ASTM D787 Grade 1 Ethyl Cellulose
Grade 1 EC is a grade of Ethyl Cellulose. It has the highest strength compared to the other variants of Ethyl Cellulose. The graph bars on the material properties cards below compare grade 1 EC to: cellulosic plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Impact Strength: Notched Izod
66 J/m 1.2 ft-lb/in
Rockwell R Hardness
120
Tensile Strength: Ultimate (UTS)
51 MPa 7.4 x 103 psi
Thermal Properties
Heat Deflection Temperature At 1.82 MPa (264 psi)
93 °C 200 °F
Heat Deflection Temperature At 455 kPa (66 psi)
110 °C 220 °F
Otherwise Unclassified Properties
Density
1.1 g/cm3 71 lb/ft3
Water Absorption After 24 Hours
1.5 %
Common Calculations
Strength to Weight: Axial
13 points
Strength to Weight: Bending
27 points
Followup Questions
Further Reading
ASTM D787: Standard Specification for Ethyl Cellulose Molding and Extrusion Compounds