PVA/Graphene Nanocomposite: Morphology and its Thermal Properties

Abdullah, Abu Hannifa; Ismail, Zulhelmi; Abidin, Anis Sakinah Zainal; Ismail, Fadwa Sameeha; Yusoh, Kamal

doi:10.1088/1757-899x/319/1/012011

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…5 Polyvinyl alcohol (PVA) has emerged as a polymer matrix of choice to be a conventional battery separator due to its excellent film forming ability easy processing, water-soluble synthetic polymer manufactured globally, good chemical resistance, and excellent mechanical properties, [15][16][17][18] derived from the hydrolysis of polyvinyl acetate and extensively explored for its potential as a nanocomposite material. 19,20 PVA is considered environmentally friendly due to its ease of degradation in environments and cost-effectiveness. Additionally, PVA exhibits commendable attributes such as thermal stability, flexibility, optical properties, and oxygen barrier capabilities.…”

Section: Introductionmentioning

confidence: 99%

Polymer electrolyte membrane based on PVA/LiClO4 nanocomposite reinforced cellulose nanocrystalline from corncob for lithium‐ion battery

Purwanti,

Wahyuningrum,

Rochliadi

et al. 2024

Journal of Polymer Science

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In the field of high‐energy‐density lithium‐ion battery applications, Polymer electrolyte membranes (PEMs) have garnered significant attention due to their favorable mechanical properties and compatibility with lithium metal anodes. However, their relatively lower ionic conductivity compared to liquid electrolytes, making this problem a challenge for further research. In this study, we present a new approach to overcome these limitations, resulting in PEMs that exhibit exceptional ionic conductivity, flexibility, and interface stability. This achievement was realized by blending polyvinyl alcohol (PVA)/LiClO4 composite reinforced cellulose nanocrystalline (CNC), which is sourced from well and carefully isolated corncob cellulose. PEMs show remarkable improvements regarding ionic conductivity and mechanical strength. Membrane transparency decreased with increasing CNC addition. The maximum improvement mechanical strength was observed with the addition of 5% CNC, namely elongation at break (strain) increased by 15%. At the same composition shows an increase in ionic conductivity to 1.31 × 10−4 S/cm. This study provides the potential of precise material design and composition optimization in overcoming drawbacks associated with conventional PEMs. The findings not only advance the current understanding but also provide a promising avenue for the development of high‐performance PEMs, which are critical for the evolution of future energy storage technologies.

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Section: Introductionmentioning

confidence: 99%

Polymer electrolyte membrane based on PVA/LiClO4 nanocomposite reinforced cellulose nanocrystalline from corncob for lithium‐ion battery

Purwanti,

Wahyuningrum,

Rochliadi

et al. 2024

Journal of Polymer Science

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“…PVA is widely used in adhesive industry and can readily form thin films to protect the surface from atmosphere and liquid, and its mechanical properties depend on the polymerization degree and crosslinking density. [ 4–6 ]…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Properties of Sulfonated CNT‐Doped Poly(aniline‐co‐carbazole)‐PVA Conductive Films

Lakouraj

Norouzian

Tavakoli

2023

Macro Materials & Eng

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Conductive flexible films are successfully synthesized from polyvinyl alcohol matrix and poly(aniline‐co‐carbazole) charge carrier. To improve the mechanical properties of polyvinyl alcohol and promote charge transition in the conductive copolymer, dual purpose sulfonated multiwall carbon nanotube is added. Conductivity is enhanced via sulfonic acid protonic dopant and mechanical property is increased by its hexagonal nanorods. Nanocomposites are prepared by adding 0.025, 0.050, and 0.075 g of carbon nanotube which is added at 1%, 3%, and 5% loads to the polymer matrix. Films are characterized by infrared, UV–vis, X‐ray diffraction, scanning electron microscopy, and thermogravimetric analysis. Conductivity is measured by the four‐probe technique and mechanical property is assessed through tensile tests and dynamic mechanic thermal analysis. A 5 × 10−6 S cm−1 conductivity and 116 MPa tensile strength are recorded for the conductive film with optimum dopant/nanocomposite loads. The electrochemical property and corrosion resistance are studied by cyclic voltammetry and Tafel curves, respectively. The conductive films show an increase in corrosion potential and a decrease in corrosion current referring to a reliable corrosion protection film. The water uptake and contact angle of the films are measured to be 157% and 80.1° respectively to confirm its required hydrophilic property.

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