🌌 1. Background: Managing Extreme Temperature in Aerospace Power Systems
In spacecraft, battery compartments are mission-critical components responsible for power supply and stability. During orbital operation and re-entry, these compartments face extreme thermal swings from –150 °C to +180 °C, vacuum, vibration, and radiation.
Uncontrolled heat transfer may cause:
Thermal runaway and battery degradation
Capacity loss and reduced lifespan
Increased structure weight due to redundant safety margins
Hence, aerospace power modules demand lightweight, intrinsically flame-retardant, and wide-temperature-stable insulation materials — such as YDNFoam™.

🧩 2. Material Properties: Aerospace-Grade Advantages of YDNFoam™
YDNFoam™ ultra-light melamine foam (density ≈ 4 kg/m³) features nano-scale open-cell porosity and nitrogen-rich molecular stability, ensuring outstanding thermal and mechanical integrity in vacuum or cryogenic conditions.
Property Typical Value Functional Significance
Thermal Conductivity (λ) ≤ 0.032 W/m·K Maintains insulation under vacuum and extreme cold
Operating Temperature –200 °C – +240 °C Covers entire spacecraft mission range
Sound Absorption (NRC) ≥ 0.85 Damps vibration and acoustic noise
Flame Retardancy UL 94 V-0 / EN 45545-2 R1 HL3 Intrinsically flame-retardant, no additives required
Density 4 kg/m³ Ultra-lightweight, reduces payload mass
Chemical Resistance Stable to electrolytes, acids, and ethanol Ensures long-term stability

🔋 3. Structural Integration: Three-Layer Thermal Barrier Design
YDNFoam™ can be configured into a multi-layer insulation system for battery bays:
1.Inner Conductive Isolation Layer — Laminated with aluminum foil or polyimide film to enhance heat reflection.
2.Middle Buffer Layer — Provides vibration damping and shock absorption.
3.Outer Radiative Shield Layer — Uses metallized PET or aerogel composites for radiation protection.
A composite structure of ≈ 300 g/m² total weight maintains a temperature differential of –120 °C ~ +150 °C, ideal for CubeSats, deep-space probes, and reusable rocket compartments.

🛰️ 4. Typical Aerospace Applications
Satellite battery bays
Reusable rocket power compartments
Deep-space probe energy modules
Electric-propulsion bay thermal shields

♻️ 5. Sustainability and Integration
100% nitrogen-based polymer, halogen-free and non-toxic.
Compatible with thermoforming (YDNFoam-TG) for complex geometries.
Easily integrated with aerogels, aramid honeycombs, or carbon composites.

🌠 6. Conclusion
YDNFoam™ provides a lightweight, flame-safe, and wide-temperature insulation solution for next-generation aerospace systems.
With intrinsic stability from –200 °C to +240 °C and λ ≤ 0.032 W/m·K, it ensures energy reliability, reduced structural weight, and superior safety for spacecraft battery modules and power systems.

📞 Contact YDNFoam™
YDNFoam | A Division of YDN Group
📍 Address: No. 2088, Jiuliting Avenue, Caoqiao Street, Pinghu City, Zhejiang Province, China
📧 Email: [email protected]
🌐 Website: www.ydnfoam.com
📞 Phone / WeChat: +86-135-4070-2776