Do Fluoroplastic Sheets Have The Properties Of Plasticizers

Generally, a fluoroplastic plate with a plasticizer is soaked in the working medium for a long time. The plasticizer will gradually be absorbed by the working medium, which causes the volume of the O -sealing ring to shrink. When the O -type is permanently deformed greater than 40%, fluorine The rubber plate lost the sealing ability and leaked. The initial stress value formed in the rubber material of fluoroplastine due to compression deformation, and it will gradually reduce with the decline of the fluoroplastic process and temperature decrease to disappear. The initial compression that works under zero to work below zero may decrease or completely disappear due to the sharp decrease in temperature. In the case of -50 ~ -60 ° C, the low-temperature rubber material will completely lose its initial stress; even if the low-temperature rubber material is resistant to low temperature, the initial stress at this time will not be greater than the initial stress of 25%at 20 ° C. This is because the initial compression of fluoroplastics depends on the lineflation coefficient. Therefore, when selecting the initial compression volume, it is necessary to ensure that there is still sufficient sealing ability after the stress decline due to the decline in the process and temperature decline. Fluoropia that works below zero, pay special attention to the recovery index and deformation index of rubber materials. In summary, the design should be as designed to ensure that the fluorine tape is appropriate to have a suitable working temperature, or use high -resistant and low -temperature fluoroplastic sheet materials to extend the service life. 3) The pressure of the medium work pressure and permanent deformation working medium is the main factor that causes permanent deformation of fluorine plywood. The work pressure of modern hydraulic equipment is increasing. Long -term high -voltage effects can cause permanent deformation of fluorine rubber. Therefore, when designing, proper pressure -resistant rubber materials should be selected according to work pressure. The higher the work pressure, the higher the hardness and high pressure resistance of the materials used. In order to improve the resistance of fluorine rubber material, increase the elasticity of the material (especially the elasticity of the material at low temperature), and reduce the permanent deformation of the material. Generally, the formula of the material is required to add plasticizers.