Polystyrene is a standard polymer ordered from sigma; the pellets size is around 3 mm, and I want them in powder form of uniform size. Please suggest any appropriate method for it.
1. Use a cryogenic grinding system. This system uses liquid nitrogen to freeze the polystyrene pellets, which makes them brittle and easier to grind into a fine powder.
2. Use a hammer mill. This type of mill uses high-speed rotating hammers to crush the pellets into a fine powder.
3. Use a jet mill. This type of mill uses high-pressure air to grind the pellets into a fine powder.
4. Use a ball mill. This type of mill uses grinding balls to crush the pellets into a fine powder.
5. Use a vibratory disc mill. This type of mill uses a vibrating disc to grind the pellets into a fine powder.
6. Use a pin mill. This type of mill uses a series of pins to grind the pellets into a fine powder.