The Porometer 3G fully automatic thin film aperture and permeability measuring instrument is a unique fully automatic multifunctional thin film analyzer newly launched by Kantar in the United States. The biggest feature of this instrument is that the method is pollution-free, does not require laboratory modifications, is safer and more convenient, and is also the standard method for thin film determination by ASTM (American Society for Testing and Materials).

The Porometer 3G series new products have high precision, high resolution, reproducibility better than 0.5%, wide testing dynamic range (0.02~500 microns), suitable for testing various membrane materials, and comply with ASTM, GB, BS (British Standards Institute) certification, HY/T (China Marine Industry Standard) and other standards. They can be widely used in industries such as filtration materials, microporous membranes, textiles, paper, batteries, ceramics, rock cores, etc.

Principle Overview

According to the capillary permeation method, the pore size and permeability of the film are determined using the Washburn equation. When the material pore is infiltrated by liquid, the capillary tension will cause a certain positive pressure to form inside the pore. Only by applying a certain pressure at one end of the pore can the liquid infiltrated into the pore be dischargedPDiameter of the channel where the liquid is expelledDFollowing the Washburm equation, namely:P*D=4 γ cos θ. Solving this equation can obtain the pore size parameters of the internal pores of the material.

Analysis function——

Throat diameter

Bubble spot diameter

Average flow aperture

air permeability

Liquid permeability (Frazier, Gurley model)

Dry and wet gas flow rates

External surface area, average particle size, average fiber fineness

Aperture distribution, pore number distribution, cumulative/differential flow distribution

Product advantages

ØLow surface tensionofPOROFILInfiltrative fluid（16mN／m）, applicable to all membrane material testing

ØHigh precision, high resolution，16High-precision number/Analog converter, with better reproducibility than0.5%

ØWide testing dynamic range(0.02~500micron)

ØUnique pressure sensor detection positionEliminate pressure measurement deviation

ØAutomatic gradient boosting system，Can avoid errors caused by uneven boost voltage

ØAttached areStandard membraneCan be calibrated regularly

ØTest analysis connectionPCAutomatic completionThe data and charts are detailed, intuitive, and easy to operate

Industry and purpose

Filter material, microporous membrane

Woven fabrics, paper

Sintered materials, battery materials

Oil, fuel, and air filters

Ceramics, porous plastics, rock cores