Presented at Pittcon Tradeshow, Boston (MA) USA. March 2024.
By Alba Cárdenas, Alberto Ortín, Pilar del Hierro. Polymer Char, Valencia, Spain.
Abstract:
The determination of dilute solution viscosity is crucial in the polyethylene terephthalate (PET) industry due to its correlation to the polymer’s molecular weight, which determines its macroscopic properties and classification according to application grades. Historically, this test has been performed using manual glass capillary viscometers (Ubbelohde or suspended-level viscometers) measuring the drop times of the solvent and the polymer solution. In this work, a new fully automated method is appliced to PET viscosity determination based on a two-capillary differential viscometer. The precision of this new automated method is tested with virgin and recycled PeT with different ranges viscosity and crystallinity.
An overview of the Intrinsic Viscosity Analyzer high-temperature and ambient temperature models by Polymer Char
Webinar Brazilian Polymer Conference
Date: October 2021
Speaker: Alberto Ortín
December 2025
F. Cordero, A. Cárdenas, N. Fernández
October 2025
F. Cordero, A. Cárdenas, A. Ortín, N. Fernández
Published in LCGC The Column
August 2024
Published in Wiley Online Library
December 2022
Published in Plastics Engineering (SPE)
May 2018
Pages 48-51
B. Monrabal, A. Ortín, P. del Hierro
Revised for publication in The Column
April 2018
Pages 34-38
Published in The Column
February 2014
Pages 18-23
B. Monrabal, A. Ortín, P. del Hierro
Published in LCGC NA and EU
The Applications Notebook
Pages 709-710
December 2013
B. Monrabal, A. Ortín, P. del Hierro
Published in: Polymer Testing, Vol. 136
July 2024
Authors: Umang Agarwal, Jeroen van Westrenen
Poster
Presented at Pittcon Tradeshow
2025
Poster
Presented at the 8th ICPC
2023
Poster
Presented at the 8th ICPC
2023
Poster
Presented at the GPC Conference
2015
Poster
Presented at the 5th ICPC
2014
Poster
Presented at Pittcon
2011
