Gas holder rubber sealing film installed in the Wiggins gas cabinet, the type of gas cabinet, also known as flexible film sealing type gas cabinet or roll-up sealing gas cabinet, created by the American John Wiggins (JOHNWIGGINS), in 1940 in the United States to build the first (volume of 1480m). The shape is cylindrical, the piston and the tank is connected with a flexible film sealing curtain, the film moves up and down with the piston and rolled up or down, to achieve the purpose of sealing.
Water resistance test (Test condition: tap water 70℃×70h)
Test items
Technical indicators
Implementation standards
Tensile strength （MPa）
≥11
GB/T1690
Elongation rate （%）
≥250
GB/T1690
Durometer（Shore A）
-5～+10
GB/T1690
Cold resistance test
Test items
Technical indicators
Implementation standards
Brittleness temperature
-40℃
GB/T1682
Skeleton material,Rubber Selection
The skeleton structure adopts "米" type three-layer mechanism, so that the product realizes the requirement of high strength in the direction of left and right 45 ° angle, and overcomes the tensile deformation in the vertical direction, and has sufficient strength, and at the same time, has a good flexural and flexibility. The skeleton material adopts cord fabric, thus ensuring the strength requirement of the product. Whether $ gas cabinet rubber sealing film can have good airtightness, ozone resistance, resistance to hydrogen sulfide gas corrosion, resistance to aromatic hydrocarbon solvents, mainly depends on the type of rubber and the formulation of the rubber material. At present, the main material at home and abroad mainly choose to use nitrile rubber + polyvinyl chloride (PVC), but the same formula of different production processes, the performance of the products produced varies greatly.
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