Solvay's PSU P-3703 NT 11 vs PSU P-1710 NT 15

Polysulfone (PSU) is a class of engineering plastics that combines high-temperature resistance with structural stability. It is commonly used in electronic appliances, automotive parts, and food contact products. Solvay's PSU P-3703 NT 11 and PSU P-1710 NT 15 are both high-grade materials in this family, but they differ in processing adaptability, flame retardancy, and some performance indicators. This article provides an in-depth comparison and analysis of these two materials to provide a reference for purchasing decisions.

01 | Commonalities

Material Basics

  ・Both are transparent granular PSU materials with excellent clarity, suitable for applications requiring a balance between appearance and performance.
  ・Both are compatible with injection molding and extrusion processes, offering strong processing adaptability.

Mechanical Properties

  ・Tensile strength is approximately 70 MPa, flexural strength is 106 MPa, and flexural modulus is close to 2690 MPa, demonstrating similarly stable strength and stiffness.
  ・Notched impact strength is 69 J/m, indicating similar toughness.

Thermal Performance

  ・With a heat deflection temperature (HDT) of 174°C, it maintains dimensional stability at high temperatures, making it suitable for electrical, appliance, and automotive electronics applications.

Electrical Properties

  ・Both have a dielectric strength of 17 kV/mm and a volume resistivity in the 10^16 Ω.cm range, offering excellent electrical insulation performance.
  ・The dielectric constant is stable at around 3.0, making it suitable for the electrical design requirements of electronic and electrical components.

Ứng dụng tiêu biểu

  ・Both are suitable for a wide range of applications, including household appliance components, electrical components, electronic and electrical applications, food service, industrial components, valves, cookware, and pipes.

02 | Comparison

03 | Advantages and Disadvantages

Nguồn P-3703 NT 11

Thuận lợi

  ・Higher flowability (MFR 17 g/10min), making it suitable for injection molding complex, thin-walled parts or detailed, precision components.
  ・Clearly marked as food contact and drinking water contact grade, it offers enhanced safety for use in kitchen appliances and drinking water systems.
  ・Flame retardant performance (HB) is achieved even at a thin thickness (1.5mm).

Disadvantages

  ・Glow-wire performance data is not provided, making it somewhat insufficient for certain applications requiring stringent electrical safety certifications.
  ・V-0 flame retardancy is only achieved on thicker products (>4.5mm).

PSU P-1710 NT 15

Thuận lợi

  ・Excellent glow-wire performance (850–960°C), making it suitable for safety-critical applications such as electrical components and appliance enclosures.
  ・Achieving UL94 V-0 at a thicker thickness (6mm) provides more stable electrical flame retardancy.
  ・Certifications include ISO 10993, NSF, and RoHS, extending its scope to medical and water-contact grades.

Disadvantages

  ・Lower flowability (MFR 6.5 g/10min) makes it less convenient than P-3703 for processing complex molds or thin-walled products.
  ・Appearance transparency and clarity are not particularly emphasized in applications.

04 | Application Recommendations

PSU P-3703 NT 11: Suitable for drinking water system components, kitchen appliances, food contact utensils, and thin-walled, complex injection molded parts, especially in home appliances and consumer electronics.

PSU P-1710 NT 15: Recommended for electrical components, automotive electronics, battery modules, and medical and industrial equipment components, particularly those requiring higher flame retardancy and electrical safety.

05 | Selection Recommendations

  ・If the purchaser prioritizes process fluidity and food and drinking water safety certifications, then the P-3703 NT 11 is preferred.

  ・If the purchaser prioritizes flame retardancy, electrical safety, and medical certifications, then the P-1710 NT 15 is preferred.

06 | Similar Recommendations

In addition to the P-3703 NT 11 and P-1710 NT 15, Juyaun also offers a variety of PSU series materials:

07 | Juyuan's Supply Advantages

As an international plastic raw material trader, Juyuan provides a stable supply of PSU, enabling global buyers to quickly find suitable solutions for food-grade, medical-grade, and electrical-grade applications. We not only guarantee the stable delivery of raw materials, but also provide customers with material selection support, alternative solution recommendations and international trade supporting services.

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