About Polycarbonate
Properties of Polycarbonate
1. Property of Heat:- Temperature of Heat deformation: The temperature that causes Polycarbonate panels to deform is 130°C, and the highest temperature for continuous using is about 120°C.
- Coefficient of Linear Expansion: Polycarbonate is one of resin which has smaller coefficient of liner expansion.
- Conductivity of Heat: There is no big difference between heat conductivity of Polycarbonate and other resin. It’s about 1/4 of Glass, 1/300 of Iron, 1/1000 of Aluminum, 1/12000 of Steel. Polycarbonate is a better material to keep warmth.
- Temperature of Embrittlement: For embrittlement, Polycarbonate is lower than normal resin. It’s about -135°C, and the lowest temperature for continuous using is about -30°C.
- Combustion: Polycarbonate is one of resin which gets burn not easily. During the process of heating up Polycarbonate, Polycarbonate would not produce toxic gas.
- Weather Ability: When normal Polycarbonate panels are exposed outdoor for a long time, normal Polycarbonate panel become yellowish and crack on the surface. The surface of Polycarbonate panel, made by SUN ASIA, is all coating with Anti-UV material. As the results, the optic property and mechanical property would not have significant changes even under the exposure for a long time.
- Diaphaneity: The diaphaneity of 1mm thickness clear Polycarbonate panel is above 85%, and the diaphaneity of 5mm thickness clear Polycarbonate panel is above 80%, similar with glass.
- Pull Resistance: Polycarbonate panel have better heat resistance. Even under 120°C, the pull resistance is still 350kgf/cm2.
- Modulus of Bending Resistance: Polycarbonate panel have better bending resistance. Polycarbonate panel would not break, even if the angle is 80° ~ 90°.
- As the thickness is the same, the sound insulation property of Polycarbonate panels is better than glass under the high frequency.
- At the same dimension, the weight of Polycarbonate board is half of glass. This can help us to save the cost of delivery and haul or construct more easily.
Technical Data
Characteristics | Test Method | Unit | Polycarbonate Hollow Sheet Data | Polycarbonate Solid Sheet Data |
---|---|---|---|---|
lzod Impact Strength (Notched) | ASTM D256 | kg • cm/cm (1/4") | 15 | 14.3 |
Light Transmission | ASTM D1003 | % (3mm thick) | 88 | 89 |
Specific Gravity | ASTM D792 | - | 1.2 | 1.2 |
Coefficient of Linear Expansion | ASTM D696 | x10-5 cm/cm/°C | 6 ~ 8 | 6 ~ 8 |
Service Temperature | - | °C | -40°C ~ +120°C | -40°C ~ +120°C |
Thermal Conductivity | ASTM C177 | W/m°C | 0.2 | 0.2 |
Tensile Strength | ASTM D638 | kg/cm² | 630 | 630 |
Flexural Strength | ASTM D790 | kg/cm² | 920 | 920 |
Flexural Modulus | ASTM D790 | kg • cm/cm(1/4") | 24000 | 24000 |
Tensile Stress at Break | ASTM D638 | % | 110 | 110 |
Rockwell Hardness | ASTM D785 | M Scale | M-77 | M-77 |
Heat Distortion Temperature | ASTM D648 | °C (4.6 Kg/cm², 120°C/hr) | 136 | 136 |
Flammability | UL 94 | - | 1.5mm HB | 3mm HB |
Chemicals Incompatible to the PC Sheet
1. Acetic aldehyde | 2. Strong acetic acid | 3. Acetone | 4. Acrylonitrile | 5. Ammonia water |
6. Ammonium fluoride sat'd | 7. Ammonium chloride sat'd | 8. Benzene | 9. Benzoic acid | 10. Benzyl alcohol |
11. Brominated calcium nitrate | 12. Carbolic acid | 13. Carbon disulfide | 14. Carbon tetrachloride | 15. 5% potassium hydroxide solution |
16. 5% sodium hydroxide solution | 17. Chlorobenzene | 18. Chloroform | 19. Lilac | 20. Cresol |
21. Cyclohexanone | 22. Cyclohexene | 23. Dimethylformamide | 24. Dioxin | 25. Ethylamine |
26. Ether | 27. PVC | 28. 2-Ethanolamine | 29. 30% formic acid | 30. Gasoline |
31. Methacrylic acid methyl | 32. Nitrobenzene | 33. Nucleolus | 34. Pyridine | 35. Petroleum |
36. Benzyl ethanol | 37. Phenol | 38. Chloroperoxide | 39. Phosphorus trichloride | 40. Styrene |
41. Tetrachloroethane | 42. THF | 43. Tetralin | 44. Thiophenes | 45. Toluene |
46. 10% trichloroamine | 47. Xylene | 48. Ammonium hydroxide | 49. Chlorohydrocarbon | 50. Ketone |
51. Methyl-ethyl ketone | 52. Dichloromethane | 53. Ethylene hydroxide | 54. Sodium hydroxide | 55. Nitric acid |
56. Cement | 57. Oil |