Composite resin material for pressure gas storage container and preparation method thereof

A composite resin and gas storage container technology, applied in the field of composite resin materials, can solve the problems of affecting the performance of plastic liner, increasing the risk of hydrogen leakage due to material failure, poor performance, etc., to reduce the coefficient of linear expansion, improve the strength, and improve the overall performance. Effect

Active Publication Date: 2022-07-12
SHENZHEN XIWAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a composite resin material for pressure gas storage containers and its preparation method, aiming to solve the problem that the performance of the existing resin material used as the plastic liner of the pressure gas storage container is poor, which affects the performance of the plastic liner , thus increasing the risk of hydrogen leakage due to material failure

Method used

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  • Composite resin material for pressure gas storage container and preparation method thereof
  • Composite resin material for pressure gas storage container and preparation method thereof
  • Composite resin material for pressure gas storage container and preparation method thereof

Examples

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preparation example Construction

[0049] In a second aspect, an embodiment of the present application provides a method for preparing a composite resin material for a pressure gas storage container, comprising the following steps:

[0050] S01. Mixing carbon nanotubes and dispersing oil to configure carbon nanotube slurry;

[0051] S02. Mix nylon 6 and high-density polyethylene to form a resin mixture;

[0052] S03. After the resin mixture is melted in a twin-screw extruder, carbon nanotube slurry is added, and extruded and pelletized to obtain a composite resin material.

[0053] The preparation method of the composite resin material for the pressure gas storage container provided in the embodiment of the present application adopts dispersing oil as the dispersion medium of carbon nanotubes, and prepares the carbon nanotube slurry through two dispersion treatments, so as to improve the carbon nanotubes in the carbon nanotubes. Dispersion performance in dispersing oil. On this basis, carbon nanotube slurry is...

Embodiment 1

[0072] A composite resin material used as a high-pressure hydrogen storage bottle liner material, the content of each raw material is shown in Example 1 of Table 1. The composite resin material is prepared by the following method:

[0073] Weigh the carbon nanotubes under the stirring condition of the stirring disperser, and slowly add the carbon nanotubes to the white mineral oil while stirring, wherein the mass ratio of the carbon nanotubes to the white mineral oil is 1:3, and the stirring speed is 500rpm. After the carbon nanotubes are added, continue stirring for 20 minutes to obtain a carbon nanotube / white mineral oil premixed slurry.

[0074] The above-mentioned premixed slurry was poured into a homogenizer, and dispersed for 12 hours under the condition of a pressure of 40 MPa to obtain a carbon nanotube dispersion slurry.

[0075] Mix HDPE, PA6, 1010 and 168 through mechanical stirring to obtain HDPE / PA6 mixture; melt and stir the HDPE / PA6 mixture through a twin-screw e...

Embodiment 2

[0077] A composite resin material used as a high-pressure hydrogen storage bottle liner material, the content of each raw material is shown in Example 2 of Table 1. The composite resin material is prepared by the following method:

[0078] Weigh the carbon nanotubes under the stirring condition of the stirring disperser, and slowly add the carbon nanotubes to the white mineral oil while stirring, wherein the mass ratio of the carbon nanotubes to the white mineral oil is 1:3, and the stirring speed is 500rpm. After the carbon nanotubes are added, continue stirring for 20 minutes to obtain a carbon nanotube / white mineral oil premixed slurry.

[0079] The above-mentioned premixed slurry was poured into a homogenizer, and dispersed for 12 hours under the condition of a pressure of 40 MPa to obtain a carbon nanotube dispersion slurry.

[0080] Mix HDPE, PA6, 1010 and 168 through mechanical stirring to obtain HDPE / PA6 mixture; melt and stir the HDPE / PA6 mixture through a twin-screw...

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Abstract

The application belongs to the technical field of composite resin materials, and in particular relates to a composite resin material used for a pressure gas storage container and a preparation method thereof. The method for preparing a composite resin material for a pressure gas storage container provided by the present application includes the following steps: mixing carbon nanotubes and dispersed oil to prepare carbon nanotube slurry; mixing nylon 6 and high-density polyethylene to form Resin mixture; after the resin mixture is melted in a twin-screw extruder, the carbon nanotube slurry is added, and the composite resin material is prepared by extrusion and granulation. The preparation method provided by the present application can improve the dispersibility of carbon nanotubes in the matrix resin, thereby improving the low temperature performance of the composite material and improving the heat dissipation performance.

Description

technical field [0001] The application belongs to the technical field of composite resin materials, and in particular relates to a composite resin material for a pressure gas storage container and a preparation method thereof. Background technique [0002] The hydrogen storage system is one of the core components of the fuel cell system, which includes high-pressure hydrogen storage cylinders, safety valves, and pipelines. Among them, the high-pressure hydrogen storage cylinder is mainly responsible for storing high-pressure gaseous hydrogen, and its working state and health condition determine the safety and service life of the entire fuel cell vehicle. The four-type high-pressure hydrogen storage bottle with plastic liner and carbon fiber fully wound is widely expected by the market due to its advantages of light weight, high gas storage density, and easier molding than metal liner. At present, the four types of high-pressure hydrogen storage cylinders are mainly used in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L77/02C08K3/04C08K9/04
CPCC08L23/06C08L2207/062C08L77/02C08K3/041C08K9/04Y02E60/32
Inventor 章驰天李然邓飞
Owner SHENZHEN XIWAN TECH CO LTD
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