T-glass contains a higher percentage of silica (SiO2) and alumina (Al2O3) than general-purpose E-glass used for composite materials. As a result, its fiber displays highly advanced mechanical and thermal performance.
Like carbon, aramid, and other fibers, T-glass is efficient as reinforcement for advanced composite materials and is used by itself or as a hybrid with carbon fiber in aerospace and sports.
T-glass is also used in high-performance electronic materials for its low thermal expansion and high tensile elasticity.
Composition
(Unit: wt %)
| Composition | T-glass | E-glass |
|---|---|---|
| SiO2 | 64～66 | 52～56 |
| Al2O3 | 24～26 | 12～16 |
| CaO | - | 20～25 |
| MgO | 9～11 | |
| R2O | - | 0～0.8 |
| B2O3 | - | 5～10 |
Characteristics
| Characteristics | T-glass | E-glass |
|---|---|---|
| Density (g/cm3) *1 | 2.5 | 2.6 |
| Tensile strength (GPa) *2 | 4.8 | 3.2 |
| Tensile elasticity modulus (GPa) | 86 | 75 |
| Maximum elongation percentage (％) | 6.16 | 4.8 |
| Thermal expansion coefficient (×10-6/℃) *1 |
2.8 | 5.6 |
| Softening point (℃) *1 | >1000 | 844 |
*1 Measured values for lumps of glass.
*2 Tensile strength is measured using glass fiber called “virgin fiber”, which has less defects.
* The data listed above are examples of actually measured values and not standard ones.