Analysis of propylene and polypropylene
Thread Content
Non-professional analysts would like some guidance regarding several analysis parameters: 1. What is the most accurate method for detecting trace amounts of water in propylene (around 10PPM), and what considerations should be taken into account during the analysis process?； 2. What parameters are generally analyzed for polypropylene powder, and what ranges are typically maintained for them? ； 3、
We use Karl Fischer titration; it’s quite difficult to carry out, and you can refer to standards for guidance
Is it possible to use a dew point meter to measure moisture content online? Additionally, you can check what methods are specified in the national standards; these standards provide explanations for each analysis item
What we need now is a reliable analysis method with lower error
How is gas sampled and analyzed? Solve
Sampling from small gas cylinders: if enough is taken, another pressure regulator can be installed
Karl Fischer; accurate. A dew point meter won’t work – complete vaporization is required.
The water content in propylene is generally determined using a dew point meter, with flash evaporation being required beforehand. Or consider using the gas moisture meter newly developed by Wantong (though it is a bit expensive). General analyses of polypropylene powder include melt index (MFR), particle size, bulk density, and xylene solubility; depending on the grade, % ethylene content and RCC2 (bound ethylene) are also determined