Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by charcinders

  1. charcinders

    What is the plasticiser used in nylon tubing?

    Thanks Matt. BBSA is "almost insoluble in water" so it's not that. I'm pleased about that as BBSA is a neurotoxin! This stuff wipes off with a damp cloth. When I looked at the dates on it it's about 2 years old (doesn't time fly...) and it's been stored in a warm place, so that could be a...
  2. charcinders

    What is the plasticiser used in nylon tubing?

    Thanks Pat. It has a very bitter taste (yes, I couldn't resist licking it) which ties in with it being caprolactu[a]m. Interestingly the makers, Copely, recommend it for the transfer of food substances and liquids. Maybe they treat the inner surface in some way to stop the plasticiser leaking...
  3. charcinders

    What is the plasticiser used in nylon tubing?

    I have some "extraflex" nylon pneumatic tubing which is quite nice for connecting components inside equipment because of its flexibility. I have noticed that after a few months it gets a coating of what I assume is plasticiser on it. You can't see it but you can feel it - it's greasy / sticky, a...
  4. charcinders

    Definition of co-energy

    Related to my previous post - Can anyone tell me the meaning of the term co-energy, with respect to a magnetic system? It vaguely rings a bell from my school physics many years ago, but I couldn't find a definition anywhere on the web. Even Wikipedia doesn't have an opinion, which is a first...
  5. charcinders

    Question for Infolytica MagNet users

    I have downloaded the trial version of this excellent software, and have been having fun designing an electromagnetic actuator. I want to simulate a static DC current flowing in the coil. Using a simple ACDC current source the parameters are magnitude (in Amps rms) and phase (in degrees). The...
See more

Part and Inventory Search

Back
Top