CNT-Polyamide 복합재의 전기/열 전도도 및 인장강도변화에 관한 연구
The Effect of CNTs Diameters on Electrical Resistivity, Thermal Conductivity and Tensile Strength of CNT-polyamide Composites
The effect of CNT diameters on properties of CNT-polyamide composites was investigated such as electrical conductivity, tensile strength and thermal conductivity. To get different diameter distributions of CNTs, several portions of Mo and Fe in Mo-Fe/MgO catalysts were synthesized by a combustion method at 600℃. And all CNTs growed at 900℃ with 3 SLM methane and 1 SLM hydrogen for 40min. Four kinds of CNTs with different diameter distributions, such as 1~3nm, 3~7nm, 7~13nm, and 10~30nm, were selected to make CNT-polyamide composites. Each composite was manufactured by a solution mixing using bar-type ultra-sonicator in the CNT portions from 1phr to 50 phr. And electrical conductivity, tensile strength, and thermal conductivity were measured. Three properties of CNT-polyamide composite, manufactured with 10nm diameter, were more excellent compared to other composites, with electrical conductivity 10 Ω at 7phr, thermal conductivity 2.4.W/mK at 40phr, tensile strength 60MPa at 30phr. CNTs with a diameter of 10nm were superior to other diameters for the multi-functional composite such as CNT-polyamide composites.
목차
Abstract 1. 서론 2. CNT 직경조절 및 복합체 제조 2.1 CNT 직경조절 2.2 CNT-Polyamide 복합체 제조 2.3 CNT 및 복합체 분석 3. 결과 및 고찰 4. 결론 후기 References