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Wet fully-winding and curing process for preparing hydrogen cylinder with carbon fiber lining

A curing process and carbon fiber technology, applied in the field of hydrogen storage cylinders, can solve the problems of low external impact resistance, easy cracking of products, bubbles in hydrogen storage cylinders, etc., and achieve the effect of high adhesion, small shrinkage, and easy infiltration

Inactive Publication Date: 2011-06-08
上海康巴赛特科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this structure are: low external impact resistance; with the increase of temperature and pressure, the penetration of hydrogen and other gases increases; the connection with the metal nozzle is often a weak link, easy to leak
[0006] The existing wet winding and curing process to manufacture fiber composite hydrogen storage cylinders is prone to bubbles, yellowing, delamination and other problems. The hydrogen storage cylinders must bear high pressure, and the product is prone to cracking after pressurization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A wet full winding and curing process method for carbon fiber aluminum liner hydrogen storage cylinders, the method includes the following process steps:

[0034] (1) According to the formula requirements, 100kg of commercially available bisphenol A epoxy resin E-51, 2kg of polysiloxane, 10kg of nitrile rubber, 2kg of benzyl dimethylamine, 55kg of alicyclic amine curing agent IPDA, according to bisphenol A Type epoxy resin E-51, polysiloxane, nitrile rubber, benzyl dimethylamine, alicyclic amine curing agent IPDA, all solvents are put into the rubber mixing cylinder;

[0035] (2) Continuous directional and allowed-speed stirring with a stirrer for 8 to 10 minutes, the stirring speed of the stirrer being 300 rpm;

[0036] (3) Slowly put the colloid into the dipping tank after mixing evenly;

[0037] (4) Under the action of the tensioner, the fiber is passed through the dipping tank, and after the fiber is combined with the glue (the volume content of carbon fiber is 70%...

Embodiment 2

[0046] A wet full winding and curing process for preparing carbon fiber aluminum liner hydrogen storage cylinders, the process comprises the following steps:

[0047] (1) Weigh 100kg and take novolac epoxy resin F-51, polyoxyethylene 1kg, chlorinated polyethylene 8kg, benzyldimethylamine 1kg, diaminodiphenylmethane 30kg, and put them into the rubber mixing cylinder in sequence;

[0048] (2) Continuous directional and uniform stirring with a stirrer for 8-10 minutes to obtain mixed colloids, the stirring speed of the stirrer is 200 rpm;

[0049] (3) Slowly drop the mixed colloid into the dipping tank;

[0050] (4) Under the action of the tensioner, the fiber is passed through the dipping tank, the fiber is combined with the colloid, and the fiber is wound in the form of a spiral and a hoop and completely covers the surface of the aluminum liner for wet winding. The fiber is carbon fiber , based on the total volume of fiber and colloid being 100%, the volume content of the carb...

Embodiment 3

[0059] A wet full winding and curing process for preparing carbon fiber aluminum liner hydrogen storage cylinders, the process comprises the following steps:

[0060] (1) Weighing 100kg brominated epoxy resin, 3kg tributyl phosphate, 14kg acrylonitrile-butadiene-styrene copolymer (ABS), 3kg N-tert-butyl-2-benzothiazole sulfenamide, 30kg of diamines are put into the compounding cylinder in sequence;

[0061] (2) Continuous directional and uniform stirring with a stirrer for 8-10 minutes to obtain mixed colloids, the stirring speed of the stirrer is 500 rpm;

[0062] (3) Slowly drop the mixed colloid into the dipping tank;

[0063] (4) Under the action of the tensioner, the fiber is passed through the dipping tank, the fiber is combined with the colloid, and the fiber is wound in the form of a spiral and a hoop and completely covers the surface of the aluminum liner for wet winding. The fiber is carbon fiber , based on the total volume of fiber and colloid being 100%, the volu...

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Abstract

The invention relates to a wet fully-winding and curing process for preparing a hydrogen cylinder with a carbon fiber lining, which comprises the following steps of: (1) weighing 100 weight parts of epoxy resin, 30 to 60 parts of curing agent and 10 to 20 parts of additive and adding the epoxy resin, the additive and the curing agent into an glue mixing tank in turn; (2) stirring with a stirrer for 8 to 10 minutes continuously, directionally and uniformly to obtain mixed glue; (3) slowly pouring the mixed glue into an impregnation tank; (4) allowing fibers to pass through the impregnation tank under the action of a tensioner to combine the fibers and the glue together, and performing wet winding which is to spirally and circularly wind the mixture on the surface of the aluminum lining so as to completely cover the surface of the aluminum lining; and (5) placing the winded hydrogen cylinder into a curing furnace for curing, and obtaining the product. Compared with the prior art, the process has the advantages that: the cured products have no air bubbles, are susceptible to infiltration, do not turn yellow and the like.

Description

technical field [0001] The invention relates to a hydrogen storage cylinder, in particular to a wet full winding and curing process for preparing a carbon fiber aluminum liner hydrogen storage cylinder. Background technique [0002] At present, there are three types of high-pressure hydrogen storage containers: metal hydrogen storage containers, metal-lined fiber-wound hydrogen storage containers, and full-composite hydrogen storage containers. [0003] Metal hydrogen storage container: It is made of metal with certain corrosion resistance to hydrogen. Due to the limited strength of metal, in order to increase the working pressure of the container, the thickness of the container can only be increased. But this will increase the difficulty of manufacturing the container and easily cause processing defects. At the same time, the density of the metal material is high, the mass of the container is large, and the hydrogen storage density per unit mass is low. [0004] Filament...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C63/10B29C35/02
Inventor 童喆益
Owner 上海康巴赛特科技发展有限公司
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