Rheokinetics of thermal-induced gelation of liquid polybutadiene resin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Liquid polybutadiene with high unsaturation of pendant vinyl groups are very sensitive for crosslinking reaction compared to other polymer systems. The curing kinetics of LPB over a wide range of angular frequencies at different constant temperatures (130 to 160 °C) have been investigated rheologically using small amplitude oscillatory shear flow experiments. The elastic storage modulus, G', at a constant temperature in the vicinity of the gel point increases abruptly, and the magnitude of the elevation in G was found to be temperature dependent. Similar behaviors have been observed for complex viscosity and loss modulus at identical conditions. The gel temperature (Tgel) and gel time (tgel) were evaluated from the crossover point of G' and G" or more accurately from the temperature at which tan5 is angular frequency independent (i.e., all curves of tan5 at deferent constant angular frequencies coincided and became no longer frequency dependent).

Original languageEnglish (US)
Title of host publicationSPE ANTEC 2020
Subtitle of host publicationThe Annual Technical Conference for Plastic Professionals
PublisherSociety of Plastics Engineers
Pages1066-1070
Number of pages5
ISBN (Electronic)9781713821182
StatePublished - 2020
EventSPE ANTEC 2020: Annual Technical Conference for Plastic Professionals - Virtual, Online
Duration: Mar 30 2020May 5 2020

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume2

Conference

ConferenceSPE ANTEC 2020: Annual Technical Conference for Plastic Professionals
CityVirtual, Online
Period3/30/205/5/20

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics

Fingerprint Dive into the research topics of 'Rheokinetics of thermal-induced gelation of liquid polybutadiene resin'. Together they form a unique fingerprint.

Cite this