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Filgen - Vacuum Staining System For Polymer TEM/SEM Imaging

Filgen

Filgen - Vacuum Staining System For Polymer TEM/SEM Imaging High performance and multi-functional polymers have important technical roles for many fields. Analysis of morphology for multi-component polymers through TEM / SEM image is critical to develop these high performance polymers. With good staining technique, new polymer morphology can be well-observed. Vacuum staining system by Filgen is an excellent solution for your new polymer material research and development.
 
  • Application
  • Features
  • Specification
  • Heat Option
  • Sample Chamber Option
  • Heavy metal staining for new polymer materials to get contrast for TEM/SEM image
  • Solidifying sample for ultra microtome slice for TEM/SEM imaging

Why heavy metal stain for TEM / SEM polymer imaging  ?

  • Polymer materials are light elements (C,H,N,O). Electron beam pass through these elements and electron beam scattering does not happen at these elements.
  • With heavy metal staining, electron beam is scattered differently at these elements. You can see structure of new polymer materials with good contrast.
  • TEM: stained part become dark color
  • SEM: stained part become bright color

Application examples:

  • Polymer
  • Film
  • Lubber
  • Adhesive
  • Toner
  • Paint
  • Film for battery
  • Insulation material for semi-conductor
  • Safe stain in closed system for Osmium tetroxide and Ruthenium tetroxide
  • Excellent stain process control by good vacuum and gas system
  • Easy auto process by touch panel instruction
  • Heating option up to 70 degrees C for better Osmium tetroxide staining
  • Gas density & temperature for 4 chambers set separately
  • Hygroscopic sample staining possible in vacuum
  • Solidifying sample for ultra microtome slice
  • SEM Charge-up prevention by Ruthenium tetroxide



Only for RuO4  

Some polymers can be stained better in higher temperature because molecular motion can be more active and chemical reaction can be more accelerated.

  • Maximum temperature : 70C ( most of polymers have heat resistance up to 70C )
  • Temperature for each chamber can be set separately (heater and temperature sensor located under 4 chambers)
  • No cooler in the system
  • Only for OsO4 (RuO4 is very reactive)

Good example : Nylon and PVA (polyvinyl alcohol) were well stained at 70C in the system, compared to room temperature

Atmosphere non-exposure chamber

  • Useful to avoid samples exposed to air including pre-staining process and post-staining process
  • Small chamber (5ID x 6H mm) good for higher density staining gas
  • Middle chamber (47ID x 15H mm)

Sample grid holder

  • Prevention of grid dispersion during vacuuming
  • 8 grids set in 45mm diameter stage