Highly transparent PVA/nanolignin composite films with excellent UV shielding, antibacterial and antioxidant performance

Yang, Weijun; Ding, Hui; Qi, Guochuang; Li, Chengcheng; Xu, Pengwu; Zheng, Ting; Zhu, Xiangmiao; Kenny, J. M.; Ma, Piming

doi:10.1016/j.reactfunctpolym.2021.104873

Cited by 62 publications

(37 citation statements)

References 57 publications

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“…The obtained BL was used directly without addtional treatment. PVA glue (10 wt%) was prepared using a method introduced in recent studies ( Zhang et al, 2020 ; Yang et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Enabling the complete valorization of hybrid Pennisetum: Directly using alkaline black liquor for preparing UV-shielding biodegradable films

Qian

Fan

Chen

et al. 2022

Front. Bioeng. Biotechnol.

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The conversion of lignocellulosic biomass into various high-value chemicals has been a rapid expanding research topic in industry and agriculture. Among them, alkaline removal and utilization of lignin are important for the accelerated degradation of biomass. Modern biorefinery has been focusing the vision on the advancement of economical, green, and environmentally friendly processes. Therefore, it is indispensable to develop cost-effective and simple biomass conversion technologies to obtain high-value products. In this study, the black liquor (BL) obtained from the alkaline pretreatment of biomass was added to polyvinyl alcohol (PVA) solution and used to prepare degradable ultraviolet (UV) shielding films, achieving direct and efficient utilization of the aqueous phase from alkaline pretreatment. This method avoids the extraction step of lignin fraction from black liquor, which can be directly utilized as the raw materials of films preparation. In addition, the direct use of alkaline BL results in films with similar UV-shielding properties, higher physical strength, and similar thermal stability compared with films made by commercial alkaline lignin. Therefore, this strategy is proposed for alkaline-pretreated biorefineries as a simple way to convert waste BL into valuable products and partially recover unconsumed sodium hydroxide to achieve as much integration of biomass and near zero-waste biorefineries as possible.

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“…The obtained BL was used directly without addtional treatment. PVA glue (10 wt%) was prepared using a method introduced in recent studies ( Zhang et al, 2020 ; Yang et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Enabling the complete valorization of hybrid Pennisetum: Directly using alkaline black liquor for preparing UV-shielding biodegradable films

Qian

Fan

Chen

et al. 2022

Front. Bioeng. Biotechnol.

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“…For instance, inorganic nanoparticles (graphene oxide, 3,4 titanium dioxide, [5][6][7] calcium zincate, 8 carbon quantum dots, 9 etc. 10,11 ) and organic nanoparticles (lignin, 12,13 modified nanocelluloses, [14][15][16][17] etc. 18,19 ) have been widely used to construct UV blocking materials.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of a polyvinyl alcohol-based hydrophobic fluorescent film via the Hantzsch reaction for broadband UV protection

et al. 2022

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“…As a typical representative of semi-crystalline polymers, polyvinyl alcohol (PVA) is derived from the alcoholysis of polyvinyl acetate and its prevailing industrial applications are primarily ascribed to its remarkable properties in terms of biodegradability, biocompatibility, film-forming, solvent resistance, etc. [ 1 ]. Although PVA serves as a promising alternative to petroleum-based plastics, its application fields are still restricted by its poor water tolerance.…”

Section: Introductionmentioning

confidence: 99%

High-Performance and Water Resistant PVA-Based Films Modified by Air Plasma Treatment

et al. 2022

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Plasma treatment is considered a straightforward, cost-effective, and environmental-friendly technique for surface modification of film materials. In this study, air plasma treatment was applied for performance improvement of pure PVA, cellulose nanocrystal (CNC)/PVA, and CNC/oxalic acid (OA)/PVA films. Compared with the original performance of pure PVA, the mechanical properties and water resistance of air plasma treated films were greatly improved. Among them, the CNC/OA/PVA film treated by three minutes of air plasma irradiation exhibits the most remarkable performance in mechanical properties (tensile strength: 132.7 MPa; Young’s modulus: 5379.9 MPa) and water resistance (degree of swelling: 47.5%; solubility: 6.0%). By means of various modern characterization methods, the wettability, surface chemical structure, surface roughness, and thermal stability of different films before and after air plasma treatment were further revealed. Based on the results obtained, the air plasma treatment only changed the surface chemical structure, surface roughness, and hydrophobicity, while keeping the inner structure of films intact.

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Highly transparent PVA/nanolignin composite films with excellent UV shielding, antibacterial and antioxidant performance

Cited by 62 publications

References 57 publications

Enabling the complete valorization of hybrid Pennisetum: Directly using alkaline black liquor for preparing UV-shielding biodegradable films

Enabling the complete valorization of hybrid Pennisetum: Directly using alkaline black liquor for preparing UV-shielding biodegradable films

Facile fabrication of a polyvinyl alcohol-based hydrophobic fluorescent film via the Hantzsch reaction for broadband UV protection

High-Performance and Water Resistant PVA-Based Films Modified by Air Plasma Treatment

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