Polyimide Impregnated Glass Varnished Cloth Description:
Polyimide Impregnated Glass Varnished Cloth is a high-performance insulating material made by impregnating alkali-free electrical glass cloth with polyamic acid resin, followed by drying and imidization. It exhibits excellent thermal stability, allowing long-term use at 200°C, along with radiation resistance, corrosion resistance, and solvent resistance. Additionally, it has superior dielectric properties and mechanical strength, making it highly reliable for demanding electrical and electronic applications. This material is widely used for slot insulation and end padding in motors, as well as in various electronic components requiring high durability and insulation performance.
Polyimide Impregnated Glass Varnished Cloth Specifications:
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Material
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Polyimide
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Color/Appearance
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Transparent or translucent golden yellow film
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Tensile strength
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100-140MPa
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Bulk resistivity
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≥1.0×10^12Ω.m
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Industrial Frequency Electrical Strength
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10.0-8.5KV
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Relative dielectric constant 50Hz
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3-4
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Dielectric loss factor 50Hz
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≤5.0×10-2
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Water absorption 20±5℃ Immersion in water for 24h
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≤3%
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Polyimide Impregnated Glass Varnished Cloth Applications:
1. Slot Insulation for Motors: Used as slot insulation and end padding in electric motors to enhance electrical insulation and thermal stability.
2. Transformer Insulation: Applied in high-performance transformers for superior dielectric protection.
3. High-Temperature Electrical Insulation: Used in high-voltage electrical equipment that requires resistance to heat, radiation, and chemical exposure.
4. Electronic Components: Integrated into circuit boards and insulation layers for enhanced reliability in extreme environments.
5. Aerospace and Defense: Utilized in aircraft and military electronics due to its resistance to radiation and harsh operating conditions.
6. Industrial and High-Performance Applications: Suitable for specialized industrial machinery requiring strong insulation and durability.
Polyimide Impregnated Glass Varnished Cloth Packing:
Our Polyimide Impregnated Glass Varnished Cloth is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Polyimide Impregnated Glass Varnished Cloth FAQ:
Q1: What is Polyimide Impregnated Glass Varnished Cloth?
A1: Polyimide Impregnated Glass Varnished Cloth is an advanced insulating material made by impregnating alkali-free electrical glass cloth with polyamic acid resin, followed by drying and imidization. It offers excellent thermal resistance, dielectric properties, mechanical strength, and resistance to radiation, corrosion, and solvents. It is widely used for slot insulation in motors, transformer insulation, and electronic applications.
Q2: What are the key properties of Polyimide Impregnated Glass Varnished Cloth?
A2: High thermal stability – Can operate continuously at 200°C without performance degradation.
Excellent dielectric properties – Provides superior electrical insulation.
Radiation, corrosion, and solvent resistance – Suitable for harsh environments, including aerospace and industrial applications.
High mechanical strength – Ensures durability and reliability in demanding conditions.
Q3: What are the common applications of this material?
A3: Slot insulation and end padding for motors.
Transformer insulation for high-performance electrical equipment.
High-temperature electrical insulation in various industrial applications.
Electronic components requiring strong dielectric protection.
Aerospace and defense electronics due to its resistance to extreme environments.
