Custom Industrial Parts PEI (Polyetherimide) - - Ruixing

   - Continuous Use Temperature:

Up to 170°C (338°F).

   - Heat Deflection Temperature (HDT):

200°C (392°F) at 1.8 MPa.

2. Mechanical Strength:

   - Tensile Strength: 110 MPa.

   - Flexural Strength: 170 MPa.

   - Modulus of Elasticity: 3.6 GPa.

3. Chemical Resistance:

   - Resistant to hydrocarbons, alcohols, and halogenated solvents.

   - Limited resistance to strong acids and bases.

4. Electrical Properties:

   - Dielectric Strength: 830 V/mil.

   - Volume Resistivity: 1.0 × 10^17 ohm-cm.

5. Flammability:

   - UL94 V-0 rating, indicating good flame retardancy.

Advantages of PEI:

1. High Thermal Stability:

   - Suitable for applications involving high temperatures without losing mechanical integrity.

2. Excellent Mechanical Properties:

   - High tensile and flexural strength provide durability and resistance to deformation.

3. Chemical Resistance:

   - Good resistance to a variety of chemicals, making it suitable for harsh environments.

4. Electrical Insulation:

   - Superior dielectric properties make it ideal for electrical and electronic components.

5. Flame Retardancy:

   - Inherent flame resistance enhances safety in applications requiring high fire safety standards.

Disadvantages of PEI:

1. Cost:

   - Higher material cost compared to other engineering plastics.

2. Machining Challenges:

   - Requires precise machining techniques due to its hardness and brittleness.

3. Limited Resistance to Acids and Bases:

   - Not suitable for environments with strong acids and bases.

4. Moisture Absorption:

   - Can absorb moisture, potentially affecting dimensional stability in humid conditions.

2. Aerospace Industry:

In aerospace applications, they are used in fuel management systems and hydraulic control systems. Their ability to withstand high temperatures and mechanical stress makes them suitable for critical aerospace components, such as fuel distribution systems in aircraft engines.

3. Chemical Processing:

In the chemical processing industry, they are employed in chemical reactors and processing equipment. Their resistance to a wide range of chemicals makes them ideal for use in systems that handle aggressive substances, ensuring longevity and reliability.

4. Semiconductor Manufacturing:

The semiconductor industry uses them in etching and deposition equipment. Precision machining is crucial here to maintain the high standards required for semiconductor fabrication, ensuring consistent performance and minimal contamination.

5. Food and Beverage Industry:

In food and beverage processing, they are used in dispensing and packaging equipment. Their ability to handle a range of temperatures and resist chemical cleaning agents makes them suitable for maintaining hygiene and operational efficiency.

6. Pharmaceutical Industry:

Pharmaceutical manufacturing relies on them in drug formulation and packaging machinery. Precision CNC machining ensures that these components meet the necessary standards for drug safety and efficacy, supporting consistent and reliable production processes.