FR2614035A1 - FLAME RETARDANT SILICONE RUBBER COMPOSITION - Google Patents
FLAME RETARDANT SILICONE RUBBER COMPOSITION Download PDFInfo
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- FR2614035A1 FR2614035A1 FR8804993A FR8804993A FR2614035A1 FR 2614035 A1 FR2614035 A1 FR 2614035A1 FR 8804993 A FR8804993 A FR 8804993A FR 8804993 A FR8804993 A FR 8804993A FR 2614035 A1 FR2614035 A1 FR 2614035A1
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- Prior art keywords
- elastomer
- extinguishing
- substance
- composition according
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- 239000000203 mixture Substances 0.000 title claims abstract description 25
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 13
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 13
- 239000003063 flame retardant Substances 0.000 title claims abstract description 12
- 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 description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 35
- 239000000806 elastomer Substances 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000470 constituent Substances 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 5
- 230000015556 catabolic process Effects 0.000 claims abstract description 4
- 230000003197 catalytic effect Effects 0.000 claims abstract description 4
- 238000006731 degradation reaction Methods 0.000 claims abstract description 4
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 3
- -1 CARBON ANHYDRIDE Chemical class 0.000 claims abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 150000003536 tetrazoles Chemical class 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 230000001698 pyrogenic effect Effects 0.000 claims description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 3
- 239000011736 potassium bicarbonate Substances 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- KJUGUADJHNHALS-UHFFFAOYSA-N 1H-tetrazole Substances C=1N=NNN=1 KJUGUADJHNHALS-UHFFFAOYSA-N 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 238000010292 electrical insulation Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000002510 pyrogen Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- OPNUROKCUBTKLF-UHFFFAOYSA-N 1,2-bis(2-methylphenyl)guanidine Chemical compound CC1=CC=CC=C1N\C(N)=N\C1=CC=CC=C1C OPNUROKCUBTKLF-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- XUKUURHRXDUEBC-KAYWLYCHSA-N Atorvastatin Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-KAYWLYCHSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 229910052806 inorganic carbonate Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/14—Macromolecular materials
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3472—Five-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Fireproofing Substances (AREA)
Abstract
L'INVENTION CONCERNE UNE COMPOSITION RETARDATRICE DE FLAMME, A BASE DE CAOUTCHOUC SILICONE, COULABLE OU DURCIE POUR FORMER UN ELASTOMERE, CONTENANT DU CAOUTCHOUC SILICONE, DU DIOXYDE DE TITANE FINEMENT DIVISE, DE PREFERENCE PYROGENE, DES QUANTITES CATALYTIQUES DE PLATINE FINEMENT DIVISE, AU MOINS UNE SUBSTANCE EXTINCTRICE FINEMENT DIVISEE, DE PREFERENCE A L'ETAT SILICONE, ET QUI, SOUS L'INFLUENCE D'UN FEU, DEGAGE UN GAZ EXTINCTEUR IGNIFUGE COMME L'AZOTE OU L'ANHYDRIDE CARBONIQUE, ET EVENTUELLEMENT D'AUTRES CONSTITUANTS, DE PREFERENCE AU MOINS UNE CHARGE SUPPLEMENTAIRE IGNIFUGE, FINEMENT DIVISEE, COMME LE DIOXYDE DE SILICIUM, LA CONCENTRATION DE LA SUBSTANCE EXTINCTRICE ETANT SUFFISAMMENT FAIBLE POUR EVITER UNE DEGRADATION GENANTE DES PROPRIETES D'ISOLATION ELECTRIQUE DE L'ELASTOMERE, CARACTERISEE EN CE QU'ELLE CONTIENT UNE SUBSTANCE EXTINCTRICE QUI DEGAGE LE GAZ EXTINCTEUR IGNIFUGE DANS L'ELASTOMERE SUR UN INTERVALLE DE TEMPERATURES IMMEDIATEMENT INFERIEUR A LA TEMPERATURE DE DECOMPOSITION DE L'ELASTOMERE, ET QUI FAIT MOUSSER L'ELASTOMERE POUR FORMER UN MATERIAU MICROPOREUX, MECANIQUEMENT STABLE, DONT LE VOLUME N'A QUE LEGEREMENT AUGMENTE.THE INVENTION RELATES TO A FLAME-RETARDING COMPOSITION, BASED ON SILICONE RUBBER, CASTABLE OR HARDENED TO FORM AN ELASTOMER, CONTAINING SILICONE RUBBER, FINALLY DIVIDED TITANIUM DIOXIDE, PREFERREDLY PYROGEN, QUANTITIES OF PLATES AS WELL AS FINALLY CATALYTIC. A FINALLY DIVIDED EXTINGUISHING SUBSTANCE, PREFERABLY IN THE SILICONE STATE, AND WHICH, UNDER THE INFLUENCE OF A FIRE, EMERGES A FIRE-PROOF EXTINGUISHING GAS SUCH AS NITROGEN OR CARBON ANHYDRIDE, AND OPTIONALLY OTHER CONSTITUENTS, PREFERABLY AT LEAST ONE ADDITIONAL FIRE-RETARDANT, FINALLY DIVIDED LOAD, SUCH AS SILICON DIOXIDE, THE CONCENTRATION OF THE EXTINGUISHING SUBSTANCE BEING SUFFICIENTLY LOW TO AVOID A GENUINE DEGRADATION OF THE ELECTRICAL INSULATION PROPERTIES OF THE ELASTOMER IN THIS SUBSTANCE, CHARACTERIZED EXTINGUISHING EXTINGUISHING GAS EXTINGUISHING GAS IN THE ELASTOMER OVER A TEMPERATURE INTERVAL IMMEDIATELY LOWER THAN THE DECOMPOSI TEMPERATURE TION OF THE ELASTOMER, AND WHICH MAKES THE ELASTOMER FOAM TO FORM A MICROPOREOUS, MECHANICALLY STABLE MATERIAL, THE VOLUME OF WHICH HAS ONLY INCREASED.
Description
COMPOSITION DE CAOUTCHOUC SILICONE RETARDATRICE DERUBBER-RETARDANT SILICONE RUBBER COMPOSITION
FLAMME.FLAME.
La présente invention concerne une composition retardatrice de flamme, à base de caoutchouc silicone, coulable ou durcie pour former un élastomère, contenant du caoutchouc siliconé, du dioxyde de titane finement divisé, de préférence pyrogène, des quantités catalyti- ques-de platine finement divisé, au moins une substance extinctrice finement divisée, de préférence à l'état siliconé, et qui, sous l'influence d'un feu, dégage un gaz extincteur ignifuge, comme l'azote ou l'anhydride carbonique, et éventuellement d'autres constituants, de préférence au moins une charge supplémentaire ignifuge, The present invention relates to a flame retardant composition, based on silicone rubber, pourable or hardened to form an elastomer, containing silicone rubber, finely divided titanium dioxide, preferably pyrogenic, catalytic amounts of finely divided platinum. , at least one finely divided extinguishing substance, preferably in the silicone state, and which, under the influence of a fire, gives off a flame-retardant extinguishing gas, such as nitrogen or carbon dioxide, and possibly others constituents, preferably at least one additional flame retardant filler,
finement divisée, comme le dioxyde de silicium, la con- finely divided, like silicon dioxide, the
centration de la substance extinctrice étant suffisamment faible pour éviter une dégradation gênante des propriétés centering of the extinguishing substance being sufficiently weak to avoid an annoying degradation of the properties
d'isolation électrique de l'élastomère. electrical insulation of the elastomer.
Il existe déjà des compositionsde ce genre (DOS N There are already compositions of this kind (DOS N
27 26 567), dans lesquelles l'addition de triazole ampli- 27 26 567), in which the addition of triazole
fie l'effet d'ignifugation de la combinaison de dioxyde de titane finement divisé, de préférence pyrogène, avec des quantités catalytiques de platine; ce matériau forme une substance extinctrice, qui dégage de l'azote sous l'influence d'un feu. De plus, cette composition connue utilise l'effet favorable, lui aussi déjà connu, d'une fie the fireproofing effect of the combination of finely divided titanium dioxide, preferably pyrogenic, with catalytic amounts of platinum; this material forms an extinguishing substance, which gives off nitrogen under the influence of a fire. In addition, this known composition uses the favorable effect, also already known, of a
faible addition de noir de carbone (DOS NO 20 34 919). low addition of carbon black (DOS NO 20 34 919).
La DOS N' 20 35 361 décrit l'utilisation du carbo- DOS No. 20 35 361 describes the use of the carbon
nate de calcium en tant que substance extinctrice; sous calcium nate as an extinguishing substance; under
l'influence d'un feu, il s'en dégage de l'anhydride car- the influence of a fire, it releases from it anhydride car-
bonique. L'amplification de l'effet de protection contre le bonique. Amplification of the protective effect against
feu, obtenue grâce à la présence d'une substance extinc- fire, obtained by the presence of an extinguishing substance
trice, est limitée par le fait que, en règle générale, la concentration de la substance extinctrice ne peut être is limited by the fact that, as a general rule, the concentration of the extinguishing substance cannot be
que de quelques pourcents en poids, pour éviter une dété- only a few percent by weight, to avoid dete
rioration gênante des propriétés électriques et mécani- annoying improvement in electrical and mechanical properties
ques de l'élastomère, propriétés qui sont souhaitées au cours d'une utilisation normale de l'élastomère ou des properties of the elastomer, properties which are desired during normal use of the elastomer or
objets fabriqués à partir de ce dernier. objects made from it.
La Drésente invention a pour but de fournir une composi.- The purpose of this invention is to provide a composite.
tion ou masse du type décrit ci-dessus, qui présente un effet tion or mass of the type described above, which has an effect
encore meilleur de protection contre le feu, sans augmen- even better fire protection, no increase
tation de la teneur en la substance extinctrice, et sans dégradation des propriétés de l'élastomère, propriétés tation of the content of the extinguishing substance, and without degradation of the properties of the elastomer, properties
souhaitées en utilisation normale.desired in normal use.
L'invention concerne à cet effet une composition du To this end, the invention relates to a composition of
type décrit-ci-dessus, caractérisée en ce qu'elle con- - type described above, characterized in that it contains -
tient une substance extinctrice qui dégage dans l'élasto- holds an extinguishing substance which gives off in the elasto-
mère un gaz extincteur ignifuge, sur un intervalle de températures immédiatement inférieur à la température de mother a fire-retardant extinguishing gas, over a temperature range immediately below the temperature of
décomposition de l'élastomère, et qui provoque un mous- decomposition of the elastomer, and which causes a foam-
sage de l'élastomère pour former un matériau microporeux, wise of the elastomer to form a microporous material,
mécaniquement stable, et dont le volume n'a que légère- mechanically stable, and whose volume is only slight-
ment augmenté.increased.
Dans la composition selon l'invention, et en raison de l'intervalle particulier de températures dans lequel se dégage le gaz extincteur, ce gaz extincteur qui se dégage est, au moins en partie, utilisé pour former dans l'élastomère, peu de temps avant sa décomposition, une In the composition according to the invention, and due to the particular temperature range in which the extinguishing gas is released, this extinguishing gas which is released is, at least in part, used to form in the elastomer, shortly before its decomposition, a
structure de mousse microporeuse présentant une résis- microporous foam structure with resistance
tance mécanique élevée, la structure de mousse assurant une bonne isolation thermique et une protection efficace high mechanical strength, the foam structure ensuring good thermal insulation and effective protection
des zones plus profondes de l'élastomère. La bonne résis- deeper areas of the elastomer. The right resistance
tance mécanique de la structure de mousse est aussi due à mechanical strength of the foam structure is also due to
la présence du dioxyde de titane, qui a un effet renfor- the presence of titanium dioxide, which has a reinforcing effect
çateur. Il est possible d'améliorer encore plus la résis- ator. It is possible to further improve the resistance.
tance de la structure de mousse, si la composition con- tance of the foam structure, if the composition con-
tient des constituants supplémentaires, renforçateurs et ignifuges, et en particulier au moins une autre charge holds additional constituents, reinforcers and flame retardants, and in particular at least one other charge
ignifuge, finement divisée, comme le dioxyde de silicium. flame retardant, finely divided, like silicon dioxide.
Il s'est révélé que la composition selon l'invention assurait, dans le cas d'un feu, le bon fonctionnement des It turned out that the composition according to the invention ensured, in the case of a fire, the proper functioning of the
pièces fabriquées en l'élastomère, par exemple les élé- parts made of elastomer, for example ele-
ments isolants d'installations électriques, et ce pendant un temps nettement plus long qu'avec les compositions de la technique antérieure. De plus, on a trouvé, d'une insulating elements of electrical installations, and this for a much longer time than with the compositions of the prior art. In addition, we found
manière surprenante, que les élastomères selon l'inven- surprisingly, that the elastomers according to the invention
tion présentaient de plus une résistance au cheminement also had resistance to tracking
(en anglais: "tracking") nettement améliorée. (in English: "tracking") significantly improved.
L'homme de métier peut facilement, éventuellement à l'aide de quelques expériences simples, sélectionner les Those skilled in the art can easily, possibly using a few simple experiments, select the
substances extinctrices appropriées. suitable extinguishing substances.
On peut utiliser comme substances extinctrices des carbonates et bicarbonates inorganiques qui dégagent de l'anhydride carbonique, lequel joue le rôle d'un gaz extincteur, peu de temps avant la décomposition de l'élastomère, qui s'effectue normalement aux environs de 1800C. Conviennent tout particulièrement, dans ce sens, le bicarbonate de sodium, le bicarbonate de potassium et le carbonate de magnésium. Ces substances sont en outre très bon marché. A ce propos, il est particulièrement Inorganic carbonates and bicarbonates which release carbon dioxide, which acts as an extinguishing gas, can be used as extinguishing substances shortly before the decomposition of the elastomer, which normally takes place around 1800C. Particularly suitable in this sense are sodium bicarbonate, potassium bicarbonate and magnesium carbonate. These substances are also very inexpensive. In this regard, it is particularly
surprenant que l'utilisation de ces substances inorgani- surprising that the use of these inorganic substances
ques augmente aussi la résistance au cheminement. It also increases resistance to tracking.
On peut utiliser comme substances extinctrices d'autres substances organiques, ayant une teneur élevée en azote et qui dégagent de l'azote dans l'intervalle voulu de températures. Conviennent tout particulièrement le tétrazole et ses dérivés. Le tétrazole, CH2N4, a une Other organic substances which have a high nitrogen content and which give off nitrogen within the desired temperature range can be used as extinguishing substances. Particularly suitable are tetrazole and its derivatives. Tetrazole, CH2N4, has a
teneur très élevée en azote et se décompose dans l'inter- very high nitrogen content and decomposes in the inter-
valle souhaité de températures. Le choix du ou des sub- desired valle of temperatures. The choice of the sub-
stituants peut influencer et optimiser les propriétés lors de la mise en oeuvre et la vitesse de décomposition, qui influent sur le diamètre des pores de la structure de mousse. Dans ce sens, conviennent essentiellement les stituants can influence and optimize the properties during processing and the rate of decomposition, which influence the pore diameter of the foam structure. In this sense, the
dérivés du tétrazole portant des substituants aliphati- tetrazole derivatives bearing aliphati-
ques, aromatiques et naphténiques (alicycliques). Une aromatic and naphthenic (alicyclic). A
substance particulièrement avantageuse est le 5-phényl- particularly advantageous substance is 5-phenyl-
tétrazole.tetrazole.
De même, des combinaisons de ces substances condui- Likewise, combinations of these substances lead to
sent à des résultats favorables, sans interférences entre feels favorable results, without interference between
les composants.components.
Le tableau ci-après présente cinq élastomères selon The table below presents five elastomers according to
l'invention (N 1 & 5), et trois élastomères témoins pré- the invention (N 1 & 5), and three control elastomers pre-
parés selon la technique antérieure. Parmi ces derniers, l'élastomère A ne contient pas d'additifs retardateurs de flamme, l'élastomère B contient la combinaison connue de TiO2 pyrogène et de platine, et l'élastomère C contient trimmed according to the prior art. Among these, elastomer A does not contain flame retardant additives, elastomer B contains the known combination of pyrogenic TiO2 and platinum, and elastomer C contains
en plus de la di-ortho-tolylguanidine, servant de sub- in addition to di-ortho-tolylguanidine, serving as a
stance extinctrice qui dégage de l'azote sous l'influence extinguishing stance which releases nitrogen under the influence
d'un feu, mais dans un intervalle de températures diffé- of a fire, but in a different temperature range
rent de celui faisant l'objet de la présente invention, de sorte que les effets selon l'invention ne peuvent se produire. Le tableau montre que les élastomères B et C, qui rent of the object of the present invention, so that the effects according to the invention can not occur. The table shows that the elastomers B and C, which
sont protégés contre le feu selon la technique anté- are protected against fire using the prior art
rieurs, présentent un temps de combustion considérable- laughers, have a considerable burning time -
ment plus faible que celui de l'élastomère non-protégé A, et ne tendent pas à subir une post-combustion; le résidu ment weaker than that of unprotected elastomer A, and do not tend to undergo post-combustion; the residue
de combustion n'est qu'une fraction du résidu de combus- of combustion is only a fraction of the combustion residue
tion de l'élastomère non-protegé. De même, la résistance au cheminement est très nettement améliorée. Le tableau montre en outre que, par contraste, les élastomères selon l'invention présentent une réduction encore plus forte du temps de combustion et du résidu de combustion, avec des tion of the unprotected elastomer. Likewise, the resistance to tracking is very markedly improved. The table further shows that, by contrast, the elastomers according to the invention exhibit an even greater reduction in the combustion time and in the combustion residue, with
propriétés très avantageuses pour ce qui est de la résis- very advantageous properties in terms of resistance
tance au cheminement; bien évidemment, c'est avec l'élastomère N 1, qui ne contient aucun carbonate à liaisons ioniques, que l'on a le trajet de cheminement le tance to progress; Obviously, it is with the elastomer N 1, which contains no carbonate with ionic bonds, that we have the path of the
plus court.shorter.
Les compositions selon l'invention, sous la forme d'un élastomère, conviennent tout particulièrement à la The compositions according to the invention, in the form of an elastomer, are very particularly suitable for the
fabrication de pièces structurales pour isolation élec- manufacture of structural parts for electrical insulation
trique; ces pièces structurales sont donc supérieures, en raison de leurs propriétés isolantes avantageuses cudgel; these structural parts are therefore superior, because of their advantageous insulating properties
décrites ci-dessus, et de leur résistance élevée au feu. described above, and their high fire resistance.
Selon un mode préféré de réalisation de l'invention on préconise une composition qui contient les ingrédients suivants: parties en poids de caoutchouc silicone, environ 5 parties en poids de TiO2, environ 0,005 partie en poids de platine, et environ 1 partie en poids d'une substance extinctrice choisie parmi le carbonate de magnésium, le bicarbonate According to a preferred embodiment of the invention, a composition is recommended which contains the following ingredients: parts by weight of silicone rubber, approximately 5 parts by weight of TiO2, approximately 0.005 parts by weight of platinum, and approximately 1 part by weight of '' an extinguishing substance chosen from magnesium carbonate, bicarbonate
de sodium et le bicarboante de potassium. sodium and potassium bicarbante.
Selon un autre mode préféré de réalisation on préco- According to another preferred embodiment,
nise une composition qui contient les ingrédients suivants parties en poids de caoutchouc silicone, environ 0,005 parties en poids de platine, et nise a composition which contains the following ingredients parts by weight of silicone rubber, approximately 0.005 parts by weight of platinum, and
environ 0,2 partie en poids de 5-phényl-tétrazole. about 0.2 parts by weight of 5-phenyl-tetrazole.
TABLEAU: EXEMPLES D'ELASTOMERESTABLE: EXAMPLES OF ELASTOMERS
Constituant Technique antérieure Composition N Parties en poids A B C 1 2 3 4 5 Caoutchouc silicone VMQ 100 100 100 %00 100 100 100 100 Peroxyde de dicumyle 0,9 0,9 0,9 0,9 0,9 0,9 0,9 0,9 TiO2 pyrogéne - 5 5 5 5 5 5 5 latine - 0,005 0,005 0,005 0,005 0,005 0,005 0,005 Constituent Prior art Composition N Parts by weight ABC 1 2 3 4 5 Silicone rubber VMQ 100 100 100% 00 100 100 100 100 Dicumyl peroxide 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 pyrogenic TiO2 - 5 5 5 5 5 5 5 Latin - 0.005 0.005 0.005 0.005 0.005 0.005 0.005
i-orthotolyl-guanidine - - 0,2 - - - - - i-orthotolyl-guanidine - - 0.2 - - - - -
-phényltétrazole - - - 0,2 - - - - -phenyltetrazole - - - 0.2 - - - -
gCO3 - - - - -gCO3 - - - - -
gCo3 siliconé - - - - - 1 - -silicone gCo3 - - - - - 1 - -
aHCO3 - - - - - 1 NaHCO3 siliconé - - - - - - - 1 Essai de combustion VDE 0304 Temps de combustion, s 180 60 58 30 28 26 40 35 aHCO3 - - - - - 1 NaHCO3 siliconized - - - - - - - 1 Combustion test VDE 0304 Burning time, s 180 60 58 30 28 26 40 35
Temps de postcombustion, s 35 - - - - - - - Post-combustion time, s 35 - - - - - - -
Résidu de combustion, mm 11il 3 3 1 0,5 0,5 1,5 1,5 Résistance au cheminement VDE 0303 Classe 2,5 - 3,5 3,5 3,5 3,5 3,5 3,5 Perte de poids, % 0,75 - 0,05 0,05 0,05 0,05 0,16 0,1 Profondeur de cheminement, mm 4,2 3,6 1,6 2,4 1,6 2,4 1,6 Longueur de cheminement, mm 40,7 - 20,0 8,7 17,8 24,2 34,4 30,0 N ou Combustion residue, mm 11il 3 3 1 0.5 0.5 1.5 1.5 Tracking resistance VDE 0303 Class 2.5 - 3.5 3.5 3.5 3.5 3.5 3.5 3.5 Loss weight,% 0.75 - 0.05 0.05 0.05 0.05 0.16 0.1 Path depth, mm 4.2 3.6 1.6 2.4 1.6 2.4 1 , 6 Path length, mm 40.7 - 20.0 8.7 17.8 24.2 34.4 30.0 N or
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873713267 DE3713267C3 (en) | 1987-04-18 | 1987-04-18 | Flame retardant silicone rubber composition and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2614035A1 true FR2614035A1 (en) | 1988-10-21 |
| FR2614035B1 FR2614035B1 (en) | 1992-01-17 |
Family
ID=6325951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8804993A Expired - Lifetime FR2614035B1 (en) | 1987-04-18 | 1988-04-15 | FLAME RETARDANT SILICONE RUBBER COMPOSITION |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS63284263A (en) |
| DE (1) | DE3713267C3 (en) |
| FR (1) | FR2614035B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347309A1 (en) * | 1988-06-16 | 1989-12-20 | AEROSPATIALE Société Nationale Industrielle | Material for protecting an element in case of fire |
| EP0551855A1 (en) * | 1992-01-10 | 1993-07-21 | FLAM-X Gesellschaft für Brandschutz Technologie mbH & Co. KG | Flame-retardant composition |
| FR2705966A1 (en) * | 1993-06-04 | 1994-12-09 | Dow Corning Sa | Antifoam compositions useful especially for the treatment of gastric disorders. |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437596A1 (en) | 1994-10-20 | 1996-04-25 | Daetwyler Ag | Flame-resistant composition for the production of electrical cables with insulation and / or functional integrity |
| CN109705580A (en) * | 2018-12-24 | 2019-05-03 | 上海起帆电缆股份有限公司 | A kind of resistance to cable material and cable of extremely trembling with fear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035361A1 (en) * | 1969-07-16 | 1971-01-28 | Dow Corning Corp , Midland, Mich (V St A) | Compounds based on diorganopolysiloxane that are hard to produce flameproof products |
| FR2355050A1 (en) * | 1976-06-15 | 1978-01-13 | Toray Silicone Co | COMPOSITIONS OF SELF-EXTINGUISHING SILICON ELASTOMERS |
| FR2370778A1 (en) * | 1976-11-12 | 1978-06-09 | Toray Silicone Co | ELASTOMERIC COMPOSITIONS OF SELF-EXTINGUISHING SILICONES |
| EP0051212A1 (en) * | 1980-11-04 | 1982-05-12 | Bayer Ag | Flame-proof polyorganosiloxane compositions |
| JPS57159851A (en) * | 1981-03-28 | 1982-10-02 | Toshiba Silicone Co Ltd | Self-extinguishing composition |
| JPS57159850A (en) * | 1981-03-28 | 1982-10-02 | Toshiba Silicone Co Ltd | Flame retardant composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3862082A (en) * | 1973-10-31 | 1975-01-21 | Toshiba Silicone Kabushiki Kai | Flame retardant silicone rubber compositions |
-
1987
- 1987-04-18 DE DE19873713267 patent/DE3713267C3/en not_active Expired - Fee Related
-
1988
- 1988-04-15 JP JP9329088A patent/JPS63284263A/en active Pending
- 1988-04-15 FR FR8804993A patent/FR2614035B1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2035361A1 (en) * | 1969-07-16 | 1971-01-28 | Dow Corning Corp , Midland, Mich (V St A) | Compounds based on diorganopolysiloxane that are hard to produce flameproof products |
| FR2355050A1 (en) * | 1976-06-15 | 1978-01-13 | Toray Silicone Co | COMPOSITIONS OF SELF-EXTINGUISHING SILICON ELASTOMERS |
| FR2370778A1 (en) * | 1976-11-12 | 1978-06-09 | Toray Silicone Co | ELASTOMERIC COMPOSITIONS OF SELF-EXTINGUISHING SILICONES |
| EP0051212A1 (en) * | 1980-11-04 | 1982-05-12 | Bayer Ag | Flame-proof polyorganosiloxane compositions |
| JPS57159851A (en) * | 1981-03-28 | 1982-10-02 | Toshiba Silicone Co Ltd | Self-extinguishing composition |
| JPS57159850A (en) * | 1981-03-28 | 1982-10-02 | Toshiba Silicone Co Ltd | Flame retardant composition |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, vol. 7, no. 3 (C-143)[1148], 7 janvier 1983; & JP-A-57 159 850 (TOSHIBA SILICONE K.K.) 02-10-1982 * |
| PATENT ABSTRACTS OF JAPAN, vol. 7, no. 3 (C-143)[1148], 7 janvier 1983; & JP-A-57 159 851 (TOSHIBA SILICONE K.K.) 02-10-1982 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347309A1 (en) * | 1988-06-16 | 1989-12-20 | AEROSPATIALE Société Nationale Industrielle | Material for protecting an element in case of fire |
| EP0551855A1 (en) * | 1992-01-10 | 1993-07-21 | FLAM-X Gesellschaft für Brandschutz Technologie mbH & Co. KG | Flame-retardant composition |
| FR2705966A1 (en) * | 1993-06-04 | 1994-12-09 | Dow Corning Sa | Antifoam compositions useful especially for the treatment of gastric disorders. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3713267C3 (en) | 1998-10-01 |
| JPS63284263A (en) | 1988-11-21 |
| DE3713267C2 (en) | 1994-04-21 |
| DE3713267A1 (en) | 1988-10-27 |
| FR2614035B1 (en) | 1992-01-17 |
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