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Plastic fuel tank and preparation method thereof

A fuel tank and plastic technology, applied in the field of plastic fuel tank preparation, can solve the problems of plastic fuel tank molding process complexity, large degree of freedom in shape design, etc., to reduce fuel leakage, ensure integrity and uniformity, Good barrier effect

Active Publication Date: 2012-07-11
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (3) Large degree of freedom in shape design
The molding process of plastic fuel tanks with multi-layer composite structure is relatively complicated, requiring a special hollow blow molding machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a plastic fuel tank, the method comprising the following steps:

[0037] (1) Prepare materials according to the following components and contents: 50 kg of high-density polyethylene resin and 50 kg of barrier polymer fiber, wherein the high-density polyethylene resin is HDPE resin, and the barrier polymer fiber is continuous PET fiber;

[0038] (2) The HDPE resin is plasticized and melted at a temperature of 170° C. to obtain a HDPE resin melt; continuous PET fibers are impregnated by the HDPE resin melt, so that the PET fibers are completely infiltrated. Among them, the continuous PET fiber is drawn out from the creel, the tension is adjusted by the tension roller, and then enters the melt impregnation die, where the fiber is dispersed and infiltrated in the die, and the fiber content is controlled through the fiber outlet of the die, cooled and solidified. The pelletizer cuts to a fixed length (eg 8mm, 12mm, etc.). Send the pellets into a hollo...

Embodiment 2

[0040] A method for preparing a plastic fuel tank, the method comprising the following steps:

[0041] (1) Prepare materials according to the following components and contents: 90kg of high-density polyethylene resin, 10kg of barrier polymer fiber, and 5kg of compatibilizer, among which, the high-density polyethylene resin is HDPE resin, and the barrier polymer fiber is continuous PA66 fiber , the compatibilizer is glycidyl methacrylate grafted with acrylic acid;

[0042] (2) The HDPE resin is plasticized and melted at a temperature of 180° C. to obtain a HDPE resin melt; continuous PA66 fibers are impregnated through the HDPE resin melt, so that the PA66 fibers are completely infiltrated. Among them, the continuous PA66 fiber is drawn from the creel, the tension is adjusted by the tension roller, and then enters the melt impregnation die, and the fiber is dispersed and infiltrated by the action of the compatibilizer in the die, and the fiber content is controlled through the ...

Embodiment 3

[0044] A method for preparing a plastic fuel tank, the method comprising the following steps:

[0045] (1) Prepare materials according to the following components and contents: 70kg of high-density polyethylene resin, 30kg of barrier polymer fiber, and 8kg of compatibilizer, among which, the high-density polyethylene resin is HDPE resin, and the barrier polymer fiber is continuous PEN fiber , the compatibilizer is maleic anhydride grafted polyethylene;

[0046] (2) The HDPE resin is plasticized and melted at a temperature of 190° C. to obtain a HDPE resin melt; the continuous PEN fibers are impregnated by the HDPE resin melt, so that the PEN fibers are completely infiltrated. Among them, the continuous PEN fiber is drawn out from the creel, the tension is adjusted by the tension roller, and then enters the melt impregnation die, and the dispersion and infiltration of the fiber is realized through the action of the compatibilizer in the die, and the fiber exit through the die i...

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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 [0001] The invention relates to a fuel tank and a preparation method thereof, in particular to a preparation method of a plastic fuel tank. Background technique [0002] Most of the early automobile fuel tanks were metal fuel tanks. However, due to the many defects of metal fuel tanks in terms of environmental protection and safety performance, this led to the birth of plastic fuel tanks. Plastic fuel tanks have many advantages: [0003] (1) Light weight. The relative density of plastic is only 1 / 8 to 1 / 7 of that of metal, so compared with the same volume of metal fuel tank, its weight can be reduced by 30% to 50%, thereby reducing the overall weight of the car and reducing fuel consumption. [0004] (2) Corrosion resistance. Due to the strong chemical corrosion resistance of plastic, the plastic fuel tank will not produce some impurities due to corrosion, which will not cause impurities to enter the engine through the oil supply system and cause damage t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L77/06C08L67/02C08L51/06
Inventor 杨桂生肖玲玲孙利明
Owner HEFEI GENIUS NEW MATERIALS
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