Moisture Content Testing
Moisture content testing confirms that hygroscopic recyclate is dry enough to process without hydrolytic degradation or defects.
Moisture Content Testing
Polymers such as PET and polycarbonate absorb moisture, which can cause chain scission and defects during melt processing. Moisture testing verifies that material is dried below the level required for reliable processing.
How we handle it, step by step
Confirm whether the polymer is hygroscopic.
Take a representative sample after drying.
Determine moisture content by a suitable method.
Recommend drying conditions to meet targets.
Your deliverables
Moisture Content Testing — questions we get
Which recyclates need drying?
Hygroscopic polymers like PET, PC and nylon require drying; polyolefins such as PE and PP are far less sensitive.
What happens if PET is wet?
Processing wet PET causes hydrolytic degradation, lowering molecular weight and part strength.
Keep exploring Recycled Polymer
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