| Material Type | PET | PP | PVC-U | ||
|---|---|---|---|---|---|
| Item | Unit | ||||
| Specific Gravity | g/㎠ | 1.35 | 0.91 | 1.43 | |
| Tensile Strength | MPa(㎏f/㎠) | 93(950) | 35(360) | 46(470) | |
| Expansion Coefficient | % | 19 | 30 | 3 | |
| Tensile Elasticity Modulus | MPa(103㎏f/㎠) | 3447(35.15) | 1177(12) | 2942(30) | |
| Compression Strength | Yield Point | MPa(㎏f/㎠) | - | - | - |
| 5% modified (10% modified) |
MPa(㎏f/㎠) | 107(1100) | 49(500) | 76(780) | |
| Curve Strength | MPa(㎏f/㎠) | 147(1500) | - | - | |
| Curve Elasticity | MPa(103㎏f/㎠) | 3430(35) | - | - | |
| IZOD Notched Impact Test | J/m(㎏f·㎝/2.54㎝) | 19(5) | 30(10) | 9.7(2.5) | |
| Rockwell Solidity | R-Scale | 124 | 110 | - | |
| Shore Solidity | D type | 97 | 77 | 53 | |
| Melting Point | ℃ | 282 | 120 | 75 | |
| Heat Change Temperature |
0.445MPa (4.6㎏f/㎠) | ℃ | - | 105 | - |
| 1.820MPa (18.6㎏f/㎠) | ℃ | 121 | 80 | - | |
| Linear Expansion Coefficient | ×105/℃ | 5.0 | 11 | 8 | |
| Absorbency Rate |
(Underwater, Flat) |
% | - | 0.01 | 0.2 |
| (Underwater, 24hrs) |
% | 0.01 | 0.01 | - | |
| Volume Specific resistance | Ω·m(Ω·m) | >1014(>1016) | >1014(>1016) | >1013(>1015) | |
| Dielectric Breakdown Voltage Dielectric Constant 106㎐ Heritability 106㎐ |
㎸/㎜ - - |
21.3 3.0 0.0013 |
- - - |
- - - |
|
| Combustibility | - | V-O | HB | V-O | |
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