What is the difference between medical laser film, inkjet film and thermal film?
Medical laser film: The structure is the base protective layer (binding layer) of photosensitive emulsion, in which the color laser film is divided into protective layer, upper photosensitive...
PFA and PTFE are the most common fluorinated polymers produced by dupont
PFA PFA is short for perfluorooxygenyl, or Teflon under the DuPont trademark?PFA.PFA has a low coefficient of friction, so it has excellent non-viscous properties.It is a fairly soft polymer with...
What is the principle of heat exchanger?
Piece of corrugated plate heat exchanger due to the plate bending surface special function make fluid along the narrow channel flow to break the speed change in fluid velocity (Rc = 200) has a strong...
Application of plate heat exchanger
A. refrigeration: used as a condenser and evaporator. B. Hvac: intermediate heat exchangers used with boilers, intermediate heat exchangers for high-rise buildings, etc. C. Chemical industry: soda...