What is Polysulfone Polymer

With the ever-increasing application of engineering plastics, polysulfone polymers are widely used in the electronics, automotive, and industrial sectors for their heat and chemical resistance and stable mechanical properties. SABIC's PSU GFL36L (GFL-4036 LE), a composite material reinforced with glass fiber and PTFE, not only meets the dual requirements of high strength and low friction, but also provides manufacturers with a reliable material solution for high-temperature and complex working conditions.

01 | Material Highlights and Characteristics

PSU GFL36L(GFL-4036LE) is a composite material based on polysulfone polymer and modified synergistic by 30% glass fiber and 15% PTFE. Its design intention is to balance structural strength, wear resistance and dimensional stability, and it has unique advantages among engineering plastics:

  ・Enhancing toughness and rigidity: Glass fiber filling endows the material with a higher flexural modulus and creep resistance, enabling it to remain stable in harsh mechanical environments.

  ・Wear resistance and low friction: The introduction of PTFE significantly reduces the coefficient of friction, making it suitable for components in long-term friction contact.

  ・Heat resistance and low water absorption: PSU itself has a relatively high heat distortion temperature and moisture resistance, enabling the products to maintain their performance in high-temperature and humid environments.

  ・Dimensional stability: Low shrinkage rate and low coefficient of expansion ensure the forming accuracy of complex-structured parts.

02 | Polysulfone Polymer PSU GFL36L(GFL-4036LE) Data Sheet

Looking for the full datasheet? Contact us for more technical information.

03 | Typical Application Fields

This material is not only widely used in the electronic and industrial fields of traditional PSU, but also, due to its composite modification, has been extended to more demanding engineering fields:

  ・Electronic displays and industrial electrical components: Heat resistance and insulation performance ensure stable operation of the products.

  ・Friction and moving parts: such as sliding bearings, gears, and sealing rings, maintain low wear during long-term use.

  ・Automotive and aviation parts: Can maintain strength and stability in high-temperature and vibrating environments.

  ・Medical and laboratory equipment: Chemical resistance and dimensional stability meet high-precision requirements.

04 | Process and Processing Compatibility

PSU GFL36L(GFL-4036 LE) is mainly produced by injection molding process.

  ・Processing advantages: Moderate melt fluidity, suitable for the production of complex molds and precision parts.

  ・Part performance: Low molding shrinkage rate, reducing the risk of deformation; Its high heat resistance enables it to be formed at higher temperatures without losing stability.

  ・Application extension: It still demonstrates good compatibility in scenarios that require secondary processing (such as surface coating and welding).

05 | Innovation and Industry Competitive Advantage

In the polysulfone polymer market, the innovation of PSU GFL36L lies in the synergistic reinforcement of glass fiber and PTFE. Compared with traditional PSU materials, this model is more suitable for scenarios that have dual requirements for wear resistance and structural performance

  ・Compared with pure PSU: It is more impact-resistant and has a lower coefficient of friction.

  ・Compared with other engineering plastics (such as PEEK and PAI), it has more advantages in terms of cost and processability, while maintaining excellent thermal mechanical properties.

This kind of compound strategy makes it more competitive in the electronics industry, transportation and precision manufacturing fields.

06 | Customer Feedback

Feedback from terminal manufacturers indicates:

  ・Electronic equipment suppliers recognize its stability in high-temperature environments.

  ・Mechanical parts manufacturers pay attention to its low wear characteristics, which significantly extends the service life of the parts.

  ・International customers generally evaluate that this material achieves a good balance between performance and cost, making it suitable for large-scale procurement and application.

07 | Frequently Asked Questions (FAQ)

Q1: Is PSU GFL36L suitable for long-term friction motion parts?
A: Yes, PTFE modification significantly reduces the coefficient of friction and is suitable for applications such as bearings and sliding guides.

Q2: Can this material be used for high-temperature electrical components?
A: Fully applicable. Its heat distortion temperature exceeds 180°C, making it suitable for high-temperature operating environments.

Q3: Compared with traditional PSU, is the molding process more complex?
A: No, injection molding remains the main process. Adjusting the parameters can meet the requirements.

08 | Similar Recommendations

If your application requirements cover different performance demands, we recommend the following polysulfone polymer series:

09 | Juyuan's Advantages in Foreign Trade Supply

As an international supplier with 24 years of experience in the trade of plastic raw materials, Juyuan is committed to providing customers with stable supply sources, professional selection guidance and efficient logistics services

  ・Multi-channel procurement guarantee: Avoid the risk of single source and ensure the stability of the supply chain.

  ・Professional technical support: Assist customers in material selection and processing technology optimization.

  ・Global service network: Covering major manufacturing bases in Asia, Europe, America, etc., to meet the needs of cross-regional customers.

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