PSU
Polysulfone (PSU) is an amorphous, high-performance specialty thermoplastic. Its molecular backbone consists of sulfone (-SO2-), ether (-O-), and phenylene groups. The resin exhibits a characteristic amber transparent appearance.
This natural-grade PSU is free from fillers, toughening agents, and other modification additives. It retains the intrinsic properties of the base resin to the maximum extent and serves as the foundational base resin for other modified grades.
Technical Parameters
Item | Value |
Density (g/cm³, ISO 1183) | 1.24 |
Water Absorption (%, 24h, ISO 62) | 0.30 |
Tensile Strength (MPa, ISO 527) | 70-80 |
Elongation at Break (%, ISO 527) | 50-100 |
Flexural Strength (MPa, ISO 178) | 106 |
Flexural Modulus (GPa, ISO 178) | 2.6-2.7 |
Notched Izod (kJ/m², ISO 180) | 6.8-8.5 |
HDT (°C, 1.82 MPa, ISO 75) | 174 |
Tg (°C, DSC) | 187 |
Continuous Service Temp. (°C) | -50 ~ +180 |
Flammability (UL94, 0.75 mm) | V-0 |
LOI (%) | 30 |
Light Transmittance (%, 3 mm) | 75-88 |
Refractive Index (nD) | 1.633 |
Dielectric Strength (kV/mm, IEC 60243) | 30 |
Volume Resistivity (Ω·cm, IEC 60093) | ≥ 1×10^16 |
Molding Shrinkage (%) | 0.6-0.7 |
MFR (g/10min, 343°C/2.16kg) | 6.5-17 |
Features:
- High transparency: ~75-88% light transmittance with amber hue, enabling visual inspection of internal flow
- Outstanding heat resistance: continuous service -50°C to +180°C, Tg ~187°C, HDT (1.82 MPa) ~174°C
- Superior hydrolytic stability: withstands repeated steam sterilization (134°C / 2 bar), hot water, acids and alkalis - key advantage for medical and food-contact uses
- High strength and rigidity: tensile strength 70-80 MPa, flexural modulus 2.6-2.7 GPa, excellent dimensional stability
- Intrinsic flame retardancy: UL94 V-0 at 0.75 mm, LOI ~30%, halogen-free
- Broad chemical resistance: resistant to acids, alkalis, salts and aliphatic hydrocarbons; not resistant to concentrated sulfuric/nitric acid, ketones, aromatics, chlorinated solvents
- Good electrical performance: volume resistivity ≥ 1×10^16 Ω·cm, high dielectric strength - suitable for precision E&E applications
- Easy processing: injection, extrusion and blow molding; pre-drying at 160-180°C for 4-6 h required
Typical Applications:
1）Medical dialysis membrane housings
2）Surgical instrument handles
3）Endoscope components
4）Food processing equipment
5）Dairy and beverage piping
6）Valves and pump housings for drinking water and pure water systems
7）Transparent sight glasses and water level gauges
8）Aerospace interior components
9）Electronic connectors and coil bobbins
10）Laboratory ware
keywords: PSU
classification: Product
Polysulfone (PSU) is an amorphous, high-performance specialty thermoplastic. Its molecular backbone consists of sulfone (-SO2-), ether (-O-), and phenylene groups. The resin exhibits a characteristic amber transparent appearance.
This natural-grade PSU is free from fillers, toughening agents, and other modification additives. It retains the intrinsic properties of the base resin to the maximum extent and serves as the foundational base resin for other modified grades.
Technical Parameters
Item | Value |
Density (g/cm³, ISO 1183) | 1.24 |
Water Absorption (%, 24h, ISO 62) | 0.30 |
Tensile Strength (MPa, ISO 527) | 70-80 |
Elongation at Break (%, ISO 527) | 50-100 |
Flexural Strength (MPa, ISO 178) | 106 |
Flexural Modulus (GPa, ISO 178) | 2.6-2.7 |
Notched Izod (kJ/m², ISO 180) | 6.8-8.5 |
HDT (°C, 1.82 MPa, ISO 75) | 174 |
Tg (°C, DSC) | 187 |
Continuous Service Temp. (°C) | -50 ~ +180 |
Flammability (UL94, 0.75 mm) | V-0 |
LOI (%) | 30 |
Light Transmittance (%, 3 mm) | 75-88 |
Refractive Index (nD) | 1.633 |
Dielectric Strength (kV/mm, IEC 60243) | 30 |
Volume Resistivity (Ω·cm, IEC 60093) | ≥ 1×10^16 |
Molding Shrinkage (%) | 0.6-0.7 |
MFR (g/10min, 343°C/2.16kg) | 6.5-17 |
Features:
- High transparency: ~75-88% light transmittance with amber hue, enabling visual inspection of internal flow
- Outstanding heat resistance: continuous service -50°C to +180°C, Tg ~187°C, HDT (1.82 MPa) ~174°C
- Superior hydrolytic stability: withstands repeated steam sterilization (134°C / 2 bar), hot water, acids and alkalis - key advantage for medical and food-contact uses
- High strength and rigidity: tensile strength 70-80 MPa, flexural modulus 2.6-2.7 GPa, excellent dimensional stability
- Intrinsic flame retardancy: UL94 V-0 at 0.75 mm, LOI ~30%, halogen-free
- Broad chemical resistance: resistant to acids, alkalis, salts and aliphatic hydrocarbons; not resistant to concentrated sulfuric/nitric acid, ketones, aromatics, chlorinated solvents
- Good electrical performance: volume resistivity ≥ 1×10^16 Ω·cm, high dielectric strength - suitable for precision E&E applications
- Easy processing: injection, extrusion and blow molding; pre-drying at 160-180°C for 4-6 h required
Typical Applications:
1）Medical dialysis membrane housings
2）Surgical instrument handles
3）Endoscope components
4）Food processing equipment
5）Dairy and beverage piping
6）Valves and pump housings for drinking water and pure water systems
7）Transparent sight glasses and water level gauges
8）Aerospace interior components
9）Electronic connectors and coil bobbins
10）Laboratory ware
DOWREN NEW MATERIAL (HENAN) CO.,LTD
TELL：Selina.Liu +86-0393-8993626 / +86 18137458807
ADD：150 meters north of the intersection of Zhongyuan Road and Pushang Road, Puyang City,Henan Province
EMAIL：dowren@dowren.com
WhatsApp (+86 18137458807)