Fiches techniques — Catégorie : TPU & derivatives
TPU — Technical Specifications
Matériau
TPU 85A
Bambu Lab
TPU 90A
Bambu Lab
TPU 95A
Bambu Lab
Physical properties
Density
1.18 g/cm³
1.24 g/cm³
1.22 g/cm³
Merger Index (MFI)
8.76 ± 2.6 g/10 min
9.36 ± 2.6 g/10 min
36.5 ± 2.6 g/10 min
Melting point
177 °C
180 °C
183 °C
Glass transition temperature (Tg)
—
—
—
Crystallization temperature
—
—
—
Vicat softening temperature
—
—
—
Load deflection temperature (HDT) — @0.45 MPa
—
—
—
Load deflection temperature (HDT) — @1.8 MPa
—
—
—
Water absorption rate (25°C, 55% RH)
0.67%
0.61%
1.08%
Chemical stability
Stable
Stable
Stable
Chemical resistance
Acids/Bases: not resistant; Solvents: not resistant to some; Oils/Greases: resistant
Acids/Bases: not resistant; Solvents: not resistant to some; Oils/Greases: resistant
Acids/Bases: not resistant; Solvents: not resistant to some; Oils/Greases: resistant
Flammability
Flammable
Flammable
Flammable
Odor / Combustion products
Odorless; combustion: H₂O, COx, NOx; pungent odor
Odorless; combustion: H₂O, COx, NOx; pungent odor
Odorless; combustion: H₂O, COx, NOx; pungent odor
Mechanical properties
Young's modulus — XY
6.8 ± 0.7 MPa
5.3 ± 0.7 MPa
9.8 ± 0.7 MPa
Young's modulus — Z
5.2 ± 0.6 MPa
4.4 ± 0.6 MPa
7.4 ± 0.6 MPa
Tensile strength — XY
12.0 ± 0.8 MPa
12.5 ± 0.8 MPa
27.3 ± 0.8 MPa
Tensile strength — Z
10.5 ± 0.6 MPa
10.1 ± 0.6 MPa
22.3 ± 0.6 MPa
Elongation at break — XY
> 700 %
> 650%
> 650%
Elongation at break — Z
> 350%
> 350%
> 480%
Bending modulus — XY
—
—
—
Bending modulus — Z
—
—
—
Flexural strength — XY
—
—
—
Flexural strength — Z
—
—
—
XY impact resistance
124.3 kJ/m²
124.2 kJ/m²
123.2 kJ/m²
Impact resistance Z
88.5 kJ/m²
87.3 kJ/m²
86.3 kJ/m²
Hardness (Shore A)
85A
90A
95A
Thermal properties
Glass transition temperature
—
—
—
Decomposition temperature
—
—
—
Coefficient of thermal expansion
—
—
—