Abstract
The present work investigates the effect of reactive polyester and kaolin on the mechanical and adhesive properties of brittle epoxy resin. The impact strength (IS), flexural strength and critical stress intensity factor (KC), as well as the adhesive strength under tensile and impact conditions, were evaluated as functions of the modifier content. The results obtained showed an improvement in the impact strength and flexural strength as well as adhesive strength under impact and tensile conditions due to kaolin and polyester addition. However, the flexural modulus decreased with the polyester and increased with the kaolin content. Hybrid compositions containing 30 wt.% of polyester and 30 wt.% of kaolin showed enhanced tensile adhesive strength as well as impact adhesive strength in comparison to the virgin epoxy resin, exhibiting a synergic effect. SEM micrographs confirmed the presence of a regular and homogeneous stratified structure with particles embedded in the polymer matrix, explaining the improvement of mechanical properties.
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.
