pps proceeding - Abstract Preview
pps proceeding
Symposium: S02 - Nanocomposites and filled Polymers
Oral Presentation
 
 

Effect of Carbon Nano Tube (CNT) on PA/PE base Shape memory alloy

Mehranpour Milad (1)*, Mohammadi Seyed Ali (2), Ghasemi Ismail (3)

(1) Islamic Azad University Science and Research Branch - Tehran - Iran, (2) Islamic Azad University Science and research Branch - Tehran - Iran, (3) Iran Polymer and petrochemical Institute - Tehran - Iran

Shape memory polymers (SMPs) are new class of smart materials which their main characteristics is to recover its initial form after undergoing a large recoverable deformation via stimulation by heat , electricity , magnetic field and light . Non-conductive nature of polymers hinders the effect of stimulus such as heat and electricity to stimulate the shape recovery process. Shape memory polymers have two parts of soft and hard phase . That soft phase cause the deformation ability and other part is the harder phase and retentive initial form that called fixing phase. Having high rate of conductivity by conductive fillers such as MWCNT particles would be utilized in shape memory polymer alloys. Adding MWCNT particles to SMPs not only dramatically boosts their conductivity and accelerate the rate of shape recovery process but also MWCNTs at hard phase of SMPs reinforces the hard phase and increase the fixity and therefor recovery rate of SMPs . At the present work the PE/PA6 alloy compatibilized by polyethylene grafted maleic anhydride was blended by functionalized MWCNTs through acid treatment and was used as a shape memory material. In order to having selective localization of carbon nano tubes, two mixing procedure were selected. Thermal programing for inducing of shape memory properties considered using general tensile testing machine equipped with hot oven. The localized MWCNT in the well distributed polyamide phase might be causes to improve conductivity and better stimulate of SMP. The rheological properties and morphology of the samples were investigated by RMS and SEM. The results showed that well mixing of two phases as well as Nano filler. Finally the SMP properties of the composite showed improvement because of better conductivity and performed morphology.