Hemicelluloses/montmorillonite hybrid films with improved mechanical and barrier properties

Chen, Gegu; Qi, Xin; Li, Mingpeng; Guan, Ying; Bian, Jing; Peng, Feng; Chen, Yao; Sun, Run‐Cang

doi:10.1038/srep16405

Cited by 33 publications

(15 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, special attention has been given to renewable and bio-based materials because of their abundance, biodegradability, biocompatibility, and low toxicity [2][3][4][5]. Besides, bio-based materials (chitosan [6], starch [7], hemicelluloses [6,8], and so on) are suitable for food packaging film due to their excellent oxygen barrier. As we know, high mechanical strength, flexibility, and good oxygen barriers are essential for the food packaging film [9].…”

Section: Introductionmentioning

confidence: 99%

Turning Wood Autohydrolysate Directly into Food Packing Composite Films with Good Toughness

Niu

et al. 2018

International Journal of Polymer Science

Self Cite

View full text Add to dashboard Cite

Bio-based composite films were produced by incorporating wood autohydrolysate (WH), chitosan (CS), and cellulose nanocrystals (CNC). In this work, WH was directly utilized without further purification, and CNC was introduced as the reinforced material to prepare WH-CS-CNC composite films with excellent properties. The effects of CNC on the properties of WH-CS-CNC composite films were investigated by characterizing their structures, mechanical properties, oxygen barrier, and thermal stability properties. The results suggested that CNC could improve tensile strength of the composite films, and the tensile strain at break could be up to 4.7%. Besides, the oxygen permeability of the prepared composite films could be as low as 3.57 cm 3 /day⋅m 2 ⋅kPa, making them suitable for the food packaging materials. These above results showed that the addition of CNC is an effective method to enhance the toughness of composite films. In addition, WH-CS-CNC composite films have great potential in the field of sustainable food packing materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Turning Wood Autohydrolysate Directly into Food Packing Composite Films with Good Toughness

Niu

et al. 2018

International Journal of Polymer Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…It was found that the optimum proportions of HWE and MMT in the nanocomposite films was 1:1.5. This result showed that the HWE-MMT based films offered superior mechanical performance in comparison to that of the films prepared using highly purified hemicelluloses and MMT4143. This suggested that, in the HWE-MMT based nanocomposite films the higher tensile strength may be related to the native lignin and lignin-carbohydrate complexes.…”

Section: Resultsmentioning

confidence: 91%

“…6). Combined with the aligned platelets and tightly packed structure, as revealed by SEM and AFM, these films were expected to provide good gas barrier performance4142.…”

Section: Resultsmentioning

confidence: 99%

Facile synthesis of high strength hot-water wood extract films with oxygen-barrier performance

Chen

Wang

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

Biobased nanocomposite films for food packaging with high mechanical strength and good oxygenbarrier performance were developed using a hot-water wood extract (HWE). In this work, a facile approach to produce HWE/montmorillonite (MMT) based nanocomposite films with excellent physical properties is described. The focus of this study was to determine the effects of the MMT content on the structure and mechanical properties of nanocomposites and the effects of carboxymethyl cellulose (CMC) on the physical properties of the HWE-MMT films. The experimental results suggested that the intercalation of HWE and CMC in montmorillonite could produce compact, robust films with a nacre-like structure and multifunctional characteristics. This results of this study showed that the mechanical properties of the film designated F CMC0.05 (91.5 MPa) were dramatically enhanced because the proportion of HWE, MMT and CMC was 1:1.5:0.05. In addition, the optimized films exhibited an oxygen permeability below 2.0 cm 3 μm/day·m 2 ·kPa, as well as good thermal stability due to the small amount of CMC. These results provide a comprehensive understanding for further development of highperformance nanocomposites which are based on natural polymers (HWE) and assembled layered clays (MMT). These films offer great potential in the field of sustainable packaging.Natureal load-bearing materials, such as seashell nacre, are well known for their extraordinary mechanical properties that result from their highly ordered brick-mortar architecture. Nacre has inspired the fabrication of synthetic layered nanocomposite materials 1-3 . The introduction of clay into a polymer matrix can considerably enhance the thermal and mechanical properties of the polymer film and reduce oxygen permeability 4,5 . Therefore, a potential route for improving the oxygen barrier and mechanical properties of polymer films is the addition of layered clays such as montmorillonite (MMT) to form polymer/clay nanocomposites. In recent years, special attention has been given to the synthesis and characterization of nanocomposites that are based on natural polymers and assembling layered clays 6 . Increased attention is being paid to renewable resources, hence the feature of hemicelluloses including their abundance, biodegradability and biocompatibility have made them attractive 7,8 . However, using hemicelluloses to produce materials on an industrial scale is hampered by the high production costs associated with obtaining these materials with a high degree of purity 9 . It is well known that a major fraction of wood is present in the form of hemicelluloses and lignin which are present in the waste pulping liquor and must be removed during pulping to yield undegraded cellulose fibers 10 . Thus, extracting the valuable noncellulosic components from wood chips prior to pulping and converting them into biofuels or the value-added materials is financially beneficial to the pulping industry. The purpose of the proposed hot-water extraction (autohydrolysis processing, which could lead t...

show abstract

“…Guan and co-workers [ 35 ] added montmorillonite (MMT), a commonly used reinforcing agent into quaternized hemicellulose (QH) to prepare nanocomposite films and the tensile strength and elongation at break can reach 19.8MPa and 0.5% [ 36 ], respectively. To further improve the mechanical properties of QH/MMT composite film, Chen and co-workers [ 36 ] added polyvinyl alcohol (PVA) and chitin nanowhisker (NCH) to the QH/MMT film ( Table 3 ). The results showed that the composite films exhibited a substantial rough surface because the addition of PVA and NCH.…”

Section: Modification Of Hemicellulosementioning

confidence: 99%

Hemicellulose-Based Film: Potential Green Films for Food Packaging

et al. 2020

View full text Add to dashboard Cite

Globally increasing environmental awareness and the possibility of increasing price and dwindling supply of traditional petroleum-based plastics have led to a breadth of research currently addressing environmentally friendly bioplastics as an alternative solution. In this context, hemicellulose, as the second richest polysaccharide, has attracted extensive attention due to its combination of such advantages as abundance, biodegradability, and renewability. Herein, in this review, the latest research progress in development of hemicellulose film with regard to application in the field of food packaging is presented with particular emphasis on various physical and chemical modification approaches aimed at performance improvement, primarily for enhancement of mechanical, barrier properties, and hydrophobicity that are essential to food packing materials. The development highlights of hemicellulose film substrate are outlined and research prospects in the field are described.

show abstract

Hemicelluloses/montmorillonite hybrid films with improved mechanical and barrier properties

Cited by 33 publications

References 58 publications

Turning Wood Autohydrolysate Directly into Food Packing Composite Films with Good Toughness

Turning Wood Autohydrolysate Directly into Food Packing Composite Films with Good Toughness

Facile synthesis of high strength hot-water wood extract films with oxygen-barrier performance

Hemicellulose-Based Film: Potential Green Films for Food Packaging

Contact Info

Product

Resources

About