Butyrate Typical Technical Data
Mechanical
Properties |
Tensile Stress @ Yield |
D 638 |
33.1 MPa
(4800 psi) |
Tensile Stress @ Break |
D 638 |
43.4 MPa
(6300 psi) |
Elongation @ Break |
D 638 |
50% |
Flexural Modulus |
D 790 |
1379 MPa
(2.00
x 105 psi ) |
Flexural Yield Strength |
D 790 |
45.5 MPa
(6600 psi) |
Rockwell Hardness, R Scale |
D 785 |
78 |
Izod Impact Strength, Notched |
|
D 256 |
240 J/m (4.5 ftlbf/in.) |
|
D 256 |
96 J/m (1.8 ftlbf/in.) |
|
Thermal
Properties |
Deflection Temperatured |
|
D 648 |
74C (165F) |
|
D 648 |
85C (185F) |
Vicat Softening Temperatured |
D 1525 |
104C (219F) |
|
Permanence
Properties |
Water Absorption, 24 h
immersion |
D 570 |
1.4% |
Soluble Matter Loss |
D 570 |
0.1% |
Weight Loss on Heating [72
hours @ 80°C (176°F)] |
D 707 |
0.5% |
|
Miscellaneous
Butyrate Properties |
Refractive Index, nD |
D 542 |
1.46-1.49 |
Light Transmissione |
E 308 |
>90% |
Hazee |
D 1003 |
<8.5% |
Specific Heat @ 23C (73F) |
DSC |
1.26-1.67 kJ/kgK
(0.301-0.399 Btu/lbF) |
Thermal Conductivity |
C 177 |
0.17-0.33 W/mK
(1.2-2.3
Btuin./hft2F ) |
Coefficient of Linear Thermal
Expansion |
D 696 |
11 - 17 x 10-5 /C (mm/mmC) (
6 - 9 x 10-5 /F (in./in.F)) |
Mold Shrinkage |
D 955 |
0.2-0.6% |
Dielectric Strength |
D 149 |
11.8-18.7 kV/mm
(300-475 V/mil) |
Dielectric Constant 1 MHz |
D 150 |
3.3-3.8 |
Dissipation Factor 1 MHz |
D 150 |
0.01-0.15 |
Volume Resistivity |
D 257 |
1013 - 1015 ohmcm |