Name: Trans-Liquid Venting Membrane:
Material: 100% fluoropolymer or non-fluoropolymer, homogeneous.
Structure: Single-layer porous membrane, support-free, non-laminated composite.
Thickness: 60-130µm, identical front and back surfaces, smooth and flat.
Working Principle of Porous Membrane Liquid-Barrier Breathable Membrane: (One side is fully in contact with the liquid)
* Automatic exhalation to eliminate expansion:
In a sealed environment, vaporization creates a positive pressure differential. The membrane exhales the evaporated gas through its pores to balance the pressure differential.
* Automatic inhalation balance negative pressure:
Continuous flow and reduction of liquid creates a negative pressure differential in a sealed environment. The membrane absorbs external gas through its pores to balance the pressure differential.
Advantages of Our Liquid-Barrier Breathable Membrane: (Compared to Similar Products on the Market)
Liquid Leakage Resistance, Safe and Stable.
The membrane's min leak resistance pressure is determined by the membrane's maxpore size. With tight pore size tolerances and a regular
pore shape, the membrane's leak resistance pressure is high and test variability is minimal.
The membrane's high strength and stiffness minimize deformation under pressure, resulting in minimal variation in leak resistance during actual operation.
High air permeability, compatibility with varying operating pressures, and excellent adaptability.
Thin thickness and high porosity provide low gas flow resistance, making it sensitive to even small pressure differences and adaptable to rapid pressure changes.
Single-layer, unsupported, and with a wellbalanced, symmetrical microstructure, the difference between test and operating data is minimal
and stable.
Common air permeability testing methods:
* Benderson test method (ml/cm² * min @ 7 kPa)
* Gurley test method (s/100 ml * inch² @ 1.23 kPa)
* Fraizer test method (mm/s * Pa)
Balanced overall performance and adjustable controllability.
High leak resistance + high air permeability, meeting the highest demands of various industries and applications.
It also meets customer requirements for performance and yield, especially when cut into small pieces for high-end applications.
Product Types and Applications:
1. Hydrophobic Breathable Membrane
Applications: Waterproof air inlet valves for infusion sets, vehicle lights, batteries, artificial kidneys, hemodialysis machines, and pressure sterilizers.
Functions:
* Air intake filtration, dust prevention, and sterilization.
* Waterproof, moisture permeable, heat dissipation, condensation prevention, protection against overpressure expansion or contraction, and protection against overheating.
2. Oleophobic Breathable Membrane
Applications: Vents for organic solvents, pesticides, perfume packaging, wet-type transformers, and kitchen gas sensors.
Functions:
* Prevents expansion or contraction due to overpressure.
* Controls VOCs vaporization and slows release.
Model and basic data:
* The liquid leakage resistance and air permeability of the membrane can be customized according to customer requirements.
