| 초록 |
Thermal and hydrolytic stabilities of flame retardant poly(butylene terephthalate)(PBT), containing different amount of phosphorus flame retardant in the polymer chains (contents-5.5%, 8%, 10%, 15%) were investigated as received by Kolon Central Research Park. The higher the amounts of phosphorous flame retardant are, the better the thermal stabilities become. It indicates that phosphorous flame retardant acted as a physical barrier to heat transfer and protected the polymer from the flame. As introducing flame retardant up to 10% of flame retardant, however, hydrolytic stability decreased gradually. When the amount of flame retardant became 15%, hydrolytic stability increased and had similar hydrolysis behavior to the controlled PBT. It indicates that PBT, which contains 15% of phosphorous flame retardant monomer (FRPBT15), had formed stereo-stability molecular structure because the pendant group of the FRPBT15 could act as a component for the efficient packing of crystals. |
