What is QUADRANT PPSU

In the medical, aerospace, electronic and electrical, and high-end industrial fields, PPSU (polyphenylsulfone) is widely adopted due to its outstanding high-temperature resistance, flame retardancy and mechanical properties. As a globally renowned manufacturer of engineering plastics, QUADRANT offers a variety of PPSU product models to meet the performance and application requirements of different customers. This article will not only compare three representative models - PPSU Unfilled Extruded, LSG PPSU, and PPSU LSG, but also make a horizontal comparison with other common high-performance plastics to help purchasers quickly find the most suitable material solution.

01 | A comprehensive comparison of Kuajun PPSU products

👉 At a glance:

   ✔ Pursuing the highest level of flame retardancy and strength → PPSU Unfilled Extruded

   ✔ Focus on friction performance and low parameter requirements → LSG PPSU

   ✔ It is necessary to balance strength and thermal performance, but the cost is more flexible → PPSU LSG

02 | Product Features Analysis

PPSU Unfilled Extruded

  ・Highlights: High flame retardancy (V-0), high temperature resistance (220°C), excellent electrical insulation (26 kV/mm)

  ・Mechanical Properties: Tensile strength 83 MPa, flexural strength 108 MPa, nearly indestructible unnotched impact strength

  ・Recommended Applications: High-end medical device housings, aerospace connectors, impact-resistant electrical components

LSG PPSU

  ・Highlight: Stable coefficient of friction (0.45)

  ・Recommended applications: Applications requiring friction resistance or surface motion, such as sliding mechanisms and lightly loaded structural parts

  ・Suitable customers: Industries with low requirements for flame retardancy or complete performance

PPSU LSG

  ・Highlight: High mechanical strength (tensile strength 75.8 MPa, flexural strength 107 MPa), excellent impact resistance (133 J/m)

  ・Thermal properties: Glass transition temperature 220°C, melting temperature 260°C, heat deflection temperature 207°C

  ・Recommended applications: Medical device components, structural parts requiring lightweighting while maintaining strength

03 | Comparison of PPSU with other high-performance plastics

Comparative conclusion

  ・Compared with PSU:  Kuajun PPSU has stronger heat resistance and flame retardancy, and better impact strength.

  ・Compared with PEI: PPSU performs better in terms of chemical resistance and toughness, making it particularly suitable for medical disinfection environments.

  ・Compared with PEEK: PEEK has top-notch performance but is expensive. Kuajun PPSU offers comparable heat resistance and flame retardancy, making it a cost-effective alternative.

04 | Application industry scenarios

Medical industry: Surgical instrument handles, sterilized resistant components (recommended: PPSU Unfilled Extruded, PPSU LSG)

Aerospace: Lightweight connectors, flame-retardant and impact-resistant components (Recommended: PPSU Unfilled Extruded)

Electronic and electrical: Insulating parts, precision components for high-temperature environments (recommended: PPSU Unfilled Extruded, PPSU LSG)

Industrial equipment: Friction components, sliding mechanisms (Recommended: LSG PPSU)

05 | FAQ

Q1: What's the difference between PPSU Unfilled Extruded and PPSU LSG?
A1: Unfilled Extruded has a higher flame retardant grade (V-0), stronger electrical insulation strength, and is suitable for high-end fields. LSG, on the other hand, emphasizes mechanical strength and impact toughness, offering better value for money.

Q2: Why does LSG PPSU have fewer parameters?
A2: LSG PPSU is a special application model, mainly used in scenarios with friction performance requirements, so the complete set of mechanical and thermal data is not provided.

Q3: If I want to make a medical device shell, which model should I choose?
A3: PPSU Unfilled Extruded (high flame retardancy and high strength) or PPSU LSG (balancing mechanical performance and cost-effectiveness) is recommended.

Q4: Compared with PEI and PEEK, what are the advantages of PPSU?
A4: PPSU has more advantages in chemical resistance, impact performance and cost control, and is an upgraded choice for PEI and a cost-effective alternative to PEEK.

Q5: Are these models easy to procure in the supply chain?
A5: As a professional trader, our company can supply the QUADRANT Cross-Jun PPSU series for a long time and provide customers with flexible purchasing and customization services.

06 | Conclusión

QUADRANT Cross-Jun PPSU series covers a wide range of materials, from top-grade flame-retardant high-strength to friction performance applications and even more cost-effective comprehensive materials. By comparing it with other plastics, it can be seen that PPSU has unique value in industries such as medical care, aviation, and electrical engineering. As a long-term cooperative trader, our company can provide one-stop PPSU material solutions for purchasers, helping you quickly find the most suitable products.

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