Vehicle interiors must meet stringent VOC (Volatile Organic Compound) standards (e.g., GB/T 27630). PU foam often uses organic amine catalysts and physical blowing agents (e.g., HCFC) in synthesis, which can release odorous substances like trimethylamine and formaldehyde at high temperatures. PET foam uses supercritical CO₂ or cyclopentane blowing, leaving no residual amine catalysts, achieving Class A VOC rating. Furthermore, truck floors require fatigue life exceeding 1 million three-point bending cycles, and PET foam’s fatigue strength is 3–5 times that of PU foam. Roof load beams also commonly use PET foam + glass fiber-reinforced facings for lightweighting while meeting roof crush strength ≥3 times vehicle weight.
In automotive composite applications, why is PET sandwich panel more common than PU?
- XPS Foam Core
- PET Foam Core
- PVC Foam Core
- PU Foam Core
- PMI Foam Core
- PP Honeycomb Core
- Balsa Wood
- XPS Backer Board
- FRP XPS Sandwich Panel
- FRP PET Sandwich Panel
- FRP PVC Sandwich Panel
- FRP PP Honeycomb Panel
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