CN203110417U - Fuel container - Google Patents
Fuel container Download PDFInfo
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- CN203110417U CN203110417U CN 201320071354 CN201320071354U CN203110417U CN 203110417 U CN203110417 U CN 203110417U CN 201320071354 CN201320071354 CN 201320071354 CN 201320071354 U CN201320071354 U CN 201320071354U CN 203110417 U CN203110417 U CN 203110417U
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Abstract
The utility model provides a fuel container and particularly provides a fuel container with excellent barrier property and mechanical strength. The main body of the fuel container is a multilayer structural body; and the middle layer of the multilayer structural body is an ethylene-vinyl alcohol copolymer layer (3). As the ethylene-vinyl alcohol copolymer layer is additionally arranged in the fuel container, the situation that ingredients of fuels such as gasoline volatilize into the air from the fuel container to influence environment can be greatly improved.
Description
Technical field
The utility model relates to a kind of fuel container, relates in particular to a kind of barrier of the propellant composition for inside and the fuel container of mechanical strength excellence.
Background technology
In recent years, be the fuel container of representative with the automobile fuel container, consider from aspects such as lightweight, rust-preventing characteristic, easy-formation processability, recovery property, carry out being turned to by metal fuel container processed the practicability of thermoplastic resin fuel container processed just energetically.
But the fuel container of being made by plastics (particularly high density polyethylene (HDPE)) has following shortcoming, and the gasoline gas of preserving in the fuel container or liquid see through the polyethylene wall volatilization of container easily, thereby influence environment.
Therefore, consider to use barrier resin (for example ethylene-vinyl alcohol copolymer etc.) to replace high density polyethylene (HDPE).But, though can solve the problem that gasoline sees through volatilization in this case, can not satisfy requirements such as the mechanical strength of fuel container and resistance to impact.
Therefore, must develop a kind of have good gasoline barrier and the fuel container of mechanical strength.
The utility model content
The utility model proposes in order to address the above problem, and its purpose is to provide the fuel container of a kind of barrier and mechanical strength excellence.
For realizing this purpose, fuel container of the present utility model, its main body is multilayer structure making, the intermediate layer of described multilayer structure making is evoh layer (evoh layer) 3.
Here, preferably described multilayer structure making constitutes by 5 layers, comprises one deck evoh layer 3, two-layer bonded resin bed 2 and two-layer high-density polyethylene layer (HDPE layer) 1.
Here, preferably described multilayer structure making constitutes by 6 layers, comprises recovery layer 4, two-layer bonded resin bed 2 and two-layer HDPE layer 1 that the pulverizing material of one deck evoh layer 3, one deck leftover pieces in being produced by moulding forms.
Here, preferably described multilayer structure making constitutes by 7 layers, comprises one deck evoh layer 3, two-layer recovery layer 4, two-layer bonded resin bed 2 and the two-layer HDPE layer 1 that is formed by the pulverizing material of the leftover pieces in the moulding production.
Further, described two-layer HDPE layer 1 is the innermost layer HDPE layer 1a of the innermost layer that is positioned at described multilayer structure making and the outermost outermost layer HDPE layer 1b that is positioned at described multilayer structure making; Dispose one deck adhering resin layer 2a between described one deck evoh layer 3 and the described innermost layer HDPE layer 1a, dispose another layer adhering resin layer 2b between described one deck evoh layer 3 and the outermost layer HDPE layer 1b.
Wherein, the thickness of described evoh layer 3 is 0.03-0.5mm, and the thickness of described adhering resin layer 2 is 0.03-0.3mm, and the thickness of described HDPE layer 1 is 0.2-4mm.Further, described two-layer HDPE layer 1 is the innermost layer HDPE layer 1a of the innermost layer that is positioned at described multilayer structure making and the outermost outermost layer HDPE layer 1b that is positioned at described multilayer structure making; Dispose one deck adhering resin layer 2a between described one deck evoh layer 3 and the described innermost layer HDPE layer 1a, dispose another layer adhering resin layer 2b between described one deck evoh layer 3 and the described outermost layer HDPE layer 1b; Dispose one deck recovery layer 4 between described outermost layer HDPE layer 1b and another layer adhering resin layer 2b.
Wherein, the thickness of described evoh layer 3 is 0.03-0.5mm, and the thickness of described adhering resin layer 2 is 0.03-0.3mm, and the thickness of described outermost layer HDPE layer 1b is 0.2-4mm, the thickness of described innermost layer HDPE layer 1a is 0.3-4mm, and the thickness of described recovery layer 4 is 0.5-4mm.
Further, described two-layer HDPE layer 1 is the innermost layer HDPE layer 1a of the innermost layer that is positioned at described multilayer structure making and the outermost outermost layer HDPE layer 1b that is positioned at described multilayer structure making; The outside recovery layer 4b of described two-layer recovery layer 4 for being positioned at the inboard recovery layer 4a of described one deck evoh layer 3 inboards and being positioned at described one deck evoh layer 3 outsides; Dispose one deck adhering resin layer 2a between described one deck evoh layer 3 and the described inboard recovery layer 4a, dispose another layer adhering resin layer 2b between described one deck evoh layer 3 and the described outside recovery layer 4b.
Wherein, the thickness of described evoh layer 3 is 0.03-0.5mm, and the thickness of described adhering resin layer 2 is 0.03-0.3mm, and the thickness of described outermost layer HDPE layer 1b is 0.2-4mm, the thickness of described innermost layer HDPE layer 1a is 0.3-4mm, and the thickness of described recovery layer 4 is 0.2-4mm.Fuel container of the present utility model contains EVOH by making in the fuel container, can reduce gasolene ingredient seeing through and volatilization from the fuel container main body significantly.
Fuel container of the present utility model has strengthened the mechanical strength of fuel container main body by using HDPE layer, adhering resin layer and recovery layer.
Description of drawings
Fig. 1 is a fuel container example of the present utility model.
Fig. 2 is that the fuel container of Fig. 1 is along the cross-sectional view of A-A.
Fig. 3 is the cross-sectional view of the fuel container of another embodiment of the present utility model.
Fig. 4 is the cross-sectional view of the fuel container of another embodiment of the present utility model.
Among the figure, 1 is the HDPE layer, and 2 is the adhering resin layer, and 3 is evoh layer, and 4 is recovery layer a, and 1b is outermost layer HDPE layer, and 4b is outside recovery layer, and 2b is the adhering resin layer, and 2a is the adhering resin layer, and 4a is inboard recovery layer, and 1a is innermost layer HDPE layer.
The specific embodiment
Below will describe fuel container of the present utility model in detail.
The high density polyethylene (HDPE) that uses in the utility model (HDPE), acid and alkali-resistance, organic solvent-resistant, electrical insulating property is good, during low temperature, still can keep certain toughness.Case hardness, hot strength, mechanical strengths such as rigidity all are higher than low density polyethylene (LDPE).
The ethylene-vinyl alcohol copolymer that uses in the utility model (EVOH) has good gas-barrier properties, oil resistivity, organic solvent resistance.
The adhering resin that uses in the utility model, so long as can get final product by the resin that each interlayer is bonding, particular restriction can preferably not adopt carboxyl acid modified vistanex etc.Carboxyl acid modified vistanex is to contain unsaturated carboxylic acid or its acid anhydride (maleic anhydride etc.) olefin polymer or the copolymer as copolymer composition; Or make the graft copolymer of unsaturated carboxylic acid or its acid anhydride grafting gained on olefin polymer or copolymer.
A large amount of when producing fuel container of the present utility model, it is difficult reaching 100% yield rate, inevitably produces underproof product.The leftover pieces that underproof product and finishing product periphery produce during shaping can melt extrude through pulverizing the input extruder again, as recovery layer.By using above-mentioned recovery layer, can reduce the consumption of using resin when container is made, improve recycling.
In the utility model, so-called thickness is the thickness of container body part.
Fuel container of the present utility model, its main body are multilayer structure making, and the intermediate layer of this multilayer structure making is evoh layer.Here, so-called intermediate layer refers to except the outermost layer of multilayer fuel container and the layer the innermost layer.In the fuel container of the present utility model, must comprise evoh layer.Evoh layer can intercept gas.
Preferably, in the fuel container of the present utility model, this multilayer structure making constitutes by 5 layers, comprises one deck evoh layer, two-layer bonded resin bed and two-layer HDPE layer.Use high density polyethylene (HDPE) can make the outermost layer of fuel container main body obtain enough mechanical strengths.
Preferably, in the fuel container of the present utility model, this multilayer structure making constitutes by 6 layers, comprises one deck evoh layer, one deck recovery layer, two-layer bonded resin bed and two-layer HDPE layer.
Preferably, in the fuel container of the present utility model, this multilayer structure making constitutes by 7 layers, comprises one deck evoh layer, two-layer recovery layer, two-layer bonded resin bed and two-layer HDPE layer.
Further, two-layer HDPE layer is to be positioned at the innermost layer HDPE layer of innermost layer of described multilayer structure making and the outermost outermost layer HDPE layer that is positioned at described multilayer structure making; Dispose one deck adhering resin layer between one deck evoh layer and the innermost layer HDPE layer, dispose another layer adhering resin layer between one deck evoh layer and the outermost layer HDPE layer.
Wherein, the thickness of evoh layer is 0.03-0.5mm, and the thickness of adhering resin layer is 0.03-0.3mm, and the thickness of HDPE layer is 0.2-4mm.
Preferably, when the volume of fuel container during greater than 10L, the thickness of evoh layer is 0.05-0.2mm, and the thickness of adhering resin layer is 0.05-0.2mm, and the thickness of innermost layer HDPE layer is 1-4mm, and the thickness of outermost layer HDPE layer is 0.5-3mm.
Preferably, when the volume of fuel container during smaller or equal to 10L, the thickness of evoh layer is 0.05-0.2mm, and the thickness of adhering resin layer is 0.05-0.2mm, and the thickness of HDPE layer is 0.5-2mm.
Further, dispose one deck recovery layer between outermost layer HDPE layer and another layer adhering resin layer.
Wherein, the thickness of evoh layer is 0.03-0.5mm, and the thickness of adhering resin layer is 0.03-0.3mm, and the thickness of outermost layer HDPE layer is 0.2-4mm, and the thickness of innermost layer HDPE layer is 0.3-4mm, and the thickness of recovery layer is 0.5-4mm.
Further, two-layer HDPE layer is to be positioned at the innermost layer HDPE layer of innermost layer of described multilayer structure making and the outermost outermost layer HDPE layer that is positioned at described multilayer structure making; Two-layer recovery layer is the outside recovery layer that is positioned at the inboard recovery layer of one deck evoh layer inboard and is positioned at one deck evoh layer outside; Dispose one deck adhering resin layer between one deck evoh layer and the inboard recovery layer, dispose another layer adhering resin layer between one deck evoh layer and the outside recovery layer.
Wherein, the thickness of evoh layer is 0.03-0.5mm, and the thickness of adhering resin layer is 0.03-0.3mm, and the thickness of outermost layer HDPE layer is 0.2-4mm, and the thickness of innermost layer HDPE layer is 0.3-4mm, and the thickness of recovery layer is 0.2-4mm.
Preferably, when the volume of fuel container during greater than 10L, the thickness of evoh layer is 0.05-0.2mm, the thickness of adhering resin layer is 0.05-0.2mm, the thickness of outermost layer HDPE layer is 0.5-2mm, and the thickness of innermost layer HDPE layer is 1-2mm, and the thickness of recovery layer is 0.5-3mm.
Preferably, when the volume of fuel container during smaller or equal to 10L, the thickness of evoh layer is 0.05-0.2mm, the thickness of adhering resin layer is 0.05-0.2mm, the thickness of outermost layer HDPE layer is 0.5-1mm, and the thickness of innermost layer HDPE layer is 1-2mm, and the thickness of recovery layer is 0.5-1.5mm.
Recovery layer for the sandwich construction that is constituted by HDPE layer, evoh layer and adhering resin layer pulverize after the resulting resin of fusion again.The bad mechanical strength of the general most layer that constitutes than single resin of this recovery layer.Therefore, the recovery layer preferred disposition is between adhering resin layer and HDPE layer.
The shape of fuel container of the present utility model does not have special restriction, can exemplify square, circular, oval fuel container.
As the method that obtains multilayer structure making, generally adopt the coextrusion mold method.As the coextrusion mold method, comprise co-extrusion sheet forming method, co-extrusion hollow blow molding method etc.
Specify the example of fuel container of the present utility model below in conjunction with accompanying drawing.
Fig. 1-4 illustrates the preferred embodiment of fuel container of the present utility model.
Fig. 1 illustrates the example of the fuel container of one of the utility model.
Fig. 2 illustrates Fig. 1 fuel container along the cross-sectional view of A-A.Among Fig. 2, fuel container of the present utility model, its main body is multilayer structure making, this multilayer structure making constitutes by five layers, has two layers of HDPE layer, two layers of adhering resin layer and one deck evoh layer.To innermost layer, be followed successively by outermost layer HDPE layer 1b, adhering resin layer 2b, evoh layer 3, adhering resin layer 2a and innermost layer HDPE layer 1a by the outermost layer of this multilayer structure making.The thickness of evoh layer 3 is 0.03-0.5mm, and the thickness of adhering resin layer 2 is 0.03-0.3mm, and the thickness of HDPE layer 1 is 0.2-4mm.
Among Fig. 3, fuel container of the present utility model, its main body is multilayer structure making, this multilayer structure making constitutes by six layers, has two layers of HDPE layer, two layers of adhering resin layer, one deck recovery layer and one deck evoh layer.To innermost layer, be followed successively by outermost layer HDPE layer 1b, recovery layer 4, adhering resin layer 2b, evoh layer 3, adhering resin layer 2a and innermost layer HDPE layer 1a by the outermost layer of this multilayer structure making.The thickness of evoh layer 3 is 0.03-0.5mm, and the thickness of adhering resin layer 2 is 0.03-0.3mm, and the thickness of outermost layer HDPE layer 1b is 0.2-4mm, and the thickness of innermost layer HDPE layer 1a is 0.3-4mm, and the thickness of recovery layer 4 is 0.5-4mm.
Among Fig. 4, fuel container of the present utility model, its main body is multilayer structure making, this multilayer structure making constitutes by seven layers, has two layers of HDPE layer, two layers of adhering resin layer, two layers of recovery layer and one deck evoh layer.To innermost layer, be followed successively by outermost layer HDPE layer 1b, outside recovery layer 4b, adhering resin layer 2b, evoh layer 3, adhering resin layer 2a, inboard recovery layer 4a and innermost layer HDPE layer 1a by the outermost layer of this multilayer structure making.The thickness of evoh layer 3 is 0.03-0.5mm, and the thickness of adhering resin layer 2 is 0.03-0.3mm, and the thickness of outermost layer HDPE layer 1b is 0.2-4mm, and the thickness of innermost layer HDPE layer 1a is 0.3-4mm, and the thickness of recovery layer 4 is 0.2-4mm.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; it should be understood by one skilled in the art that; under the situation that does not break away from the spirit and scope that claims limit; can make many modifications, variation or equivalent process, but all will fall in the protection domain of the present utility model.
Claims (10)
1. fuel container, its main body is multilayer structure making, it is characterized in that, the intermediate layer of described multilayer structure making is evoh layer (3).
2. fuel container according to claim 1 is characterized in that, described multilayer structure making constitutes by five layers, comprises one deck evoh layer (3), two-layer bonded resin bed (2) and two-layer high-density polyethylene layer (1).
3. fuel container according to claim 1, it is characterized in that, described multilayer structure making constitutes by six layers, comprises recovery layer (4), two-layer bonded resin bed (2) and two-layer high-density polyethylene layer (1) that the pulverizing material of one deck evoh layer (3), one deck leftover pieces in being produced by moulding forms.
4. fuel container according to claim 1, it is characterized in that, described multilayer structure making constitutes by seven layers, comprises one deck evoh layer (3), two-layer recovery layer (4), two-layer bonded resin bed (2) and the two-layer high-density polyethylene layer (1) that is formed by the pulverizing material of the leftover pieces in the moulding production.
5. fuel container according to claim 2, it is characterized in that described two-layer high-density polyethylene layer (1) is the innermost layer high-density polyethylene layer (1a) of innermost layer that is positioned at described multilayer structure making and the outermost outermost layer high-density polyethylene layer (1b) that is positioned at described multilayer structure making; Dispose one deck adhering resin layer (2a) between described one deck evoh layer (3) and the described innermost layer high-density polyethylene layer (1a), dispose another layer adhering resin layer (2b) between described one deck evoh layer (3) and the outermost layer high-density polyethylene layer (1b).
6. fuel container according to claim 5, it is characterized in that, the thickness of described evoh layer (3) is 0.03-0.5mm, and the thickness of described adhering resin layer (2) is 0.03-0.3mm, and the thickness of described high-density polyethylene layer (1) is 0.2-4mm.
7. fuel container according to claim 3, it is characterized in that described two-layer high-density polyethylene layer (1) is the innermost layer high-density polyethylene layer (1a) of innermost layer that is positioned at described multilayer structure making and the outermost outermost layer high-density polyethylene layer (1b) that is positioned at described multilayer structure making; Dispose one deck adhering resin layer (2a) between described one deck evoh layer (3) and the described innermost layer high-density polyethylene layer (1a), dispose another layer adhering resin layer (2b) between described one deck evoh layer (3) and the described outermost layer high-density polyethylene layer (1b); Dispose one deck recovery layer (4) between described outermost layer high-density polyethylene layer (1b) and another layer adhering resin layer (2b).
8. fuel container according to claim 7, it is characterized in that, the thickness of described evoh layer (3) is 0.03-0.5mm, the thickness of described adhering resin layer (2) is 0.03-0.3mm, the thickness of described outermost layer high-density polyethylene layer (1) is 0.2-4mm, the thickness of described innermost layer high-density polyethylene layer (1) is 0.3-4mm, and the thickness of described recovery layer (4) is 0.5-4mm.
9. fuel container according to claim 4, it is characterized in that described two-layer high-density polyethylene layer (1) is the innermost layer high-density polyethylene layer (1a) of innermost layer that is positioned at described multilayer structure making and the outermost outermost layer high-density polyethylene layer (1b) that is positioned at described multilayer structure making; The outside recovery layer (4b) of described two-layer recovery layer (4) for being positioned at the inboard inboard recovery layer (4a) of described one deck evoh layer (3) and being positioned at described one deck evoh layer (3) outside; Dispose one deck adhering resin layer (2a) between described one deck evoh layer (3) and the described inboard recovery layer (4a), dispose another layer adhering resin layer (2b) between described one deck evoh layer (3) and the described outside recovery layer (4b).
10. fuel container according to claim 9, it is characterized in that, the thickness of described evoh layer (3) is 0.03-0.5mm, the thickness of described adhering resin layer (2) is 0.03-0.3mm, the thickness of described outermost layer high-density polyethylene layer (1) is 0.2-4mm, the thickness of described innermost layer high-density polyethylene layer (1) is 0.3-4mm, and the thickness of described recovery layer (4) is 0.2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071354 CN203110417U (en) | 2013-02-07 | 2013-02-07 | Fuel container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071354 CN203110417U (en) | 2013-02-07 | 2013-02-07 | Fuel container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110417U true CN203110417U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071354 Expired - Lifetime CN203110417U (en) | 2013-02-07 | 2013-02-07 | Fuel container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110417U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385610A (en) * | 2014-10-11 | 2015-03-04 | 亚普汽车部件股份有限公司 | Molding method of three-dimensional multi-wall plastic hollow casing |
| CN105333300A (en) * | 2014-08-06 | 2016-02-17 | 中国石油化工股份有限公司 | Gas storage tank inner container, gas storage tank and manufacturing methods of gas storage tank inner container and gas storage tank |
| CN109415133A (en) * | 2016-06-30 | 2019-03-01 | 株式会社可乐丽 | Fuel container |
-
2013
- 2013-02-07 CN CN 201320071354 patent/CN203110417U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333300A (en) * | 2014-08-06 | 2016-02-17 | 中国石油化工股份有限公司 | Gas storage tank inner container, gas storage tank and manufacturing methods of gas storage tank inner container and gas storage tank |
| CN104385610A (en) * | 2014-10-11 | 2015-03-04 | 亚普汽车部件股份有限公司 | Molding method of three-dimensional multi-wall plastic hollow casing |
| CN104385610B (en) * | 2014-10-11 | 2017-07-04 | 亚普汽车部件股份有限公司 | A kind of forming method of three-dimensional many wall plastic hollow casings |
| CN109415133A (en) * | 2016-06-30 | 2019-03-01 | 株式会社可乐丽 | Fuel container |
| CN109415133B (en) * | 2016-06-30 | 2019-09-17 | 株式会社可乐丽 | Fuel container |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
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| CX01 | Expiry of patent term |