Hemicellulose β-ketoester prepared by reaction with alkyl ketene dimer and its self-emulsifying properties

Li, Yanan; Wu, Rina; Shi, Jiahui; Ma, Liyan; Liu, Shuai; Wang, Gaosheng; Lu, Peng

doi:10.1016/j.indcrop.2022.115600

Cited by 5 publications

(8 citation statements)

References 33 publications

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“…Having in view the results reported by Bildik et al [42] which obtained contact angle of 85.36 • and 92.16 • , respectively, for paper treated with AKD only (about 0.5% and 1% AKD content to cellulose fibres) and the chemical structure of xylan, the obtained values for contact angle of coated papers with xylan/1.5% AKD in this study are considered appropriate for food paper package. A higher increase in contact angle and oil barrier level was obtained by Li et al [54] for paper coated with emulsions based on xylan hemicelluloses and alkyl ketene dimer. In this case, for the coating amount of 6.11 g/m 2 , the oil resistance and water contact angle of the paper were increased about 5 times and 66% compared with those of untreated samples [54].…”

Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 68%

“…A higher increase in contact angle and oil barrier level was obtained by Li et al [54] for paper coated with emulsions based on xylan hemicelluloses and alkyl ketene dimer. In this case, for the coating amount of 6.11 g/m 2 , the oil resistance and water contact angle of the paper were increased about 5 times and 66% compared with those of untreated samples [54].…”

Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 68%

“…It can be observed that in the spectra from Figure 5a there is no AKD specific lactone ring peak at 1848 cm −1 . This proved that between xylan hemicellulose and AKD a covalent bond was formed, and AKD is not only physically adsorbed [54,59,60].…”

Section: The Structural Analysis By Ft-irmentioning

confidence: 73%

“…The most important modifications appear in the ranges from 2800 to 3500 cm −1 and 820 to 1790 cm −1 . The absorption peak in the range of 3300-3500 cm −1 was attributed to the stretching vibrations of the hydroxyl groups from xylan and hydrogen bonds between cellulose fibres [41,[54][55][56]. Within the interval between 820 and 1790 cm −1 is presented the stretching absorption of the β-glucosidic bonds between sugar units (896 cm −1 ).…”

Section: The Structural Analysis By Ft-irmentioning

confidence: 99%

“…As it can be observed, only WVTR and air permeability registered lower values (with 20% and 8% respectively) compared with the papers coated with a single layer (Figure 8b,c). Through successive coatings the pores on the paper surface are closed, reducing the porosity and free superficial energy of the substrate [18,54,64]. This can lead to enhancing Through successive coatings the pores on the paper surface are closed, reducing the porosity and free superficial energy of the substrate [18,54,64].…”

Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 99%

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Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer

et al. 2022

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In order to improve the hydrophobicity of xylan hemicellulose, a simple procedure of its chemical modification with alkyl ketene dimer (AKD), a non-toxic, cost-effective, and eco-friendly chemical, was performed. For this purpose, the reaction products of beech wood xylan and different amounts of hydrophobic AKD were used for paper surface treatment. Thus, the coatings of about 4.5 g/m2 were applied on both sides of base paper in single and three successive layers. To obtain a complete reaction between AKD and xylan hemicellulose, the coated papers were thermal cured (about 110 °C) and the effects of AKD content on the barrier (water, oil, and water vapours) and mechanical properties were analysed. The structural analyses by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) of coated samples emphasized the presence of β-keto-ester compounds as a result of the reaction between xylan hemicelluloses and AKD. This is confirmed by the improving of barrier properties as the AKD content in coating dispersion is higher. The good barrier performance and improved strength properties were obtained for the coated papers with xylan hemicellulose and 1% AKD applied on paper surface in three successive layers (about 4.5 g/m2). In this case, the water vapours transmission rate (WVTR) was 35% lower than those untreated and the resistance to air passing through coated papers was over 3 times higher compared with base paper. There are no results reported on the chemical reaction of xylan hemicelluloses with AKD as well as its application in coatings for paper packaging. In this context, the obtained results in this study can contribute to expand the applications area of hemicelluloses offering a sustainable strategy for the developing of food packaging papers with appropriate barrier properties using biopolymer coating materials.

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Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 68%

Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 68%

Section: The Structural Analysis By Ft-irmentioning

confidence: 73%

Section: The Structural Analysis By Ft-irmentioning

confidence: 99%

Section: Water Oil and Water Vapours Barrier Propertiesmentioning

confidence: 99%

See 3 more Smart Citations

Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer

et al. 2022

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A facile and sustainable strategy to construct recyclable paper with enhanced water and oil resistance for eco-friendly food packaging

Ma,

Zhang,

Chai

et al. 2024

Food Packaging and Shelf Life

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High-Efficiency Alkyl Ketene Dimer Emulsions Stabilized by Polyaluminum Chloride and Chitosan Complex

Chen,

Wang,

Zhou

et al. 2024

Langmuir

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Based on the interaction of polyaluminum chloride (PAC) and chitosan (CTS) at the molecular level, an organic/ inorganic composite material was designed for the preparation of alkyl ketene dimer (AKD) emulsion. This paper aimed to explore the influence of PAC/CTS on the physicochemical properties, microstructure, and sizing efficiency of AKD emulsions. The PAC/ CTS complex forms a denser adsorption layer at the oil−water interface at the microscopic level. With the increase in CTS concentration, the AKD emulsions displayed excellent stability after high-speed centrifugation. In addition, the addition of CTS can effectively improve the sizing efficiency of the emulsion. Therefore, this study proposed a strategy of PAC/CTS as an emulsifier, and the related interaction mechanism was explored, which further expands the application of inorganic/organic composites in the field of colloidal chemistry.

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Hemicellulose β-ketoester prepared by reaction with alkyl ketene dimer and its self-emulsifying properties

Cited by 5 publications

References 33 publications

Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer

Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer

A facile and sustainable strategy to construct recyclable paper with enhanced water and oil resistance for eco-friendly food packaging

High-Efficiency Alkyl Ketene Dimer Emulsions Stabilized by Polyaluminum Chloride and Chitosan Complex

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