| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Effects of PTMG molecular weight and its content on microporous structure in PE/ paraffin oil/PTMG mixtures for lithium ion battery separator |
| 초록 |
Polyethylene (PE) membranes containing controlled pore sizes and porosities were fabricated using a polytetramethylene glycol (PTMG) mixture with paraffin as a novel diluent via a thermally-induced phase separation (TIPS) process. PTMG could not be used as a diluent alone because it does not form a single phase mixture with PE over the entire temperature range. The phase separation temperature of the PE//(paraffin/PTMG) ternary mixture increased with increasing PTMG content in the diluent mixture when PE content was fixed. The observed phase behavior was attributed to the intermolecular association behavior of PTMG. The phase separation temperature in the PE//(paraffin/PTMG) ternary blend could be increased up to the evaporation temperature of paraffin by controlling the PTMG content or its molecular weight. As a consequence, a PE membrane containing controlled pores and porosities was able to be fabricated using a diluent mixture containing PTMG and paraffin. |
| 저자 |
김지선, 김창근
|
| 소속 |
중앙대 |
| 키워드 |
lithium ion battery separator; thermally-induced phase separation (TIPS) process; Polyethylene (PE) membranes
|
| E-Mail |
|
