Product Description:
The Epoxy Glass Laminated Sheet utilizes specially treated
non-alkali glass fiber cloth as the reinforcement substrate and
high glass transition temperature (Tg) epoxy resin as the adhesive,
manufactured through a hot-pressing process under high temperature
and pressure. This material maintains excellent mechanical strength
at elevated temperatures and demonstrates stable electrical
performance under high humidity conditions. Rated as Class H
heat-resistant insulation material, it is widely used in power
generation equipment, high-voltage electrical apparatus, rail
transportation, and electronic communication fields that demand
high reliability.
Advantages:
- Exceptional Thermal Resistance and Mechanical Performance
Utilizing high-Tg epoxy resin, it qualifies as a Class H insulation
material. It not only operates reliably under long-term
high-temperature conditions but also maintains excellent mechanical
strength and dimensional stability, resisting softening or
deformation, making it suitable for high-temperature and high-load
applications. - Outstanding Electrical Insulation Stability
With high dielectric strength and low dielectric loss, it
demonstrates remarkable stability even in high-temperature and
high-humidity environments, making it an ideal insulation material
for high-voltage applications. - Excellent Environmental Tolerance
The dense structure of the epoxy resin system results in low water
absorption, providing effective resistance to a wide range of
chemicals, solvents, and oils. This significantly extends its
service life in harsh environments. - Superior Machinability and Adaptability
It offers excellent mechanical processability, allowing for easy
fabrication into complex-shaped components. This ensures convenient
processing and strong adaptability.
Technical Parameters:
| Attribute | Value |
| Density | 1.80~2.00 g/cm3 |
| Water absorption (3mm in thickness) | ≤ 22mg |
| Flexural strength perpendicular to laminations (normal) | ≥ 380MPa |
| Tolerances on thiness | 1±0.18mm / 2±0.28mm |
| Tensile strength | ≥ 300MPa |
| Dielectric dissipation (50Hz) | ≤ 0.04 |
| Relative Permittivity (50Hz) | ≤ 5.5 |
| Electric strength perpendicular to laminations (at 90℃±2℃ in oil),
1mm in thickness | ≥ 14.2 kV/mm |
| Insulation resistance (after 24 immersion in water) | ≥ 5.0 × 10^4 MΩ |
| Breakdown voltage parallel to laminations (at 90℃±2℃ in oil) | ≥ 35kV |
Applications:
- Power Generation and High-Voltage Electrical Equipment
Used as key insulation components in large generators, high-voltage
switches, and transformers, ensuring stable operation and
mechanical robustness under high temperatures and voltages. - Rail Transportation
Applied in core equipment such as locomotive traction motors and
control systems, providing highly reliable insulation and
structural support that meets stringent environmental requirements. - Electronic Communications
Serves as substrate material for high-end PCBs in high-frequency
communication equipment and power amplifiers, delivering stable
dielectric performance and mechanical support. - Industrial Instruments and Machinery
Widely used in test fixtures, chip test sockets, and wear-resistant
structural components, meeting industrial needs for high precision,
insulation, and integrated strength requirements.
