CN102558640B - Plastic fuel tank and preparation method thereof - Google Patents
Plastic fuel tank and preparation method thereof Download PDFInfo
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- CN102558640B CN102558640B CN201010610157.8A CN201010610157A CN102558640B CN 102558640 B CN102558640 B CN 102558640B CN 201010610157 A CN201010610157 A CN 201010610157A CN 102558640 B CN102558640 B CN 102558640B
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- fuel tank
- plastic fuel
- density polyethylene
- polymer fiber
- polyethylene resin
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Abstract
The invention relates to a plastic fuel tank and a preparation method thereof. The plastic fuel tank comprises the following raw materials in part by weight: 50 to 90 parts of high density polyethylene resin, 50 to 10 parts of blocking polymer fibers, and 0 to 10 parts of a compatilizer. The method comprises the following steps of: soaking the continuous blocking polymer fibers into the melt of the high density polyethylene resin, cooling the soaked continuous blocking polymer fibers, then cutting the continuous blocking polymer fibers into granules of corresponding length, feeding the granules into a hollow blow molding machine, performing blow molding, and thus obtaining the plastic fuel tank. Compared with the prior art, the plastic fuel tank has the advantages of good blocking property, simple process, low cost and the like.
Description
Technical field
The present invention relates to a kind of fuel tank and preparation method thereof, especially relate to a kind of preparation method of plastic fuel tank.
Background technology
Previous fuel tank of vehicle is mostly metal fuel tank.But because metal fuel tank exists a lot of defects at the aspect such as environmental protection, safety performance, cause thus the birth of plastic fuel tank.Plastic fuel tank has many-sided advantage:
(1) lightweight.The relative density of plastics is only 1/8～1/7 of metal, so compare with isometric metallic oil tank, its weight can reduce by 30%～50%, thereby has reduced the overall weight of automobile, has reduced oil consumption.
(2) corrosion-resistant.Because plastics have very strong resistance to chemical attack ability, therefore plastic fuel tank can be because corrosion produces some impurity, thereby can not cause impurity to enter by oil supply system the damage that engine causes engine, reduces its work-ing life.
(3) shape-designing degree of freedom is large.Along with complicated, the high-technicalization of Automobile Design, the space of automobile chassis is quite limited.Plastic fuel tank can mold complex-shaped special-shaped product, is conducive to make full use of the remaining space in body structure design, and increases as much as possible the volume of fuel tank, and this is that metal fuel tank is incomparable.
(4) good endurance.Because the material of plastic fuel tank is high molecular polymer, its chemical property is more stable, and therefore plastic fuel tank has longer work-ing life.
(5) safe.Can not explode because of thermal expansion.At present, most plastic fuel tank is all to adopt the polythene material manufacture of high molecular to form.The heat conductivity of this material is very low, is only 1% of metal.Simultaneously, High molecular weight polyethylene has good elasticity and rigidity, the in the situation that of-40 ℃ and+90 ℃, still can keep good mechanical property, resilience and can not produce tension set voluntarily after clashing into, in friction or knockout process, can not produce electrical spark simultaneously and cause an explosion accident, even if automobile catches fire accidentally, also can not blast because of plastic fuel tank expanded by heating, therefore plastic fuel tank has very high security.
(6) production efficiency is high, good in economic efficiency.Compared with metal fuel tank, the production technique of plastic fuel tank is easy, production efficiency is high, cost is low, the cycle is short, instant effect, has significant economic benefit.No matter many complicated product-formings all can once shaped, realize annex integrated.
There is the plurality of advantages that is different from metal fuel tank just because of plastic fuel tank, make plastic fuel tank alternative metals fuel tank become the main flow direction of current automobile industry development.The material of plastic fuel tank mainly contains following several:
(1) inwall carries out surface-treated monolayer plastic fuel tank, comprises epoxy spraying method, sulfonation (SO
3) facture, fluoridize (F
2) facture.Epoxy spraying method is comparatively backward, and effect is poor, is eliminated; Sulfonation facture and fluoridation method all will cause public hazards, cause environmental pollution, also should not adopt.
(2) plastic fuel tank of barrier resins and matrix resin blending and modifying.The mechanism of blending and modifying technology is: the barrier resins taking blocking effect is dispersed phase distribution in external phase matrix resin, barrier layer and matrix composition multilayered structure, make in container solvent molecule penetrate approach and become full of twists and turns, increase the length of approach, thereby increased the barrier property of container.In the blend course of processing, if barrier resins is not enough stretched, and be distributed in matrix resin with larger particles shape, or, barrier resins is fractured into particulate owing to being strong shearing, does not form sheet, and the barrier property of blend all can not get improving.
(3) plastic fuel tank of MULTILAYER COMPOSITE.Adopt multi-layer co-extruded technology, form three layers, five layers or six layers of compound hollow blow molding product by three kinds of materials.Consisting of of six layers of composite plastic fuel tank: HDPE (internal layer)/tack coat/barrier layer/tack coat/recovery bed of material/painted HDPE (skin).The plastic fuel tank moulding process of multi-layer compound structure is more complicated, requires special System of Hollow Blow Shaping Machine.
Summary of the invention
Object of the present invention is exactly to provide a kind of good barrier property in order to overcome the defect that above-mentioned prior art exists, and technique is simple, the preparation method of the plastic fuel tank that cost is low.
Object of the present invention can be achieved through the following technical solutions:
A kind of plastic fuel tank, is characterized in that, the raw material of this plastic fuel tank comprises following component and weight part content:
High-density polyethylene resin 50-90;
Separating polymer fiber 50-10;
Compatilizer 0-10.
Described high-density polyethylene resin comprises commercially available HDPE resin.
Described separating polymer fiber is the continuous filament yarn with the polymkeric substance of barrier property.
The melt temperature of described separating polymer fiber is greater than 240 ℃.
Described separating polymer fiber is selected from one or more in nylon 66 fiber (PA66), pet fiber (PET) or polyethylene naphthalate fiber (PEN).
Described compatilizer is maleic anhydride, glycidyl methacrylate or acrylic acid grafts or multipolymer.
Described compatilizer is maleic anhydride inoculated polypropylene or maleic anhydride grafted polyethylene.
A preparation method for plastic fuel tank, is characterized in that, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight part content:
High-density polyethylene resin 50-90,
Separating polymer fiber 50-10,
Compatilizer 0-10;
(2) by high-density polyethylene resin in 170～190 ℃ of meltings, obtain high-density polyethylene resin melt;
(3) melt impregnation through high-density polyethylene resin by continuous separating polymer fiber, then the pellet of respective length will be cut into after cooling the continuous separating polymer fiber infiltrating, pellet is sent in blow molding machine, obtained plastic fuel tank through blow molding.
Separating polymer fiber described in step (3) is drawn by creel, through tensioning roller adjustment of tonicity, enters melt impregnation die head, utilizes the melt of compatilizer and high-density polyethylene resin polymer fiber is disperseed and infiltrate in die head.
Compared with prior art, the polymkeric substance taking blocking effect in material of the present invention exists with fibers form all the time, because the temperature of high-density polyethylene resin melt do not sheared and control by separating polymer fiber in melt impregnation process, make separating polymer fiber in the matrix material making, not suffer damage and be dispersed in matrix resin, keep continuity and the dispersiveness of separating polymer fiber in pellet, also integrity and the homogeneity of separating polymer fiber in the fuel tank of blow molding have been guaranteed, therefore, will be because the existence of these separating polymer fibers is beset with resistance when fuel molecule passes oil tank wall, thereby reduce the fuel blow amount of fuel tank, improve the barrier property of fuel tank, the plastic fuel tank preparing has good barrier property, technique is simple, low cost and other advantages.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
A preparation method for plastic fuel tank, the method comprises the following steps:
(1) get the raw materials ready according to following component and content: high-density polyethylene resin 50kg, separating polymer fiber 50kg, wherein, high-density polyethylene resin is HDPE resin, separating polymer fiber is continuous PET fiber;
(2) HDPE resin plastifying fusion under 170 ℃ of temperature condition, obtains HDPE resin melt; Continuous PET fiber, through the melt impregnation of described HDPE resin, makes PET fiber complete wetting.Wherein, continuous P ET fiber is drawn by creel; through tensioning roller adjustment of tonicity; enter melt impregnation die head; in die head, realize dispersion and the infiltration of fiber; the content of the control of export fiber of the fiber by die head, cooling curing, is cut into fixing length (such as 8mm, 12mm etc.) through dicing machine.Pellet is sent in blow molding machine, and blow molding obtains the plastic fuel tank that HDPE/PET is compound.
Embodiment 2
A preparation method for plastic fuel tank, the method comprises the following steps:
(1) get the raw materials ready according to following component and content: high-density polyethylene resin 90kg, separating polymer fiber 10kg, compatilizer 5kg, wherein, high-density polyethylene resin is HDPE resin, separating polymer fiber is continuous P A66 fiber, and compatilizer is acrylic acid-grafted glycidyl methacrylate;
(2) HDPE resin plastifying fusion under 180 ℃ of temperature condition, obtains HDPE resin melt; Continuous PA66 fiber, through the melt impregnation of described HDPE resin, makes PA66 fiber complete wetting.Wherein, continuous P A66 fiber is drawn by creel; through tensioning roller adjustment of tonicity; enter melt impregnation die head; in die head, realize dispersion and the infiltration of fiber through the effect of compatilizer; the content of the control of export fiber of the fiber by die head, cooling curing, is cut into fixing length (such as 8mm, 12mm etc.) through dicing machine.Pellet is sent in blow molding machine, and blow molding obtains the plastic fuel tank that HDPE/PA66 is compound.
Embodiment 3
A preparation method for plastic fuel tank, the method comprises the following steps:
(1) get the raw materials ready according to following component and content: high-density polyethylene resin 70kg, separating polymer fiber 30kg, compatilizer 8kg, wherein, high-density polyethylene resin is HDPE resin, separating polymer fiber is continuous P EN fiber, and compatilizer is maleic anhydride grafted polyethylene;
(2) HDPE resin plastifying fusion under 190 ℃ of temperature condition, obtains HDPE resin melt; Continuous PEN fiber, through the melt impregnation of described HDPE resin, makes PEN fiber complete wetting.Wherein, continuous P EN fiber is drawn by creel; through tensioning roller adjustment of tonicity; enter melt impregnation die head; in die head, realize dispersion and the infiltration of fiber by the effect of compatilizer; the content of the control of export fiber of the fiber by die head, cooling curing, is cut into fixing length (such as 8mm, 12mm etc.) through dicing machine.Pellet is sent in blow molding machine, and blow molding obtains the plastic fuel tank that HDPE/PEN is compound.
Embodiment 4
A preparation method for plastic fuel tank, the method comprises the following steps:
(1) get the raw materials ready according to following component and content: high-density polyethylene resin 80kg, separating polymer fiber 20kg, compatilizer 5kg, wherein, high-density polyethylene resin is HDPE resin, separating polymer fiber is the blend fiber of continuous PEN fiber and PA66 fiber, and compatilizer is maleic anhydride inoculated polypropylene;
(2) HDPE resin plastifying fusion under 180 ℃ of temperature condition, obtains HDPE resin melt, and continuous PEN fiber and the blend fiber of PA66 fiber, through the melt impregnation of HDPE resin, make PEN and PA66 fiber complete wetting.Wherein, blend fiber is drawn by creel; through tensioning roller adjustment of tonicity; enter melt impregnation die head; in die head, realize dispersion and the infiltration of fiber by the effect of compatilizer; the content of the control of export fiber of the fiber by die head, cooling curing, is cut into fixing length (such as 8mm, 12mm etc.) through dicing machine.Pellet is sent in blow molding machine, and blow molding obtains the plastic fuel tank that HDPE/PEN is compound.
Claims (7)
1. a plastic fuel tank, is characterized in that, the raw material of this plastic fuel tank comprises following component and weight part content:
High-density polyethylene resin 50-90;
Separating polymer fiber 50-10;
Compatilizer 0-10;
Described separating polymer fiber is the continuous filament yarn with the polymkeric substance of barrier property;
The preparation method of described plastic fuel tank comprises the following steps:
(1) get the raw materials ready according to following component and weight part content:
High-density polyethylene resin 50-90,
Separating polymer fiber 50-10,
Compatilizer 0-10;
(2) by high-density polyethylene resin in 170～190 ℃ of meltings, obtain high-density polyethylene resin melt;
(3) melt impregnation through high-density polyethylene resin by continuous separating polymer fiber, then the pellet of respective length will be cut into after cooling the continuous separating polymer fiber infiltrating, pellet is sent in blow molding machine, obtained plastic fuel tank through blow molding;
Separating polymer fiber described in step (3) is drawn by creel, through tensioning roller adjustment of tonicity, enters melt impregnation die head, utilizes the melt of compatilizer and high-density polyethylene resin polymer fiber is disperseed and infiltrate in die head.
2. a kind of plastic fuel tank according to claim 1, is characterized in that, described high-density polyethylene resin comprises commercially available HDPE resin.
3. a kind of plastic fuel tank according to claim 1, is characterized in that, the melt temperature of described separating polymer fiber is greater than 240 ℃.
4. a kind of plastic fuel tank according to claim 1, it is characterized in that, described separating polymer fiber is selected from one or more in nylon 66 fiber (PA66), pet fiber (PET) or polyethylene naphthalate fiber (PEN).
5. a kind of plastic fuel tank according to claim 1, is characterized in that, described compatilizer is maleic anhydride, glycidyl methacrylate or acrylic acid grafts or multipolymer.
6. a kind of plastic fuel tank according to claim 1, is characterized in that, described compatilizer is maleic anhydride inoculated polypropylene or maleic anhydride grafted polyethylene.
7. a preparation method for plastic fuel tank as claimed in claim 1, is characterized in that, the method comprises the following steps:
(1) get the raw materials ready according to following component and weight part content:
High-density polyethylene resin 50-90,
Separating polymer fiber 50-10,
Compatilizer 0-10;
(2) by high-density polyethylene resin in 170～190 ℃ of meltings, obtain high-density polyethylene resin melt;
(3) melt impregnation through high-density polyethylene resin by continuous separating polymer fiber, then the pellet of respective length will be cut into after cooling the continuous separating polymer fiber infiltrating, pellet is sent in blow molding machine, obtained plastic fuel tank through blow molding;
Separating polymer fiber described in step (3) is drawn by creel, through tensioning roller adjustment of tonicity, enters melt impregnation die head, utilizes the melt of compatilizer and high-density polyethylene resin polymer fiber is disperseed and infiltrate in die head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010610157.8A CN102558640B (en) | 2010-12-23 | 2010-12-23 | Plastic fuel tank and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010610157.8A CN102558640B (en) | 2010-12-23 | 2010-12-23 | Plastic fuel tank and preparation method thereof |
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| CN102558640A CN102558640A (en) | 2012-07-11 |
| CN102558640B true CN102558640B (en) | 2014-06-04 |
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| CN201010610157.8A Active CN102558640B (en) | 2010-12-23 | 2010-12-23 | Plastic fuel tank and preparation method thereof |
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| CN109467895A (en) * | 2018-12-05 | 2019-03-15 | 常州瑞杰新材料科技有限公司 | A kind of high-barrier PET material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618853A (en) * | 2003-11-17 | 2005-05-25 | 上海杰事杰新材料股份有限公司 | Continuous high strength terylene fiber reinforced thermoplastic resin composite material |
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| US20040059042A1 (en) * | 2002-09-20 | 2004-03-25 | Hartle Thomas J. | Underhood components |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1618853A (en) * | 2003-11-17 | 2005-05-25 | 上海杰事杰新材料股份有限公司 | Continuous high strength terylene fiber reinforced thermoplastic resin composite material |
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