We know the method of measuring the contact angle of the product on the solid plane, but we have doubts about the contact angle measurement of the powder. Will the powder be absorbed when it hits the droplet? How is this measured? Sindin Precision tells you!
Powder contact angle measurement: (This measurement uses Sindin SDC-200S contact angle measuring instrument)
First of all, the different conditions of the powder, if the powder material is hydrophobic, the powder material can be measured by ordinary contact angle measuring instruments; if the powder is a hydrophilic material but not very absorbent, it needs to be pressed with a tablet machine and then used to contact angle measuring instrument; if the powder is a highly absorbent material, it is necessary to measure the contact angle through dynamic video. The contact angle measuring instrument will record the whole process of the change of the contact angle, and then calculate the contact angle through software fitting. The contact angle measuring instrument of Sindin Precision measures the end of the droplet and the measurement data comes out, because Sindin Precision has the function of online contact angle analysis, which is not available in other brands!
