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  • Open Access

    REVIEW

    Cellulose-Based Films for Food Packaging Applications: Review of Preparation, Properties, and Prospects

    Xiaoyan Liu1,2, Zhao Qin1,2,*, Yuxiang Ma1,2, Huamin Liu1,2,*, Xuede Wang1,2

    Journal of Renewable Materials, Vol.11, No.8, pp. 3203-3225, 2023, DOI:10.32604/jrm.2023.027613 - 26 June 2023

    Abstract Packaging is a food preservation technology widely used in the world. Naturally-sourced, biodegradable polymers are becoming increasingly popular in the food packaging sector. Packaging films prepared using cellulose as raw material would contribute to resource sustainability, but the difficulty of cellulose solubilization limits their further development. In view of this, a series of novel solvent systems (LiCl/DMAc, ILs, TBAH/DMSO, NMMO, alkali/urea solutions, metal-complex solutions) were used to prepare high-strength and high-performance cellulose-based films; their characteristics and the mechanisms involved were investigated. Composite films prepared by blending cellulose with various polymers (synthetic polymers, natural polymers, proteins More > Graphic Abstract

    Cellulose-Based Films for Food Packaging Applications: Review of Preparation, Properties, and Prospects

  • Open Access

    ARTICLE

    Influence of Spray Gun Position and Orientation on Liquid Film Development along a Cylindrical Surface

    Jiuxuan Liu, Yong Zeng*, Xueya Zhao, Hongbo Chen, Bin Yan, Qian Lu

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.10, pp. 2499-2518, 2023, DOI:10.32604/fdmp.2023.028413 - 25 June 2023

    Abstract

    A method combining computational fluid dynamics (CFD) and an analytical approach is proposed to develop a prediction model for the variable thickness of the spray-induced liquid film along the surface of a cylindrical workpiece. The numerical method relies on an Eulerian-Eulerian technique. Different cylinder diameters and positions and inclinations of the spray gun are considered and useful correlations for the thickness of the liquid film and its distribution are determined using various data fitting algorithms. Finally, the reliability of the proposed method is verified by means of experimental tests where the robot posture is changed. The

    More > Graphic Abstract

    Influence of Spray Gun Position and Orientation on Liquid Film Development along a Cylindrical Surface

  • Open Access

    ARTICLE

    Accurate Machine Learning Predictions of Sci-Fi Film Performance

    Amjed Al Fahoum1,*, Tahani A. Ghobon2

    Journal of New Media, Vol.5, No.1, pp. 1-22, 2023, DOI:10.32604/jnm.2023.037583 - 14 June 2023

    Abstract A groundbreaking method is introduced to leverage machine learning algorithms to revolutionize the prediction of success rates for science fiction films. In the captivating world of the film industry, extensive research and accurate forecasting are vital to anticipating a movie’s triumph prior to its debut. Our study aims to harness the power of available data to estimate a film’s early success rate. With the vast resources offered by the internet, we can access a plethora of movie-related information, including actors, directors, critic reviews, user reviews, ratings, writers, budgets, genres, Facebook likes, YouTube views for movie… More >

  • Open Access

    ARTICLE

    Preparation and Performance of Pueraria lobata Root Powder/Polylactic Acid Composite Films

    Shuang Zhao1, Shenglan Chen2, Shuan Ren1, Gang Li3, Ke Song1,4, Jie Guo1,4, Shima Liu1,4, Jian He1,4, Xianwu Zhou1,4,*

    Journal of Renewable Materials, Vol.11, No.6, pp. 2531-2553, 2023, DOI:10.32604/jrm.2023.026066 - 27 April 2023

    Abstract Petroleum-based materials, such as plastic, are characterized by adverse environmental pollution; as a result, researchers have sought alternative degradable plastics that are environmentally friendly, such as polylactic acid (PLA). PLA has shown great potential to replace petroleum-based plastics. In this study, seven different samples of unmodified Pueraria lobata root powder (PRP) with different contents (i.e., 0, 5, 10, 15, 20, 25, and 30 wt%) and three different modified PRPs (i.e., treated with NaOH, NaOH-KH-550, and Formic) were used to reinforce polylactic acid (PLA) via solution casting process. These prepared PRP/PLA composite films were characterized using SEM,… More > Graphic Abstract

    Preparation and Performance of <i>Pueraria lobata</i> Root Powder/Polylactic Acid Composite Films

  • Open Access

    ARTICLE

    Research on the Corrosion of J55 Steel Due to Oxygen-Reducing Air Flooding in Low-Permeability Reservoirs

    Liang Wang1, Baofeng Hou1, Yanming Fang3, Jintao Zhang2, Fajian Nie1,2,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.7, pp. 1925-1937, 2023, DOI:10.32604/fdmp.2023.025966 - 08 March 2023

    Abstract Oxygen-reducing air flooding is a low-permeability reservoir recovery technology with safety and low-cost advantages. However, in the process of air injection and drive, carbon in the air is oxidized through the crude oil reservoir to generate CO2, and this can cause serious corrosion in the recovery well. In this study, experiments on the corrosion of J55 tubular steel in a fluid environment with coexisting O2 and CO2 in an autoclave are presented. In particular, a weight loss method and a 3D morphometer were used to determine the average and the local corrosion rate. The corrosion surface morphology More >

  • Open Access

    ARTICLE

    A Novel Light Weight CNN Framework Integrated with Marine Predator Optimization for the Assessment of Tear Film-Lipid Layer Patterns

    Bejoy Abraham1, Jesna Mohan2, Linu Shine3, Sivakumar Ramachandran3,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.1, pp. 87-106, 2023, DOI:10.32604/cmes.2023.023384 - 05 January 2023

    Abstract Tear film, the outermost layer of the eye, is a complex and dynamic structure responsible for tear production. The tear film lipid layer is a vital component of the tear film that provides a smooth optical surface for the cornea and wetting the ocular surface. Dry eye syndrome (DES) is a symptomatic disease caused by reduced tear production, poor tear quality, or excessive evaporation. Its diagnosis is a difficult task due to its multifactorial etiology. Out of several clinical tests available, the evaluation of the interference patterns of the tear film lipid layer forms a More >

  • Open Access

    ARTICLE

    Preparation and Properties of Vegetable-Oil-Based Thioether Polyol and Ethyl Cellulose Supramolecular Composite Films

    Ruyu Yan1,2,3,4, Jian Fang1,*, Xiaohua Yang2,3,4,5,6, Na Yao2,3,4,5,6, Mei Li2,3,4,5,6, Yuan Nie2,3,4,5,6, Tianxiang Deng2,3,4,5,6, Haiyang Ding2,3,4,5,6, Lina Xu2,3,4,5,6, Shouhai Li2,3,4,5,6,*

    Journal of Renewable Materials, Vol.11, No.4, pp. 1937-1950, 2023, DOI:10.32604/jrm.2023.025126 - 01 December 2022

    Abstract Ethyl cellulose (EC), an important biomass-based material, has excellent film-forming properties. Nevertheless, the high interchain hydrogen bond interaction leads to a high glass transition temperature of EC, which makes it too brittle to be used widely. The hydroxyl group on EC can form a supramolecular system in the form of a non-covalent bond with an effective plasticizer. In this study, an important vegetable-oil-based derivative named dimer fatty acid was used to prepare a novel special plasticizer for EC. Dimer-fatty-acid-based thioether polyol (DATP) was synthesized and used to modify ethyl cellulose films. The supramolecular composite films… More > Graphic Abstract

    Preparation and Properties of Vegetable-Oil-Based Thioether Polyol and Ethyl Cellulose Supramolecular Composite Films

  • Open Access

    ARTICLE

    Development of a Novel Extrusion Process for Preparing Rice Straw/LLDPE Composites

    Huicheng Xu, Hao Xie, Weidong Shan, Weihong Wang*

    Journal of Renewable Materials, Vol.11, No.3, pp. 1123-1135, 2023, DOI:10.32604/jrm.2022.023959 - 31 October 2022

    Abstract Straw utilization is a key issue related to agricultural production and air pollution control. In this study, a novel extrusion process was proposed to improve the physical and mechanical properties of the straw-reinforced linear low-density polyethylene (LLDPE) composite. Instead of crushing the straw and mixing it with plastic matrix, the new method mixes straw with plastic matrix in its original form. The intact long rice straws were parallelly spread on the LLDPE film and then rolled up together into a prefabricated roll. The rolls experienced three extrusion processes as follows: (1) twin-screw melting, cooling and… More >

  • Open Access

    ARTICLE

    Comparative Study on Properties of PBAT/PBSA Film Modified by a Multi-Functional Epoxide Chain Extender or Benzoyl Peroxide

    Yanfeng Zhu1, Huidong Shi1, Qing Ju1, Dong Zhao1, Yucai Shen1,2,*, Tingwei Wang1,2,*

    Journal of Renewable Materials, Vol.11, No.3, pp. 1303-1319, 2023, DOI:10.32604/jrm.2022.023129 - 31 October 2022

    Abstract Poly(butylene adipate-co-terephthalate) (PBAT) and poly(butylene succinate-co-adipate) (PBSA) blend films were prepared with different contents of a multifunctional epoxide chain extender Joncryl ADR-4468 (ADR) or benzoyl peroxide (BPO). The long-chain-branching (LCB) introduced by ADR and branched/crosslinked entanglement induced by BPO increased melt elasticity, viscosity and compatibility, as indicated by thermal properties, rheological and morphological analyses. It was found that the elongation at break and the tensile strength were significantly improved, due to the enhancement of compatibility and the interfacial adhesion by the incorporation of ADR or BPO. The best mechanical properties were obtained in PBAT/PBSA/ADR (60/40/0.3) (A4T6A0.3) More > Graphic Abstract

    Comparative Study on Properties of PBAT/PBSA Film Modified by a Multi-Functional Epoxide Chain Extender or Benzoyl Peroxide

  • Open Access

    ARTICLE

    Towards Solar-Driven Formation of Robust and Self-Healable Waterborne Polyurethane Containing Disulfide Bonds via in-situ Incorporation of 2D Titanium Carbide MXene

    Sai Gong1,2,#, Shanglin Xiang1,#, Tingwei Wang1,*, Dongyu Cai2,*

    Journal of Renewable Materials, Vol.11, No.3, pp. 1063-1076, 2023, DOI:10.32604/jrm.2022.023011 - 31 October 2022

    Abstract Waterborne polymers are vital for coating industry to reduce carbon emissions. However, formation of robust and self-healable films at ambient temperature remains a challenge owing to high energy cost of film formation process. This work reports a solar-driven film formation of waterborne polyurethanes (WPUs) containing disulfide bonds via in-situ incorporation of 2D titanium carbide (MXene) with ability to convert light to heat. Instead of directly mixed with WPUs, MXene is added to join the reaction with isocyanate-terminated pre-polymer before emulsification process. This approach not only prevents aggregation of MXene in water but stabilizes MXene against thermal More > Graphic Abstract

    Towards Solar-Driven Formation of Robust and Self-Healable Waterborne Polyurethane Containing Disulfide Bonds via <i>in-situ</i> Incorporation of 2D Titanium Carbide MXene

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