PPSU Name: polyphenylene sulfone (Polyphenylene sulfone resins) PPSU polyphenylene sulfone resin polysulfone (Polysulfone) is referred to as the PSF series of products. It is a new thermoplastic engineering plastic, which refers to the macromolecular compound containing sulfone group and aromatic core in the main chain.


High heat, high impact properties

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Radel (PPSU) provides the highest performance of our sulfone polymers, and has better impact resistance and chemical resistance than polysulfone (PSU) and poly (ether imide) (PEI).
The high heat resistance and excellent hydrolytic stability of Radel PPSU make it an ideal choice for hot water fittings and medical devices that require repeated steam sterilization.
Radel series R-7000 products are specially used inside the aircraft, comply with the strict regulations of the Federal Aviation Administration (FAA) on low heat release, low emission and low toxic gas emissions.

Acudel®Modified type PPSU  Cost advantage for applications with low demand.

main features

The highest thermal deformation temperature is 207 OC
Excellent toughness and impact strength (690 J/m)
Excellent long term hydrolytic stability
Better chemical resistance than PSU and PEI
It can tolerate more than 1000 cycles of steam sterilization (134 0.2MPa) without any obvious loss of property
Flame retardant UL94-V0
The long-term use temperature is 190 RTI
Through the FDA, NSF, ISO10993 and other certification
Unique phenol A (BPA Free)
Typical application

Sterilizing box and sterilizing plate
Dental and surgical instruments
Medical equipment
Aircraft internal components
Air Service Catering vehicle
Hot water fittings
Manifold for piping installation
Food service tray
Bottle / cup
Food containers

Toughness strength
Radel (PPSU) can withstand continuous exposure to humid and high temperature environments, and can still withstand tremendous impact without rupture or fracture.
Using Gardiner dart impact evaluation testing machine at 190 degrees Celsius (375 degrees Fahrenheit) impact strength under thermal aging test piece of 170 hours. Radel PPSU has higher impact strength than PEI, without cracking or fracture.
Gardiner drop dart impact test
At 190 degrees Celsius (375 degrees Fahrenheit) in 170 hours aging test