Material PPSU

PPSU, or Polyphenylsulfone, is a high-performance thermoplastic polymer that excels in strength, heat resistance, and chemical stability. It is often chosen for demanding applications in industries like medical, aerospace, and electronics.

Chemical Formula: (C15H12O2S)n

Key Features

• High Thermal Resistance: PPSU can withstand continuous use temperatures up to 180°C and repeated steam sterilization without loss of mechanical properties.

• Excellent Chemical Resistance: It resists acids, bases, disinfectants, and cleaning agents, making it ideal for harsh environments.

• Superior Impact Strength: PPSU maintains high toughness and mechanical strength even after repeated sterilization cycles.

• Hydrolysis Resistance: Offers outstanding performance in hot water, steam, and moist conditions, suitable for medical and lab applications.

• BPA-Free & Non-Toxic: Safe for baby products and food contact applications; meets international health and safety standards.

• Good Processability: Supports injection molding, extrusion, and CNC machining for complex and precise parts.

Common Applications

• Medical: Surgical instruments, reusable sterilized components, dental tools, IV connectors

• Baby Care: PPSU baby bottles, sippy cups, feeding containers

• Food Industry: Food-grade fittings, containers, kitchenware

• Laboratory & Pharma: Fluid handling systems, sterilizable vessels

• Industrial & Aerospace: High-temperature components, electric connectors, lightweight structural parts

Material Specifications (Typical Values)

Why Choose PPSU?

• Excellent balance of heat, chemical, and impact resistance

• Long service life under sterilization and cleaning cycles

• Suitable for medical, baby, and food contact applications

• Compliant with FDA, ISO 10993, RoHS, and REACH standards

• Available in various forms: granules, rods, sheets, or custom parts

FAQ – Polyphenylsulfone (PPSU) Material

Q1: What is PPSU material?

A: PPSU (Polyphenylsulfone) is a high-performance thermoplastic known for its excellent thermal stability, chemical resistance, impact strength, and hydrolysis resistance. It is widely used in applications requiring repeated sterilization and high mechanical durability.

Q2: What are the key advantages of PPSU over other plastics like PSU or PEI?

A: PPSU offers higher impact strength and better hydrolysis resistance than PSU and PEI. It also maintains performance after repeated autoclave cycles, making it ideal for reusable medical and baby care products.

Q3: Is PPSU safe for food and baby products?

A: Yes. PPSU is BPA-free, non-toxic, and FDA-compliant, making it suitable for baby bottles, food containers, and other items involving food contact or infant use.

Q4: Can PPSU be sterilized?

A: Absolutely. PPSU can withstand repeated steam sterilization (autoclaving) without degrading in performance, color, or shape. It is one of the most reliable plastics for reusable sterilizable applications.

Q5: What processing methods are compatible with PPSU?

A: PPSU supports injection molding, extrusion, thermoforming, and CNC machining. It is versatile for manufacturing both precision components and high-volume products.

Q6: What temperature can PPSU resist?

A: PPSU has a glass transition temperature of around 220–230°C and a continuous use temperature of approximately 180°C. It can withstand high heat without losing structural integrity.