Modified nanofibrillated cellulose–polyvinyl alcohol films with improved mechanical performance

Virtanen, Sanna; Vartianen, Jari; Setälä, Harri; Tammelin, Tekla; Vuoti, Sauli

doi:10.1039/c3ra46287k

Cited by 83 publications

(42 citation statements)

References 53 publications

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“…Hence, the stabilization of PVA polymer using a variety of additives is needed. Previous studies have confirmed that strong interfacial interaction is useful for acquiring excellent reinforcement effects . In this work, a systematic study have been carried out on the effect of LS additive concentration on the optical properties of PVA and concurrently correlated to the produced structural changes as revealed via X‐ray diffraction (XRD) analysis.…”

Section: Introductionmentioning

confidence: 93%

Optical and structural properties of polyvinyl alcohol loaded with different concentrations of lignosulfonate

Nouh

Elfadl

Benthami

et al. 2018

Vinyl Additive Technology

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Polyvinyl alcohol/lignosulfonate (PVA/LS) composite films have been prepared using casting technique. The effect of lignosulfonate concentrations (0.001, 0.005, 0.01, 0.05, 0.1 and 0.5 wt %) on the optical and structural properties of polyvinyl alcohol (PVA) has been investigated using UV-vis spectroscopy and X-ray diffraction. The results indicate that, the addition of LS led to a more compact structure of PVA, which resulted in an increase in its refractive index and amorphous phase. This was associated with a reduction in the optical energy gap that could be attributed to the increase in disorder structural of the composites. Moreover, the transmittance of PVA/LS composite film decreased with the increase of LS doping concentrations onto the PVA matrix. The results reflect the proper dispersion of LS in the PVA matrix that causes a strong intermolecular interaction between LS and PVA suggesting strong hydrogen bond formation between the hydroxyl group in PVA chains and the outer site groups of LS. Further, the transmission of the samples in the wavelength range of 370-780 nm, as well as any color changes, was studied. The color intensity ΔE, which is the color difference between the pure PVA sample and those with different LS concentration, increases with increasing the LS content and was accompanied by an increase in the yellow and red color components. J. VINYL ADDIT. TECHNOL., 25:85-90, 2019.

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Section: Introductionmentioning

confidence: 93%

Optical and structural properties of polyvinyl alcohol loaded with different concentrations of lignosulfonate

Nouh

Elfadl

Benthami

et al. 2018

Vinyl Additive Technology

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“…Poly(vinyl alcohol) (PVA) is a water soluble, non‐toxic, biodegradable, and biocompatible polymer that has been studied intensively in many research industries including drug‐delivery systems and artificial biomedical devices. However, hydrophilic nature and insufficient mechanical properties of PVA seriously limit its wider application . In the present study, PVA/POSS hybrid nanocomposite membranes were prepared by solution casting method.…”

Section: Introductionmentioning

confidence: 99%

“…However, hydrophilic nature and insufficient mechanical properties of PVA seriously limit its wider application. [10][11][12][13][14] In the present study, PVA/POSS hybrid nanocomposite membranes were prepared by solution casting method. Two types of POSS were used for the present study, anionic-octa(tetramethylammonium) (Octa-TMA) and poly(ethylene glycol) (PEG) functionalized POSS.…”

Section: Introductionmentioning

confidence: 99%

Effect of nanostructured polyhedral oligomeric silsesquioxane on the physical properties of poly(vinyl alcohol)

Parambath¹,

Ponnamma

Sadasivuni

et al. 2017

J of Applied Polymer Sci

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An effective amphiphilic polyhedral oligomeric silsesquioxane (POSS) encapsulated poly(vinyl alcohol) (PVA) nanocomposite was successfully fabricated by solution blending method. Anionic octa(tetramethylammonium) (Octa‐TMA) and poly(ethylene glycol) (PEG) were used as cage side groups in POSS (Octa‐TMA‐POSS and PEG‐POSS) for the present study. Transmission electron microscopic analysis revealed the uniform dispersion of POSS in the PVA matrix. Crystallinity of PVA/POSS system was computed from differential scanning calorimetric studies. The effect of POSS on the mechanical, dynamic mechanical, and dielectric properties of PVA has been analyzed and discussed in detail with respect to the weight percentage of POSS. The incorporation of POSS in PVA matrix remarkably enhances the Young's modulus of the matrix. The viscoelastic properties such as storage modulus, loss modulus, damping behavior, and glass transition temperature of the membranes were evaluated. The relaxation corresponding to the crystal–crystal slippage characteristic of semicrystalline polymers were observed in storage modulus curves of PVA/POSS system, suggesting the crystalline nature of matrix even in the presence of POSS. Less polar, inert, and stiff inorganic center core of POSS contributes to the reduced energy dissipation and dielectric constant of PVA/POSS system. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45447.

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“…[4][5][6] There are some problems faced by researchers in this eld, most of them are related to the highly polar surface of cellulose, which causes its low interfacial compatibility with non-polar polymeric matrices and the ensuing ber aggregation. 8 Typically, the use of coupling agents and the esterication of cellulose with fatty acids are two major approaches to improve interfacial interaction between cellulose and polymeric matrices. 8 Typically, the use of coupling agents and the esterication of cellulose with fatty acids are two major approaches to improve interfacial interaction between cellulose and polymeric matrices.…”

Section: Introductionmentioning

confidence: 99%

Towards mechanically robust cellulose fiber-reinforced polypropylene composites with strong interfacial interaction through dual modification

et al. 2015

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Strong interfacial interaction between bamboo cellulose fiber (BCF) and a polymeric matrix is very important to improve the mechanical properties of cellulose fiber-reinforced polymeric composites. In this study, we developed an effective approach to enhance the interfacial adhesion through modifying both polypropylene (PP) and cellulose fiber. Maleic anhydride was mechanochemically grafted onto PP to achieve the interaction with the reactive hydroxyl groups on the surface of 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO)-oxidized bamboo cellulose fiber (TBCF). Fourier transform infrared spectra and X-ray diffraction analysis indicated the existence of strong interfacial interaction between TBCF and the modified PP matrix. It was further found by thermogravimetric analysis that about 5 wt% of PP formed a strong combining force with TBCF after melt compounding.The combination of mechanochemical modification of PP and TEMPO-mediated oxidation of BCF showed a synergistic effect on the tensile strength of the prepared composites. The tensile strength of modified PP/TBCF (50/50 wt%) composites prepared through dual modification was remarkably improved compared to those of neat PP/TBCF composites and modified PP/BCF composites, enhanced by about 112.4% and 53.8%, respectively.

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Modified nanofibrillated cellulose–polyvinyl alcohol films with improved mechanical performance

Cited by 83 publications

References 53 publications

Optical and structural properties of polyvinyl alcohol loaded with different concentrations of lignosulfonate

Optical and structural properties of polyvinyl alcohol loaded with different concentrations of lignosulfonate

Effect of nanostructured polyhedral oligomeric silsesquioxane on the physical properties of poly(vinyl alcohol)

Towards mechanically robust cellulose fiber-reinforced polypropylene composites with strong interfacial interaction through dual modification

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