1축 연신된 선형 저밀도 Polyethlen의 전기전도 특성

Electrical Conduction of the Uniaxial Elongatied LLD-PE

The measurements of electrical conduction had been investigated as a function of time, applied electric field, and temperature to investigate the elongated effects of the Linear Low Density Polyethylene (LLD-PE) films. The samples were drawn uniaxially at room temperature, and the rate of drawing was 13mm/mm. Films were fixed to metallic frames after elongation to maintain tension. As a result of elongation the rate of conduction decay current was increased and the electric conductivity and conduction activation energy were decreased. These results might be due to the generation of deep traps for electrons and the increase of trap sites by drawing. The decrease of activation energy was caused by the change of trap depth. These results might be due to as the changes of internal structure and morphology by the elongation of polymer.