Abstract
AbstractThermomechanical and rheological properties of epoxy blends modified with different percentages of a hyperbranched polymer have been reported. The addition of the hyperbranched modifier did not alter the rheological behavior of the blend. This effect is particularly advantageous for some composite manufacturing techniques because it allows for the establishment of low viscosity during processing. Morphological development was studied under curing by hot stage microscopy. The cryo‐fractured surfaces of the cured samples were analyzed by scanning electron microscopy. The morphological analysis showed that the blends did not phase separate at any modifier percentage. This result was further supported by dynamic mechanical testing (DMTA) on cured samples. In fact, DMTA showed a single relaxation peak for all the formulations studied. The dynamic testing was also used to assess the damping properties of the systems. The blends of this study were also compared with similar systems modified with poly(ε‐caprolactone), which were the subjects of a previous article. POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
