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Morpholine for Autoclave Sterilization: Protection from Corrosion & Material Resistance

Large medical facilities use a central steam supply with morpholine to protect metal pipes from corrosion. Discover the resistance levels of materials under autoclave sterilization cycles using morpholine. Learn about field experience with Radel R and Polyphenyl Sulfone.

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Morpholine for Autoclave Sterilization: Protection from Corrosion & Material Resistance

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  1. Morpholine • Large medical facilities use a central steam supply to provide steam to all sterilizers. • Morpholine is amine based additive to steam supply systems to protect metal pipes from corrosion. • Morpholine will aggressively attack all amorphous polymers except Radel R.

  2. MORPHOLINE/AUTOCLAVE STERILIZATION RESISTANCE • 50 PPM Morpholine - Constant Stress - Weighted Cantilever Beam Steam Cycle - 30 Min. @ 270oF (132oC) Applied Stress Total Description (PSI) Cycles Appearance Radel R-5000 1,000 2,000 + Few Tiny Cracks (1,500+) 500 2,000 + Few Tiny Cracks (1,500+) Ultem 1000 1,000 155 Rupture Cracks (50) 500 289 Rupture Cracks (75)

  3. MORPHOLINE/AUTOCLAVE TEST PROCEDURE Front View of Apparatus Appearance of test specimens prior to autoclave exposure. Front View of Apparatus Appearance of test specimens after several autoclave cycles.

  4. FIELD EXPERIENCE • Amoco’s experience shows Radel R Polyphenyl Sulfone can be autoclaved for at least 2000 cycles, without any significant deterioration in properties. • Field reports from medical trays and containers indicate suitability up to 4000 autoclaves.

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