1. Nylon Nylon 6 66 610 66 6 6 6 66 400F 6 1952 610 610 1
2 1. 2. 3. 4.
5. 6. 7. 8. 2. (Thermoplastic plastic) M m f i M = f i i M m M i f i (Thermosetting plastic) 3
(Curing) ( ) 4
5
(Glass Transition Temp.) (Amorphous) ( ) V-T T P-t ( - ) r A F F/A ( Shear Stress) u (shear rate) du/dr 6
=(du/dr) (Newtonian liquids) ìì 0* r n-1 n = PR / 2L 300 0.02 7
170 0.3 3. PVC ( ) A. B. C. D. E. F. G. 8
a. b. c. (cold flex temperature) A. B. (external lubricants) PVC C. (internal lubricants) 9
PVC A. (chain scission) B. C. D. 1) (preventive antioxidant) 2) (chain breaking antioxidant) 10
A. B. C. D. E. F. ( ) 4. (Engineering Plastics) (Engineering Plastics ) 11
A. (Ether ) -1500F 3000F B. 2,6 (2,6-dimethyl phenol) PPO( ) -275F (Heat reflection point ) 37 F PPO C. 12
D. (Self-extinguish) E. 358 F 275 F 13
(Flame Spraying ) F. (3,000,000) 14
5. 1. / 2. / 3. 2000 / 4. / / 5. / / 6. / / 7. / / 8. / / R90522707 R90522732 R90522729 15