PPSU / Polyphenylsulphone
This unreinforced amorphous thermoplastic material has a lot
of features in common with PEI and PSU.All three offer a combination of excellent
mechanical, thermal and electrical properties.
MAIN CHARACTERISTICS
* High maximum allowable service temperatures in air (180°C, 170°C and 150°C continuously for PPSU 1000, PEI 1000 and PSU 1000 respectively)
* High mechanical strength, stiffness and creep resistance, also at elevated temperature
* Excellent hydrolysis resistance (suitable for repeated steam sterilisation)
* High toughness, even at low temperatures
* Physiologically inert (suitable for food contact)
* Very good dimensional stability
* Translucent, non-optical quality (except for PPSU 1000 which is black)
* Very good resistance against high energy radiation (gamma and X-rays)
* Good electrical insulating and dielectric properties
PPSU 1000 (black) [PPSU]
PPSU 1000 stock shapes are produced from RADEL® R resin. This material offers a better impact strength and chemical resistance than PSU 1000 and PEI 1000. PPSU 1000 also has superior hydrolysis resistance as measured by steam autoclaving cycles to failure. In fact, this material has virtually unlimited steam sterilisability. This factor makes it an excellent choice for medical devices which are subjected to repeated steam autoclaving. Additionally, the raw material used for the production of PPSU 1000 stock shapes is USP Class VI compliant making it a very popular material for medical * and pharmaceutical industries (e.g. sterilisation trays, dental and surgical instrument handles, orthopaedic implant trials and fluid handling coupling and fitting applications).
* Quadrant Engineering Plastic Products does not allow, approve or support human implantable applications utilising this material.
