AMA Insulation Paper and NMN Insulation Paper

The differences between AMA and NMN insulation papers lie in their material structure, performance parameters, and ap...

The differences between AMA and NMN insulation papers lie in their material structure, performance parameters, and application scenarios. Details are as follows:

‌Material Structure Differences‌

NMN Insulation Paper‌

Utilizes a three-layer composite structure: outer layer of aramid paper (high-temperature resistant), middle layer of polyester film (high dielectric strength), bonded with adhesive.

Emphasizes enhanced mechanical strength through multilayer composition, such as the aramid outer layer for heat resistance and the polyester middle layer for insulation.

AMA Insulation Paper‌

A composite material composed of polyaramid fiber paper and polyester film.

Focuses on uniform fiber distribution and optimized resin synthesis to improve flexibility and processing adaptability.

‌Performance Comparison‌

Property	NMN Insulation Paper	AMA Insulation Paper
Temperature Class	Class H (max operating temp. 180°C)	Class H (180°C)[8]
Dielectric Strength	High (due to polyester film layer)	High (synergy of aramid fiber and polyester film)
Mechanical Strength	Strong tear and puncture resistance	Superior flexibility for complex shaping[8]
Thickness Range	Customizable (e.g., 0.25mm typical)	Similar to NMN (data unspecified)

‌Application Scenarios‌

NMN Insulation Paper‌

Ideal for mechanically demanding environments, such as interlayer insulation in reactors and transformers.

Specific grades (e.g., 6640NMN) withstand temperatures up to 220°C for extreme heat conditions.

‌AMA Insulation Paper‌

Preferred for scenarios requiring flexibility and conformability, such as motor slot insulation or wrapping irregular components.

Compatible with resin systems, suitable for high-frequency or high-vibration environments.

‌Summary‌

‌Commonalities‌: Both are Class H (180°C) materials using aramid-polyester composite structures.

‌Key Differences‌: NMN prioritizes mechanical strength and high-temperature endurance, while AMA emphasizes flexibility and adaptability. Selection depends on specific requirements (temperature, component geometry, mechanical stress, etc.).