CN102072368A - Antistatic automobile multilayer pipe for transmitting fuel oil - Google Patents
Antistatic automobile multilayer pipe for transmitting fuel oil Download PDFInfo
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- CN102072368A CN102072368A CN 201110006490 CN201110006490A CN102072368A CN 102072368 A CN102072368 A CN 102072368A CN 201110006490 CN201110006490 CN 201110006490 CN 201110006490 A CN201110006490 A CN 201110006490A CN 102072368 A CN102072368 A CN 102072368A
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Abstract
The invention relates to an antistatic automobile multilayer pipe for transmitting fuel oil. A five-layer composite structure is adopted and comprises a polyamide 612 outer layer, an adhesive layer, a blocking layer, an adhesive layer and a conductive polyamide 12 inner layer from inside to outside in the radial direction. The thickness of the outer layer is 0.4 to 0.45 millimeter, the thickness of the adhesive layers is 0.1 to 0.12 millimeter, the thickness of the blocking layer is 0.1 to 0.15 millimeter, and the thickness of the inner layer is 0.2 to 0.25 millimeter. The rubber pipe has excellent high temperature resistance, seepage resistance, conductive performance and impact resistance. One-time molding of a co-extrusion process is adopted in the production process; and the pipe is environmentally-friendly, saves the cost, has environmentally-friendly and economic significance, and has high application potential.
Description
Technical field
The present invention relates to the automobile oil pipe technical field, particularly a kind of automobile multi-layer oil tube that is used for anlistatig co-extrusion removing from mould.
Background technique
In vehicle traveling process, in the pipe-line system that connects motor and mailbox, circulating of fuel oil high speed, in some cases, friction between automobile fuel oil and the transport pipe inwall can produce static charge and then may produce Mars, cause more serious consequence, so, the volume resistivity of inner tube material need be limited in 10 usually
6Below the Ω cm.Simultaneously, in the car load design, because the engine compartment thermal radiation is increasing, to the heat-resisting requirement raising of oil-fired system.
Based on the reason of safety and environmental protection, the automaker requires transport pipe to have favorable mechanical performance, good impact resistance, high and low temperature resistance and excellent prevention fuel oil penetrability simultaneously.Traditional individual layer polyamide 11 or polyamide 12 and double-deck pipeline resistance to heat lower (long-time heat resisting temperature is 125 ℃), retardance fuel oil penetrability is lower, be unfavorable for reducing the discharging of hydrocarbon, and individual layer polyamide pipeline can't realize that internal surface is that conduction state prevents that static from causing the generation of Mars phenomenon.
Summary of the invention
The purpose of this invention is to provide and a kind ofly have excellent mechanical property, excellent high and low temperature resistance (40 ℃～150 ℃), the penetrability of very low fuel oil and the polyamide multilayer fuel pipe of antistatic are arranged.
Technological scheme of the present invention is as follows:
The present invention adopts five layers of composite structure radial direction from inside to outside to comprise: polyamide 6 12 (PA612) skin, adhesive layer, barrier layer, adhesive layer, electrically conductive polyamide 12 (PA12cond) internal layer.
Skin of the present invention is selected the PA612 material that can use for a long time for use under 150 ℃ of high temperature conditions, excellent shock resistance, and its cost is lower than multilayer tubing cladding material polyamide 12 (PA12) or the polyamide 11 (PA11) that generally uses.
Barrier layer of the present invention is ethylene-vinyl alcohol copolymer (EVOH) or polyvinylidene fluoride (PVDF).
Adhesive layer of the present invention is for being the modified polyamide binder of matrix with nylon 6 or nylon 66.The trade mark of VESTAMID is the binder of SX8002 in the preferred employing Degussa polyamide series.
Endothecium structure PA12 of the present invention, preferred volume specific resistance is less than 10
6The specification of Ω cm.
The external diameter of pipe of the present invention is selected according to the each several part needs of automobile, and each layer thickness is as follows:
Wherein, PA612 outer layer thickness 0.4～0.45mm, preferred 0.4mm;
Thickness of adhibited layer is 0.1～0.12mm, preferred 0.1mm;
Barrier layer thickness is 0.1～0.15mm, preferred 0.15mm;
Internal layer conduction PA12 thickness 0.2～0.25mm, preferred 0.25mm.
Advantage of the present invention is that performance, electric conductivity, shock resistance are oozed in the resistance with outstanding high temperature resistance, excellence.Production process adopts the coextrusion processes disposal molding, and product environmental protection, saving cost have environmental protection and economic implications, and application potential is big.
Description of drawings
Fig. 1 is the sectional drawing of MULTILAYER COMPOSITE nylon tube;
Fig. 2 is a MULTILAYER COMPOSITE nylon tube profile.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
External diameter of the present invention is chosen to be 8mm, and wall thickness is 1mm.
Embodiment 1
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer EVOH (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.4mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.1mm; Barrier layer EVOH thickness is 0.15mm; Internal layer conduction PA12 thickness is 0.25mm.
Embodiment 2
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer EVOH (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.45mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.11mm; Barrier layer EVOH thickness is 0.13mm; Internal layer conduction PA12 thickness is 0.2mm.
Embodiment 3
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer EVOH (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.42mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.12mm; Barrier layer EVOH thickness is 0.1mm; Internal layer conduction PA12 thickness is 0.24mm.
Embodiment 4
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer PVDF (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.4mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.1mm; Barrier layer PVDF thickness is 0.15mm; Internal layer conduction PA12 thickness is 0.25mm.
Embodiment 5
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer PVDF (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.45mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.11mm; Barrier layer PVDF thickness is 0.13mm; Internal layer conduction PA12 thickness is 0.2mm.
Embodiment 6
Present embodiment is divided into 5 layers, and internal layer is PA12cond (1), adhesive layer VESTAMID SX8002 (2), barrier layer PVDF (3), adhesive layer VESTAMID SX8002 (2), outer PA612 (4).
Wherein, the PA612 outer layer thickness is 0.42mm; Adhesive layer is that the trade mark of VESTAMID in the Degussa polyamide series is SX8002, and thickness is 0.12mm; Barrier layer PVDF thickness is 0.1mm; Internal layer conduction PA12 thickness is 0.24mm.
Compare with traditional layer structure PA12 or PA11, the performance of PA612 is as shown in table 1, than other two kinds of polyamide materials, the resistance to high temperature excellence of PA612 (using the highest temperature can reach 165 ℃ for a long time), excellent shock resistance can be applicable to the impact strength that runs near the motor hot environment and the automobile running.
Table 1: each trade mark polyamide performance relatively
| Performance | PA612 | PA11 | PA12 | Electric conductivity PA12 |
| Fusing point ℃ | 220 | 186 | 178 | 176 |
| Heat distortion temperature ℃ | 82 | 54 | 55 | 62 |
| Heat resisting temperature ℃ | 165 | 125 | 125 | 137 |
| Cold-resistant temperature ℃ | -40 | -40 | -40 | -40 |
| Notched Izod impact strength kJ/m 2 | 5.5 | 7.8 | 5.6 | 5.5 |
| Tensile strength Mpa | 60 | 56 | 65 | 60 |
| Volume resistivity Ω cm | 1012 | 1013 | 1014 | 105 |
Fuel oil permeability of the present invention sees Table 2
Table 2: fuel oil permeability properties
By the above embodiments as can be seen, the present invention has made full use of excellent in resistance high temperature performance and the excellent impact resistance of PA612, is applied to the multilayer tubing layer structure, satisfies the requirement that motor improves the pipeline resistance to high temperature; Barrier material EVOH and conductivity type PA12 (volume resistivity＜10
6Ω cm) use, the resistance of having given prominence to the excellence of pipe-line system are more oozed the generation of static in ability (the fuel oil permeability meets the standard of Europe V less than 0.054g/day) and the prevention pipe-line system and the serious consequence that causes.
The present invention has excellent combination properties such as anti-fuel oil permeability, resistant of high or low temperature, impact resistance and electric conductivity.For improving environmental pollution and the safe driving environment has extremely obvious significance.
Claims (6)
1. an antistatic automobile multilayer tubing that is used to transmit fuel oil is characterized in that adopting five layers of composite structure, and radial direction from inside to outside is followed successively by: polyamide 6 12 skins, adhesive layer, barrier layer, adhesive layer, electrically conductive polyamide 12 internal layers.
2. multilayer tubing as claimed in claim 1 is characterized in that described barrier layer is ethylene-vinyl alcohol copolymer or polyvinylidene fluoride.
3. multilayer tubing as claimed in claim 1 is characterized in that described adhesive layer is for being the modified polyamide binder of matrix with nylon 6 or nylon 66.
4. multilayer tubing as claimed in claim 1 is characterized in that described electrically conductive polyamide 12 internal layers are that volume resistivity is less than 10
6Ω cm.
5. multilayer tubing as claimed in claim 1, it is characterized in that each layer thickness is: outer layer thickness 0.4～0.45mm, thickness of adhibited layer are 0.1～0.12mm, barrier layer thickness is 0.1～0.15mm, interior layer thickness 0.2～0.25mm.
6. multilayer tubing as claimed in claim 5 is characterized in that outer layer thickness 0.4mm, and thickness of adhibited layer is 0.1mm, and barrier layer thickness is 0.15mm, interior layer thickness 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110006490 CN102072368A (en) | 2011-01-13 | 2011-01-13 | Antistatic automobile multilayer pipe for transmitting fuel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110006490 CN102072368A (en) | 2011-01-13 | 2011-01-13 | Antistatic automobile multilayer pipe for transmitting fuel oil |
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| Publication Number | Publication Date |
|---|---|
| CN102072368A true CN102072368A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110006490 Pending CN102072368A (en) | 2011-01-13 | 2011-01-13 | Antistatic automobile multilayer pipe for transmitting fuel oil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278543A (en) * | 2011-07-04 | 2011-12-14 | 河北宏广橡塑金属制品有限公司 | Compressed natural gas pipe and manufacture method thereof |
| CN103358523A (en) * | 2012-03-30 | 2013-10-23 | 上海金湖挤出设备有限公司 | Co-extrusion head for five-layer screw-type pipe |
| CN110159842A (en) * | 2019-06-28 | 2019-08-23 | 扬州华光橡塑新材料有限公司 | A kind of MULTILAYER COMPOSITE fuel pipe |
| CN114508632A (en) * | 2022-03-09 | 2022-05-17 | 河北亚大汽车塑料制品有限公司 | High-flame-retardance multilayer fuel pipe and preparation method thereof |
| CN114851669A (en) * | 2022-04-01 | 2022-08-05 | 万华化学集团股份有限公司 | Interlayer cracking resistant nylon and fluoropolymer co-extruded automobile fuel conveying multilayer pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036967A1 (en) * | 1999-03-16 | 2000-09-20 | Elf Atochem S.A. | Antistatic pipe of polyamide for transporting fuel |
| US20020142118A1 (en) * | 2000-12-21 | 2002-10-03 | Degussa Ag | Composite having two or more layers, including an EVOH layer |
| CN1254362C (en) * | 2001-11-22 | 2006-05-03 | 阿托菲纳公司 | Conductive multilayer gasoline conveying pipe based on polymeric amide and EVOH |
| CN101600565A (en) * | 2006-11-30 | 2009-12-09 | 阿克马法国公司 | The purposes of sandwich construction in making air shooter namely for methane carrier pipe |
| CN101312824B (en) * | 2005-10-18 | 2010-09-29 | 阿克马法国公司 | Polyamide-based antistatic multilayer tube for transferring fluids |
-
2011
- 2011-01-13 CN CN 201110006490 patent/CN102072368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036967A1 (en) * | 1999-03-16 | 2000-09-20 | Elf Atochem S.A. | Antistatic pipe of polyamide for transporting fuel |
| US20020142118A1 (en) * | 2000-12-21 | 2002-10-03 | Degussa Ag | Composite having two or more layers, including an EVOH layer |
| CN1254362C (en) * | 2001-11-22 | 2006-05-03 | 阿托菲纳公司 | Conductive multilayer gasoline conveying pipe based on polymeric amide and EVOH |
| CN101312824B (en) * | 2005-10-18 | 2010-09-29 | 阿克马法国公司 | Polyamide-based antistatic multilayer tube for transferring fluids |
| CN101600565A (en) * | 2006-11-30 | 2009-12-09 | 阿克马法国公司 | The purposes of sandwich construction in making air shooter namely for methane carrier pipe |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278543A (en) * | 2011-07-04 | 2011-12-14 | 河北宏广橡塑金属制品有限公司 | Compressed natural gas pipe and manufacture method thereof |
| CN103358523A (en) * | 2012-03-30 | 2013-10-23 | 上海金湖挤出设备有限公司 | Co-extrusion head for five-layer screw-type pipe |
| CN103358523B (en) * | 2012-03-30 | 2016-03-09 | 上海金湖挤出设备有限公司 | A kind of five layer screw type pipe co-extrusion heads |
| CN110159842A (en) * | 2019-06-28 | 2019-08-23 | 扬州华光橡塑新材料有限公司 | A kind of MULTILAYER COMPOSITE fuel pipe |
| CN114508632A (en) * | 2022-03-09 | 2022-05-17 | 河北亚大汽车塑料制品有限公司 | High-flame-retardance multilayer fuel pipe and preparation method thereof |
| CN114851669A (en) * | 2022-04-01 | 2022-08-05 | 万华化学集团股份有限公司 | Interlayer cracking resistant nylon and fluoropolymer co-extruded automobile fuel conveying multilayer pipe |
| CN114851669B (en) * | 2022-04-01 | 2024-05-03 | 万华化学集团股份有限公司 | Nylon and fluoropolymer co-extrusion automobile fuel oil conveying multilayer pipe resistant to interlayer cracking |
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Application publication date: 20110525 |