What is PPSU Polyphenylsulfone?

PPSU (chemical symbol: PPSU) is a transparent engineering plastic with a characteristic amber tint, also available in black. Regardless of the color, the material maintains consistent properties. Compared to PSU plastic, PPSU offers superior resistance to chemical impacts and hydrolysis, enabling it to endure more sterilization cycles. With its high dimensional stability, flame resistance, and low smoke generation, PPSU is widely used in industries that require long-lasting, reliable components.

Applications of PPSU Polyphenylsulfone

Medical and Pharmaceutical Industry

PPSU excels in environments requiring repeated sterilization, making it ideal for producing:

• Handles for medical, dental, and surgical instruments
• Endoscopic tips and fluid transfer couplings
• Fittings, medical tool heads, and sterilization trays
• Laboratory equipment and caps

Electronics Industry

Due to its excellent dielectric properties and heat resistance, PPSU is used for:

• Electronic device casings
• Insulation components

Water and Wastewater Treatment

With its high resistance to hot water and steam, PPSU is suitable for:

• Components used in water purification systems
• Fittings for high-pressure pipelines

Key Features of PPSU Polyphenylsulfone

Characteristics and Benefits

• Good machinability: Easily thermoformed, welded, and glued, making it versatile for various manufacturing processes.
• High heat resistance: Continuous operating temperature range from -50°C to +180°C, with short-term resistance up to +210°C.
• Excellent chemical resistance: Resistant to diluted acids, alkalis, oils, fats, gasoline, and alcohols.
• Flame-resistant: Classified as V0 according to UL 94 standards, ensuring safety in high-risk environments.
• Low smoke generation: Ideal for use in environments where fire safety is critical.
• Mechanical strength: Offers outstanding stiffness, toughness, and impact resistance, even at low temperatures.
• Sterilization-friendly: Can withstand repeated sterilization cycles with gamma rays, X-rays, ethylene oxide, hot air, and steam without degrading.

Dimensions

PPSU sheets and rods are available upon special order in the following dimensions:

	Thickness (mm)	Width (mm)	Length (mm)	Diameter, Ø (mm)
Sheets	10 – 30	620	3 000	–
Rods	–	–	1 000; 3 000	20 – 40

PPSU Polyphenylsulfone offers unmatched performance in applications requiring high chemical resistance, durability, and repeated sterilization. It is particularly valuable in medical, electronics, and water treatment industries where reliability under extreme conditions is paramount.