CN101985992A - Biodiesel-resistant multilayered composite nylon tube - Google Patents
Biodiesel-resistant multilayered composite nylon tube Download PDFInfo
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- CN101985992A CN101985992A CN2010105538277A CN201010553827A CN101985992A CN 101985992 A CN101985992 A CN 101985992A CN 2010105538277 A CN2010105538277 A CN 2010105538277A CN 201010553827 A CN201010553827 A CN 201010553827A CN 101985992 A CN101985992 A CN 101985992A
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Abstract
The invention relates to a biodiesel-resistant multilayered composite nylon tube, which adopts a five-layered composite structure: i.e. an inner polyamide 1010 layer/a bonding layer/a barrier layer/another bonding layer/an outer polyamide layer from inside to outside in sequence. The barrier layer of the composite nylon tube is ethylene-vinyl alcohol copolymer or vinylidene chloride polymer. Polyamide 1010, polyamide 11 or polyamide 12 can be used for the outer nylon layer of the composite nylon tube. The biodiesel-resistant multilayered composite nylon tube has the advantages that: the use of polyamide 1010 for the inner layer structure of the nylon tube can lower the cost by about 10% compared with nylon raw materials of the same kind, the biodiesel resistance is superior, and the fuel leakage rate is smaller than 0.054g/day, reaching EURO V standard. The composite use of high-barrier plastic EVOH or PVDC and nylon material is free from pollution and advantageous for environmental pollution, and the bonding force of the barrier layer with nylon 1010 is larger than 30Mpa. With PA1010, PA11 and PA12 used for the outer layer structure, the nylon tube includes excellent impact resistance and pressure bearing property.
Description
Technical field
The present invention relates to a kind of MULTILAYER COMPOSITE nylon tube, particularly a kind of MULTILAYER COMPOSITE nylon tube that is mainly used in the hyposmosis of automobile biodiesel oil-fired system.
Background technique
In Europe, among the client of the main production firm of economy car as masses, Reynolds, Opel and Ford, almost there is half to need diesel-oil vehicle.And wherein biodiesel have the good feature of environmental protection, good low-temperature engine start function, preferably greasy property, good safety performance, good fuel performance, renewable performance, need not to change advantages such as motor, be accompanied by modern diesel engine and use the maturation of biodiesel fuel technology, the application trend of the worldwide automobile industry of biodiesel can further be accelerated.
Along with the rapid rising of China's car owning amount, a large amount of gasoline and diesel oil are consumed, and the discharge amount of pollutant is increasing in the vehicle exhaust, have become one of China's pollution of atmosphere important reasons.Several years of future was the epoch of Chinese Automobile Industry ' rapid development because the fuel cost that is risen steadily and the influence of environmental issue, the automobile biodieselization also is a developing direction of Chinese Automobile Industry '.
Carry the material of biodiesel pipeline structure generally to use rubber material at automobile at present, mainly contain following two kinds of structures:
1) internal layer: nitrile butadiene rubber (NBR), skin: hydrogenated nitrile-butadiene rubber (HNBR)
2) internal layer: fluorine rubber (FKM), skin: hydrogenated nitrile-butadiene rubber (HNBR)
Wherein: NBR has good pressure change but under the situation of heating, the moisture content that accumulates in the biodiesel causes that the auxiliary agent oxidation among the NBR makes the barrier Disability of NBR and causes that fuel spills outside the pipe, and the metal in the rubber material is separated out.Press though HNBR has that ability is oozed in good resistance and to become less.The FKM that contains metallic oxide is as endothecium structure, under the biodiesel high temperature condition, rubber pipe might be at oxidation and degradation bio-fuel-oil in expand, produce insoluble sludge fatty acid salt then and cause engine failure.
Described among the U.S.Pat.No.5798635 vitta structure by NBR as inner glue layer, HNBR is as outer glue-line.The effect of patent is for osmotic-pressure-tolerant that improves vitta structure and pressure-bearing property.But in actual use, the pressure of both compound back oil pipes becomes and all instabilities of ability are oozed in resistance, and long-term usability does not improve.
Summary of the invention
Reason for safety and environmental protection; fuel pipe should have good mechanical property simultaneously and have good resistance to ooze ability to fuel material oil; the present invention is oozed ability for the resistance that improves oil pipe and is remedied in the rubber hose deficiency that metal and fatty acid salt sludge are separated out in oxidized biodiesel, uses nylon material more environmental protection, lightweight to carry out the instead of rubber hose material.The present invention has more excellent osmotic-pressure-tolerant, corrosion resistance, impact resistance, combination property such as wear-resistant, and realize reducing cost, the social and economic significance of lightweight, environmental protection.
The present invention mainly provides a kind of novel nylon tube of anti-bio-fuel-oil that adopts coextrusion processes.
The structure of nylon fuel pipe provided by the invention has overcome above-mentioned nitrile butadiene rubber (NBR) and fluorine rubber (FKM) as endothecium structure, hydrogenated nitrile-butadiene rubber (HNBR) deficiency as the rubber hose of layer structure, and a kind of environmental protection, low cost, light-weighted novel fuel pipe more can brought into play is provided.
Technological scheme of the present invention is as follows:
The present invention adopts five layers of composite structure: by built-in outer internal layer polyamide 1010 (PA1010)/adhesive layer/barrier layer/adhesive layer/outer polyamide layer that is followed successively by.
Barrier layer of the present invention is ethylene-vinyl alcohol copolymer (EVOH) or vinylidene chloride polymer (PVDC).
Outer nylon layer of the present invention can use polyamide 1010 (PA1010), polyamide 11 (PA11) or polyamide 12 (PA12).
The invention has the beneficial effects as follows:
(1) adopt the endothecium structure of polyamide 1010 (PA1010) as nylon tube, lower by about 10% than the similar nylon cost of raw material, have excellent anti-biodiesel, the fuel oil permeability is less than 0.054g/day (reaching Euro V emissions).
(2) adopt high-barrier plastics EVOH or PVDC and the compound use of nylon material, pollution-free, be beneficial to environmental protection, and the bonding force of barrier layer and nylon 1010 is greater than 30Mpa.
(3) with PA1010, PA11, PA12 as the nylon tube layer structure, nylon tube has excellent in impact resistance, pressure-bearing property.
Adopt the coextrusion processes disposal molding in the production process of the present invention, product environmental protection, lightweight, high and low temperature resistance, shock resistance, load performance excellence, 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.
Among the figure, (1) polyamide 1010 (PA1010) internal layer, (2) adhesive layer, (3) barrier layer, (4) outer polyamide layer (PA1010 PA11 PA12)
Embodiment
Engage the drawings and specific embodiments below to further detailed explanation of the present invention.The structure of present embodiment is as depicted in figs. 1 and 2:
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer EVOH (3), adhesive layer (2), outer PA1010 (4).
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer PVDC (3), adhesive layer (2), outer PA1010 (4).
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer EVOH (3), adhesive layer (2), outer PA11 (4).
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer PVDC (3), adhesive layer (2), outer PA11 (4).
Embodiment 5
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer EVOH (3), adhesive layer (2), outer PA12 (4).
Embodiment 6
Present embodiment is divided into 5 layers, and internal layer is PA1010 (1), adhesive layer (2), barrier layer PVDC (3), adhesive layer (2), outer PA12 (4).
Each embodiment's testing property sees Table 1
Table 1: part combination property
By the above embodiments as can be seen, the present invention has made full use of the low advantage of the excellent performance of anti-biodiesel the, cost of PA1010, have the advantage of barrier material and PA11/PA12 concurrently, make the multilayer nylon tube after compound have excellent combination properties such as anti-biodiesel permeability, resistant of high or low temperature, impact resistance and pressure-bearing property.For improving environmental pollution extremely significantly social and economic significance is arranged.
Claims (3)
1. the type of anti-a biodiesel MULTILAYER COMPOSITE nylon tube is characterized in that by built-in outer being followed successively by: internal layer polyamide 1010/adhesive layer/barrier layer/adhesive layer/outer polyamide layer.
2. layer composite nylon pipe as claimed in claim 1 is characterized in that described barrier layer is ethylene-vinyl alcohol copolymer or vinylidene chloride polymer.
3. layer composite nylon pipe as claimed in claim 1 is characterized in that described outer polyamide layer is polyamide 1010, polyamide 11 or polyamide 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105538277A CN101985992A (en) | 2010-11-22 | 2010-11-22 | Biodiesel-resistant multilayered composite nylon tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105538277A CN101985992A (en) | 2010-11-22 | 2010-11-22 | Biodiesel-resistant multilayered composite nylon tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101985992A true CN101985992A (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105538277A Pending CN101985992A (en) | 2010-11-22 | 2010-11-22 | Biodiesel-resistant multilayered composite nylon tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405906A (en) * | 2015-03-20 | 2017-11-28 | 株式会社可乐丽 | Fuel conveying multilayer pipe and the fuel pump module and their application method for possessing the fuel conveying multilayer pipe |
| CN111022779A (en) * | 2019-12-25 | 2020-04-17 | 天津鹏翎集团股份有限公司 | Plastic cooling liquid water pipe and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366490A (en) * | 2000-06-09 | 2002-08-28 | Ems化学股份有限公司 | Thermoplastic multilayer composites |
| CN1557630A (en) * | 2003-02-28 | 2004-12-29 | ��ķ˹��ѧƷ����˾ | Thermoplastique hollow-shaped multilayer laminate |
| CN1640660A (en) * | 2003-12-12 | 2005-07-20 | 埃姆斯化学品有限公司 | Thermoplastic multilayer materials |
| WO2008038310A1 (en) * | 2006-09-26 | 2008-04-03 | Dytech-Dynamic Fluid Technologies S.P.A. | Multi-layer tube for conducting fuel in a motor vehicle |
-
2010
- 2010-11-22 CN CN2010105538277A patent/CN101985992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366490A (en) * | 2000-06-09 | 2002-08-28 | Ems化学股份有限公司 | Thermoplastic multilayer composites |
| CN1557630A (en) * | 2003-02-28 | 2004-12-29 | ��ķ˹��ѧƷ����˾ | Thermoplastique hollow-shaped multilayer laminate |
| CN1640660A (en) * | 2003-12-12 | 2005-07-20 | 埃姆斯化学品有限公司 | Thermoplastic multilayer materials |
| WO2008038310A1 (en) * | 2006-09-26 | 2008-04-03 | Dytech-Dynamic Fluid Technologies S.P.A. | Multi-layer tube for conducting fuel in a motor vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405906A (en) * | 2015-03-20 | 2017-11-28 | 株式会社可乐丽 | Fuel conveying multilayer pipe and the fuel pump module and their application method for possessing the fuel conveying multilayer pipe |
| CN111022779A (en) * | 2019-12-25 | 2020-04-17 | 天津鹏翎集团股份有限公司 | Plastic cooling liquid water pipe and preparation method thereof |
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Application publication date: 20110316 |