Experimental Study of Polyvinyl Alcohol Nanocomposite Film Reinforced by Cellulose Nanofibers from Agave Cantala

Abstract

This paper presents an experimental study of addition of cellulose nanofibers (CNF) extracted by the chemical-ultrasonication process from agave cantala leaf plants in the matrix of polyvinyl alcohol (PVA). Combining these materials produce the nanocomposite film with a thickness of 30 μm. The nanocomposite characteristic was investigated by the addition of CNF (0, 2, 5, 8, and 10 wt%) in PVA suspension (3 wt.%). PVA/CNF nanocomposite films were prepared by a casting solution method. The fibrillation of fibers to CNF was analyzed using Scanning Electron Microscopy and Transmission Electron Microscopy. The nanocomposite film functional group's molecular chemical bond and structural analysis were tested using Fourier Transform Infrared and X-ray diffraction. The PVA/CNF nanocomposite film has significant advantages on the ultraviolet barrier, thermal stability tested by Differential Scanning Calorimetry and Thermogravimetric Analyzer, and tensile strength. Overall, the optimal addition of CNF is 8 wt.% in matrix, resulting in the highest crystallinity index (37.5%), the tensile strength and elongation at break was an increase of 79% and 138%, respectively. It has good absorbing ultraviolet rays (82.4%) and high thermal stability (365 o C).

Synthesis of Polyvinyl Alcohol-Chitosan Composite Film using Nanocellulose from Coconut Fibers (Cocos nucifera)

“…Figure 8 shows that adding nanocellulose as a filler increased the elongation at the break of the PVA-chitosan films, which is similar to other report [79]. Hajii et al [11] found elongation at break pure PVA and chitosan are 38.4 and 454 %.…”

“…Hydrogen bonds are formed in order to increase the strength of the polymer [78]. Yudhanto et al [79] has found that increasing nanocellulose composition from 2 to 5% lead to an increase in tensile strength. Moreover, Perumal et al [80] blended PVA-chitosan-nanocellulose and resulting tensile strength increase with an increase in nanocellulose composition (1, 3 and 5%).…”

Microstructure and mechanical properties of PA6/NBR nanocomposites fabricated by friction stir processing

“…Thus, the observation above shows that the input variables (T, ω, and S) will determine the distribution quality of clay particles on PA6/NBR blends. According to the XRD results, comparing X-ray diffraction patterns of the samples fabricated by FSP in this study and internal mixer [3,9] shows that the correct choice of friction stir process parameters can have a great effect on nanoparticle dispersion on the polymer matrix.…”

“…Thermoplastic elastomers (TPEs) are defined as a collection of copolymers (such as plastic and rubber) that consist of materials with both elastic (related to rubber phase) and strength (related to plastic phase) properties [1,2]. They have a wide application in industry due to their ability to stretch, to moderate elongation and return to their near original shape, excellent thermal, mechanical, and chemical resistances [3,4]. In recent years, a lot of articles reported on mechanical properties and fracture mechanisms of TPE blends [5][6][7].…”

Mechanical, Physical and Thermal Characterization of PVA (Polyvinyl Alcohol)/Chitosan Bioplastic Film

“…The highest intensity on the wave 3450 cm −1 shows the pure PVA film characteristic. The vibration band observed at 2928 cm -1 presence of intramolecular bond of C-H from the alkyl group [26][27][28]. Increasing the chitosan content in the PVA film reduces the intensity of the wave peaks.…”