PET (Polyethylene Terephthalate)
Polyethylene terephthalate (PET, PETE, PETP) is a thermoplastic material of the polyester range produced by the poly condensation method. Its softening temperature is pproximately between 70 °C - 80 °C. It is not deformed up to this point and it is resistant to breakage. It can reach above 140 °C when it is in the crystal form.
Its melting point is between 235 °C and 260 °C (depending on the degree of crystallization and degree of polymerization). It serves as a barrier against gas and moisture. PET forms the bottom layer of the sandwich roof panels which are used in acidic environments, Food Plants, Chemical Manufacturing Plants, Fertilizer Drying Facilities, Sports Facilities, Thermal Swimming Pools and constructions used in the Agriculture-Livestock Sector.
| Value | Product | Result | |||
|---|---|---|---|---|---|
| Density | 1,34g/cm² | Coherent | Normal | Inadaptable | |
| Bending Tensile Stregth | 53Mpa | Mineral Oil | X | ||
| Fracture Tensile Strength | 26Mpa | Vegetable Oil | X | ||
| Elongation Fracture | %>200 | Acetone | X | ||
| Tensile Elasticity | %>200 | Acetic Acid | X | ||
| Bending Resistance | 79Mpa | Water | X | ||
| Notched Impact Test | 10KJ/M² | Terebentine | X | ||
| Impact Test | No Bending | Ammonia | X | ||
| Rockwell Hardness Test | 115 | Detergent | X | ||
| Maximum Working Value | 60°C | Ethanol | X | ||
| Vicat Softening Test (10 N) | 79°C | Oil | X | ||
| Vicat Softening Test (50 N) | 5°C | Glycerine | X | ||
| Bending Temperature (HDT A 1,8MPa) | 69°C | Methanol | X | ||
| Bending Temperature (HDT B 0,45MPa) | 73°C | Toluene | X | ||