanded polystyrene While preventing the deterioration of physical properties, the flame retardant properties are reinforced through a synergistic action with the inorganic flame retardant.
한편, 상기 단계에서 상기 수산화알루미늄 분말 및 수산화마그네슘 분말의 입자는 0.5 내지 0.7 ㎛ 범위의 입도, 비표면적은 1 내지 2 m2/g 범위 내인 것인 것일 수 있다. 한편, 수산화알루미늄 분말 및 수산화마그네슘 분말은 상기 입도 및 비표면적 범위 내인 경우, 코팅 시 적용 대상인 발포 폴리스티렌 입자 표면에 효과적으로 분산이 가능하며, 입자 표면에 균일한 도포를 통해 화염이 발포 폴리스티렌 입자 간 사이의 빈틈 사이로 침입하는 것을 효과적으로 방지할 수 있다. 한편, 상기 입도 및 비표면적 범위 미만의 경우 충분한 난연성을 발현시키기 어려운 문제가 있을 수 있으며, 상기 입도 및 비표면적 범위 초과의 경우 분말 입자 간 뭉침 발생으로 균일한 도포가 어려워질 수 있다. Meanwhile, in the above step, the particles of the aluminum hydroxide powder and the magnesium hydroxide powder may have a particle size in a range of 0.5 to 0.7 μm, and a specific surface area in a range of 1 to 2 m 2 /g. On the other hand, when the aluminum hydroxide powder and magnesium hydroxide powder are within the above particle size and specific surface area range, they can be effectively dispersed on the surface of the expanded polystyrene particles to be applied during coating, and the flame is spread between the expanded polystyrene particles through uniform application on the particle surface. It can effectively prevent intrusion through gaps. On the other hand, when the particle size and specific surface area are less than the range, there may be a problem in that it is difficult to express sufficient flame retardancy.
한편, 상기 단계에서, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 표면에 형성된 셀룰로오스 및 멜라민계 수지 코팅층은 0.25 내지 0.4 ㎛ 범위의 두께를 가지는 것일 수 있다. 코팅층이 상기 두께 범위를 가지는 경우 무기계 난연제 표면 상에 코팅된 코팅층의 셀룰로오스 성분이 먼저 열분해되면서 탄화되어 Char를 형성하고, 이후 노출되는 무기계 난연제 및 코팅층을 형성하는 멜라민계 수지가 시너지 효과를 나타내면서 우수한 난연 특성을 발현시키게 된다. Meanwhile, in the above step, the cellulose and melamine-based resin coating layers formed on the surfaces of the aluminum hydroxide powder and magnesium hydroxide powder may have a thickness in the range of 0.25 to 0.4 μm. When the coating layer has the above thickness range, the cellulose component of the coating layer coated on the surface of the inorganic flame retardant is first pyrolyzed and carbonized to form Char, and then the inorganic flame retardant and the melamine-based resin that forms the coating layer are exposed to exhibit a synergistic effect and excellent flame retardancy character is expressed.
다음으로, 탈크, 그라파이트 분말을 폴리비닐아세테이트에 분산시켜 바인더 조성물을 제조한다(단계 c).Next, talc and graphite powder are dispersed in polyvinyl acetate to prepare a binder composition (step c).
상기 바인더 조성물은 상기 난연성 조성물을 발포 폴리스티렌에 적용 시, 셀룰로오스가 탄화되어 형성된 Char 성분과 나머지 무기계 난연제 성분 및 난연성을 가진 멜라민계 수지 성분들을 발포 폴리스티렌 입자 표면에 장기간 고정시키기 위해 구비되는 구성일 수 있으며, 일례로, 탈크, 그라파이트 분말을 폴리비닐아세테이트 및 용매에 분산시켜 제조한 것일 수 있다. 한편, 상기 바인더 조성물은 상기 무기난연제 전체 중량을 기준으로 70 내지 80 중량%로 포함되는 것일 수 있으며, 바인더 조성물이 상기 중량%로 포함되는 경우 충분한 고정력을 발휘할 수 있다. 한편, 바인더 조성물이 상기 중량%를 초과하는 경우, 난연제 성분의 함량이 감소하여, 충분한 난연 특성을 발현시키기 어려우며, 바인더 조성물이 상기 중량% 미만인 경우 충분한 고정력 발휘가 어려워 난연성 조성물이 Char 와 난연성 물질을 입자 표면에 장시간 고정하기 어렵다. 한편, 탈크 및 그라파이트 분말 역시 난연 특성을 발휘하는 것으로서 바인더 내에서 상술한 무기계 난연제 입자가 위치하지 않은 곳에 분산되어 난연 특성을 보강하며, 발포 폴리스티렌 입자 표면에 빈틈없이 난연 특성을 부여하도록 하기 위해 포함되는 것일 수 있다. 한편, 상기 탈크 및 그라파이트 분말의 입도는 0.5 내지 1.2 ㎛ 범위인 것일 수 있으며, 상기 바인더 조성물 전체 중량을 기준으로 5 내지 15 중량%로 포함되는 것일 수 있다. When the flame-retardant composition is applied to the expanded polystyrene, the Char component formed by carbonizing cellulose, the remaining inorganic flame retardant component, and the melamine-based resin component having flame retardancy may be configured to be fixed to the surface of the expanded polystyrene particles for a long period of time. , for example, may be prepared by dispersing talc and graphite powder in polyvinyl acetate and a solvent. Meanwhile, the binder composition may be included in an amount of 70 to 80% by weight based on the total weight of the inorganic flame retardant, and when the binder composition is included in the weight%, sufficient fixing force may be exhibited. On the other hand, when the binder composition exceeds the above weight %, the content of the flame retardant component is reduced, so it is difficult to express sufficient flame retardant properties, and when the binder composition is less than the above weight %, it is difficult to exert sufficient fixing force It is difficult to fix on the particle surface for a long time. On the other hand, talc and graphite powder also exhibit flame-retardant properties, and are dispersed in the binder where the inorganic flame-retardant particles are not located to reinforce flame-retardant properties, and to impart flame-retardant properties seamlessly to the surface of expanded polystyrene particles. it could be Meanwhile, the particle size of the talc and graphite powder may be in the range of 0.5 to 1.2 μm, and may be included in an amount of 5 to 15% by weight based on the total weight of the binder composition.
마지막으로, 상기 b 단계에서 얻은 수산화알루미늄 분말 및 수산화마그네슘 분말을 상기 c 단계에서 준비된 바인더 조성물 내에 분산시키고 교반한다(단계 d).Finally, the aluminum hydroxide powder and magnesium hydroxide powder obtained in step b are dispersed in the binder composition prepared in step c and stirred (step d).
상기 단계는 상술한 a 내지 b 단계에서 얻어진 캡슐 형태의 무기계 난연제를 바인더 조성물 내에 균일하게 분산시키기 위한 것으로서, 구체적으로, 상기 b 단계에서 얻은 수산화알루미늄 분말 및 수산화마그네슘 분말을 상기 c 단계에서 준비된 바인더 조성물 내에 분산시키고 교반하며, 일례로 교반 과정은 70 내지 85 ℃ 온도 범위에서 2,000 내지 3,000 rpm의 속도로 교반기 내에서 수행되는 것일 수 있고, 상기 온도 및 속도 범위 내에서 캡슐화된 무기계 난연제 입자들이 효과적으로 분산이 가능하고, 상기 온도 및 속도 범위 이외에서는 무기계 난연제 입자들 간 뭉침이 발생하여 균일한 도포가 어려운 문제가 있을 수 있다. The step is for uniformly dispersing the inorganic flame retardant in the form of capsules obtained in steps a to b described above in the binder composition, specifically, the aluminum hydroxide powder and magnesium hydroxide powder obtained in step b above the binder composition prepared in step c. Dispersing and stirring within, for example, the stirring process may be carried out in a stirrer at a speed of 2,000 to 3,000 rpm in a temperature range of 70 to 85 ° C., and the inorganic flame retardant particles encapsulated within the temperature and speed range are effectively dispersed. Possible, outside the above temperature and speed range, agglomeration between inorganic flame retardant particles may occur, so that uniform application may be difficult.
이상으로 설명한 본 발명의 방법에 따라 제조된 발포 폴리스티렌용 난연성 조성물은 무기난연제, 물 및 난연보조제를 포함하되, 상기 무기난연제를 구성하는 바인더 조성물 내에, 수산화알루미늄 분말 및 수산화마그네슘 분말을 포함하되, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 각각은, 셀룰로오스 및 멜라민계 수지를 포함하는 0.25 내지 0.4 ㎛ 범위 두께의 코팅층으로 코팅된 것일 수 있으며, 이러한 구성에 의해, 난연성 조성물이 발포 폴리스티렌 입자 표면에 균일 도포되는 동시에, 발포 폴리스티렌 입자 표면에 효과적으로 고정되어 탄화막을 형성 및 유지시킴으로써, 해당 조성물이 적용되는 발포 폴리스티렌의 난연 특성이 장시간 계속적으로 유지될 수 있다.The flame-retardant composition for expanded polystyrene prepared according to the method of the present invention described above includes an inorganic flame retardant, water, and a flame retardant auxiliary agent, and includes aluminum hydroxide powder and magnesium hydroxide powder in the binder composition constituting the inorganic flame retardant, wherein the Each of the aluminum hydroxide powder and the magnesium hydroxide powder may be coated with a coating layer having a thickness in the range of 0.25 to 0.4 μm including cellulose and melamine-based resin, and by this configuration, the flame retardant composition is uniformly applied to the surface of the expanded polystyrene particles and at the same time , By effectively fixing the expanded polystyrene particles to the surface to form and maintain a carbonized film, the flame retardant properties of the expanded polystyrene to which the composition is applied can be continuously maintained for a long time.
또한, 본 발명에 따른 발포 폴리스티렌용 난연성 조성물은 무기계 난연제인 수산화알루미늄 및 수산화마그네슘을 주재로 하되, 상기 무기계 난연제 표면에 코팅된 멜라민계 수지를 이용하여 난연 특성을 보강함으로써, 수산화알루미늄 및 수산화마그네슘 과다 사용에 따른 발포 폴리스티렌의 기계적 물성 저하를 효과적으로 방지하는 한편, Char 형성이 용이한 셀룰로오스를 상기 무기계 난연제 표면에 코팅함으로써, 화염이 번지는 것을 효과적으로 방지할 수 있다. 또한, 본 발명에 따른 발포 폴리스티렌용 난연성 조성물은 종래 기술과 같이 환경유해성 논란이 있는 할로겐계 난연제 또는 가스 발생 또는 독성, 폭발 위험이 있는 인계 난연제 사용을 대체함으로써, 친환경 및 인체 독성 우려가 최소화된다. In addition, the flame-retardant composition for expanded polystyrene according to the present invention mainly contains aluminum hydroxide and magnesium hydroxide, which are inorganic flame retardants, and uses a melamine-based resin coated on the surface of the inorganic flame retardant to reinforce flame retardant properties, so that aluminum and magnesium hydroxide are excessive. While effectively preventing the deterioration of mechanical properties of expanded polystyrene due to use, by coating cellulose, which is easy to form Char, on the surface of the inorganic flame retardant, it is possible to effectively prevent the flame from spreading. In addition, the flame-retardant composition for expanded polystyrene according to the present invention replaces the use of a halogen-based flame retardant or a gaseous or toxic or explosive phosphorus-based flame retardant, which is controversial as in the prior art, which is environmentally harmful, thereby minimizing concerns about environment-friendliness and human toxicity.
발명을 하기의 실시예에서 보다 상세하게 설명한다. 단, 하기의 실시예는 본 발명을 예시하는 것일 뿐, 본 발명의 내용이 하기의 실시예에 의하여 한정되는 것은 아니다.The invention is described in more detail in the following examples. However, the following examples only illustrate the present invention, and the content of the present invention is not limited by the following examples.
[실시예] [Example]
실시예 1Example 1
목재로부터 얻어진 셀룰로오스 분말 10 kg 및 멜라민계 수지로서 멜라민 시아누레이트 1.5 kg을 반응기 내에 투입하고 25 ℃ 실온 조건에서 메탄올 용매와 함께 혼합 및 교반하여 코팅액 조성물을 제조하였다. 다음으로, 수산화알루미늄 분말 및 수산화마그네슘 분말 각 1kg을 준비하고, 상기 코팅액 조성물 내에 각각 함침시켜 수산화알루미늄 분말 및 수산화마그네슘 분말 각각에 대하여 입자 표면의 코팅층을 형성시켰다. 10 kg of cellulose powder obtained from wood and 1.5 kg of melamine cyanurate as a melamine-based resin were put into a reactor, and mixed and stirred with a methanol solvent at 25° C. room temperature to prepare a coating solution composition. Next, 1 kg of each of aluminum hydroxide powder and magnesium hydroxide powder was prepared and each impregnated in the coating solution composition to form a coating layer on the particle surface for each of the aluminum hydroxide powder and magnesium hydroxide powder.
다음으로, 탈크 0.5kg, 그라파이트 0.5kg을 각각 준비하고, 폴리비닐아세테이트 조성물 9.0 kg 내에 분산시켜 바인더 조성물을 얻은 다음, 상술한 방법으로 얻어진 코팅층 형성 수산화알루미늄 분말 및 수산화마그네슘 분말의 혼합물 2kg을 상술한 방법으로 얻어진 바인더 조성물 8kg 내에 분산시키고, 75℃ 온도 범위에서 3,000 rpm의 속도로 교반기 내에서 1시간 동안 교반을 수행하여 무기난연제를 제조하였다. Next, 0.5 kg of talc and 0.5 kg of graphite were prepared, respectively, dispersed in 9.0 kg of polyvinyl acetate composition to obtain a binder composition, and then 2 kg of a mixture of aluminum hydroxide powder and magnesium hydroxide powder for forming a coating layer obtained by the above-described method were prepared as described above. It was dispersed in 8 kg of the binder composition obtained by the method, and stirred for 1 hour in a stirrer at a speed of 3,000 rpm in a temperature range of 75° C. to prepare an inorganic flame retardant.
다음으로, 상기 방법으로 제조된 무기난연제 3 kg, 물 3 kg을 5분간 교반하여교반 용액을 제조하고, 여기에 알칼리 촉매를 교반 용액 전체 중량의 1 중량%가 되도록 첨가한 다음, 여기에 난연보조제 2kg을 첨가하여 5분간 교반하여 발포 스티렌용 난연성 조성물을 제조하였다. Next, 3 kg of the inorganic flame retardant prepared by the above method and 3 kg of water are stirred for 5 minutes to prepare a stirring solution, and an alkali catalyst is added thereto to 1% by weight of the total weight of the stirring solution, and then a flame retardant auxiliary agent is added thereto 2 kg was added and stirred for 5 minutes to prepare a flame retardant composition for expanded styrene.
다음으로, 발포 폴리스티렌을 코팅기 내에 10kg 투입하고, 상술한 바와 같이 얻어진 난연성 조성물 10kg을 투입하여 약 10분간 혼합한 다음, 이를 건조기로 이송시키고, 60℃ 온도에서 건조를 2시간 동안 수행하였다. 이후 발포 폴리스티렌을 성형기로 성형하여 성형물을 제조하였다. Next, 10 kg of expanded polystyrene was put into the coating machine, and 10 kg of the flame retardant composition obtained as described above was added and mixed for about 10 minutes, then transferred to a dryer, and dried at 60° C. for 2 hours. Thereafter, expanded polystyrene was molded with a molding machine to prepare a molded article.
비교예 1-1Comparative Example 1-1
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 제조 시 코팅액으로서, 멜라민계 수지 대신 셀룰로오스 단독으로 사용한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, except that only cellulose was used instead of melamine-based resin as a coating liquid when preparing an inorganic flame retardant.
비교예 1-2Comparative Example 1-2
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 제조 시 코팅액으로서, 셀룰로오스 대신 멜라민계 수지 단독으로 사용한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, except that only a melamine-based resin was used instead of cellulose as a coating liquid when preparing an inorganic flame retardant.
비교예 1-3Comparative Example 1-3
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 제조 시 코팅액을 이용한 코팅층 형성 과정을 거치지 아니한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, except that the coating layer formation process using a coating solution was not performed when manufacturing the inorganic flame retardant.
비교예 2-1Comparative Example 2-1
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 대신 종래 기술에 따른 할로겐계 난연제인 Tetrabromobisphenol A bis(2,3-dibromopropylether) 및 1,2,5,6,9,10-hexabromocyclododecane을 포함하는 난연제로 대체하여 코팅한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, but instead of an inorganic flame retardant, it contained Tetrabromobisphenol A bis (2,3-dibromopropylether) and 1,2,5,6,9,10-hexabromocyclododecane, which are halogen-based flame retardants according to the prior art. Only the coating was changed by replacing it with a flame retardant.
비교예 2-2Comparative Example 2-2
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 대신 종래 기술에 따른 인계 난연제인 포스파젠 및 Triphenyl phosphate를 포함하는 난연 조성물로 코팅한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, except that it was coated with a flame retardant composition containing phosphazene and triphenyl phosphate, which are phosphorus-based flame retardants according to the prior art, instead of an inorganic flame retardant.
비교예 3-1 및 3-2Comparative Examples 3-1 and 3-2
실시예 1과 동일한 방법으로 성형물을 제조하되, 무기난연제 제조 시 무기계 난연제 입도를 0.4 ㎛ 이하(비교예 3-1), 0.8 ㎛ 이상(비교예 3-2)으로 사용한 것만 달리하였다. A molded article was prepared in the same manner as in Example 1, except that the inorganic flame retardant had a particle size of 0.4 μm or less (Comparative Example 3-1) and 0.8 μm or more (Comparative Example 3-2) when preparing the inorganic flame retardant.
[실험: 발포 폴리스티렌 성형물의 물성 측정 결과][Experiment: Results of measurement of properties of expanded polystyrene moldings]
실시예와 비교예에 따른 난연성 조성물이 적용된 발포 폴리스티렌 성형물에 대하여 토치를 이용하여 연소시험을 수행하였으며, 연소에 따른 탄화막유지여부, 난연특성 발현(Char 형성 포함), 균일도포 여부, 유해성분 발생여부, 성형성 등을 측정하였다. 구체적인 결과는 다음의 표 1에 나타내었다. 한편, 해당 특성 측정 결과는 좋음: ○, 보통: △, 나쁨: X 로 나타내었다.A combustion test was performed using a torch on expanded polystyrene moldings to which the flame-retardant compositions according to Examples and Comparative Examples were applied, and whether or not the carbonized film was maintained according to combustion, flame retardant properties were expressed (including Char formation), whether uniformly applied, and harmful components were generated. Whether or not, moldability, etc. were measured. Specific results are shown in Table 1 below. On the other hand, the characteristic measurement result is shown as good: ○, normal: △, and bad: X.
상기 표 1의 결과에서 나타난 바와 같이, 본 발명의 실시예에 따라 제조한 난연성 조성물을 적용한 발포 폴리스티렌 성형물의 경우, 연소에 따른 탄화막유지여부, 난연특성 발현(Char 형성 포함), 균일도포 여부, 유해성분 발생여부, 성형성 등 모든 측면에서 양호한 결과를 나타내는 것을 확인할 수 있었다. 한편, 비교예 중 비교예 1-1 내지 1-3의 결과를 살펴보면, 셀룰로오스만 사용하는 경우 코팅층 형성이 제대로 이루어지지 않아, 무기계 분산제 간 응집 또는 뭉침으로 균일도포가 어려워지고, 멜라민계 수지만 사용하는 경우 셀룰로오스로 인한 Char 발생이 일어나지 않아 난연 특성이 떨어지는 것을 확인할 수 있다. 또한, 할로겐계 난연 조성물 또는 인계 난연 조성물 사용 시 환경오염 논란이 있는 물질 또는 가스가 발생하는 문제가 있었으며, 무기계 난연제 입자 사이즈를 특정 범위 미만 또는 초과로 포함하는 경우, 균일 도포가 어려워져 화염 침입이 발생하거나, 또는 충분한 난연 특성 부여가 어려운 점을 확인할 수 있었다. As shown in the results of Table 1, in the case of expanded polystyrene moldings to which the flame retardant composition prepared according to the embodiment of the present invention is applied, whether to maintain a carbonized film according to combustion, expression of flame retardant properties (including formation of Char), uniform application, It was confirmed that good results were obtained in all aspects such as occurrence of harmful ingredients and moldability. On the other hand, looking at the results of Comparative Examples 1-1 to 1-3 among Comparative Examples, when only cellulose is used, the coating layer is not formed properly, so that uniform application is difficult due to aggregation or agglomeration between inorganic dispersants, and only melamine-based resin is used In this case, it can be confirmed that Char does not occur due to cellulose, and the flame retardant properties are deteriorated. In addition, there was a problem that substances or gases that are controversial about environmental pollution were generated when using the halogen-based flame retardant composition or phosphorus-based flame retardant composition, and when the inorganic flame retardant particle size is less than or greater than a specific range, uniform application becomes difficult and flame intrusion occurs. occurred, or it was confirmed that it was difficult to impart sufficient flame retardant properties.
앞에서, 본 발명의 특정한 실시예가 설명되고 도시되었지만 본 발명은 기재된 실시예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명한 일이다. 따라서, 그러한 수정예 또는 변형예들은 본 발명의 기술적 사상이나 관점으로부터 개별적으로 이해되어서는 안되며, 변형된 실시예들은 본 발명의 특허청구범위에 속한다 하여야 할 것이다.In the foregoing, specific embodiments of the present invention have been described and illustrated, but it is common knowledge in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Accordingly, such modifications or variations should not be individually understood from the technical spirit or point of view of the present invention, and modified embodiments should be considered to belong to the claims of the present invention.
Claims (10)
상기 무기난연제는 바인더 조성물 및 상기 바인더 조성물 내에 분산된 수산화알루미늄 분말 및 수산화마그네슘 분말을 포함하되, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 각각은, 셀룰로오스 및 멜라민계 수지를 포함하는 0.25 내지 0.4 ㎛ 범위 두께의 코팅층으로 코팅된 것인, 발포 폴리스티렌용 난연성 조성물.
inorganic flame retardants; water; and flame retardant aids; including,
The inorganic flame retardant includes a binder composition and aluminum hydroxide powder and magnesium hydroxide powder dispersed in the binder composition, wherein each of the aluminum hydroxide powder and magnesium hydroxide powder is 0.25 to 0.4 μm thick including cellulose and melamine-based resin. A flame retardant composition for expanded polystyrene, which is coated with a coating layer.
상기 조성물은 무기난연제 25 내지 45 중량부, 물 20 내지 40 중량부, 난연보조제 15 내지 35 중량부를 포함하는, 발포 폴리스티렌용 난연성 조성물.
The method of claim 1,
The composition comprises 25 to 45 parts by weight of an inorganic flame retardant, 20 to 40 parts by weight of water, and 15 to 35 parts by weight of a flame retardant auxiliary, a flame retardant composition for expanded polystyrene.
무기난연제 및 물을 3 내지 7분간 교반하여 교반 용액을 제조하고, 상기 교반 용액에 전체 용액 중량% 중 0.01 내지 2중량%가 되도록 알칼리 촉매를 첨가하여 교반한 후, 상기 교반 용액에 난연보조제를 첨가하여 3 내지 7분간 교반하는 단계를 포함하는, 발포 폴리스티렌용 난연성 조성물 제조방법.
A method for preparing the flame-retardant composition for expanded polystyrene of claim 1, comprising:
A stirring solution is prepared by stirring the inorganic flame retardant and water for 3 to 7 minutes, and an alkali catalyst is added to the stirring solution to be 0.01 to 2% by weight of the total solution weight%, followed by stirring, and then adding a flame retardant auxiliary to the stirring solution A method for producing a flame-retardant composition for expanded polystyrene, comprising the step of stirring for 3 to 7 minutes.
상기 무기난연제는,
a) 셀룰로오스 및 멜라민계 수지 혼합분말 100 중량부와 메탄올 용매 80 내지 90 중량부를 혼합하여 코팅액을 제조하는 단계; b) 수산화알루미늄 분말 및 수산화마그네슘 분말을 각각 준비하고, 상기 a 단계에서 준비된 코팅액 내에 함침시켜, 수산화알루미늄 분말 및 수산화마그네슘 분말에 각각 코팅하는 단계; c) 탈크, 그라파이트 분말을 폴리비닐아세테이트에 분산시켜 바인더 조성물을 제조하는 단계; d) 상기 b 단계에서 얻은 수산화알루미늄 분말 및 수산화마그네슘 분말을 상기 c 단계에서 준비된 바인더 조성물 내에 분산시키고 교반하는 단계; 를 통해 제조된 것인, 발포 폴리스티렌용 난연성 조성물 제조방법.
5. The method of claim 4,
The inorganic flame retardant,
a) preparing a coating solution by mixing 100 parts by weight of a cellulose and melamine-based resin mixed powder and 80 to 90 parts by weight of a methanol solvent; b) preparing aluminum hydroxide powder and magnesium hydroxide powder, respectively, impregnating it in the coating solution prepared in step a, and coating the aluminum hydroxide powder and magnesium hydroxide powder respectively; c) dispersing talc and graphite powder in polyvinyl acetate to prepare a binder composition; d) dispersing and stirring the aluminum hydroxide powder and magnesium hydroxide powder obtained in step b in the binder composition prepared in step c; A method for producing a flame-retardant composition for expanded polystyrene that is manufactured through.
상기 a 단계에서 셀룰로오스 및 멜라민계 수지 혼합분말은 셀룰로오스 100 중량부를 기준으로 멜라민계 수지 10 내지 15 중량부로 혼합된 것인, 발포 폴리스티렌용 난연성 조성물 제조방법.
6. The method of claim 5,
In step a, the mixed powder of cellulose and melamine-based resin is mixed in an amount of 10 to 15 parts by weight of melamine-based resin based on 100 parts by weight of cellulose, a method for producing a flame retardant composition for expanded polystyrene.
상기 b 단계에서 상기 수산화알루미늄 분말 및 수산화마그네슘 분말의 입자는 0.5 내지 0.7 ㎛ 범위의 입도, 비표면적은 1 내지 2 m2/g 범위 내인 것인, 발포 폴리스티렌용 난연성 조성물 제조방법.
6. The method of claim 5,
In step b, the particles of the aluminum hydroxide powder and the magnesium hydroxide powder have a particle size in the range of 0.5 to 0.7 μm, and a specific surface area in the range of 1 to 2 m 2 /g, a method for producing a flame retardant composition for expanded polystyrene.
상기 b 단계에서, 상기 수산화알루미늄 분말 및 수산화마그네슘 분말 표면에 형성된 셀룰로오스 및 멜라민계 수지 코팅층은 0.25 내지 0.4 ㎛ 범위의 두께를 가지는, 발포 폴리스티렌용 난연성 조성물 제조방법.
6. The method of claim 5,
In step b, the cellulose and melamine-based resin coating layer formed on the surface of the aluminum hydroxide powder and the magnesium hydroxide powder has a thickness in the range of 0.25 to 0.4 μm, the flame retardant composition manufacturing method for expanded polystyrene.
상기 c 단계에서, 바인더 조성물은 무기난연제 전체 중량을 기준으로, 폴리비닐아세테이트 70 내지 80 중량%, 탈크 5 내지 7 중량%, 그라파이트 4 내지 8 중량% 및 잔량 메탄올을 포함하는, 발포 폴리스티렌용 난연성 조성물 제조방법.
6. The method of claim 5,
In step c, the binder composition is based on the total weight of the inorganic flame retardant, polyvinyl acetate 70 to 80% by weight, talc 5 to 7% by weight, graphite 4 to 8% by weight, and the remaining amount of methanol, the flame retardant composition for expanded polystyrene comprising manufacturing method.
상기 d 단계에서, 교반 과정은 70 내지 85 ℃ 온도 범위에서 2,000 내지 3,000 rpm의 속도로 교반기 내에서 수행되는 것인, 발포 폴리스티렌용 난연성 조성물 제조방법.6. The method of claim 5,
In step d, the stirring process is performed in a stirrer at a speed of 2,000 to 3,000 rpm in a temperature range of 70 to 85 ℃, the flame retardant composition manufacturing method for expanded polystyrene.
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