Rod-climbing in a particle-suspended polymeric liquid

✍ Scribed by Hyoung J. Choi; In S. Sim; Sung T. Lim; Myung S. Jhon

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 114 KB
• Volume: 75
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(20000124)75:4<572::aid-app13>3.0.co;2-v

✦ Synopsis

The rod-climbing experiment and its relationship to the first normal stress difference of kaolinite particle-suspended polyisobutylene (PIB)/polybutene (PB) systems possessing Boger fluid characteristics (no shear-thinning and highly elastic) were investigated. The rod-climbing constants of the kaolinite/PIB/PB system obtained from the second-order fluid model increased with particle concentration and PIB molecular weight, indicating that the elasticity of the PIB/PB increases as kaolinite particle concentration increases. The first normal stress difference obtained from the rodclimbing constant is also correlated with that measured value using RMS-800, a mechanical spectrometer, for the particle-suspended PIB/PB system.