WO2015092158A1 - Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique - Google Patents
Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique Download PDFInfo
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- WO2015092158A1 WO2015092158A1 PCT/FR2013/053193 FR2013053193W WO2015092158A1 WO 2015092158 A1 WO2015092158 A1 WO 2015092158A1 FR 2013053193 W FR2013053193 W FR 2013053193W WO 2015092158 A1 WO2015092158 A1 WO 2015092158A1
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- WIPO (PCT)
- Prior art keywords
- polyamide
- compound
- wall
- bifunctional
- composition
- Prior art date
Links
- 229910001507 metal halide Inorganic materials 0.000 title claims abstract description 20
- 150000005309 metal halides Chemical class 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000126 substance Substances 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 57
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 229920002647 polyamide Polymers 0.000 claims abstract description 37
- 239000004952 Polyamide Substances 0.000 claims abstract description 22
- 230000001588 bifunctional effect Effects 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 17
- 125000000524 functional group Chemical group 0.000 claims abstract description 13
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 239000002356 single layer Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract 2
- 229910052723 transition metal Inorganic materials 0.000 claims abstract 2
- 150000003624 transition metals Chemical class 0.000 claims abstract 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 26
- 239000011592 zinc chloride Substances 0.000 claims description 13
- 235000005074 zinc chloride Nutrition 0.000 claims description 13
- 239000004970 Chain extender Substances 0.000 claims description 11
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 claims description 10
- 238000005336 cracking Methods 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- HXZRLUTUNSQNCG-UHFFFAOYSA-N 1-[3-(2-oxoazepane-1-carbonyl)benzoyl]azepan-2-one Chemical compound C=1C=CC(C(=O)N2C(CCCCC2)=O)=CC=1C(=O)N1CCCCCC1=O HXZRLUTUNSQNCG-UHFFFAOYSA-N 0.000 claims description 3
- ZDNUPMSZKVCETJ-UHFFFAOYSA-N 2-[4-(4,5-dihydro-1,3-oxazol-2-yl)phenyl]-4,5-dihydro-1,3-oxazole Chemical compound O1CCN=C1C1=CC=C(C=2OCCN=2)C=C1 ZDNUPMSZKVCETJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- -1 bisphenol diglycidyl ethers Chemical class 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- HMOZDINWBHMBSQ-UHFFFAOYSA-N 2-[3-(4,5-dihydro-1,3-oxazol-2-yl)phenyl]-4,5-dihydro-1,3-oxazole Chemical compound O1CCN=C1C1=CC=CC(C=2OCCN=2)=C1 HMOZDINWBHMBSQ-UHFFFAOYSA-N 0.000 claims description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 claims description 2
- 229930185605 Bisphenol Natural products 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- 229920000147 Styrene maleic anhydride Polymers 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 125000006159 dianhydride group Chemical group 0.000 claims description 2
- 125000005442 diisocyanate group Chemical group 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 2
- 150000003951 lactams Chemical class 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims 1
- 230000004075 alteration Effects 0.000 claims 1
- 230000035882 stress Effects 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 1
- CTKKGXDAWIAYSA-UHFFFAOYSA-N 2,6-dibenzylidenecyclohexan-1-one Chemical compound O=C1C(=CC=2C=CC=CC=2)CCCC1=CC1=CC=CC=C1 CTKKGXDAWIAYSA-UHFFFAOYSA-N 0.000 description 1
- WEQPBCSPRXFQQS-UHFFFAOYSA-N 4,5-dihydro-1,2-oxazole Chemical compound C1CC=NO1 WEQPBCSPRXFQQS-UHFFFAOYSA-N 0.000 description 1
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/08—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/66—Microorganisms or materials therefrom
- A61K35/74—Bacteria
- A61K35/741—Probiotics
- A61K35/744—Lactic acid bacteria, e.g. enterococci, pediococci, lactococci, streptococci or leuconostocs
- A61K35/747—Lactobacilli, e.g. L. acidophilus or L. brevis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- 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
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
-
- 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
- C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
- C08K5/353—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/045—Hoses, i.e. flexible pipes made of rubber or flexible plastics with four or more layers without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2377/00—Polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Definitions
- the present invention relates to an element of an engine compartment of a motor vehicle of which at least one outer layer of the wall comprises a thermoplastic composition based on at least one polyamide, and a method of protecting this element against chemical attack. a metal halide.
- the invention applies in particular to any element of a mechanical support structure or a fluid transfer circuit mounted under the engine hood of the motor vehicle that is feasible in a material based on one or more polyamide (s). ), such as a pipe or hose, a motor support, pulleys or transmission rollers, by way of example and in no way limiting.
- the pipes or outer coatings of pipes housed in motor vehicle engine compartments which are made of polyamides are most often based on a polyamide PA 11, PA 12 or PA 6.12, in particular because these polyamides Specifically, they have satisfactory resistance to metal halides, such as zinc chloride, which can be generated in the presence of products such as road salt, for example snow removal, which can infiltrate under the bonnet. Indeed, these salts are chemically very aggressive for other polyamides, such as PA 6 and PA 6.6, which are likely to be degraded by being in particular the seat of stress cracking in English. contact of these halides.
- metal halides such as zinc chloride
- An object of the present invention is to provide an element of a motor compartment of a motor vehicle (ie located under the bonnet), the element having an outer wall monolayer or multilayer, which overcomes the aforementioned drawbacks, and this purpose is achieved in that the inventors have unexpectedly discovered that if at least one bifunctional or multifunctional chain extender compound is reactively extruded with at least a portion of the terminal functional groups of an AP 6 and or PA 6.6 that includes this wall or an outer layer thereof, then it can effectively and inexpensively protect the element against chemical attack metal halides coming into contact with this element, in particular the zinc chloride, zinc iodide, copper chloride or calcium chloride.
- the element has this wall or at least one outer layer thereof which comprises a thermoplastic composition based on at least one polyamide comprising at least one polymer chain comprising functional groups at its two ends and, according to invention, said at least one polyamide is selected from the group consisting of PA 6, PA 6.6 and mixtures thereof, the composition comprising the product of a reaction of at least one bifunctional or multifunctional chain extender compound with at least one part of these functional groups, the element being able to withstand without breakage prolonged contact with a metal halide of an alkali metal, alkaline earth or transition.
- said wall or said at least one outer layer of said wall may consist (ie exclusively) of said thermoplastic composition, which is devoid of polyamide other than PA 6 and PA 6.6 such as PA 11, PA 12 and PA 6.12.
- the element may be a monolayer or multilayer extruded pipe that can be used in a circuit of said engine compartment chosen from air conditioning, power steering, fuel, water and air circuits.
- the element may be able to withstand said contact for a period of two days and at a temperature of 70 ° C. in a bath consisting of said metal halide in aqueous solution concentrated at 50% by weight of this halide, without exhibiting breakage after tensile deformation tests with relative tensile strains of 5%, 10% or even 50% or even 100% applied to the element.
- the element may be able to withstand said contact without breaking, cracking or altering its mechanical properties, in accordance with tests on H2-type test specimens (dumbbells) consisting of material plates which are described in paragraphs 6.2.1. and 7. the manufacturer's standard RENAULT D47 1924 / - C created in 1995 and modified in 2012.
- the modification according to the invention of an AP 6 and / or a PA 6.6 by said at least one enhancer of bifunctional or multifunctional chain can improve the resistance to chemical attack, aging and the mechanical properties of the element consisting in whole or in part of said composition, such as hydrolytic stability, resistance to stress cracking ("stress cracking ”) and impact resistance, among others.
- said at least one bifunctional or multifunctional compound may comprise one or more oligomers (s) with a number-average molecular mass M n of between 3,000 and 10,000 g / mol, which reacts or reacts with carboxylic functions. and / or amines and / or hydroxyls included in said functional groups and which is or are present in said composition in a total amount of this compound (s) equal to or greater than 0.3 part by weight per cent polyamide (s) PA 6 and / or PA 6.6 parts.
- said at least one compound comprises a bifunctional compound selected from the group consisting of bisoxazolines, bisepoxides (eg 2,6-dibenzalcyclohexanone bis-epoxide), polycarbodiimides, bisphenol diglycidyl ethers, blocked caprolactams diisocyanate, fluorenylmethanols, biscaprolactams, bisacyl lactams (eg TBCL and TBLL), dianhydrides (eg 3,3 ', 4,4'-benzophenone tetracarboxylic dianhydride or BTDA, and pyromellitic dianhydride) or PMDA), fluorenylmethylchloroformates, terephthaloylbislaurolactams and mixtures thereof, this or each bifunctional compound being present in said composition in an amount which may be between 0.3 and 3 parts by weight per hundred parts of polyamide (s) PA 6 and / or PA 6.6
- a bifunctional compound selected from
- said at least one bifunctional compound comprises in combination a bisoxazoline, preferably 2,2 '- (1,3-phenylene) bis (2-oxazoline) or 2,2' - ( 1,4-phenylene) bis (2-oxazoline), and a biscaprolactam, preferably 1,1'-isophthaloyl biscaprolactam.
- said at least one compound comprises a multifunctional compound selected from the group consisting of modified styrene-acrylate copolymers, modified polymers of styrene and acrylic acid. , styrene-maleic anhydride copolymers and mixtures thereof, this or each multifunctional compound that may be present in said composition in an amount ranging from 0.3 to 3 parts by weight per hundred parts of polyamide (s) PA 6 and / or PA 6.6.
- said at least one polyamide comprises a mixture of PA 6 and PA 6.6, the composition further comprising in this case at least one compatibilizing agent belonging to the family of copolymers of at least one olefin and of a methacrylate.
- said halide is a chloride or an iodide, said metal being selected from the group consisting of zinc, copper and calcium. Still more preferably, said metal halide is selected from the group consisting of zinc chloride, zinc iodide, copper chloride, calcium chloride and mixtures thereof.
- said outer wall may be at least partially covered with said metal halide, for example zinc chloride produced in the presence of a road salt (e.g. a de-icing salt) having entered said engine compartment.
- a road salt e.g. a de-icing salt
- a method of protection according to the invention of an element of an engine compartment of a motor vehicle, in particular a pipe, against chemical attacks of a metal halide, eg zinc chloride, zinc iodide , copper chloride or calcium chloride, coming into contact with the element, comprises a reactive extrusion reaction of at least one bifunctional or multifunctional chain extender compound with at least a portion of said functional groups of ends of a PA 6 and / or PA 6.6 that comprises said at least one polyamide.
- a metal halide eg zinc chloride, zinc iodide , copper chloride or calcium chloride
- this process may comprise the use, for said at least one compound, of the aforementioned oligomer (s) of molecular weight Mn between 3000 and 10000 g / mol, which is reacted (ssen). with carboxylic and / or amine and / or hydroxyl functions included in these functional groups and which is or are present in the composition in a total amount equal to or greater than 0.3 part by weight per hundred parts of polyamide ( s) PA 6 and / or PA 6.6.
- this process may comprise the use of a plurality of said bifunctional compounds including the aforementioned combination of a bisoxazoline and a biscaprolactam providing a synergistic effect.
- FIG. 1 is a schematic perspective view of an air conditioning circuit hose comprising a pipe element according to the invention
- FIG. 2 is a cross-sectional view along plane II-II of FIG. 1 of this pipe in the case where it is monolayer, and
- FIG. 3 is a schematic perspective view and severed of a multilayer pipe used according to a variant of the invention.
- control thermoplastic compositions and according to the invention were prepared by reactive extrusion in a co-rotating twin-screw extruder implemented at a temperature of about 265 ° C.
- compositions obtained can in particular be used in an extruded hose 1 of a hose inside a motor vehicle air conditioning circuit, such as the hose 2 illustrated in FIG.
- such a circuit is closed and comprises several elements which are distributed inside the engine compartment of the vehicle, in particular a compressor, a condenser, a desiccant tank, an expansion system and an evaporator, and in which circulates a Refrigerant. All these elements are connected by flexible 2 constituted by tubular elements or pipes 1 rigid and / or flexible, which have towards each of their ends a fastening element and sealing connection means 3.
- Each extruded pipe 1 is shaped in a three-dimensional configuration according to the path it must follow.
- the length of each pipe 1 is variable, knowing that it may have an inner diameter of the order of 4 to 12 mm and a thickness of about 0.8 to 3 mm, without limitation.
- the pipe 1 preferably has a single layer 1a constituted by a composition according to the invention, which thus comprises the product of a hot reactive extrusion reaction of an AP 6 and / or a PA 6.6 with at least one chain lengthening compound according to the invention.
- the pipe 10 comprises an outer layer 11 consisting of a composition according to the invention and, radially inwardly of the layer 11, a reinforcing layer 12 (eg textile or metal), a optional intermediate layer 13 and an inner layer 1 both polymeric and for example based on one or polyamide (s) identical (s) or different (s) from that or those of the outer layer 11.
- a reinforcing layer 12 eg textile or metal
- an optional intermediate layer 13 e.g textile or metal
- an inner layer 1 both polymeric and for example based on one or polyamide (s) identical (s) or different (s) from that or those of the outer layer 11.
- the amounts indicated in Tables 2 and 3 of tested formulations are parts by weight per 100 parts of PA 6 and / or PA 6.6.
- compositions whose polymeric matrix consisted of a compatibilized mixture of PA 6 and PA 6.6 in identical mass proportions and which included, on the one hand, a composition " control T2 without any chain extender compound and, on the other hand, compositions according to the invention 110 to 119 each comprising one, two, three or four chain-extending compounds reacted with this matrix PA 6 + PA 6.6, as visible in Table 3 below (it being specified that the compatibilizer Lotader AX8840 used for these compositions T2 and 110-119 is a random copolymer of ethylene and glycidyl methacrylate).
- these specimens H2 were previously subjected to a package of eight days to make PA 6 and / or PA 6.6 of these compositions sufficiently wet, and these test pieces H2 were subjected to tests according to paragraphs 6.2. .1. and 7. of the manufacturer's standard RENAULT D47 1924 / - C created in 1995 and modified in 2012.
- these specimens were immersed in a zinc chloride bath with the aid of a standard fitting of DRT ( ZnCl 2 ) in concentrated aqueous solution at 50% by weight for a period of 48 hours (with three test pieces per bath) and in an oven at 70 ° C.
- test specimens H2 consisting of compositions 11 to 119 according to the invention did not show any breakage or cracking after this aging in contact with zinc chloride, contrary to the specimens consisting of "control" compositions T1 and T2 which were cut at the end of the 5% and 10% relative strains used.
- compositions 13, 14, 17, 18, 113, 115 and 117 according to the invention which are characterized in that they comprise the combination of a bisoxazoline (1.3 PBO) and a biscaprolactam (IBC ) have surprisingly given the best results in terms of DRT tests following this contact with zinc chloride, thus testifying to a remarkable synergistic effect.
- a bisoxazoline 1.3 PBO
- IBC biscaprolactam
- compositions 11 to 19 and 110 to 119 according to the invention were generally preserved, or even improved in comparison with those of the "control" compositions T1 and T2, respectively.
- the following values (see Table 4) of breaking stress, elongation at break, threshold stress and modulus E were obtained for a new composition I20 according to the invention (based on a mixture PA 6 + PA 6.6 and 0.5 parts by weight of 1.3 PBO per 100 parts of PA 6 + PA 6.6) relative to the composition T2.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Alternative & Traditional Medicine (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016540512A JP2017502132A (ja) | 2013-12-19 | 2013-12-19 | 動力車のエンジンコンパートメントのエレメント、及びこのエレメントを金属ハロゲン化物による化学的攻撃に対して保護する方法 |
US15/105,322 US20160311386A1 (en) | 2013-12-19 | 2013-12-19 | Element of an engine compartment of a motor vehicle and method of protecting the element against chemical attacks from a metal halide |
EP13821698.1A EP3083245A1 (fr) | 2013-12-19 | 2013-12-19 | Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique |
PCT/FR2013/053193 WO2015092158A1 (fr) | 2013-12-19 | 2013-12-19 | Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique |
KR1020167017406A KR20160122120A (ko) | 2013-12-19 | 2013-12-19 | 동력 차량의 엔진 구획의 요소 및 이 요소를 금속 할라이드로부터의 화학적 공격으로부터 보호하는 방법 |
ARP140104812A AR098877A1 (es) | 2013-12-19 | 2014-12-19 | Elemento del compartimiento del motor de un vehículo automóvil y procedimiento de protección del elemento contra las agresiones químicas de un halogenuro metálico |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2013/053193 WO2015092158A1 (fr) | 2013-12-19 | 2013-12-19 | Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique |
Publications (1)
Publication Number | Publication Date |
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WO2015092158A1 true WO2015092158A1 (fr) | 2015-06-25 |
Family
ID=49989848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2013/053193 WO2015092158A1 (fr) | 2013-12-19 | 2013-12-19 | Élément d'un compartiment moteur d'un véhicule automobile et procédé de protection de l'élément contre des agressions chimiques d'un halogénure métallique |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160311386A1 (fr) |
EP (1) | EP3083245A1 (fr) |
JP (1) | JP2017502132A (fr) |
KR (1) | KR20160122120A (fr) |
AR (1) | AR098877A1 (fr) |
WO (1) | WO2015092158A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114410109B (zh) * | 2022-02-23 | 2022-10-14 | 上海聚威新材料股份有限公司 | 一种挤出且耐低温弯折的脂肪族长碳链尼龙复合材料及其制备方法 |
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WO2004023026A1 (fr) * | 2002-09-09 | 2004-03-18 | Titeflex Corporation | Construction de tuyau de transfert de fluide souple resistant aux coudes |
DE19655417B4 (de) * | 1995-11-02 | 2008-11-20 | The Yokohama Rubber Co., Ltd. | Thermoplastische Elastomerzusammensetzung und Verfahren zu deren Herstellung, sowie Verwendung der Zusammensetzung für einen Schlauch mit niedriger Permeabilität |
US7579058B2 (en) | 2006-03-14 | 2009-08-25 | Degussa Gmbh | Air brake line |
EP2098566A1 (fr) * | 2008-03-04 | 2009-09-09 | Lanxess Deutschland GmbH | Compositions pouvant être mises en réseau, élastomères thermoplastiques ainsi obtenues et leur utilisation |
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JPS57131245A (en) * | 1981-02-06 | 1982-08-14 | Toray Ind Inc | Polyamide resin composition for molding |
JPH0623307B2 (ja) * | 1987-03-30 | 1994-03-30 | 帝人株式会社 | 樹脂組成物 |
JPS63265964A (ja) * | 1987-04-24 | 1988-11-02 | Polyplastics Co | 樹脂組成物 |
JPH01132665A (ja) * | 1987-11-18 | 1989-05-25 | Toyobo Co Ltd | 自動車用アンダーフード部品 |
JPH0718178A (ja) * | 1993-07-05 | 1995-01-20 | Toray Ind Inc | 自動車用アンダーフード部品 |
JPH083441A (ja) * | 1994-06-27 | 1996-01-09 | Teijin Ltd | ポリアミド成形体の製造方法 |
JPH0827378A (ja) * | 1994-07-15 | 1996-01-30 | Teijin Ltd | ポリアミド成形体の製造方法 |
JP4026205B2 (ja) * | 1996-11-08 | 2007-12-26 | 東レ株式会社 | 熱可塑性樹脂多層管状体およびその用途 |
KR100438487B1 (ko) * | 1996-11-08 | 2004-08-18 | 도레이 가부시끼가이샤 | 다층성형품및폴리페닐렌설파이드수지조성물 |
US6485806B1 (en) * | 1996-11-08 | 2002-11-26 | Toray Industries, Inc. | Laminate containing a layer composed of polyphenylene sulfide blended with other polymers |
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US20060016499A1 (en) * | 2003-09-05 | 2006-01-26 | Blanchard Ralph T | Flexible, kink resistant, fluid transfer hose construction |
US7801223B2 (en) * | 2006-07-27 | 2010-09-21 | Lsi Corporation | Method for video decoder memory reduction |
JP4683154B2 (ja) * | 2009-08-12 | 2011-05-11 | 横浜ゴム株式会社 | 冷媒移送用ホース |
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2013
- 2013-12-19 KR KR1020167017406A patent/KR20160122120A/ko not_active Application Discontinuation
- 2013-12-19 EP EP13821698.1A patent/EP3083245A1/fr not_active Withdrawn
- 2013-12-19 US US15/105,322 patent/US20160311386A1/en not_active Abandoned
- 2013-12-19 JP JP2016540512A patent/JP2017502132A/ja active Pending
- 2013-12-19 WO PCT/FR2013/053193 patent/WO2015092158A1/fr active Application Filing
-
2014
- 2014-12-19 AR ARP140104812A patent/AR098877A1/es unknown
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DE19655417B4 (de) * | 1995-11-02 | 2008-11-20 | The Yokohama Rubber Co., Ltd. | Thermoplastische Elastomerzusammensetzung und Verfahren zu deren Herstellung, sowie Verwendung der Zusammensetzung für einen Schlauch mit niedriger Permeabilität |
WO2004023026A1 (fr) * | 2002-09-09 | 2004-03-18 | Titeflex Corporation | Construction de tuyau de transfert de fluide souple resistant aux coudes |
US7579058B2 (en) | 2006-03-14 | 2009-08-25 | Degussa Gmbh | Air brake line |
EP2098566A1 (fr) * | 2008-03-04 | 2009-09-09 | Lanxess Deutschland GmbH | Compositions pouvant être mises en réseau, élastomères thermoplastiques ainsi obtenues et leur utilisation |
EP2687554A1 (fr) * | 2012-07-18 | 2014-01-22 | Ems-Patent Ag | Procédé de fabrication d'un polyamide de moulage, et article moulé préparé à partir du composé de moulage en polyamide, et son utilisation comme intermédiaires pour véhicules à moteur en contact avec les gaz d'échappement |
Also Published As
Publication number | Publication date |
---|---|
EP3083245A1 (fr) | 2016-10-26 |
AR098877A1 (es) | 2016-06-22 |
US20160311386A1 (en) | 2016-10-27 |
JP2017502132A (ja) | 2017-01-19 |
KR20160122120A (ko) | 2016-10-21 |
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