Rheological property and curing behavior of poly(amide-co-imide)/multi-walled carbon nanotube composites

摘要: Poly(amide-co-imide) (PAI)/multi-walled carbon nanotube (MWCNTs) composites were prepared by using solution mixing with ultrasonication excitation in order to investigate effects of MWCNTs on rheological properties and thermal curing behavior. Steady shear viscosity the composite showed bell shaped curves three characteristic patterns: thickening, thinning, Newtonian plateau Both storage modulus complex increased due higher molecular interaction than that pure PAI resin. Especially, hydrogen peroxide treated MWCNT/PAI had highest viscosity. Glass transition temperature PAI/MWCNT was increasing MWCNT content time since mobility molecules reduced as more constraints generated chains. It found conditions are determined considering weight fraction surface modification internal structure properties.