Preparation and Properties of Chitosan/Lignin Composite Films

Chen, Long; Tang, Changyu; Ning, Nanying; Wang, Chaoyu; Fu, Qiang; Zhang, Qin

doi:10.1142/s0256767909004448

Cited by 92 publications

(48 citation statements)

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“…The spectrum of the product from run C2 (not shown) displays a similar signals pattern to that from run C1. In accordance with that reported in the literature [27,28], the characteristic absorption bands for chitosan in Figure 5 using chitosan show four of the five characteristic absorption bands for this polymer (signal at 1425 cm −1 disappeared) and one additional at 570 cm −1 , which corresponds to Fe-O stretching vibrations in magnetite and maghemite [8].…”

Section: Resultssupporting

confidence: 90%

Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step

Osuna

Gregorio‐Jáuregui

Gaona-Lozano

et al. 2012

Journal of Nanomaterials

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Chitosan-coated magnetic nanoparticles (CMNP) were obtained at 50 • C in a one-step method comprising coprecipitation in the presence of low chitosan content. CMNP showed high magnetization and superparamagnetism. They were composed of a core of 9.5 nm in average diameter and a very thin chitosan layer in accordance with electron microscopy measurements. The results from Fourier transform infrared spectrometry demonstrated that CMNP were obtained and those from thermogravimetric analysis allowed to determine that they were composed of 95 wt% of magnetic nanoparticles and 5 wt% of chitosan. 67% efficacy in the Pb +2 removal test indicated that only 60% of amino groups on CMNP surface bound to Pb, probably due to some degree of nanoparticle flocculation during the redispersion. The very low weight ratio chitosan to magnetic nanoparticles obtained in this study, 0.053, and the high yield of the precipitation reactions (≈97%) are noticeable.

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Section: Resultssupporting

confidence: 90%

Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step

Osuna

Gregorio‐Jáuregui

Gaona-Lozano

et al. 2012

Journal of Nanomaterials

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“…Depending on the source and extraction method used, the physico-chemical characteristics are different and influence the properties of materials in which are embedded. The effective use of lignin in composites with various biopolymers like PHB [12,13], starch [14], cellulose [15], chitosan [16] has been also reported in literature. Sahoo increasing polymeric dimethylene diphenyl diisocyanate (PMDI) compatibilizer content from 1% to 2%, due to a possible plasticization of the composite materials.…”

Section: Introductionmentioning

confidence: 81%

Evaluation of PLA–lignin bioplastics properties before and after accelerated weathering

Spiridon¹,

Leluk

Resmeriță³

et al. 2015

Composites Part B: Engineering

186

109

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“…Non‐toxic chemicals must be employed to process composites that are destined as a container or protective film for food packaging. Contrary to this, chitosan–lignin and gelatin fish–lignin films with improved mechanical properties have been recently obtained using lignin partially dissolved in strong organic solvents .…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal, and antioxidant properties of composite films prepared from durum wheat starch and lignin

et al. 2015

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Lignin conveys several important and useful characteristics to starch films depending on the lignin MW, extraction procedure, and lignin botanical source. In this study, lignin was obtained from durum wheat straw through the organosolv process, followed by fractionation according to solubility in alcohol. The alcohol-soluble lignin (ASL) was then used to prepare starch-ASL films. The mechanical properties, thermal stability, water solubility, color, and antioxidant activity of the resulting films were evaluated, and the starch-ASL films were also analyzed by means of SEM and attenuated total reflection infrared spectroscopy (ATR-IR). A procedure, to incorporate ASL, was developed and used to produce homogenous surfaces in starch-ASL films; agglomerations or undissolved particles of lignin were not observed in the starch matrix at microscopic level. ASL promoted significant decrease of the tensile strength (TS) and elastic modulus (EM), but an increase of elongation at break (EB) in films. Thermal analysis of the starch-ASL films showed high resistance to thermal degradation, due to the incorporation of ASL. In addition, the starch-ASL films exhibited antioxidant activity (2,2-diphenyl-1-picrylhydrazyl [DPPH]), which increased with increasing ASL content.

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Preparation and Properties of Chitosan/Lignin Composite Films

Cited by 92 publications

References 0 publications

Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step

Chitosan-Coated Magnetic Nanoparticles with Low Chitosan Content Prepared in One-Step

Evaluation of PLA–lignin bioplastics properties before and after accelerated weathering

Mechanical, thermal, and antioxidant properties of composite films prepared from durum wheat starch and lignin

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