NO162077B - SELF-EXTENDING EXPANDED POLYSTYRENE MATERIAL. - Google Patents
SELF-EXTENDING EXPANDED POLYSTYRENE MATERIAL. Download PDFInfo
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- NO162077B NO162077B NO800768A NO800768A NO162077B NO 162077 B NO162077 B NO 162077B NO 800768 A NO800768 A NO 800768A NO 800768 A NO800768 A NO 800768A NO 162077 B NO162077 B NO 162077B
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- polystyrene
- nitrogen
- self
- compound
- halogenated
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- 239000000463 material Substances 0.000 title claims description 16
- 239000004794 expanded polystyrene Substances 0.000 title claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 24
- -1 nitrogen-containing organic compound Chemical class 0.000 claims description 14
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 6
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 6
- 229920005990 polystyrene resin Polymers 0.000 claims description 5
- WLCFKPHMRNPAFZ-UHFFFAOYSA-M didodecyl(dimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC WLCFKPHMRNPAFZ-UHFFFAOYSA-M 0.000 claims description 3
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 claims description 3
- 239000004664 distearyldimethylammonium chloride (DHTDMAC) Substances 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 2
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 description 17
- 229920002223 polystyrene Polymers 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 11
- 230000002195 synergetic effect Effects 0.000 description 11
- 229920006327 polystyrene foam Polymers 0.000 description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004604 Blowing Agent Substances 0.000 description 5
- 150000003868 ammonium compounds Chemical class 0.000 description 5
- AUTSLLHNWAZVLE-UHFFFAOYSA-N 1,1,2,2,3-pentabromo-3-chlorocyclohexane Chemical compound ClC1(Br)CCCC(Br)(Br)C1(Br)Br AUTSLLHNWAZVLE-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 239000011324 bead Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 2
- QXSZNDIIPUOQMB-UHFFFAOYSA-N 1,1,2,2-tetrabromoethane Chemical compound BrC(Br)C(Br)Br QXSZNDIIPUOQMB-UHFFFAOYSA-N 0.000 description 1
- GGMQZPIDPNAGFP-UHFFFAOYSA-N 1,1-dibromo-1,2,2,2-tetrachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Br)Br GGMQZPIDPNAGFP-UHFFFAOYSA-N 0.000 description 1
- HGRZLIGHKHRTRE-UHFFFAOYSA-N 1,2,3,4-tetrabromobutane Chemical compound BrCC(Br)C(Br)CBr HGRZLIGHKHRTRE-UHFFFAOYSA-N 0.000 description 1
- CQJATPXNOIKBGO-UHFFFAOYSA-N 3-bromo-3,4,4,5,5,6-hexachlorocyclohexene Chemical compound ClC1C=CC(Cl)(Br)C(Cl)(Cl)C1(Cl)Cl CQJATPXNOIKBGO-UHFFFAOYSA-N 0.000 description 1
- RUHLNQWHGYWOBA-UHFFFAOYSA-N C(CCCCCCCCCCCCCCCCC)OS(=O)(=O)[O-].C(CCCCC)[NH+](C)C Chemical compound C(CCCCCCCCCCCCCCCCC)OS(=O)(=O)[O-].C(CCCCC)[NH+](C)C RUHLNQWHGYWOBA-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XCSXSYLKDIICBU-UHFFFAOYSA-M [[2,3-bis(2-methylpropyl)phenyl]-ethoxy-phenoxymethyl]-ethyl-dimethylazanium;chloride;hydrate Chemical compound O.[Cl-].C=1C=CC(CC(C)C)=C(CC(C)C)C=1C([N+](C)(C)CC)(OCC)OC1=CC=CC=C1 XCSXSYLKDIICBU-UHFFFAOYSA-M 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- DVBJBNKEBPCGSY-UHFFFAOYSA-M cetylpyridinium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 DVBJBNKEBPCGSY-UHFFFAOYSA-M 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- CAYGQBVSOZLICD-UHFFFAOYSA-N hexabromobenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1Br CAYGQBVSOZLICD-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- HKUFIYBZNQSHQS-UHFFFAOYSA-N n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCNCCCCCCCCCCCCCCCCCC HKUFIYBZNQSHQS-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002896 organic halogen compounds Chemical class 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- BNIXVQGCZULYKV-UHFFFAOYSA-N pentachloroethane Chemical compound ClC(Cl)C(Cl)(Cl)Cl BNIXVQGCZULYKV-UHFFFAOYSA-N 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- SWZDQOUHBYYPJD-UHFFFAOYSA-N tridodecylamine Chemical compound CCCCCCCCCCCCN(CCCCCCCCCCCC)CCCCCCCCCCCC SWZDQOUHBYYPJD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
-
- 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
- C08K5/00—Use of organic 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
- C08J2325/00—Characterised by the use 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; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
Den foreliggende oppfinnelse vedrører et selvslukkende ekspandert polystyrenmateriale med særlig gunstig cellestørrelse, inneholdende en polystyrenharpiks, et halogenert organisk brannhemmende middel og en nitrogenholdig organisk forbindelse, samt eventuelt antimonoksid. The present invention relates to a self-extinguishing expanded polystyrene material with a particularly favorable cell size, containing a polystyrene resin, a halogenated organic fire retardant and a nitrogen-containing organic compound, as well as possibly antimony oxide.
For mange anvendelser må det tilsettes brannhemmende midler til polystyrenharpikser, såsom polystyren, styrenakrylnitrilkopo-lymerer (SAN), akrylnitril-butadien-styrenkopolymerer (ABS-harpikser), slagfaste polystyrener og liknende, for å bibringe harpiksene brannmotstandsevne. Organiske forbindelser som inneholder brom og/eller klor anvendes ofte som brannhemmende midler. Men store mengder brannhemmende midler er ofte nødvendig for å oppnå styrenmaterialer som tilfredsstiller spesifikasjoner for flammeforplantning, og disse store mengder er ufordelaktige for andre egenskaper hos polystyrenmaterialene, såsom strekkfasthet og termisk stabilitet. For many applications, fire retardants must be added to polystyrene resins, such as polystyrene, styrene acrylonitrile copolymers (SAN), acrylonitrile-butadiene-styrene copolymers (ABS resins), impact resistant polystyrenes and the like, to impart fire resistance to the resins. Organic compounds containing bromine and/or chlorine are often used as fire retardants. However, large amounts of fire retardants are often required to obtain styrene materials that meet flame propagation specifications, and these large amounts are detrimental to other properties of the polystyrene materials, such as tensile strength and thermal stability.
For å senke mengden brannhemmende middel som må tilsettes til slike harpikser er den synergistiske virkning til noen til-setningsmidler (eller synergistiske forbindelser), som når de anvendes alene ikke virker som brannhemmende midler, blitt over-veiet. Organiske peroksider er blitt foreslått som synergistiske forbindelser, men de har atskillige ulemper, særlig når det gjelder giftighet og stabilitet. In order to lower the amount of fire retardant that must be added to such resins, the synergistic effect of some additives (or synergistic compounds), which when used alone do not act as fire retardants, has been considered. Organic peroxides have been proposed as synergistic compounds, but they have several disadvantages, particularly in terms of toxicity and stability.
Fra US-patentskrift 4.092.281 er det kjent nitrogenholdige synergistiske forbindelser for anvendelse i brannhemmende poly-styrenmaterialer. Videre er det fra GB-patentskrift 1.480.457 kjent en flammehemmende plast på basis av polystyren inneholdende antimontrioksid, et halogenert organisk flammehemmende middel og en nitrogenholdig forbindelse som kan være et amin, et amid eller en ammoniumforbindelse. From US patent 4,092,281, nitrogen-containing synergistic compounds are known for use in fire-retardant polystyrene materials. Furthermore, a flame retardant plastic based on polystyrene containing antimony trioxide, a halogenated organic flame retardant and a nitrogenous compound which can be an amine, an amide or an ammonium compound is known from GB patent document 1,480,457.
Det er et formål med den foreliggende oppfinnelse å frem-bringe et særlig tilfredsstillende brannhemmende polystyrenmateriale som eliminerer de ovennevnte ulemper og som omfatter meget aktive synergistiske forbindelser. It is an object of the present invention to produce a particularly satisfactory fire-retardant polystyrene material which eliminates the above-mentioned disadvantages and which comprises highly active synergistic compounds.
Polystyrenmaterialet ifølge oppfinnelsen kjennetegnes ved at den nitrogenholdige organiske forbindelse er valgt fra stearyl-dimetyl-benzylammoniumklorid, distearyl-dimetylammoniumklorid, dilauryl-dimetylammoniumklorid, diisobutyl-fenoksy-etoksy-etyl-dimetylbenzylammoniumklorid-monohydrat, cetylpyridinbromid, etylen-bis-stearylamid, distearylamin, trilaurylamin, heksyl-dimetyl-ammoniumstearyl-sulfat, eller en blanding av disse, hvorved den nitrogenholdige forbindelse foreligger i en mengde på 0,5-50% av det halogenerte brannhemmende middels vekt. The polystyrene material according to the invention is characterized by the fact that the nitrogen-containing organic compound is selected from stearyl-dimethyl-benzylammonium chloride, distearyl-dimethylammonium chloride, dilauryl-dimethylammonium chloride, diisobutyl-phenoxy-ethoxy-ethyl-dimethylbenzylammonium chloride monohydrate, cetylpyridine bromide, ethylene-bis-stearylamide, distearylamine, trilaurylamine , hexyl-dimethyl-ammonium-stearyl-sulphate, or a mixture of these, whereby the nitrogen-containing compound is present in an amount of 0.5-50% of the weight of the halogenated fire retardant.
Oppfinnelsen vedrører som nevnt polystyrenskumplast som kan fremstilles ved støping av ekspanderbare perler av polystyren eller ved ekstrudering av blandinger av polystyren og et esemiddel. Det har vist seg at polystyrenskumplast som er fremstilt ved ekstrudering av polystyrenplaster i nærvær av et esemiddel sammen med en nitrogenholdig forbindelse ifølge den foreliggende oppfinnelse har celler hvis gjennomsnittsstørrelse er vesentlig mindre enn polystyrenskumplast som er fremstilt uten nærvær av en slik nitrogenholdig forbindelse. F.eks. varierer cellenes stør-relse i polystyrenskumplast fremstilt i nærvær av en ammoniumforbindelse ifølge oppfinnelsen mellom 80 og 100 um, mens celle-størrelsen er ca. 200 um når det ikke anvendes noen ammoniumforbindelse. Således har polystyrenskumplastene som er fremstilt av materialene ifølge oppfinnelsen en lavere densitet og bedre selvslukkende egenskaper og er av den grunn særlig fordelaktige for mange formål. As mentioned, the invention relates to polystyrene foam plastic which can be produced by casting expandable beads of polystyrene or by extruding mixtures of polystyrene and a blowing agent. It has been shown that polystyrene foam plastic which is produced by extruding polystyrene plastic in the presence of a blowing agent together with a nitrogen-containing compound according to the present invention has cells whose average size is significantly smaller than polystyrene foam plastic which is produced without the presence of such a nitrogen-containing compound. For example the size of the cells in polystyrene foam produced in the presence of an ammonium compound according to the invention varies between 80 and 100 µm, while the cell size is approx. 200 µm when no ammonium compound is used. Thus, the polystyrene foams produced from the materials according to the invention have a lower density and better self-extinguishing properties and are therefore particularly advantageous for many purposes.
Det brannhemmende middel er en halogenert organisk forbindelse, fortrinnsvis en bromert eller klorert organisk forbindelse. Disse halogenerte forbindelser anvendes vanligvis i slike mengder at halogeninnholdet i polystyrenmaterialet er minst 0,2%. The fire retardant is a halogenated organic compound, preferably a brominated or chlorinated organic compound. These halogenated compounds are usually used in such quantities that the halogen content in the polystyrene material is at least 0.2%.
Større innhold enn 15% gir ingen fordeler. Generelt ligger halogeninnholdet i de ferdige polystyrenmateriale på 0,5-10 vekt%. Mengden er hovedsakelig avhengig av typen halogenert brannhemmende middel. Bromforbindelser er vanligvis mer aktive enn tilsvarende klorforbindelser og kan derfor anvendes i mindre mengder. Disse midler og deres anvendelse er tidligere kjent. Typiske halogenerte brannhemmende midler er acetylentetrabromid, dibromtetrakloretan, tetrakloretan, pentakloretan, heksaklor-eller heksabrombenzen, tetrabrombutan, polyhalogendifenyler, polyhalogendifenyletre, perhalogenpentacyklododekaner, pentabrommonoklorcykloheksan, faste og flytende klorerte parafiner og liknende samt blandinger av disse. A content greater than 15% does not offer any benefits. In general, the halogen content in the finished polystyrene material is 0.5-10% by weight. The quantity mainly depends on the type of halogenated fire retardant. Bromine compounds are usually more active than corresponding chlorine compounds and can therefore be used in smaller quantities. These agents and their use are previously known. Typical halogenated fire retardants are acetylene tetrabromide, dibromotetrachloroethane, tetrachloroethane, pentachloroethane, hexachloro- or hexabromobenzene, tetrabromobutane, polyhalogendiphenyls, polyhalogendiphenyl ethers, perhalogenpentacyclododecanes, pentabromomonochlorocyclohexane, solid and liquid chlorinated paraffins and the like and mixtures of these.
De nitrogenholdige organiske forbindelser ifølge oppfinnelsen er synergistiske forbindelser for de halogenerte organiske forbindelser som anvendes som brannhemmende midler for polystyrenplaster. De er meget aktive synergistiske forbindelser og anvendes som nevnt i mengder på 0,5-50% av det brannhemmende middels vekt. Mengdene varierer med typen brannhemmende middel og typen nitrogenholdig forbindelse. Vanligvis kan den synergistiske forbindelse anvendes i mengder på 0,01-5,0 vekt%, fortrinnsvis 0,02-2,0 vekt% av polystyrenplasten. The nitrogen-containing organic compounds according to the invention are synergistic compounds for the halogenated organic compounds used as fire retardants for polystyrene plastics. They are very active synergistic compounds and, as mentioned, are used in amounts of 0.5-50% of the weight of the fire retardant. The amounts vary with the type of fire retardant and the type of nitrogenous compound. Generally, the synergistic compound can be used in amounts of 0.01-5.0% by weight, preferably 0.02-2.0% by weight of the polystyrene plastic.
De nitrogenholdige organiske forbindelser ifølge oppfinnelsen kan inkorporeres i harpiksen ved nøyaktig blanding av polystyrenharpiksen, det brannhemmende middel, den nitrogenholdige forbindelse samt etter ønske og behov andre vanlige tilset-ningsmidler som fargestoffer, smøremidler og liknende. Den nitrogenholdige forbindelse kan også tilføres styrenmonomeren eller monomer- og/eller polymerblandingen før polymerisasjon. The nitrogen-containing organic compounds according to the invention can be incorporated into the resin by precisely mixing the polystyrene resin, the fire retardant, the nitrogen-containing compound and, if desired and needed, other common additives such as dyes, lubricants and the like. The nitrogen-containing compound can also be added to the styrene monomer or the monomer and/or polymer mixture before polymerisation.
Noen brannhemmende midler, særlig de midler som har høy varmestabilitet, blandes med fordel med antimonoksid. Det har vist seg at mengden antimonoksid som tilsettes kan minskes med ca. 50% under det normale uten skadelige virkninger på de brannhemmende egenskaper eller på varmestabiliteten til det ferdige polystyrenmateriale når det anvendes en nitrogenholdig forbindelse som synergistisk forbindelse i materialet. Mengden anvendt antimonoksid overstiger vanligvis ikke 7% av polystyrenharpiksens vekt. Mengden avhenger av type og mengde brannhemmende middel og vil vanligvis variere mellom 2 og 5%. Med andre brannhemmende midler, særlig halogenerte alifatiske forbindelser behøves det ikke antimonoksid. Some fire retardants, especially those with high thermal stability, are advantageously mixed with antimony oxide. It has been shown that the amount of antimony oxide added can be reduced by approx. 50% below normal without harmful effects on the fire-retardant properties or on the thermal stability of the finished polystyrene material when a nitrogen-containing compound is used as a synergistic compound in the material. The amount of antimony oxide used usually does not exceed 7% of the weight of the polystyrene resin. The amount depends on the type and amount of fire retardant and will usually vary between 2 and 5%. With other fire retardants, especially halogenated aliphatic compounds, antimony oxide is not needed.
Oppfinnelsen vil i det etterfølgende bli illustrert ved hjelp av eksempler. The invention will subsequently be illustrated by means of examples.
Polystyrenmaterialets selvslukkende egenskaper bestemmes under anvendelse av prøvestykker på 12,7 x 0,32 cm ved følgende prøve: Hvert prøvestykke henges slik at den største dimensjon er vertikal og avstanden mellom prøvestykkets nedre ende og bren-nerens øvre ende er 0,95 cm. Brenneren tennes og flammen har en høyde på 1,9 cm. Luft forblandes med gassen for å unngå gul spiss på flammen. Flammen anbringes under prøvestykkets nedre ende i 3 sekunder. Brenneren fjernes og flammeforbrenningstiden måles. Data i eksemplene utgjør middelverdier for 20 suksessive prøver (10 prøvestykker og 2 bestemmelser for hvert prøvestykke). The polystyrene material's self-extinguishing properties are determined using test pieces of 12.7 x 0.32 cm in the following test: Each test piece is hung so that the largest dimension is vertical and the distance between the lower end of the test piece and the upper end of the burner is 0.95 cm. The burner is lit and the flame has a height of 1.9 cm. Air is mixed with the gas to avoid a yellow tip on the flame. The flame is placed under the lower end of the test piece for 3 seconds. The burner is removed and the flame combustion time is measured. Data in the examples represent mean values for 20 successive samples (10 samples and 2 determinations for each sample).
Dersom ikke annet er angitt er vekt% basert på hele materialets vekt. If not stated otherwise, weight% is based on the weight of the entire material.
Eksempel 1 Example 1
Prøvestykker av polystyrenskumplast ble fremstilt ved sprøytestøping av ekspanderbare polystyrenperler som inneholdt pentan som esemiddel, og 1,5% pentabrommonoklorcykloheksan og 0,2% av en av de synergistiske forbindelser som er opplistet nedenfor eller en blanding av disse. Test pieces of polystyrene foam were prepared by injection molding expandable polystyrene beads containing pentane as blowing agent, and 1.5% pentabromomonochlorocyclohexane and 0.2% of one of the synergistic compounds listed below or a mixture thereof.
De midlere forbrenningstider ble bestemt. The average combustion times were determined.
Det samme materiale, men uten synergistisk forbindelse hadde en forbrenningstid på 3,21 sekunder. The same material, but without the synergistic compound, had a burn time of 3.21 seconds.
Eksempel 2 Example 2
Prøvestykker av polystyrenskumplast ble fremstilt ved sprøytestøping av ekspanderbare polystyrenperler som inneholdt pentan som esemiddel. Pentabrommonoklorcykloheksan (1,5%) og dilauryl-dimetylammoniumklorid (0,2%) ble tilsatt til perlene. Test pieces of polystyrene foam were produced by injection molding expandable polystyrene beads containing pentane as blowing agent. Pentabromomonochlorocyclohexane (1.5%) and dilauryl-dimethylammonium chloride (0.2%) were added to the beads.
Flammeforbrenningstiden var 0,70 sekunder, sammenliknet med 3,21 sekunder uten ammoniumforbindelsen. The flame burn time was 0.70 seconds, compared to 3.21 seconds without the ammonium compound.
Eksempel 3 Example 3
Prøvestykker av polystyrenskumplast ble fremstilt ved ekstrudering av polystyren i nærvær av et esemiddel, som inneholdt like store mengder CF2C12 og CFCl^, 3% pentabrommonoklorcykloheksan samt 0,1% distearyl-dimetylammoniumklorid. Test pieces of polystyrene foam were produced by extruding polystyrene in the presence of a blowing agent, which contained equal amounts of CF2C12 and CFCl3, 3% pentabromomonochlorocyclohexane and 0.1% distearyldimethylammonium chloride.
Flammeforbrenningstiden var 1,10 sekunder. Cellene i poly-styrenskumplasten hadde en gjennomsnittsstørrelse på 80 um, og sluttproduktets densitet var 35 kg/m 3. The flame burn time was 1.10 seconds. The cells in the polystyrene foam had an average size of 80 µm, and the density of the final product was 35 kg/m 3.
Et liknende produkt, men uten ammoniumforbindelsen hadde følgende egenskaper: A similar product, but without the ammonium compound, had the following properties:
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2225779A | 1979-03-20 | 1979-03-20 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO800768L NO800768L (en) | 1980-09-22 |
| NO162077B true NO162077B (en) | 1989-07-24 |
| NO162077C NO162077C (en) | 1989-11-01 |
Family
ID=21808670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO800768A NO162077C (en) | 1979-03-20 | 1980-03-18 | SELF-EXTENDING EXPANDED POLYSTYRENE MATERIAL. |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS55125140A (en) |
| BE (1) | BE882241A (en) |
| CA (1) | CA1145083A (en) |
| CS (1) | CS226409B2 (en) |
| DE (1) | DE3009065A1 (en) |
| FR (1) | FR2451928B1 (en) |
| GB (1) | GB2048276B (en) |
| IT (1) | IT1140778B (en) |
| NL (1) | NL190163C (en) |
| NO (1) | NO162077C (en) |
| SE (1) | SE8002057L (en) |
| SU (1) | SU1097200A3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047443A1 (en) * | 1980-12-17 | 1982-07-22 | Bayer Ag, 5090 Leverkusen | MOLDED STABILIZERS AGAINST THERMOLYSIS WITH LOW MONOMER CONTENT |
| IT1395379B1 (en) * | 2009-09-07 | 2012-09-14 | Polimeri Europa Spa | PROCEDURE FOR THE PREPARATION OF EXPANDABLE VINYLAROMATIC POLYMERS WITH REDUCED THERMAL CONDUCTIVITY BY MEANS OF SUSPENSION POLYMERIZATION |
| RU2532519C1 (en) * | 2013-04-15 | 2014-11-10 | Открытое акционерное общество "Казанский химический научно-исследовательский институт" | Polymer-rubber waterproofing composition with reduced fire hazard and method of obtaining thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE817625A (en) * | 1974-07-12 | 1974-11-04 | FLAME-RESISTANT POLYSTYRENE COMPOSITIONS. | |
| CS210623B2 (en) * | 1974-07-12 | 1982-01-29 | Labofina Sa | Polymere heat resistant mixture |
-
1980
- 1980-02-11 GB GB8004433A patent/GB2048276B/en not_active Expired
- 1980-02-18 CA CA000345834A patent/CA1145083A/en not_active Expired
- 1980-02-28 SU SU802888301A patent/SU1097200A3/en active
- 1980-02-29 NL NLAANVRAGE8001248,A patent/NL190163C/en not_active IP Right Cessation
- 1980-03-10 DE DE19803009065 patent/DE3009065A1/en active Granted
- 1980-03-10 FR FR8005297A patent/FR2451928B1/en not_active Expired
- 1980-03-12 IT IT20521/80A patent/IT1140778B/en active
- 1980-03-14 BE BE0/199810A patent/BE882241A/en not_active IP Right Cessation
- 1980-03-17 SE SE8002057A patent/SE8002057L/en unknown
- 1980-03-18 NO NO800768A patent/NO162077C/en unknown
- 1980-03-18 JP JP3351880A patent/JPS55125140A/en active Granted
- 1980-03-19 CS CS801902A patent/CS226409B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3009065C2 (en) | 1993-04-15 |
| FR2451928B1 (en) | 1986-08-01 |
| JPS55125140A (en) | 1980-09-26 |
| IT1140778B (en) | 1986-10-10 |
| NO800768L (en) | 1980-09-22 |
| NL8001248A (en) | 1980-09-23 |
| CA1145083A (en) | 1983-04-19 |
| NO162077C (en) | 1989-11-01 |
| GB2048276B (en) | 1983-03-30 |
| SU1097200A3 (en) | 1984-06-07 |
| NL190163B (en) | 1993-06-16 |
| JPH0255454B2 (en) | 1990-11-27 |
| BE882241A (en) | 1980-07-01 |
| GB2048276A (en) | 1980-12-10 |
| SE8002057L (en) | 1980-09-21 |
| FR2451928A1 (en) | 1980-10-17 |
| IT8020521A0 (en) | 1980-03-12 |
| NL190163C (en) | 1993-11-16 |
| CS226409B2 (en) | 1984-03-19 |
| DE3009065A1 (en) | 1980-10-02 |
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