Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin

Poletto, Matheus; Zattera, Ademir J.

doi:10.1590/s1516-14392013005000112

Cited by 46 publications

(27 citation statements)

References 23 publications

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“…Lignin with a higher proportion of guaiacyl units has a higher activation energy and a higher thermal stability. However, noncovalent interactions can also affect the thermal properties of lignins (e.g., hydrogen bonding) [28]. For the sake of application purposes, these results show the potential of the LB lignin for direct applications in biocomposites where a higher thermal resistance is required.…”

Section: Samplementioning

confidence: 78%

Chemical Composition and Thermal Behavior of Kraft Lignins

Ház

Jablonský

Šurina

et al. 2019

Forests

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Lignin has great potential for utilization as a green raw material or as an additive in various industrial applications, such as energy, valuable chemicals, or cost-effective materials. In this study, we assessed a commercial form of lignin isolated using LignoBoost technology (LB lignin) as well as three other types of lignin (two samples of non-wood lignins and one hardwood kraft lignin) isolated from the waste liquors produced during the pulping process. Measurements were taken for elemental analysis, methoxyl and ash content, higher heating values, thermogravimetric analysis, and molecular weight determination. We found that the elemental composition of the isolated lignins affected their thermal stability, activation energies, and higher heating values. The lignin samples examined showed varying amounts of functional groups, inorganic component compositions, and molecular weight distributions. Mean activation energies ranged from 93 to 281 kJ/mol. Lignins with bimodal molecular weight distribution were thermally decomposed in two stages, whereas the LB lignin showing a unimodal molecular weight distribution was decomposed in a single thermal stage. Based on its thermal properties, the LB lignin may find direct applications in biocomposites where a higher thermal resistance is required.

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Section: Samplementioning

confidence: 78%

Chemical Composition and Thermal Behavior of Kraft Lignins

Ház

Jablonský

Šurina

et al. 2019

Forests

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“…Due to the phenolic nature, lignin has interesting qualities for replacing inorganic fillers. It provides biodegradability and thermoplastic characteristics to polymeric materials, while increasing their oxidation and thermal resistance [9][10] . Incorporation of lignin in starch matrixes modifies the physical and chemical properties of the matrixes.…”

Section: Introducionmentioning

confidence: 99%

Effect of the Glycerol and Lignin Extracted from Piassava Fiber in Cassava and Corn Starch Films

et al. 2015

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“…The FT-IR spectra of isolated SLS was recorded from 400 to 4000 cm −1 , to ensure its chemical structure and fingerprint, using a JASCO 300-E FT-IR spectrometer by scanning 5 times in a resolution of 4 cm −1 . The sample was carried out by using the potassium bromide pellet technique (Poletto & Zattera, 2013).…”

Section: Preparing Sls From Extracted Ligninmentioning

confidence: 99%

The utilization of sodium lignosulphonate extracted from Egyptian rice straw in leather tanning process

Nasr

Taha²,

Yosef³

et al. 2017

MKKP

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Massive quantities of rice straw are burned annually in Egypt and caused environmental hazards. The present study investigated the utilization of rice straw to produce sodium lignosulphonate (SLS) as a water-soluble derivative of lignin in leather tanning and evaluate its usage as a tanning or re-tanning material as well as its effect on leather quality. The results of testing SLS as a leather tanning agent were unsatisfactory due to its slight effect on shrinkage temperature of leathers, unlike its use as a re-tanning material. Four concentrations of SLS (0%, 5%, 10%, and 20%) were used in re-tanning forty of sheep wet-blues. The results showed that using SLS as a re-tanning agent with concentration till 10% from pelts weight enhances some organoleptic properties, such as fullness and general appearance together with slight improvement in physical properties of leathers. Moreover, the addition of SLS with concentration 20% led to an excessive swelling in the collagen fibers as shown from depicted scanning electron micrographs and decreased trends of physical properties.

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Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin

Cited by 46 publications

References 23 publications

Chemical Composition and Thermal Behavior of Kraft Lignins

Chemical Composition and Thermal Behavior of Kraft Lignins

Effect of the Glycerol and Lignin Extracted from Piassava Fiber in Cassava and Corn Starch Films

The utilization of sodium lignosulphonate extracted from Egyptian rice straw in leather tanning process

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