E-glass fabric is woven from E-glass fibers characterized by ultra-low alkali oxide content (<1%), providing superior electrical insulation and mechanical reinforcement.
E-glass cloth: Predominantly used for electrical insulation due to low alkali content.
T-glass cloth: Moderate alkali oxides, optimized for chemical/environmental resistance.
Q-glass cloth: High alkali content, employed in specialized durability applications.
PCB Reinforcement: Forms rigid structural base for printed circuit boards.
Insulation Layer: Prevents electrical leakage between conductive traces.
Thermal Stability: Maintains integrity under high-temperature soldering processes.
| Property | E-Glass | S-Glass |
|---|---|---|
| Alkali Content | <1% (ultra-low)1 | ~0.5% (lower) |
| Tensile Strength | Moderate (≈3,400 MPa) | High (≈4,600 MPa) |
| Primary Use | Electronics, general composites | Aerospace, ballistic armor |
| Cost | Lower | Significantly higher |
Key Distinction: S-glass prioritizes mechanical strength, while E-glass focuses on electrical insulation.
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