Sterlitech polyester track etch (PETE) membranes are made from a thin, microporous, hydrophilic polyester material film with a high degree of solvent resistance. PETE membranes are ideal for use in blood assays or general filtration where chemically aggressive solvents may be used.
Sterlitech’s polyester track etch (PETE) membranes are produced through a two-step proprietary manufacturing process that employs the highest of quality standards throughout. This unique process allows for increased control over membrane pore size and pore density to ensure the physical properties of each polyester membrane precisely fit customer specifications.
In the first step of the PETE membrane production process, thin polyester film is exposed to collimated, charged particles from a nuclear reactor. As these particles pass through the polyester material, they leave sensitized tracks. In the second step, the polymer tracks are dissolved with an etching solution to form cylindrical pores. Varying the temperature and strength of the etching solution and the exposure time to it ultimately produces precisely controlled pore sizes in our PETE membrane film.
The resulting membrane is a thin, translucent, microporous polyester film with a smooth, flat surface containing pores of controlled diameter and number. The PETE membrane has better solvent resistance than its polycarbonate cousin and captures all particles larger than the precisely controlled pore size on its surface. Sterlitech PETE membrane is ideal for use when analyzing blood samples or particle analysis by microscopy.
Track Etch Membranes FAQ's
Product Characterisics
- 0.2 to 10 µm (micron), sheets and rolls also available
- 13 to 293mm
- Hydrophilic
- Precise pore size