New gas permeable membrane comprehensively solves the problem of pressure inside the drum

New gas permeable membrane comprehensively solves the problem of pressure inside the drum

A new research result, the new two-way gas permeable membrane, was born. This new technology completely solves the problem of pressure inside the drum and can be applied to atmospheric pressure packaging containers such as plastic drums and steel drums. The research of this technology began with the packaging and transportation of hydrogen peroxide.

For many years, manufacturers of hydrogen peroxide have been confused about the problem of storage and transportation of hydrogen peroxide. The barreled liquid needs to be sealed, but the liquid hydrogen peroxide can not be sealed. Because hydrogen peroxide releases a large amount of oxygen during transportation, the table seal is too strict and the gas expands. The pressure can also expand the package to the rupture. Once the hydrogen peroxide package is broken, the liquid hydrogen peroxide will hit the debris and the metal will release a large amount of oxygen. Pure oxygen is a flammable dangerous product. At this time, only a small ignition star is encountered. Explosion, in the last century, the transportation of hydrogen peroxide vehicles, there have been explosions, so the transport of hydrogen peroxide is a first-class dangerous goods.

Liquid packaging needs to be sealed, but hydrogen peroxide can not be sealed. Once the sealed barrel is dumped, it will cause leakage, so this is a contradiction that is difficult to solve. From the 1990s, there was a new material that is breathable and watertight - P4F gas permeable membrane. This material is breathable but not leaking, resistant to acid and alkali, and can withstand pressure, so it is made into gasket and inner plug, used in packaging. The seal of the barrel is the most ideal and advanced new material. The gas in the drum of the gasket can be automatically discharged in seconds and seconds, so that the drum is in a normal state without internal pressure, even if the barrel is accidentally When dumped, the liquid will not leak, and the problem of storage and transportation of the first-class dangerous goods such as peroxide can be solved straightforwardly.

The speed of ventilation is proportional to the area of ​​the pressure and the gas permeable membrane. Generally, the venting hole of 500 ml to 25 liters can be φ 4.5 mm. 25 to 100 liters of venting holes are φ6 mm. The venting hole of 100 liters to 200 liters is φ9 mm.

P4F gas permeable membrane is two-way gas permeable, what is two-way, that is, if the material in the winter barrel shrinks due to low temperature, this negative pressure, if the seal is too strict, the packaging barrel will shrink and deform, and the air used for the outer surface of the gas permeable sheet It can also be sucked into the barrel through the gas permeable membrane to balance the pressure inside the barrel with the outside world. Therefore, the barrel body will not be deformed due to temperature changes. When the pressure inside the barrel is large, it can be discharged through the gas permeable membrane, so the venting function is two-way, packaging The problem of deformation of the barrel due to the hot and cold weather is solved.

Anyone who is interested in this technical achievement or needs this product can get in touch with the China Packaging Federation Metal Container Committee Bucket Branch:

China Packaging Federation Metal Container Committee Co., Ltd.
Address: Room 306, No. 18, Majiabao East Road, Fengtai District, Beijing
Postal code: 100077
Contact: Zheng Weisen
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