Rheological fingerprinting and applications of cellulose nanocrystal based composites: A review

Tom, Catherine; Sangitra, Surya Narayana; Pujala, Ravi Kumar

doi:10.1016/j.molliq.2022.121011

Cited by 11 publications

(4 citation statements)

References 166 publications

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“…A similar effect was reported in the presence of other classes of hydrophilic polymer matrices such as poly(vinyl alcohol) (PVA), polyethylene glycol (PEG), or poly vinylpyrrolidone (PVP), when CNCs or CNFs were added to these polymers. Thanks to their high aspect ratio and high interaction of CNFs with starch, through hydrogen bonding, the presence of CNFs restrained the flowing of plasticized starch chains in the melt …”

Section: Resultsmentioning

confidence: 99%

“…Thanks to their high aspect ratio and high interaction of CNFs with starch, through hydrogen bonding, the presence of CNFs restrained the flowing of plasticized starch chains in the melt. 31 The melt rheology of the PBAT/TPS blends with varying LCNF contents was studied at 150 °C through sweep measurement of the storage modulus G′, loss modulus G″, and complex viscosity η* as a function of frequency f in the linear domain (Figure 3). The neat PBAT matrix exhibited a liquid-like character with G″ significantly higher than G′ (more than 1 order of magnitude over the whole frequencies studied).…”

Section: Melt Rheology Of Tps/lcnfmentioning

confidence: 99%

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Mitigating the Water Sensitivity of PBAT/TPS Blends through the Incorporation of Lignin-Containing Cellulose Nanofibrils for Application in Biodegradable Films

Aouay,

Magnin,

Lancelon-Pin

et al. 2024

ACS Sustainable Chem. Eng.

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Poly(butylene adipate terephthalate)/thermoplastic starch (PBAT/TPS) blends are a significant family of biodegradable plastics holding more than 10% of the market share with widespread applications such as biodegradable bags and mulching films. However, in commercial PBAT/TPS blends, the TPS content seldom exceeds 20−30 wt % since the TPS phase negatively impacts the mechanical properties of the film and increases the water sensitivity. This increases the cost of the material and reduces its biobased content. To address this limitation, up to 10 wt % lignin-containing cellulose nanofibrils (LCNFs) with a significant lignin content (around 20 wt %) were added to PBAT/TPS blends using twinscrew extrusion. The mechanical, morphological, rheological, and water sorption properties of the films were then investigated. The incorporation of LCNFs positively influenced both the ultimate strength and tensile modulus, without sacrificing ductility. Scanning electron microscopy images revealed a nodular morphology of TPS, and the inclusion of LCNFs induced an increase in the size of the dispersed TPS nodules, accompanied by a broadening of the size distribution. The addition of LCNFs also resulted in an increase in the melt stiffness of the blend and a substantial reduction in moisture sorption at both normal and high relative humidity levels, markedly contributing to mitigating the water sensitivity of PBAT/TPS blends. As a proof of concept, thin films from PBAT/TPS/LCNF blends were fabricated through blown-film extrusion, confirming that the incorporation of LCNFs did not impact the material processing. The results offer a sustainable, fully biobased alternative to improve the mechanical properties, mitigate water sensitivity in PBAT/TPS blends, and concomitantly increase their biobased content.

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Section: Resultsmentioning

confidence: 99%

Section: Melt Rheology Of Tps/lcnfmentioning

confidence: 99%

Mitigating the Water Sensitivity of PBAT/TPS Blends through the Incorporation of Lignin-Containing Cellulose Nanofibrils for Application in Biodegradable Films

Aouay,

Magnin,

Lancelon-Pin

et al. 2024

ACS Sustainable Chem. Eng.

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“…Jojoba oil is a component in a wide variety of best-selling cosmetics and toiletries for the face and body, such as moisturisers and sunblocks. [161,162,163] There is evidence to suggest that it assists the body in absorbing topical drugs. Due to the high wax ester content in jojoba oil, it can be used as an efficient treatment for barrier repair in dermatoses such as seborrheic dermatitis, eczematous dermatitis, atopic dermatitis, and acne vulgaris [164].…”

Section: Jojoba Oilmentioning

confidence: 99%

Role of Essential Oils and Bioactive Components for Manufacturing Cosmetic Items

Aditi¹,

Dabral²

2023

J. Res. Appl. Sci. Biotechnol.

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The cosmetics industry has been forced to search for new active chemicals as a result of increasing customer demand as well as stricter international regulations. Botanical extract offers a source of new active chemicals that is nearly endless and may be used to make cosmetics. Due to their olfactory character in the creation of fragrances and perfumes and the many beneficial properties of their individual components (EOCs), essential oils (EOs) are becoming increasingly popular natural ingredients in the cosmetics and toiletries industry. These properties include anti-inflammatory, antimicrobial, and antioxidant properties (e.g., moisturizers, lotions and cleanser in skin care cosmetics; conditioners, masks or antidandruff products in hair care products; lipsticks, or fragrances in perfumery). It is difficult to generalise the possible applications of essential oils in cosmetics and toiletries because each essential oil has its own unique chemical profile, which is connected with its own particular collection of benefits. Instead, formulators need to make an effort to discover acceptable mixes of essential oils or essential oil compounds in order to get the results they want from the completed goods. This paper presents a detailed examination of the existing research on the usage of essential oils and essential oil compounds (EOs and EOCs) in the cosmetics sector. In addition, we will focus on a few critical topics regarding the safety of essential oils and essential oil compounds used in the cosmetics sector. When formulators of cosmetics are working to perfect products that are based on botanical extracts, they are very likely to find the information offered in this review to be valuable.

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“…For construction/preparation design and application of nanocomposites, the usage of nanofillers that are low cost, abundance, good physical properties, biodegradability, renewability and safety is one of the most important topics [7,8]. From the viewpoint of energy and environmental issues, nanofillers such as bacterial cellulose nanofiber (BCNF) with high mechanical properties are potentially applicable as a reinforcement filler to produce a polymer nanocomposite with ideal performance because BCNF can form a well-defined nanofiber network in the gel or polymer [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Poly(methyl methacrylate)/ bacterial cellulose nanofiber nanocomposites prepared by solution casting method and its reinforcement study

Asiani,

Mirshafiei

2024

CNJ

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Bacterial cellulose nanofibers as biobased reinforcement with biodegradability, renewability and good physical properties for the lightweight construction design of polymer composite materials with high performance are often explored. The current work addresses the fabrication of a series types of poly(methyl methacrylate) (PMMA) composites consisting of three different concentrations of bacterial cellulose nanofiber (BCNF) networks (1, 2, and 3 Wt.%) by solution casting method. The prepared PMMA/BCNF was characterized with scanning electron microscopy and thermogravimetric analysis (TGA). It was evident that the PMMA/BCNF nanocomposite film (1 Wt.%) has a flat and smooth surface and the BCNF filler is scattered on the PMMA surface matrix but barely detected in the PMMA/BCNF composite film due to the compatibility between the PMMA matrix and BCNF filler. TGA analysis demonstrates that plots shifted to higher temperatures with the increase of BCNF concentration in PMMA matrix. The wettability and mechanical properties of obtained composite films were studied and compared to neat PMMA. The results show that the PMMA/BCNF nanocomposite film (1 Wt.%) has the best hydrophilicity and mechanical properties such as tensile strength, tensile strain, and Young's modulus. This work is intended to spur all researchers to more research and development for enhanced potential application of PMMA nanocomposites that are reinforced with BCNF in a wide application fields such as photocatalysis-wastewater treatment, packaging, flexible screens, optically transparent films.

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Rheological fingerprinting and applications of cellulose nanocrystal based composites: A review

Cited by 11 publications

References 166 publications

Mitigating the Water Sensitivity of PBAT/TPS Blends through the Incorporation of Lignin-Containing Cellulose Nanofibrils for Application in Biodegradable Films

Mitigating the Water Sensitivity of PBAT/TPS Blends through the Incorporation of Lignin-Containing Cellulose Nanofibrils for Application in Biodegradable Films

Role of Essential Oils and Bioactive Components for Manufacturing Cosmetic Items

Poly(methyl methacrylate)/ bacterial cellulose nanofiber nanocomposites prepared by solution casting method and its reinforcement study

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