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Thermal Analysis Techniques for Polymers, Part 1: DTA, TMA, and DMA


In this blog post, we are going to start a discussion about the most common thermal analysis techniques used to investigate the properties of polymers.  In part 1 of this series, our focus will be on:

  • differential thermal analysis
  • thermomechanical analysis; and
  • dynamic mechanical analysis 

This discussion will include how these tests are performed and what kind of properties can be determined from the resulting data.

dye-sensitized solar cellImage Source

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Importance of Spring Energizer Design in Cryogenic Sealing

 
Cryogenic seals are required in a variety of industries, including LNG fueling systems, specialty gas manufacturing, cryo coolers, radio astronomy, scientific instrumentation, pharmaceutical research, and many more.  One of the most reliable sealing solutions for cryogenic applications are polymer spring-energized seals.  In this blog post, we are going to review spring-energized seals and then discuss what the recommended spring configuration is for cryogenic applications.

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The 3 Most Popular Spring Energized Seals Materials for Cryogenic Sealing Applications

Cryogenic sealing applications are challenging, to say the least.  One popular solution is the use of spring-energized seals, and in this blog post we are going to talk about the 3 post popular materials used for spring-energized seals for cryogenic applications: PTFE, modified PTFE, and UHMW PE.

Cryogenic PTFE Spring Energized Seal

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Key Advantages of PTFE for Bellows


Bellows can perform a variety of tasks in a mechanical system, including vibration dampening, absorption of displacement in a piping system, compensating for misplacement and misalignment, and the protection of brittle components (glass, graphite, glass-lined steel, etc.).  

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