What happens to Polyurethane Tubing exposed to temperatures closed to that of liquid nitrogen?Need info!TQ!
The tubing will be used to supply air to a pneumatic cylinder system. The pneumatic system will be exposed to liquid nitrogen. I have found out that the range of temperature the tube can be exposed to is approximately -40 to 60 degree Celsius. I am trying to find out what would happen to the tube and how long it would take to reach that state/condition when it is exposed to temperatures below -40 degree Celsius.(or close to that of liquid nitrogen). Any info would be helpful. Links to websites would be much appreciated.
Since Nitrogen boils at 77.2K [1] -40 to -60 C is significantly warmer than liquid nitrogen so chilling the tubing down to those temperature.
If you are looking for the effects of chilling materials down liquid nitrogen temperatures and want websites try searching for a website with the phrase “liquid Nitrogen’s effects on materials”
Also look for websites that will give you the glass transition temperature of materials. This is the point when the material becomes brittle and will readily shatter when hit with an impact.
Niel Leon
engineering.com
