Article
Polymer Science
Seong Baek Yang, Mohammad Rezaul Karim, Jungeon Lee, Jeong Hyun Yeum, Sabina Yeasmin
Summary: Novel poly(vinyl alcohol)/poly(vinyl butyral-vinyl alcohol) films with improved hydrophobicity were prepared by saponification of poly(vinyl acetate)/poly(vinyl butyral) blend films. The saponification process was confirmed by various analysis techniques. The hydrophobicity of the films increased with increasing poly(vinyl butyral) content. The saponified films exhibited improved mechanical properties and unique surface characteristics. These films have potential applications in biomaterials, filters, and medical devices.
Article
Materials Science, Multidisciplinary
Giada Belletti, Giulia Ronconi, Valentina Mazzanti, Elena Buratti, Lorenzo Marchi, Giovanna Sotgiu, Matteo Calosi, Francesco Mollica, Monica Bertoldo
Summary: This study reports the preparation and characterization of poly(vinyl alcohol) (PVA)/poly(lactic acid) (PLA) blends of different compositions. Films of PLA and its blends with PVA were obtained by drying water dispersions. The morphology of the films showed a PVA-rich continuous phase, except for the 25/75 composition where an inverted phase composition was observed. Trapped air bubbles caused voids in the films and affected their thermal degradation and mechanical properties. Films with a neutral stabilizer showed improved toughness compared to commercial PLA, with properties depending on the composition and arrangement of blend phases.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Polymer Science
Dilshad Qureshi, Ayasharani Sahoo, Biswaranjan Mohanty, Arfat Anis, Viktoryia Kulikouskaya, Kseniya Hileuskaya, Vladimir Agabekov, Preetam Sarkar, Sirsendu Sekhar Ray, Samarendra Maji, Kunal Pal
Summary: This study developed novel blend films based on PVA and COS, with varying COS concentration impacting properties such as color, crystallinity, mechanical stability, and antimicrobial activity of the films.
Article
Biochemistry & Molecular Biology
Fuqi Wu, Zeguang Zhou, Nannan Li, Yang Chen, Lei Zhong, Wing Cheung Law, Chak Yin Tang
Summary: In this study, PVA/starch/LAE films with enhanced properties were prepared. The inclusion of LAE affected the structural integrity, without significantly impacting the intermolecular interactions and crystal structures of the polymer matrix. With increasing LAE content, tensile strength slightly decreased while elongation at break significantly increased, demonstrating potential for active packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Ruizhe Lian, Jinxing Cao, Xiaohong Jiang, Aleksandr V. Rogachev
Summary: The CS/Gel/PVA/CIP composite films show a dual-stage release pattern for ciprofloxacin hydrochloride, achieving rapid sterilization and long-term antibacterial effect.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Food Science & Technology
Hye-Jo Choi, Sung-Wook Choi, Nari Lee, Hyun-Joo Chang
Summary: The study successfully inhibited the growth of S. aureus by incorporating DIE into CTS/GEL/PVA composite films and applying the coating to strawberries, demonstrating a potential new approach for preventing foodborne pathogen contamination in the field of food packaging.
Article
Food Science & Technology
Guelce Bedis Kaynarca, Deniz Damla Altan Kamer, Tuncay Gumus, Osman Sagdic
Summary: This study examined the effect of grape pomace extract (GP) on PVA/FG blend films. The addition of different ratios of GP to the films improved their rheological properties and resulted in structural repositioning. GP enhanced intermolecular polymer interactions and surface smoothness. The addition of GP increased melting temperature, improved flexibility, and enhanced water solubility parameter and antioxidant activity of the films. A GP-enriched PVA/FG film can be used for food packaging purposes.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Chemistry, Applied
Pradeep Kumar Panda, Kitae Park, Jongchul Seo
Summary: Poly (vinyl alcohol) (PVA)/regenerated chitosan (RCs) blend films (PRCs) were developed using a solution casting method. The PRCs films exhibited superior physicochemical and functional properties compared to PVA/Cs (PCs) films. The barrier, antioxidant, and antibacterial properties were dependent on the amount of RCs. The PRCs films also showed strong free radical scavenging activity and enhanced antibacterial efficacy against Escherichia coli.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Multidisciplinary
Yajun Ren, Xiaofeng Song, Youhua Chen, Wen Xin, Chuanming Zhu, Yuan Huang, Na Tian, Yuling Huang
Summary: Self-healable polymers are promising intelligent materials that can repair physical damage autonomously, extending their lifetime and reducing maintenance costs. In this study, a series of polymers with switching phase and healing accelerator properties were synthesized and blended with poly(vinyl alcohol). The resulting blend demonstrated good self-healing behavior and hydrothermal-response shape memory effect.
Article
Engineering, Chemical
Sania Kadanyo, Nozipho N. Gumbi, Christine N. Matindi, Derrick S. Dlamini, Yunxia Hu, Zhenyu Cui, Hong Wang, Mengyang Hu, Jianxin Li
Summary: In this study, hydrophilic poly (ethylene-co-vinyl alcohol) (EVOH) and hydrophobic polysulfone (PSF) were blended together using polyethylene glycol (PEG) as a hydrophilic additive and compatibilizer, which resulted in ultrafiltration (UF) membranes with high porosity and antifouling properties. The optimal PEG content for blending with PSF/EVOH was found to be 20 wt%. The blended membranes exhibited improved miscibility, pure water permeance, and antifouling properties, making them suitable for wastewater treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yingxu Song, Sumei Zhang, Jian Kang, Jinyao Chen, Ya Cao
Summary: Annealing PVA films at different temperatures affects the water absorption, leading to changes in the formation of PVA-iodine complexes. The amount of PVA segments with moderate hydration has a significant impact on the complexation process.
Article
Polymer Science
Madhusmita Rawooth, S. K. Habibullah, Dilshad Qureshi, Deepti Bharti, Ankit Pal, Biswaranjan Mohanty, Maciej Jarzebski, Wojciech Smulek, Kunal Pal
Summary: This study evaluated the effect of tamarind gum on the properties of polyvinyl alcohol-based films, finding that the addition of TG enhanced phase separation and aggregation of PVA in the films. The interconnected network of PVA-TG aggregates affected the swelling, drying, and drug release potential of the films.
Article
Chemistry, Applied
Yuanyuan Liu, Yifan Zhang, Meiyang Zhen, Yuangen Wu, Meihu Ma, Yuxin Cheng, Yongguo Jin
Summary: This study investigated the effects of polyphenols on the structural and functional properties of food packaging film. The results showed that the addition of polyphenols improved the mechanical properties, water resistance, water vapor barrier performance, and antioxidant activity of the blend film. In particular, the film modified by 2% tannins exhibited the highest tensile strength and elongation at break.
FOOD HYDROCOLLOIDS
(2023)
Article
Agricultural Engineering
Meng Cheng, Ruiqi Kong, Rongfei Zhang, Xiangyou Wang, Juan Wang, Menglin Chen
Summary: The CS/PVA/CNE active films were developed through glyoxal cross-linking reaction, improving water resistance and mechanical properties while decreasing gas permeability and opacity. The addition of glyoxal increased cross-linking between polymeric components, resulting in a denser macropolymeric network and enhanced compatibility of CS and PVA blends. The films showed enhanced smoothness and rigid fracture in their structure, contributing to long-term antioxidant and antimicrobial activities.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Polymer Science
Bedriye Ucpinar Durmaz, Ayse Aytac
Summary: The study demonstrated that crosslinking PVA/SC films with additives significantly improved water vapor barrier properties and tensile strength, while also enhancing flexibility and thermal stability, making the films suitable for packaging applications.
JOURNAL OF POLYMER ENGINEERING
(2021)
Article
Polymer Science
Yanchun Liu, Shujie Liu, Jie Liu, Xuejing Zheng, Keyong Tang
Summary: This study investigates the effect of gelatin type on the structure and properties of glycerol plasticized gelatin films reinforced by microfibrillated cellulose (MFC). Results indicate that the tensile strength of type-A and type-B gelatin (GelA and GelB) films increases significantly at an optimum MFC content. The incorporation of MFC also has a more pronounced impact on optical properties and moisture absorption capability of GelB films.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Pengfei Yan, Mengya Li, Jie Liu, Yadi Hu, Keyong Tang
Summary: This study prepared a hydrogel with both excellent mechanical properties and antibacterial activity by incorporating molybdenum disulfide nanoparticles and polyvinyl alcohol molecular chains. The hydrogel showed rapid bacterial killing under near-infrared light irradiation due to the synergistic effect of reactive oxygen species and hyperthermia. In vitro experiments demonstrated the non-toxicity of the hydrogel to cells and its potential in promoting wound healing compared to pure polyvinyl alcohol hydrogel.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
Yingnan Yue, Jinxu Liu, Shengyuan Gao, Ying Pei, Yongchao Jiang, Keyong Tang, Jun Zhang, Jie Liu, Xuejing Zheng
Summary: In this study, ChNs and DAMFC fibrils were used to enhance the mechanical strength of gelatin hydrogels, which also exhibited good self-healing and conductivity properties. The mechanical properties of the hydrogels were further improved by immersing in NaCl solution.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Analytical
Yadi Hu, Jie Liu, Xiumin Li, Fang Wang, Lan Luo, Ying Pei, Yong Lei, Keyong Tang
Summary: This study investigates the pyrolysis kinetics and mechanism of leathers tanned with mimosa extract and tannic acid, revealing differences in pyrolysis products and mechanisms attributed to different tanning agents. The research provides theoretical basis and evidence for converting solid leather wastes into value-added products.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Polymer Science
Aofei Li, Jie Liu, Ziwei Qin, Lu Wang, Lu Li, Keyong Tang, Ying Pei
Summary: In this study, a collagen-based adsorption material was synthesized for efficient removal of cationic dye. The material exhibited excellent adsorption capacity and stability, and could be reused multiple times.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Environmental
Zonghui Zhang, Yadi Hu, Fang Wang, Xuejing Zheng, Jie Liu, Keyong Tang
Summary: The management and safe disposal of chrome-tanned leather wastes is crucial due to potential health risks and environmental hazards. This study proposes an integrated strategy for disposing of these wastes, involving the separation of chromium salts for recycling and pyrolysis of the acid-treated waste. The results provide useful information on the composition, morphology, and kinetics of the waste, offering an alternative route for recycling and disposing of chrome-containing leather wastes.
Review
Mycology
Mingrui Zhang, Yadi Hu, Jie Liu, Ying Pei, Keyong Tang, Yong Lei
Summary: Natural collagen-based cultural relics such as parchment and leather are susceptible to deterioration in their main components and physical properties due to the storage environment and biodeterioration. The common microbial communities on these artifacts and the biodeterioration mechanism are discussed.
FUNGAL BIOLOGY REVIEWS
(2022)
Article
Food Science & Technology
Jie Liu, Zhengxin Ma, Yanchun Liu, Xuejing Zheng, Ying Pei, Keyong Tang
Summary: A study was conducted to fabricate antibacterial soluble soybean polysaccharide (SSPS)-based nanocomposite films containing silver nanoparticles (AgNPs) for food packaging applications. The presence of AgNPs improved the thermal stability and UV light barrier property of the SSPS films, showing excellent inhibition activity against different types of bacteria and extending the shelf life of green grapes in heat-sealed packaging pouches.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Engineering, Environmental
Zhengxin Ma, Zeyuan Xing, Yao Zhao, Hongbo Zhang, Qiangwei Xin, Jie Liu, Meng Qin, Chunmei Ding, Jianshu Li
Summary: There is a high demand for multifunctional and sustainable packaging materials as alternatives to petroleum-based polymers. Soybean polysaccharides (SPS) show great potential as sustainable packaging materials due to their remarkable antioxidation and film-formation properties. However, their poor water resistance and mechanical properties have limited their further application. In this study, we developed an asymmetric multifunctional packaging film inspired by the Janus properties of lotus leaf. By incorporating SPS-stabilized silver nanoparticles with gelatin and wax, we were able to enhance the mechanical properties and water tolerance of the film, while also creating hierarchical micro-/ nano-structures on one side of the film resembling the natural front lotus leaf. This Janus film demonstrated outstanding water resistance, as well as excellent antibacterial activity, antioxidation properties, and UV-blocking performance. It has been successfully applied in food packaging, showing its potential as a sustainable high-performance solution.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Polymer Science
Jiankang Chen, Jie Liu, Wen Yang, Ying Pei
Summary: A catalyst determines the mechanism of organic chemical reactions and biopolymers provide new opportunities for catalyst construction due to their biocompatibility, environmental friendliness, sustainability, and low cost. The use of collagen and silk fibroin materials for catalyst construction will revolutionize electronic devices and systems. This review summarizes the structure, origin, and processing methods of collagen and silk fibroin, as well as their advantages and applicability in catalyst construction. It also discusses the state-of-the-art design, fabrication, and application of collagen- and silk-based catalysts as carriers and precursors, and evaluates the challenges and prospects in their development.
Article
Food Science & Technology
Yitong Dong, Zhilu Rao, Yanchun Liu, Xuejing Zheng, Keyong Tang, Jie Liu
Summary: An edible film based on soluble soybean polysaccharide (SSPS) and gelatin incorporating curcumin was developed as active packaging material for soybean oil. Curcumin improved the structural and physical properties of the SSPS/gelatin films, and showed antimicrobial and antioxidant activities. The film dissolved quickly in hot water and effectively delayed the oxidation of soybean oil.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Food Science & Technology
Yitong Dong, Yajing Li, Zhengxin Ma, Zhilu Rao, Xuejing Zheng, Keyong Tang, Jie Liu
Summary: Similar to other water-soluble polymer films, pure soluble soybean polysaccharide (SSPS) films are rigid and brittle, limiting their practical applications in food packaging. This study investigated the effects of three commonly used polyol plasticizers on the properties of SSPS films. The addition of plasticizers significantly improved the ductility and water content of the films. PEG400-plasticized SSPS films showed the highest transparency and thermal stability, while sorbitol-plasticized films had better tensile strength and water vapor barrier properties. Glycerol-plasticized films had the highest elongation at break, moisture content, and water solubility.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Chemistry, Applied
Jie Liu, Yitong Dong, Xuejing Zheng, Ying Pei, Keyong Tang
Summary: In this study, citric acid was used as a non-toxic crosslinking agent to improve the properties of glycerol-plasticized SSPS films. The CA-crosslinked SSPS films showed enhanced water resistance, mechanical strength, UV-barrier properties, water vapor barrier properties, antioxidant properties, and thermal properties. Additionally, the CA-crosslinked SSPS films exhibited superior antibacterial properties and delayed oxidative deterioration in food packaging application tests.
Article
Engineering, Environmental
Hui Liu, Xiumin Li, Keyong Tang, Shufa Qin, Jie Liu
Summary: By using alkaline protease to remove hair and open collagen fiber-bundles after pre-swelling bovine hides with alkali, a green and high-efficiency ecological processing technology for preparing pure collagen fiber woven materials was designed. The cross-linked pure collagen material produced from this process has better fiber fullness, fleeciness, and grain surface smoothness compared to conventional methods. The pollutants load of wastewater from this process is significantly lower as well.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Haolin Zhu, Hui Liu, Keyong Tang, Jie Liu, Xuejing Zheng, Ying Pei, Jide Zhong
Summary: This study explored the use of soluble soybean polysaccharide dialdehyde (DPA) as a green tanning agent for leather. By optimizing the preparation conditions using the response surface methodology, DPA tanned leather with good mechanical properties and collagen fiber dispersion was obtained.
