The physical properties of nonmetallic materials for automobile interior mainly include mechanical properties, thermal properties, appearance properties, electrical properties, flammability, etc.
Mechanical Property
Type |
Test Item
|
Test Item
|
Plastic
|
Tensile property
|
Ball-indentation hardness
|
Bending property
|
D Shore D hardness
|
|
Charpy impact strength
|
Tensile impact
|
|
Izod impact strength
|
Drop-hammer impact
|
|
Bending creep
|
Multiaxial impact
|
|
Embrittlement temperature
|
Rockwell hardness
|
|
Tensile creep | ||
Rubber
|
Tear strength
|
A Shore A hardness
|
Tensile property
|
International micro hardness | |
Embrittlement temperature |
Plastic deformation |
|
Rebound resilience |
Compressive stress |
|
Plastic deformation |
Corrosion properties |
|
Film
|
Tensile properties
|
Falling dart impact
|
Tear strength
|
||
Foam
|
Elongation at break/The tensile strength |
Amine emissions from PUR flexible foam
|
Compressive stress experiment
|
Compression stress/Compression stress change
|
|
Tear grow test
|
Compression set
|
|
Laminated Material
|
The separation of power
|
|
Glue
|
Peel strength
|
Tensile shear
|
Long-term tensile shear strength |
Relative peel strength |
Thermal Property
Test Item
|
Test Item
|
Vicat softening temperature |
Heat stability |
Heat deflection temperature under load |
Melting point temperature |
Melt flow rate |
Coefficient of linear expansion |
Rheological behavior |
Glow wire test |
Total incision creep test |
Ball pressure temperature |
Appearance
Test Item
|
Test Item
|
Infrared analysis |
Taber abrasion |
Density |
Wear marks |
Apparent density |
Rubbing fastness |
Mass per unit area |
Pencil hardness |
Color test of interior and exterior trim |
Five fingers scratching |
Whiteness/Glossiness |
Abrasion behavior |
Abrasion resistance for high-gloss surfaces |
|
Flammability
Test Item
|
Test Item
|
Horizontal burning test |
Smoke density |
Flammability testing apparatus |
Oxygen index |
Ignited residue |
|
Electrical Properties
Test Item
|
Test Item
|
Tracking test |
resistance/volume resistance |
Electric breakdown strength |
Dielectric strength |
Glow wire test |
|