China e-PTFE Hydrophobic Breathable Membrane Suppliers & Factory for High-Performance Applications
Membrane Properties
| Physical Properties | Referred Test Standard | Unit | Typical Data |
|---|---|---|---|
| Membrane Color | / | / | Black |
| Membrane Construction | / | / | Mesh/PTFE |
| Membrane Surface Property | / | / | Hydrophobic |
| Thickness | ISO 534 | mm | 0.07±0.01 |
| Interlayer Bonding Strength (90 degree peel) | Internal Method | N/inch | >2 |
| Min Air Flow Rate | ASTM D737 (Test Area: 1 cm²) | ml/min/cm²@3Kpa | >6000 |
| Typical Air Flow Rate | ASTM D737 (Test Area: 1 cm²) | ml/min/cm²@ 3Kpa | 9000 |
| Water Entry Pressure | ASTM D751 (Test Area: 1 cm²) | KPa for 30 sec | 5 |
| IP Rating | IEC 60529 | / | IP64/IP65/IP66 |
| Water Vapor Transmission Rate | GB/T 12704.2 (38℃/50%RH, Inverted Cup Method) | g/m²/24h | >5000 |
| Oleophobic Grade | AATCC 118 | Grade | NA |
| Operation Temperature | IEC 60068-2-14 | ℃ | -40℃～100℃ |
| ROHS | IEC 62321 | / | Meet ROHS Requirements |
| PFOA & PFOS | US EPA 3550C & US EPA 8321B | / | PFOA & PFOS Free |
(1) Acoustic Response and IP Grade test part dimension: I.D. 2.0 mm / O.D. 6.0 mm.
(2) The results are tested using a typical digital output MEMS microphone system and self-designed test device in ZZPIP laboratory with representative sample size. The design of the device will affect final performance.
Applications
This series of membranes can be used in waterproof and acoustics membrane for portable and wearable electronic devices, such as Smart Phones, Earphones, Smart Watches, Bluetooth Speakers, Alertors, etc.
The membrane provides the device with immersed waterproof protection and minimal sound transmission loss, maintaining excellent acoustic transmission performance.
Shelf Life
Shelf life is 5 years from the date of receipt for this product as long as it is stored in its original packaging in an environment below 80° F (27° C) and 60% RH.
All data above are typical data for the membrane raw material, for reference only, and should not be used as special data for outgoing quality control.
All technical information and advice given here is based on ZZPIP’s previous experiences and test results. ZZPIP gives this information to the best of its knowledge, but assumes no legal responsibility. Customers are asked to check the suitability and usability in the specific application, since the performance of the product can only be judged when all necessary operating data are available.