Moisture monitoring in Plastics materials with very low moisture content:
The Sartorious - Omnimark Mark 3HP Quartz-infrared Moisture Analyser provides results in minutes with a higher 0.005% precision and very low standard deviation for heat sensitive materials with moisture as low as 50 ppm.
Mark 3HP conforms to ASTM standard D6980, "Standard Test method for Determination of Moisture in Plastics by Loss in Weight" and results correlate to oven and Karl Fischer coulometric titration with the added advantage of being usable in a production environment, using a large 25 – 50 gram sample, no daily calibration and results in minutes for dynamic
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Application examples in Plastics –
from over 5,000 pre-calibrated resins and thermoplastic materials
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- ABS Crcolac
- ABS Lustran
- Acetal Delrin
- Acrylic Acrylite
- PC Lexan 500
- PC Makrolon
- PBT Celanex
- PBT Celanex
- PBT Valox
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- LCP Zenithe
- LCP Vectra
- HDPE Petrothene
- PP Thermofill
- PU Isoplast
- PSU Udel
- PS Styron
- PETG Eastar
- PCBT Xenoy
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- Nylon 6 Acrylite Ultraflow
- Nylon 6 Capron
- Nylon 6 Durathane
- Nylon 6/6 Zytel
- Nylon 6/6 Chemlon
- Nylon 11 Ristan
- PET Kosa
- PET Traytuff
- PET Rynite
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Application benefits:
- Drying control in thermoplastics and engineering resins
- Many plastic resins being hygroscopic require monitoring routinely
- Moisture will change continuously during manufacturing
- Excess moisture results in processing issues affecting finished parts quality
- Bad parts need regrinding, reuse or scrapped – wasteful rework
- Resin manufacturers defines Maximum moisture content for optimal processing
- Moisture control reduces symptoms of-
- Drooling
- Bubble formation
- Sprayng
- Formation flash
- Surface streaks
- Lower impact and tensile strength
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