I have to identify the water content of different plastics by drying it then using the formula: initial weight before drying/final weight after drying. I have been told that using an oven dryer might melt my plastic samples and I have been advised to use air or sun drying. What is the best drying method that will not disintegrate my samples?
I propose to try the vacuum drying oven. You need to select low temperature. You can put some amount of silica gel besides the sample that allows absorbing the moisture of the atmosphere of oven.
You can try a normal hot air oven dryer but you need to work at moderate temperatures and under low humid atmosphere using dehumidifiers.
Oven drying with forced air circulation and low temperature (
I would suggest vacuum drying. It does not need any heat to be applied. Reducing the pressure allows reducing the boiling temperature and increasing evaporation, so you can increase evaporation significantly at room temperature.
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