Preparation and characterisation of poly(vinyl) alcohol (PVA)/starch (ST)/halloysite nanotube (HNT) nanocomposite films as renewable materials
MetadataShow full item record
Poly(vinyl) alcohol (PVA)/starch (ST) films (weight ratio: 80/20) were prepared using a solution casting method, in the presence of 30 wt% glycerol (GL) as a plasticiser. Halloysite nanotubes (HNTs) were used as relatively new clay nanofillers to PVA/ST/GL blends for more economical material packaging. HNTs at filler loadings of 0.25, 0.5, 1, 3 and 5 wt% were incorporated to enhance mechanical and thermal properties of resulting PVA/ST/HNT nanocomposites. The tensile strength of such nanocomposites was found to be improved by 20 and 3.4%, respectively, with the inclusion of 0.25 and 0.5 wt% HNTs as opposed to those of PVA/ST/GL blends. However, a decreasing strength trend was observed beyond the HNT loading of 0.5 wt% due to HNT agglomeration, as evidenced by relevant micrographs via scanning electron microscopy (SEM). However, Young’s modulus was enhanced by 148% with the addition of 1 wt% HNTs when compared with PVA/ST/GL blends. X-ray diffraction (XRD) analysis is indicative of slightly intercalated nanocomposite structures formed at low HNT loadings of 0.25–1 wt%. In general, the incorporation of HNTs improved the thermal stability of PVA/ST/GL blends by increasing melting and decomposition temperatures along with the reduction in weight loss.
Showing items related by title, author, creator and subject.
Electrospun poly(lactic acid) (PLA): poly(ε-caprolactone) (PCL)/halloysite nanotube (HNT) composite fibers: Synthesis and characterizationHaroosh, Hazim; Dong, Yu (2015)The incorporation of nanoparticles into polymer nanocomposites via electrospinning offers an effective approach to tailor composite properties and fabricate nonwoven fibrous structures. This chapter describes a general ...
Microstructural, Mechanical and Thermal Characteristics of Recycled Cellulose Fiber-Halloysite-Epoxy Hybrid NanocompositesAlamri, Hatem; Low, It Meng (2012)Epoxy hybrid-nanocomposites reinforced with recycled cellulose fibers (RCF) and halloysite nanotubes (HNTs) have been fabricated and investigated. The dispersion of HNTs was studied by synchrotron radiation diffraction ...
Water absorption, mechanical, and thermal properties of halloysite nanotube reinforced vinyl-ester nanocompositesAlhuthali, A.; Low, It Meng (2013)Halloysite nanotube (HNT) addition to vinyl-ester resin (VER) is a field yet to contain an in-depth repository of information. This work represents the first study on the development and characterisation of HNT-reinforced ...