{"id":45,"date":"2022-06-10T07:48:27","date_gmt":"2022-06-10T07:48:27","guid":{"rendered":"https:\/\/www.mitsufuku.co.jp\/en\/fluoro\/?page_id=45"},"modified":"2022-06-29T00:06:59","modified_gmt":"2022-06-29T00:06:59","slug":"fluoro-resin-sponge","status":"publish","type":"page","link":"https:\/\/www.mitsufuku.co.jp\/en\/fluoro\/fluoro-resin-sponge","title":{"rendered":"Fluoroplastic foam sheet"},"content":{"rendered":"
\r\n \r\n \r\n \r\n \"Fluoroplastic\r\n <\/picture>\r\n <\/figure><\/div>\n\n\n

MF-Fluorosheet is a fluoroplastic foam sheet (fluoroplastic sponge) with heat resistance, non-adhesiveness, low dielectric constant and low dielectric loss tangent.
This product has an even lower dielectric constant than PTFE, which has an extremely low dielectric constant among plastics, and is expected to play an active role in high-frequency communication applications. We have a lineup of three types according to hardness to meet customers' applications.<\/p>\n\n\n\n

Table of Contents<\/strong><\/p>\n\n\n\n

  • Features of MF-Fluorosheet (general properties, thermal properties)<\/li>
  • Physical Properties<\/li>
  • Low dielectric constant and dissipation factor<\/li>
  • Surface condition observation<\/li>
  • Effects of chemicals<\/li>
  • Effects during heating<\/li>
  • Thermal conductivity<\/li>
  • Applications<\/li>
  • Product Size\/Processing Method<\/li>
  • Environmental Survey Response<\/li>
  • Samples\/Inquiries<\/li><\/ul>\n\n\n\n

    1.MF-Fluorosheet Features<\/h2>\n\n\n\n
    • 100% fluoropolymer impurity-free foam
      Heat resistant, chemical resistant, non-adhesive, water repellent, chemical adsorption, breathable, low dielectric constant, etc.<\/li>
    • Thickness, length, and shape can be adjusted according to the application, such as tubular or sheet form, and can be crushed by tightening and compressing
      Insulation cover, filtration sheet (oil-water separation membrane), gasket (when tightened)<\/li>
    • Due to the different structure from stretched sheets, there is less expansion and contraction due to heat, which reduces problems during installation and use when used as gaskets, etc.<\/li><\/ul>\n\n\n\n
      \n
      General Properties<\/figcaption>\n \n \n \n <\/tr>\n \n \n \n \n \n \n \n \n \n \n \n
      Entry<\/th>\n PTFE<\/th>\n MF-60P<\/th>\n MF-70P<\/th>\n MF-75P<\/th>\n Test conditions<\/th>\n <\/tr>\n
      Hardness<\/th>\n 80<\/td>\n 72<\/td>\n 52<\/td>\n 39<\/td>\n Durometer A Peak value<\/td>\n <\/tr>\n
      95<\/td>\n 83<\/td>\n 68<\/td>\n 50<\/td>\n Asker C<\/td>\n <\/tr>\n
      Density[g\/cm3<\/sup>]<\/th>\n 2.15<\/td>\n 0.86<\/td>\n 0.62<\/td>\n 0.51<\/td>\n <\/td>\n <\/tr>\n
      Tensile strength[MPa]<\/th>\n Unmeasured<\/td>\n 2.42<\/td>\n 1.20<\/td>\n 0.67<\/td>\n JIS K 6251<\/td>\n <\/tr>\n
      Growth[\uff05]<\/th>\n Unmeasured<\/td>\n 81<\/td>\n 71<\/td>\n 59<\/td>\n JIS K 6251<\/td>\n <\/tr>\n
      Porosity[\uff05]<\/th>\n 0<\/td>\n 60<\/td>\n 71<\/td>\n 76<\/td>\n (Fluoropolymer density - fluoropolymer foam density)\/PTFE density x 100<\/td>\n <\/tr>\n
      Amount of wear[mg]<\/th>\n Unmeasured<\/td>\n 142<\/td>\n 261<\/td>\n 1245<\/td>\n JIS K 7204<\/td>\n <\/tr>\n
      Load = 250g, Wear wheel = H-22, Number of revolutions = 1000, Rotational speed = 60rpm<\/td>\n <\/tr>\n
      Breathability[sec\/100ml]<\/th>\n Unmeasured<\/td>\n 3.8<\/td>\n 1.3<\/td>\n 0.6<\/td>\n JIS P 8117
      (Garre densometer)<\/td>\n <\/tr>\n
      Dielectric constant<\/th>\n Unmeasured<\/td>\n 1.37<\/td>\n 1.27<\/td>\n 1.22<\/td>\n IPC TM-650 2.5.5.13 (Cavity resonator method) Frequency: 20GHz<\/td>\n <\/tr>\n
      Dielectric tangent<\/th>\n Unmeasured<\/td>\n 0.00021<\/td>\n 0.00017<\/td>\n 0.00016<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n<\/figure>\n\n\n\n
      \n
      Thermal Properties<\/figcaption>\n \n \n \n \n \n \n \n \n
      <\/th>\n <\/th>\n PTFE<\/th>\n MF-Fluorosheet
      [MF-75P]<\/th>\n <\/tr>\n
      Physical properties<\/td>\n Specific gravity<\/td>\n 2.15<\/td>\n 0.49<\/td>\n <\/tr>\n
      Thickness[mm]<\/td>\n 1.28<\/td>\n 0.62<\/td>\n <\/tr>\n
      Specific heat capacity[J\/g\/K]<\/td>\n 1.125<\/td>\n 1.822<\/td>\n <\/tr>\n
      Thermal diffusivity[mm2<\/sup>\/s]<\/td>\n 0.108<\/td>\n 0.061<\/td>\n <\/tr>\n
      Thermal conductivity[W\/mK]<\/td>\n 0.261<\/td>\n 0.054<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n<\/figure>\n\n\n\n

      Equipment used: Xe flash analyzer (NETZSCH)
      Measuring conditions: Laser flash method at a set temperature of 25\u00b0C<\/p>\n\n\n\n

      2. Physical properties<\/h2>\n\n\n\n

      Table.1 Contact angle to water<\/h3>\n\n\n\n
      \n \n \n \n \n \n \n \n \n \n
      Elapsed time[ms]<\/th>\n C.A[\u00b0]<\/th>\n <\/tr>\n
      PTFE<\/th>\n MF-75P<\/th>\n <\/tr>\n
      1000<\/td>\n 76.7<\/td>\n 103.8<\/td>\n <\/tr>\n
      3000<\/td>\n 76.5<\/td>\n 104.9<\/td>\n <\/tr>\n
      5000<\/td>\n 76.7<\/td>\n 103.8<\/td>\n <\/tr>\n
      7000<\/td>\n 76.7<\/td>\n 103.8<\/td>\n <\/tr>\n
      9000<\/td>\n 76.5<\/td>\n 103.8<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n<\/figure>\n\n\n\n

      Machine used : Contact angle meter DM-501 (Kyowa Chemical)<\/p>\n\n\n\n

      Figure.1 Contact angle to water (MF-75P)<\/h3>\n\n\n