Plastic material·Parts innovation

With the customer Korea Polymer Co.,Ltd.

Properties

PET / PC / HDPE
Material Type PET PC HDPE
Item Unit PET100
Specific Gravity g/㎠ 1.39 1.22 0.95
Tensile Strength MPa(㎏f/㎠) 84(860) 70(705) 22(230)
Expansion Coefficient % 32 125 600
Tensile Elasticity Modulus MPa(103㎏f/㎠) - 2400(24.5) 930(9.5)
Compression Strength Yield Point MPa(㎏f/㎠) - - -
5% modified
(10% modified)
MPa(㎏f/㎠) 97(990) 72(710) 29(300)
Curve Strength MPa(㎏f/㎠) 127(1300) 108(1100) -
Curve Elasticity MPa(103㎏f/㎠) 3011(30.7) 395(23.5) -
IZOD Notched Impact Test J/m(㎏f·㎝/2.54㎝) 48(12.4) 80(19.5) 89(23)
Rockwell Solidity R-Scale 125 - 54
Shore Solidity D type 93 83 60
Melting Point 252 - 120
Heat Change
Temperature
0.445MPa (4.6㎏f/㎠) 194 142 65
1.820MPa (18.6㎏f/㎠) 98 132 47
Linear Expansion Coefficient ×105/℃ 6.0 6 15
Absorbency
Rate
(Underwater,
Flat)
% 0.05 0.15 0.01
(Underwater,
24hrs)
% 0.07 0.3 0.01
Volume Specific resistance Ω·m(Ω·m) >1014(>1016) >1013(>1015) >1014(>1016)
Dielectric Breakdown Voltage
Dielectric Constant 106
Heritability 106
㎸/㎜
-
-
60
3.2
0.02
28
3
0.001
40
-
-
Combustibility - HB HB HB