Effect of heat treatment on thermal resistance, transparency and antimicrobial activity of sonicated ginger cellulose film

Abral, Hairul; Ariksa, Jeri; Mahardika, Melbi; Handayani, Dian; Aminah, Ibtisamatul; Sandrawati, Neny; Sugiarti, Eni; Muslimin, Ahmad Novi; Rosanti, Santi Dewi

doi:10.1016/j.carbpol.2020.116287

Cited by 27 publications

(12 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The oxidation process creates radicals that can induce chain scission, thus reducing the components’ molecular weight and mechanical strength [ 47 ]. In addition, heat exposure has been reported to induce chain relaxation, promoting cellulose crystallization and the reformation of hydrogen bonds [ 29 ]. Thus, two opposing effects take place during the sample’s exposure to UV and heat.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Lignin and Xylan as Interface Engineering Additives for Improved Environmental Durability of Sustainable Cellulose Nanopapers

Beļuns

Platnieks

Gaidukovs

et al. 2021

IJMS

View full text Add to dashboard Cite

Cellulose materials and products are frequently affected by environmental factors such as light, temperature, and humidity. Simulated UV irradiation, heat, and moisture exposure were comprehensively used to characterize changes in cellulose nanopaper (NP) tensile properties. For the preparation of NP, high-purity cellulose from old, unused filter paper waste was used. Lignin and xylan were used as sustainable green interface engineering modifiers for NP due to their structural compatibility, low price, nontoxic nature, and abundance as a by-product of biomass processing, as well as their ability to protect cellulose fibers from UV irradiation. Nanofibrillated cellulose (NFC) suspension was obtained by microfluidizing cellulose suspension, and NP was produced by casting films from water suspensions. The use of filler from 1 to 30 wt% significantly altered NP properties. All nanopapers were tested for their sensitivity to water humidity, which reduced mechanical properties from 10 to 40% depending on the saturation level. Xylan addition showed a significant increase in the specific elastic modulus and specific strength by 1.4- and 2.8-fold, respectively. Xylan-containing NPs had remarkable resistance to UV irradiation, retaining 50 to 90% of their initial properties. Lignin-modified NPs resulted in a decreased mechanical performance due to the particle structure of the filler and the agglomeration process, but it was compensated by good property retention and enhanced elongation. The UV oxidation process of the NP interface was studied with UV-Vis and FTIR spectroscopy, which showed that the degradation of lignin and xylan preserves a cellulose fiber structure. Scanning electron microscopy images revealed the structural formation of the interface and supplemented understanding of UV aging impact on the surface and penetration depth in the cross-section. The ability to overcome premature aging in environmental factors can significantly benefit the wide adaption of NP in food packaging and functional applications.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The drawbacks of using cellulose and xylan are related to their hydrophilic structures with a high affinity for water [ 29 ]. The use of lignocellulose reduces water absorption [ 3 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Lignin and Xylan as Interface Engineering Additives for Improved Environmental Durability of Sustainable Cellulose Nanopapers

Beļuns

Platnieks

Gaidukovs

et al. 2021

IJMS

View full text Add to dashboard Cite

show abstract

“…Notably, the peak at around 1,640 cm -1 was the characteristic of the sodium carboxylate group originating from the TEMPO-mediated oxidation. This peak shifted to a lower wavenumber value with a higher heat treatment temperature, which was probably related to the formation of intra-and interfibrillar hydrogen bonds promoted by the heat treatment (Abral et al 2020). Additionally, a new band at around 1,740 cm −1 appeared as the treatment temperature increased, which was probably ascribed to the carbonyl bonds in chromophore groups formed during the heat treatment (Barbash et al 2016).…”

Section: Chemical Analysis Of the Thermally Modified To-cnf Filmsmentioning

confidence: 89%

Alteration of the Optical and Mechanical Characteristics of Cellulose Nanofibre Films Under Thermal Treatment

Niskanen

Zhang

Liimatainen

et al. 2021

Preprint

View full text Add to dashboard Cite

Nanocelluloses and their different designs, such as films and nanopapers, have gained considerable interest in many application areas due to their unique properties. For many purposes, such as for packaging and electronics, the thermal stability of nanocellulose materials is a crucial characteristic. In this study, the effects of heat treatment (100ºC, 150ºC and 200ºC) on the optical and mechanical properties of 2,2,6,6-tetramethylpiperidinyl-1-oxy radical-oxidised cellulose nanofibre (TO-CNF) films were investigated, especially the alteration of the colour, complex refractive index and birefringence of the films. Exposing TO-CNF films to high temperatures (> 150ºC) induced permanent transformations in the CNF structure, leading to an increase in the refractive index, decreases in the birefringence and crystallinity index, colour darkening and significant deterioration of the mechanical properties.

show abstract

“…The second bleaching process was conducted using a 7% ( v / v ) solution of H 2 O 2 mixed with a solution of 4% ( w / v ) NaOH, stirred at 70 °C for 2 h [ 4 ], and then washed with distilled water until it obtained a neutral pH. Acid hydrolysis was conducted using a solution of 5M HCl at 50 °C for 12 h [ 23 ], and then washed with distilled water until it obtained a neutral pH and NCC was obtained from tea waste in suspension.…”

Section: Methodsmentioning

confidence: 99%

“…The transparency of the nanocomposite films was measured using a UV-Vis spectrophotometer (Ocean Optics USB4000, Dunedin, FL, USA) via the ASTM standard D1003-00 method, with a transmittance between 400 nm and 800 nm. Measurement was repeated three times [ 23 ].…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Physicochemical Properties of Poly(vinyl) Alcohol Nanocomposites Reinforced with Nanocrystalline Cellulose from Tea (Camellia sinensis) Waste

Handoko

Yusuf

2021

Materials

View full text Add to dashboard Cite

The purpose of this study was to utilize cellulose from tea waste as nanocrystalline cellulose (NCC), which is used as a filler in poly(vinyl) alcohol (PVA) nanocomposites. To obtain the NCC, a chemical process was conducted in the form of alkali treatment, followed by bleaching and hydrolysis. Nanocomposites were formed by mixing PVA with various NCC suspensions. With chemical treatment, lignin and hemicellulose can be removed from the tea waste to obtain NCC. This can be seen in the functional groups of cellulose and the increase in crystallinity. The NCC had a mean diameter of 6.99 ± 0.50 nm. Furthermore, the addition of NCC to the PVA nanocomposite influenced the properties of the nanocomposites. This can be seen in the general increase in opacity value, thermal and mechanical properties, and crystallinity, as well as the decrease in the value of the swelling ratio after adding NCC. This study has revealed that NCC from tea waste can be used to improve the physicochemical properties of PVA film.

show abstract

Effect of heat treatment on thermal resistance, transparency and antimicrobial activity of sonicated ginger cellulose film

Cited by 27 publications

References 62 publications

Lignin and Xylan as Interface Engineering Additives for Improved Environmental Durability of Sustainable Cellulose Nanopapers

Lignin and Xylan as Interface Engineering Additives for Improved Environmental Durability of Sustainable Cellulose Nanopapers

Alteration of the Optical and Mechanical Characteristics of Cellulose Nanofibre Films Under Thermal Treatment

Synthesis and Physicochemical Properties of Poly(vinyl) Alcohol Nanocomposites Reinforced with Nanocrystalline Cellulose from Tea (Camellia sinensis) Waste

Contact Info

Product

Resources

About