Material Properties and Functional Compatibility
Dynamic Mechanical Performance
TPU Polyurethane Film exhibit elongation rates >500% and tensile strength up to 50MPa, ideally suited for the frequent inflation/deflation cycles of lumbar support airbags (approximately 200 cycles daily). Their fatigue resistance is 3 times higher than traditional PVC materials1. Hydrolysis-resistant formulations withstand human sweat erosion, with <15% performance degradation after 5,000 Damp heat aging test cycles.
Safety Performance
UL94 V0-rated flame-retardant formulations achieve self-extinguishing within <3 seconds upon ignition, with no dripping to ignite seat fabrics. Compliance with FMVSS302 standards ensures mandatory automotive interior safety.
Key Features
Outstanding mechanical properties with high pressure resistance
Excellent weather resistance and low-temperature performance
Superior aging resistance, yellowing resistance (Grade 4)
Ultra-low VOC emissions and minimal odor
Good flame retardant and self-extinguishing properties
Suitable for high-frequency processing
Innovative Application Solutions
Multilayer Composite Structure
Industry-leading solutions adopt 0.2mm thick TPU/polyester composite membranes (3-layer co-extrusion). The TPU interlayer provides elasticity while the polyester outer layer enhances puncture resistance. This structure withstands 80kg concentrated impact loads without rupture.
Smart Pressure Adjustment
Conductive TPU Polyurethane Film integrate pressure sensors (0.5Ω/kPa resistance variation rate), enabling real-time monitoring and adaptive adjustment of lumbar support force. BMW iX series applications demonstrate <5% error rates.
BASIC PHYSICAL PERFORMANCE
|
Test Item |
TEST METHOD |
UNIT |
XG2592 T24101012 |
|
|
Tensile Strength |
ASTM D412/Die C |
MPa |
CD |
61.13 |
|
MD |
61.54 |
|||
|
100% Modulus |
ASTM D412/Die C |
MPa |
CD |
8.15 |
|
MD |
8.38 |
|||
|
300% Modulus |
ASTM D412/Die C |
MPa |
CD |
18.95 |
|
MD |
21.07 |
|||
|
Elongation |
ASTM D412/Die C |
% |
CD |
508 |
|
MD |
488 |
|||
|
Tear Strength |
ASTM D624 |
KN/m |
CD |
109.62 |
|
MD |
105.22 |
|||
|
Thickness |
ASTM D3767 |
mm |
- |
0.38 |
|
Haze |
ASTM D1003 |
% |
- |
88.63 |
|
Light transmittance |
ASTM D1003 |
% |
- |
88.07 |
|
Hardness |
ASTM D2240 |
Shore A |
- |
92 |
|
Density |
ASTM D792 |
g/cm3 |
- |
1.14 |
|
Color |
Visual |
/ |
- |
Natural |
|
COF A-A |
GB/T1006-1988 |
/ |
μs |
0.48 |
|
μd |
0.47 |
|||
|
COF A-B |
GB/T1006-1988 |
/ |
μs |
0.25 |
|
μd |
0.25 |
|||
|
COF B-B |
GB/T1006-1988 |
/ |
μs |
0.56 |
|
μd |
0.50 |
Technical Challenges & Development
Moisture Permeability Enhancement: Current materials achieve only 500g/m²·24h, requiring microporous TPU films (>1500g/m²·24h target) for prolonged sitting comfort.
Bio-based Transition: XG2592 Series is a Polyether based TPU Polyurethane Film specifically developed for automotive seat assemblies and aftermarket manufacturers, designed for Dynamic lumbar support systems in Car Seats.Functech's ECO bio-based TPU currently costs 20-25% more than petroleum-based variants, with cost parity projected by 2026
