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Plastic for hydrogen storage pressure vessel and preparation method thereof

A technology for pressure vessels and plastics, which is applied in the field of plastics for hydrogen storage pressure vessels and its preparation, can solve the problems affecting the mechanical properties, low modulus and strength of composite high-pressure hydrogen storage cylinders, low-pressure blasting of plastic linings, etc. Tensile strength and elongation at break, simple preparation method, and effect of reducing leakage

Inactive Publication Date: 2022-01-04
JIANGSU GOLDEN MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modulus and strength of the plastic lining are low. When fibers are wound on the outer surface of the plastic lining, the plastic lining is prone to low-pressure explosion during use, and the number of winding layers of fibers will also affect the composite material. Mechanical Properties of High Pressure Hydrogen Storage Cylinders

Method used

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  • Plastic for hydrogen storage pressure vessel and preparation method thereof
  • Plastic for hydrogen storage pressure vessel and preparation method thereof
  • Plastic for hydrogen storage pressure vessel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] According to Table 1, the specific raw material is weighed, and the rest of the steps are as follows:

[0024] (1) Add a polyamide 6 to the mold to obtain an outer layer at a temperature of 300 ° C, and the mold is 30 min, and the air is cooled to 80 ° C;

[0025] (2) Add PVC resin, HDPE resin, ethylene-vinyl acetate copolymer, modified potassium potassium perfusulation, and to obtain a separation layer at a temperature of 260 ° C, and the rolling time is 50 min, and the wind is cool. 80 ° C;

[0026] (3) Add a PVC resin to the mold, and the inner layer is obtained at a temperature of 70 ° C, and the hipping time is 40 min, and the wind is cooled to 65 ° C, which is deprived.

Embodiment 2

[0028] According to Table 1, the specific raw material is weighed, and the rest of the steps are as follows:

[0029] (1) Add a polyamide 6 to the mold, and the outer layer is obtained at a temperature of 310 ° C, and the hipping time is 25 min, and the air is cooled to 70 ° C;

[0030] (2) Add PVC resin, HDPE resin, ethylene-vinyl acetate copolymer, modified tetral titanated potassium-calcium crystal, and to obtain a separation layer at temperature 260 ° C, the roll mode is 40 min, and the wind is cool. 70 ° C;

[0031] (3) Add a PVC resin to the mold, and the inner layer is obtained by rolling molding at a temperature of 75 ° C, and the hydrating time is 30 min, and the air is cooled to 60 ° C, which is obtained.

Embodiment 3

[0033] According to Table 1, the specific raw material is weighed, and the rest of the steps are as follows:

[0034] (1) Add a polyamide 6 to the mold to obtain an outer layer at a temperature of 310 ° C, and the hipping time is 30 min, and the air is cooled to 80 ° C;

[0035] (2) Add PVC resin, HDPE resin, ethylene-vinyl acetate copolymer, modified tetral titanated potassium-calcium, and the temperature is 50 min, and the temperature is 50 min, and the wind is cool. 80 ° C;

[0036] (3) Add PVC resin to the mold, and obtain the inner layer at a temperature of 75 ° C, the inner layer is obtained, and the water is 40 min, and the air is cooled to 65 ° C, which is deprived.

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Abstract

The invention relates to the technical field of high polymer materials, in particular to plastic for a hydrogen storage pressure vessel and a preparation method thereof. The plastic is prepared from PVC resin, HDPE resin, ethylene copolymer and modified potassium tetratitanate whiskers. The plastic can be used as an isolation layer in the liner of the hydrogen storage pressure vessel, and the ethylene-vinyl acetate copolymer and the modified potassium tetratitanate whisker are added, so that the physical properties such as tensile strength and elongation at break can be further improved, the sealing property of the whole liner of the vessel can be enhanced, the leakage amount of hydrogen is further reduced, and thus the hydrogen storage requirement is met.

Description

Technical field [0001] The present invention relates to the field of polymer materials, and more particularly to plastics for hydrogen storage pressure vessels and preparation methods thereof. Background technique [0002] The composite gas cylinder began to apply in the field of aerospace and military fields in the 1970s. With the US and Europe's general technology to turn to the civil market, its application is more wide, such as respiratory, natural gas pipelines in the medical industry, and Hydrogen storage cylinders in new energy vehicles. Among them, plastic lining composite gas cylinders have the advantages of weight and fatigue resistance than conventional metal lining fibers, and have become the current development and application of the current development and application. [0003] High-pressure storage hydrogen cylinders are mainly used to store high pressure gaseous hydrogen, with the shortage of oil resources and global climate problems caused by carbon emissions, hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/08C08K7/08B32B27/30B32B27/32B32B27/18B32B27/34B32B27/08B32B27/06B32B1/02F17C1/16F17C1/12B32B1/00
CPCC08L27/06B32B27/304B32B27/32B32B27/306B32B27/18B32B27/34B32B27/08F17C1/16F17C1/12C08L2203/10B32B2439/60B32B2307/54B32B2307/7242F17C2203/0621F17C2203/066F17C2209/2109F17C2209/238F17C2221/012F17C2265/061F17C2270/0184B32B1/00C08L23/06C08L23/0853C08K7/08Y02E60/32
Inventor 谢四海王景清张裕刚姜坤王玮吴康胜
Owner JIANGSU GOLDEN MATERIAL TECH
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