What is the material and use of polyurethane foam

What is the material and use of polyurethane foam

 

Polyurethane foam is a foam material that has been expanded by plastic particles. Polyurethane foam has the characteristics of excellent compression deformation resistance, high density, and fine and uniform cell structure. It is widely used in the sealing and shock absorption of components in communications, computers and household appliances. Polyurethane foam materials maintain integrity and effectiveness even after prolonged exposure to changing temperatures. Ideal for use in potentially extreme environments. Various applications including heat, vibration, dust, dirt and vibration.

 

The main uses of foam:

1. Panel interlayer: function - no pollution, prevent loosening, prevent impact noise, prevent sticking.

2. Around the LED: prevent light leakage, absorb shock, and increase air tightness.

3. The lower periphery of the PCB: shock absorption, vibration absorption, gap filling, heat insulation effect.

4. Keyboard gasket: rebound, no pollution, good dimensional stability.

5. Around the battery: no pollution, absorb impact sound, improve air tightness.

6. Foot pads: good friction, no pollution, good dimensional stability.

7. The rear pad of the disk drive: absorbs vibration, prevents impact noise, and improves air tightness.

8. Friction pad: good friction, no pollution and good dimensional stability.

9. Disc cover cushion: absorb vibration, block motor noise, shockproof and improve air tightness.

10. Around the speaker: prevent noise and fill the gap.

11. Around the LCD: dustproof, absorbing shock, filling gaps, improving shading.