Chun WEI. Effects of the Kinds of Liquid Crystalline Polymers ( LCP) on the Curing Kinetics of EPOXY RESIN LCP Blends. [J]. Polymer Bulletin 18(3):76-81(2005)
DOI:
Chun WEI. Effects of the Kinds of Liquid Crystalline Polymers ( LCP) on the Curing Kinetics of EPOXY RESIN LCP Blends. [J]. Polymer Bulletin 18(3):76-81(2005) DOI: 10.14028/j.cnki.1003-3726.2005.03.011.
Effects of the Kinds of Liquid Crystalline Polymers ( LCP) on the Curing Kinetics of EPOXY RESIN LCP Blends
The curing kinetics of EP /DDS /LCP blends were studied through curing kinetic methods( autocatalytic kinetics and nth-order model) by isothermal DSC methods .The results showed that LCPU can accelerate the curing reaction
reduce the reaction activation energy .For the unmodified epoxy system and EP/DDS/LCPU modified system
the curing kinetics follows the autocatalytic kinetic mechanism in the range of α<40 % and α<60 % respectively
and the autocatalytic rate and non-catalytic rate all exceed the rate of unmodified epoxy .For the PHBHT /DDS /EP blends
it follows nth-order kinetic mechanism
and the reaction activation energy is greater than the EP/DDS/LCPU blends
which means that the PHBHT would not play part in speeding reaction rate .