
2: POLY( p-XYLYLENE)S 49
Table 2.3 Properties of Parylene-N [53]
Property Value Unit Standard
Density 1.11 gcm
−3
ASTM D1505
Water Absorption 24 h 0.1 % ASTM D570
Coefficient of friction 0.25 ASTM D1894
Secant Modulus MD 2410 MPa ASTM D882
Tensile Strength Yld MD 42.1 MPa ASTM D882
Tensile Strength Brk MD 58.6 MPa ASTM D882
Elongation Yield MD 2.5 % ASTM D882
Elongation Break MD 140 % ASTM D882
Rockwell Hardness (R-Scale) 85 ASTM D785
Melting point 420
◦
C
Specific Heat (20
◦
C) 837 Jkg
−1
K
−1
ASTM C351
Ther mal Conductivity 0.13 Wm
−1
K
−1
ASTM C177
Surface Resistivity 1.0E+13 ASTM D257
Volume Resistivity 1.4E+17 cm ASTM D257
Dielectric Strength 276 kV mm
−1
ASTM D149