Hello.
I would like to ask and get some advice for basic question..
I have set up an experiment to flow solvent (ethylene glycol) consisting of polymer and metal (silver)to react at specific temperature inside the glass capillary tube.The inner diameter of glass capillary tube is approximately 1.2mm.
As the reaction proceed, I found that many substances (probably mixture of polymers and metals) clung to the glass capillary tube and eventually blocked the entrance of the other end.
Although I decreased the solid contents of liquid, I was able to observe small quantity of substances clinging as liqud flows inside the glass capillary tube. Will hydrophilicity of glass make this phenomenon happen?
What would be the reason or general science here for substances sticking to glass capillary tube at high temperature (over 100 degrees celcius) when the solution flows inside the glass capillary tube?
Hello,
As we know that Capillary rise is due to surface tension of liquids which depend on the factors like viscosity, temperature etc.
I think Bernoulli's theorem is the answer for your above question
Is the particulate matter sticking to the sides of the tube as the liquid solvent is flowing, or are the particles left behind after the flow stops? Also, are the particles mostly single, or are they agglomerating?
It is a common phenomenon, and i think you should modified the tube with low surface tension materials by CVD to make the surface of the tube more hydrophobic.
- Badges
- Science topic
- Similar topics
- Mathematical Sciences
- Statistics
- Probability
- Probability Theory
- Reliability