NO141560B - CHLORINE PLASTIC WITH REDUCED FLAMMABILITY AND ROEYK DEVELOPMENT IN THE EVENT OF FIRE - Google Patents
CHLORINE PLASTIC WITH REDUCED FLAMMABILITY AND ROEYK DEVELOPMENT IN THE EVENT OF FIRE Download PDFInfo
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- NO141560B NO141560B NO4639/73A NO463973A NO141560B NO 141560 B NO141560 B NO 141560B NO 4639/73 A NO4639/73 A NO 4639/73A NO 463973 A NO463973 A NO 463973A NO 141560 B NO141560 B NO 141560B
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- fire
- smoke
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- 229920003023 plastic Polymers 0.000 title claims description 17
- 239000004033 plastic Substances 0.000 title claims description 17
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
- 229910052801 chlorine Inorganic materials 0.000 title 1
- 239000000460 chlorine Substances 0.000 title 1
- 239000000779 smoke Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 10
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 159000000003 magnesium salts Chemical class 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 229910017356 Fe2C Inorganic materials 0.000 claims 1
- 229910019440 Mg(OH) Inorganic materials 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 13
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 13
- 238000000197 pyrolysis Methods 0.000 description 10
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 239000001095 magnesium carbonate Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 150000002681 magnesium compounds Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- 241000239290 Araneae Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920003237 carborane-containing polymer Polymers 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- WRZAGCUJZBBAAW-SWJSCKDZSA-N dibutyltin;dioctyl (z)-but-2-enedioate Chemical compound CCCC[Sn]CCCC.CCCCCCCCOC(=O)\C=C/C(=O)OCCCCCCCC WRZAGCUJZBBAAW-SWJSCKDZSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- SFMJNHNUOVADRW-UHFFFAOYSA-N n-[5-[9-[4-(methanesulfonamido)phenyl]-2-oxobenzo[h][1,6]naphthyridin-1-yl]-2-methylphenyl]prop-2-enamide Chemical compound C1=C(NC(=O)C=C)C(C)=CC=C1N1C(=O)C=CC2=C1C1=CC(C=3C=CC(NS(C)(=O)=O)=CC=3)=CC=C1N=C2 SFMJNHNUOVADRW-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 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
- 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
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Fireproofing Substances (AREA)
Description
Foreliggende oppfinnelse angår plast med forminsket brennbarhet og røykutvikling i tilfelle av brann, på basis av en blanding av 30-70 vekt-% av en vinylklorid-homo- eller The present invention relates to plastics with reduced flammability and smoke generation in the event of fire, based on a mixture of 30-70% by weight of a vinyl chloride homo- or
-kopolymer og 70-30 vekt-% av en akrylnitril/butadien-gummi, -copolymer and 70-30% by weight of an acrylonitrile/butadiene rubber,
og inneholdende 0,5-75 vektdeler Fe20^ pr. 100 vektdeler av plastblandingen, samt et magnesiumsalt av en svak syre, og denne plast er kjennetegnet ved at den inneholder 5-200 vektdeler (MgC03)4-Mg(OH)2«x H20 hvor x er 5 eller 6, pr. 100 vektdeler av plastblandingen. and containing 0.5-75 parts by weight of Fe20^ per 100 parts by weight of the plastic mixture, as well as a magnesium salt of a weak acid, and this plastic is characterized by the fact that it contains 5-200 parts by weight (MgC03)4-Mg(OH)2«x H20 where x is 5 or 6, per 100 parts by weight of the plastic mixture.
Det som her, og i patentkravets innledning, er angitt What is stated here, and in the introduction of the patent claim
som kjent teknikk, er kjent fra britisk patent nr. 1.028.323, især eksempel 5, hvor det anvendes 4 0 deler rødt jernoksyd til 222 deler myknet, farget og stabilisert PVC. Det ligger innen-for rammen av dette patent å erstatte den ene del MgO ifølge det nevnte eksempel med opptil 5 deler av et basisk Mg-salt av en svak, organisk syre, beregnet som MgO, pr. 100 deler PVC (claim 10). as prior art, is known from British patent no. 1,028,323, especially example 5, where 40 parts of red iron oxide are used to 222 parts of softened, colored and stabilized PVC. It is within the scope of this patent to replace the one part MgO according to the aforementioned example with up to 5 parts of a basic Mg salt of a weak, organic acid, calculated as MgO, per 100 parts PVC (claim 10).
Det er forøvrig kjent fra US-patent 3.560.441 å tilsette antimontrioksyd til polyvinylklorid med det formål å oppnå flammeretardering og røykdempning, og at bruk av ferrioksyd kan medvirke til å danne en forkullingsskorpe når et polyamid ut-settes for pyrolyse, er kjent fra US-patent 3.418.267. It is also known from US patent 3,560,441 to add antimony trioxide to polyvinyl chloride with the aim of achieving flame retardancy and smoke suppression, and that the use of ferric oxide can contribute to forming a char crust when a polyamide is subjected to pyrolysis, is known from US -patent 3,418,267.
Nylig foretatte undersøkelser av pyrolyse-produktene av polyvinylklorid og kopolymerer av vinylklorid og mindre mengder komonomerer som vinylacetat og " propylen, har vist at blant hovedproduktene finnes benzen og toluen. Man har imidlertid nå funnet at tilsetning av de angitte mengder ferrioksyd til vinylkloridholdig plast i vesentlig grad reduserer den utviklede mengde benzen og toluen ved pyrolyse, idet de synes å katalysere andre nedbrytningsreaksjoner. Mengden av de C1 .- Cc b alifatiske hydrokarboner som dannes, økeri nemlig. Recent investigations into the pyrolysis products of polyvinyl chloride and copolymers of vinyl chloride and smaller amounts of comonomers such as vinyl acetate and "propylene" have shown that among the main products are benzene and toluene. degree reduces the amount of benzene and toluene developed during pyrolysis, as they seem to catalyze other decomposition reactions, namely the amount of the C1 .- Cc b aliphatic hydrocarbons that are formed increases.
Siden benzen og andre aromatiske hydrokarboner er h<p>ved-røykdannerne ved brann, synes det å være en forbindelse mellom røyk, utviklet fra en vinylkloridholdig plast, og den avgitte mengde benzen og toluen, idet islik plast, når den er tilsatt ferrioksyd, som sagt avgir betraktelig mindre mengder benzen og toluen og samtidig betraktelig mindre røyk. Når plasten dessuten tilsettes de angitte mengder hydratiserte magnesiumforbindelser, blir flammespredningen forsinket, og forbindelsene synes å bli betraktelig mer brannsikre. Undersøkelsen av pyrolyseproduktene av polyvinylklorid ble foretatt slik: Man laget en serie prøver inneholdende vinylklorid-homopolymer og to deler (pr. Since benzene and other aromatic hydrocarbons are the primary smoke generators in a fire, there appears to be a connection between smoke developed from a vinyl chloride-containing plastic and the amount of benzene and toluene given off, since icy plastic, when ferric oxide is added, as said emits considerably smaller amounts of benzene and toluene and at the same time considerably less smoke. When the specified amounts of hydrated magnesium compounds are added to the plastic, the flame spread is delayed, and the compounds appear to be considerably more fireproof. The examination of the pyrolysis products of polyvinyl chloride was carried out as follows: A series of samples containing vinyl chloride homopolymer and two parts (per
100 deler harpiks), dibutyltinn-bis-oktylmaleat som stabilisator, og derpå en annen serie prøver som inneholdt vinylklorid-homopolymer ("Diamond 4 50") og to deler pr. 100 vektdeler harpiks, den samme stabilisator, samt to deler, pr. 100 vektdeler harpiks, ferrioksyd. Man pyroliserte nøyaktig utveide prøver av disse materialer og målte den avgitte mengde saltsyre. Denne mengde viste seg å være kvantitativ. Dette holdt stikk enten ferrioksyd-additiv var tilsatt eller ikke, selvom pyrolysen av de prøver som inneholdt to vektdeler ferrioksyd pr. 100 vekt-deler harpiks, viste noe senkning i mengden avgitt saltsyre, hvilket kunne forklares ved at litt saltsyre ble absorbert av ferrioksydet. Den lille forandring i mengden avgitt saltsyre viser klart at de organiske pyrolyseprodukter ikke forandres i en slik grad at det dannes større mengder klorerte aromatiske forbindelser. 100 parts resin), dibutyltin bis-octyl maleate as stabilizer, and then another series of samples containing vinyl chloride homopolymer ("Diamond 4 50") and two parts per 100 parts by weight of resin, the same stabilizer, as well as two parts, per 100 parts by weight resin, ferric oxide. Accurately weighed samples of these materials were pyrolyzed and the amount of hydrochloric acid released was measured. This amount turned out to be quantitative. This held true whether ferric oxide additive was added or not, although the pyrolysis of the samples containing two parts by weight of ferric oxide per 100 parts by weight of resin, showed a slight decrease in the amount of hydrochloric acid released, which could be explained by the fact that some hydrochloric acid was absorbed by the ferric oxide. The small change in the amount of hydrochloric acid emitted clearly shows that the organic pyrolysis products are not changed to such an extent that larger amounts of chlorinated aromatic compounds are formed.
Standardprøver og prøver som inneholdt ferrioksyd, ble pyrolisert i luft og helium, og i begge tilfeller ble pyrolyseproduktene separert ved hjelp av kolonner. Den første kolonne var en "Parapak Q" som separerer C^-C^-fraksjonen, og den andre en 6 meter "Dexsil"-kolonne som separerer fraksjonene Standard samples and samples containing ferric oxide were pyrolysed in air and helium, and in both cases the pyrolysis products were separated using columns. The first column was a "Parapak Q" which separates the C^-C^ fraction, and the second a 6 meter "Dexsil" column which separates the fractions
i in
Cg-C-^2' En sammenligning av de jernholdige prøver med stand-ardprøvene viste at i den jernholdige polymer økte alle andre spaltningsprodukter på bekostning av benzen. Mengden av toluen og naftalen var også blitt betraktelig mindre. Ved tilsetning av en mindre mengde ferrioksyd til vinylklorid-homopolymere ser man altså at mengden C^-Cg-alifatiske hydrokarboner økes på bekostning av den mengde benzen og andre aromatiske hydrokarboner som dannes ved nedbrytningen av polymeren. Cg-C-^2' A comparison of the iron-containing samples with the standard samples showed that in the iron-containing polymer all other decomposition products increased at the expense of benzene. The amount of toluene and naphthalene had also decreased considerably. By adding a small amount of ferric oxide to vinyl chloride homopolymers, it is thus seen that the amount of C^-Cg aliphatic hydrocarbons is increased at the expense of the amount of benzene and other aromatic hydrocarbons that are formed by the decomposition of the polymer.
Selom den utviklede røykmengde fra de jernholdige polyvinylklorid-prøver sank betraktelig, ble ikke brennbarheten større. Dette kunne ventes ut fra pyrolyse-resultatene, siden mengden av lette hydrokarboner (gode brennstoffer) ble øket i forhold til mengden av dårligere brennstoffer, nemlig aromatiske hydrokarboner (røykdannere). En gass-kromatografisk analyse av pyrolyseproduktene viste at mengden benzen og toluen ble redusert med ca. 40-50% ved pyrolyse av prøver inneholdende ferrioksyd, (svarende til 40-50% røykreduksjon målt i et NBS røykkammer) i forhold til identiske prøver uten ferrioksyd. Although the amount of smoke developed from the iron-containing polyvinyl chloride samples decreased considerably, the flammability did not increase. This could be expected from the pyrolysis results, since the amount of light hydrocarbons (good fuels) was increased in relation to the amount of inferior fuels, namely aromatic hydrocarbons (smoke generators). A gas chromatographic analysis of the pyrolysis products showed that the amount of benzene and toluene was reduced by approx. 40-50% by pyrolysis of samples containing ferric oxide, (equivalent to 40-50% smoke reduction measured in an NBS smoke chamber) compared to identical samples without ferric oxide.
Man har altså funnet at innarbeidelse av ferrioksyd i plast som inneholder homo- og kopolymere av vinylklorid, særlig myknet polyvinylklorid og polyvinylklorid-modifiserte gummier, It has thus been found that the incorporation of ferric oxide in plastics containing homo- and copolymers of vinyl chloride, in particular softened polyvinyl chloride and polyvinyl chloride-modified rubbers,
i betydelig grad reduserer plastens tendens til å danne røyk ved brann, og ytterligere undersøkelser av plast som inneholdt blandinger av polyvinylklorid og andre harpikser, bekreftet dette. Man oppnår en markert reduksjon i røykutvikling ved mengder F^O^ fra ca. 5% og oppover. significantly reduces the plastic's tendency to form smoke in case of fire, and further investigations of plastics containing mixtures of polyvinyl chloride and other resins confirmed this. A marked reduction in smoke generation is achieved with quantities of F^O^ from approx. 5% and above.
Flammespredningen for plasten ifølge oppfinnelsen blir også nedsatt vesentlig ved innholdet av den hydratiserte forbindelse av magnesiumkarbonat. The flame spread for the plastic according to the invention is also significantly reduced by the content of the hydrated compound of magnesium carbonate.
Følgende eksempler vil illustrere oppfinnelsen klarere. The following examples will illustrate the invention more clearly.
Eksempel 1- 14 Example 1-14
Man laget en forhåndsblanding av følgende ingredienser: A premix was made of the following ingredients:
Den gummiaktige blandjing ble fylt på en Banbury-blander, og resten av ingrediensene, inklusive ferrioksyd og hydratisert magnesiumkarbonat, i de mengder som er oppført i tabell I, ble tilsatt porsjonsvis under blanding opp til en temperatur på ca. 138-150°C. Etter grundig blanding ble det hele valset ut på en to-valsers mølle og avkjølt. The gummy mixture was loaded onto a Banbury mixer, and the rest of the ingredients, including ferric oxide and hydrated magnesium carbonate, in the amounts listed in Table I, were added portionwise while mixing up to a temperature of about 138-150°C. After thorough mixing, it was all rolled out on a two-roll mill and cooled.
Denne utgangsmasse blje viderebehandlet ved å blande 482 vektdeler utgangsmasse med l,|o vektdeler difenylguanidin, This starting mass was further processed by mixing 482 parts by weight of starting mass with 1.0 parts by weight of diphenylguanidine,
2,5 vektdeler sink-dietylditiokarbamat, 8 vektdeler "edderkopp"-svovel (en fin svovelkvalitet), og 44 vektdeler p,p'-oksybis-(benzensulfonylhydrazid) ("Cellogen-OT") i en Banbury-blander ved 66 C maksimum temperatur til alle ingredienser var grundig blandet. Denne blanding ble igjen valset ut til en plate på en to-valsers mølle og avkjølt. Den ble oppvarmet pånytt og valset ut igjen (43°C) og strimler tatt ut, matet direkte til en ekstruder og så ekstrudert til en plate med tykkelse 6,6 mm. Platen ble avkjølt, kuttet til prøvestykker på (25x12,5) cm 2, og disse ble ekspandert og herdet i en ovn til cellulære stykker med tykkelse ca. 14 mm. Oppvarmings- eller herdeprosessen som ble benyttet i ovnen, var 5 minutter ved 104°C, en 20 minutters 2.5 parts by weight zinc diethyldithiocarbamate, 8 parts by weight "spider" sulfur (a fine sulfur grade), and 44 parts by weight p,p'-oxybis-(benzenesulfonylhydrazide) ("Cellogen-OT") in a Banbury mixer at 66 C maximum temperature until all ingredients were thoroughly mixed. This mixture was again rolled out into a sheet on a two-roll mill and cooled. It was reheated and rolled out again (43°C) and strips taken out, fed directly to an extruder and then extruded into a 6.6 mm thick plate. The plate was cooled, cut into test pieces of (25x12.5) cm 2 , and these were expanded and hardened in an oven into cellular pieces with a thickness of approx. 14 mm. The heating or curing process used in the oven was 5 minutes at 104°C, a 20 minute
o ' o OE OE
stigning til 150 C og en sluttherding ved 150 C i 5 minutter. rise to 150 C and a final cure at 150 C for 5 minutes.
De herdede, cellulære platestykker ble renskåret til 12,7 mm tykkelse og til standardiserte mål for røyk- og flamme-prøver. Prøvestykkene for røykprøven var (7,6x7,6) cm 2, og prøvestykkene for flammespredningsforsøkene var (9,5x71) cm 2. The cured cellular sheet pieces were clean cut to 12.7 mm thickness and to standardized dimensions for smoke and flame tests. The test pieces for the smoke test were (7.6x7.6) cm 2 , and the test pieces for the flame spread tests were (9.5x71) cm 2 .
Tabell I nedenfor viser de mengder ferrioksyd (rødt jernoksyd NR 4284) og hydratisert magnesiumkarbonat som ble tilsatt prøvene. Bedømmelsene med hensyn på flammespredning og røyktetthet er oppgitt for hver prøve. Table I below shows the amounts of ferric oxide (red iron oxide NR 4284) and hydrated magnesium carbonate that were added to the samples. The assessments with regard to flame spread and smoke density are given for each sample.
1) FSR betegner en flammesprednings-måling som utføres som en 30/30 tunnelprøve, en standardprøve som er beskrevet i "Cellular Plastics" april 1967, i en artikkel av M.M. Levy med titlen "A Simplified Method for Determining Flame Spread". 2) "Method for Measuring Smoke from Burning Materials" av D. Cross og medarbeidere, A.S.T.M. Special Technical Publi-cation No. 422 (1967) . Målinger foretatt på Amino-NBS-røyk-tetthetskammer, modell 4-5800, American Instrument Company (middelverdi fra tre prøver). 3) Eksempel 10 ble laget fra en utgangsblanding hvor mengden kjønrøk var redusert fra 40 til 30 deler, slik at man fikk et fyllstoffinnhold like stort som i kontrollprøven (eks. 1), dette for å vise at reduksjonen i røykmengden ikke skyldes innholdet av fyllstoff (Fe203 + kjønrøk), men bare innholdet av <Fe>2°3■ 1) FSR denotes a flame spread measurement performed as a 30/30 tunnel test, a standard test described in "Cellular Plastics" April 1967, in an article by M.M. Levy entitled "A Simplified Method for Determining Flame Spread". 2) "Method for Measuring Smoke from Burning Materials" by D. Cross et al., A.S.T.M. Special Technical Publication No. 422 (1967). Measurements taken on Amino-NBS Smoke Density Chamber, Model 4-5800, American Instrument Company (mean value from three samples). 3) Example 10 was made from a starting mixture where the amount of black smoke was reduced from 40 to 30 parts, so that a filler content was obtained as large as in the control sample (ex. 1), this to show that the reduction in the amount of smoke is not due to the content of filler (Fe203 + carbon black), but only the content of <Fe>2°3■
Eksemplene 1-14 viser klart at tendensen til røykut-vikling hos polyvinylkloridholdig plast kan reduseres drastisk ved å tilsette effektive mengder Fe20.j. Videre kan flammespredningen senkes ved samtidig å tilsette effektive mengder av den hydratiserte magnesiumforbindelse. Dette er noe overraskende på grunn av det innholdet av antimontrioksyd (et meget brukt brannhemmende middel) som allerede fantes i alle de materialer som ble prøvet. i Examples 1-14 clearly show that the tendency for smoke to develop in polyvinyl chloride-containing plastics can be drastically reduced by adding effective amounts of Fe 2 O.j. Furthermore, the flame spread can be lowered by simultaneously adding effective amounts of the hydrated magnesium compound. This is somewhat surprising due to the content of antimony trioxide (a widely used fire retardant) which was already present in all the materials tested. in
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31274072A | 1972-12-06 | 1972-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO141560B true NO141560B (en) | 1979-12-27 |
| NO141560C NO141560C (en) | 1980-04-09 |
Family
ID=23212803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO4639/73A NO141560C (en) | 1972-12-06 | 1973-12-05 | CHLORINE PLASTIC WITH REDUCED FLAMMABILITY AND ROEY DEVELOPMENT IN CASE OF FIRE |
Country Status (12)
| Country | Link |
|---|---|
| AU (1) | AU459740B2 (en) |
| BE (1) | BE808311A (en) |
| CA (1) | CA1023081A (en) |
| DE (1) | DE2360950C3 (en) |
| DK (1) | DK136266B (en) |
| ES (1) | ES421233A1 (en) |
| FR (1) | FR2209793B1 (en) |
| GB (1) | GB1457524A (en) |
| IT (1) | IT1000195B (en) |
| NL (1) | NL159421B (en) |
| NO (1) | NO141560C (en) |
| SE (1) | SE404699B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043958A (en) | 1974-10-17 | 1977-08-23 | Uniroyal, Inc. | Flame retarded NBR/PVC compositions |
| US4033916A (en) | 1974-10-17 | 1977-07-05 | Uniroyal Inc. | Ternary flame-retarded compositions including iron oxide |
| GB8421237D0 (en) * | 1984-08-21 | 1984-09-26 | Dunlop Ltd | Hose(1) |
| GB8512575D0 (en) * | 1985-05-17 | 1985-06-19 | Dunlop Ltd | Hose |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE537211A (en) * | ||||
| BE529869A (en) * | 1953-05-06 | 1900-01-01 | ||
| US2902460A (en) * | 1954-09-02 | 1959-09-01 | Goodrich Co B F | Heat and light stable rigid thermoplastic polyvinyl halide compositions |
| NL276395A (en) * | 1961-03-27 | 1900-01-01 | ||
| GB1028323A (en) * | 1963-12-04 | 1966-05-04 | Ici Ltd | Plastic compositions |
| GB1062311A (en) * | 1965-02-22 | 1967-03-22 | Ici Ltd | Plastic compositions |
-
1973
- 1973-11-06 CA CA185,154A patent/CA1023081A/en not_active Expired
- 1973-11-14 AU AU62486/73A patent/AU459740B2/en not_active Expired
- 1973-12-03 SE SE7316310A patent/SE404699B/en unknown
- 1973-12-04 NL NL7316552.A patent/NL159421B/en not_active IP Right Cessation
- 1973-12-05 NO NO4639/73A patent/NO141560C/en unknown
- 1973-12-05 GB GB5638373A patent/GB1457524A/en not_active Expired
- 1973-12-05 IT IT54096/73A patent/IT1000195B/en active
- 1973-12-05 FR FR7343378A patent/FR2209793B1/fr not_active Expired
- 1973-12-05 DK DK658873AA patent/DK136266B/en not_active IP Right Cessation
- 1973-12-06 BE BE138594A patent/BE808311A/en not_active IP Right Cessation
- 1973-12-06 DE DE2360950A patent/DE2360950C3/en not_active Expired
- 1973-12-06 ES ES421233A patent/ES421233A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES421233A1 (en) | 1976-04-01 |
| DK136266C (en) | 1978-02-13 |
| SE404699B (en) | 1978-10-23 |
| NO141560C (en) | 1980-04-09 |
| DE2360950A1 (en) | 1974-07-04 |
| CA1023081A (en) | 1977-12-20 |
| DE2360950C3 (en) | 1979-10-31 |
| DE2360950B2 (en) | 1976-11-11 |
| GB1457524A (en) | 1976-12-01 |
| NL7316552A (en) | 1974-06-10 |
| AU459740B2 (en) | 1975-04-10 |
| FR2209793A1 (en) | 1974-07-05 |
| IT1000195B (en) | 1976-03-30 |
| NL159421B (en) | 1979-02-15 |
| FR2209793B1 (en) | 1976-11-19 |
| BE808311A (en) | 1974-03-29 |
| AU6248673A (en) | 1975-04-10 |
| DK136266B (en) | 1977-09-19 |
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