| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Understanding How to Tune Microstructure and Polymer Properties via Reaction Conditions for Low-Density Polyethylene |
| 초록 |
Even chemically simple polymer structures, like polyethylene, can result is diverse properties. The special feature of PE is its branching structure, which exhibits short- and long-chain branches (SCBs and LCBs), which have a drastic effect on polymer properties. A multi-scale modelling approach was developed to understand this connection. A kinetic model determines concentration profiles and average polymer properties. Then, a hybrid Monte-Carlo model gives individual branching structures. Those are used to predict flow properties (shear/extensional rheology). The strategy was successfully validated via comprehensive analytics for a mini plant-scale autoclave as well as an industrial-scale tubular reactor. Depicting the formation of randomly distributed LCBs on complex polymer architectures and predicting their effect on properties was the biggest challenge. The new strategy poses a universal method to predict structure-property relationships only based on polymerization conditions. |
| 저자 |
Kristina Pflug1, Markus Busch2
|
| 소속 |
1Institute for Technical and Macromolecular Engineering, 2Univ. of Hamburg |
| 키워드 |
- |
| E-Mail |
|
