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Publication
Polyethylene and the Nucleating Agent: Dibenzylidene Sorbitol, a Neutron Scattering Study
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Advisor(s)
Abstract(s)
Dibenzylidene Sorbitol is a very effective clarification additive for isotactic polypropylene. It is not effective with polyethylene although recent studies have shown that it can act as an effective nucleating and directing agent. We employ small-angle neutron scattering measurements to more fully understand the behavior of dibenzylidene sorbitol in a polyethylene matrix. The small-aangle neutron scattering clearly shows that the disappearance of the DBS fibrils is concentration dependent and for 2% DBS the midpoint of the dissolution is at 145°C and for 1% is ~ 20°C lower.
Description
Acknowledgements:
This research was supported by the European Regional Development Fund (FEDER), through COMPETE2020 under the PT2020 program (POCI-01-0145-FEDER-023423), by the Portuguese Foundation for Science and Technology (UID/Multi/04044/2013), (UC4PE and Centro2020 PAMI - ROTEIRO/0328/2013 (Nº 022158).. The SANS measurements were made at the STFC ISIS Facility using the LOQ instrument with the help of ISIS Staff. We are grateful to Dr Stephen King for his help. We thank Naresuan university for supporting SP during her Ph.D. and Faculty of Science Naresuan University for funding short visits.
Keywords
Crystallization Morphology Nanoparticles Shear Orientation Small-angle neutron scattering
Citation
Mitchell, G. R., Pratumshat, S., & Olley, R. (2019). Polyethylene and the Nucleating Agent: Dibenzylidene Sorbitol, a Neutron Scattering Study. Applied Mechanics and Materials, 890, 199–204. https://doi.org/10.4028/www.scientific.net/amm.890.199
Publisher
Trans Tech Publications