Article
Chemistry, Applied
Jing Zhang, Yi-min Wu, Hong-li Zhang, Ting-hui Yan, Yu-zhong Huang, Jia-xing Jiang, Ji-Jun Tang
Summary: In this study, a novel castor oil-glycerol-based waterborne polyurethane was successfully synthesized, with the addition of glycerol achieving higher bio-content and significantly enhancing the mechanical properties and thermal stability of the material.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Food Science & Technology
Yuye Zhong, Tao Zhang, Wenshuo Zhang, Guannan Wang, Zhenhong Zhang, Pingping Zhao, Xinghai Liu, Houbin Li
Summary: To overcome the limitations of pure gelatin film, researchers successfully grafted quaternary ammonium groups onto a novel castor oil-based waterborne polyurethane to create composite films. The mechanical properties, thermal stability, water permeability, and oxygen permeability of these films improved significantly with the increase in waterborne polyurethane concentration. The composite films also demonstrated strong antibacterial properties against Escherichia coli and Staphylococcus aureus, and extended the shelf life of strawberries to more than 6 days. Therefore, this new composite material has the potential to serve as an alternative food packaging material.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Engineering, Environmental
Rulin Shen, Mingjun Long, Chendong Lei, Liming Dong, Guipeng Yu, Juntao Tang
Summary: In this study, the mechanical properties of vegetable oil-based waterborne polyurethane (WPUs) were improved by incorporating sustainable diols. The resulting films demonstrated higher tensile strength and toughness compared to state-of-the-art systems. Among the different diols investigated, WPU-B films exhibited superior performance and increased corrosion resistance. This research provides strategies for controlling the physical properties of environmentally friendly WPUs and developing high-performance coatings for anticorrosion applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Sariah Saalah, Luqman Chuah Abdullah, Min Min Aung, Mek Zah Salleh, Dayang Radiah Awang Biak, Mahiran Basri, Emiliana Rose Jusoh, Suhaini Mamat, Syeed SaifulAzry Osman Al Edrus
Summary: This study prepared a waterborne polyurethane dispersion using jatropha oil, achieving successful production of free standing films with high bio-based content. Adjusting the OH number of the polyol significantly increased the crosslinking density of the material, leading to improved storage modulus and hydrophobicity.
Article
Engineering, Manufacturing
Shenghe Zhang, Fukai Chu, Yifan Zhou, Zhoumei Xu, Xin Jiang, Xiaoyu Luo, Guojie Yuan, Yuan Hu, Weizhao Hu
Summary: In this paper, flexible polyurethane (PU) was successfully prepared by introducing diphenylphosphinyl chloride and 3-aminopropyltriethoxysilane (KH550) into castor oil. The modified PU showed excellent flame-retardant and smoke-suppressing effects, and it was able to rapidly absorb organic solvents. The modified foam also met certain mechanical properties. This work broadens the thinking for the preparation of high-performance flexible PU materials with green intrinsic fire-retardancy.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Chemistry, Physical
Xiufen Liu, Fengyuan Sun, Yifan Liu, Baojian Yao, Haishan Liang, Minghao Mu, Xinqiang Liu, Haisong Bi, Zheng Wang, Chengduo Qian, Xue Li
Summary: Polyurethane prepolymers containing branched chains were successfully synthesized and further modified with epoxy resin, resulting in improved mechanical properties, water resistance, and heat resistance. The prepared epoxy resin-modified WPU emulsions showed excellent centrifugal stability and exhibited good performance at a specific addition amount.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Applied
Henghui Deng, Qian Chen, Fei Xie, Caimei Zhao, Jun Pan, Qiaoyun Cheng, Chaoqun Zhang
Summary: In this study, tunicate cellulose nanocrystals (TCNCs) were added to castor oil-based waterborne polyurethane (WPU) to prepare bio-based nanocomposites through solution blending. The effect of TCNCs content on the dispersion size and stability, as well as the properties of the composite films, was investigated. The unique properties of TCNCs, such as high crystallinity, aspect ratio, and modulus, improved the stability of WPU and showed reinforcing/toughening effects and compatibility. Flexible strain sensors were fabricated by coating silver nanowires (AgNWs) on the composite films, exhibiting excellent sensitivity in monitoring human movement.
CARBOHYDRATE POLYMERS
(2023)
Article
Agricultural Engineering
Yanhu Zhan, Fang Liu, Yifan Cai, Limin Man, Yuchao Li, Yanyan Meng, Hesheng Xia, Zhenming Chen
Summary: Many ecofriendly and antibacterial polymer-based shielding nanocomposites have been designed to address the serious issues of electromagnetic interference pollution and antibiotic resistance. These composites have a high amount of conductive and antibacterial material and exhibit unparalleled EMI shielding performance and strong antibacterial properties. However, their preparation is extremely challenging due to the formation of large aggregates and high viscosity.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Environmental
Zhanhong Zheng, Dunsheng Liang, Henghui Deng, Fei Xie, Xiaoming Chen, Ying Luo, Chaoqun Zhang
Summary: In this study, a simple and environmentally friendly electrostatic self-assembly strategy has been used to prepare castor oil-based waterborne polyurethane/polyhexamethylene guanidine composites. The resulting composite films exhibited durable antibacterial properties and high mechanical strength. The technique reported in this study provides a facile and effective method for the development of bio-based polymer composites with high mechanical properties and durable antibacterial properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Dong-Mei Xie, De-Xin Lu, Xiao-Li Zhao, Yi-Dong Li, Jian-Bing Zeng
Summary: Malleable polyurethane networks were prepared from CSO and VSB, with VSB serving as both a structure modifier to regulate mechanical properties and a provider of dynamic imine bonds for malleability, thermal processability, and recyclability.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Applied
Bin Lyu, Henian Zhang, Dangge Gao, Jianzhong Ma
Summary: In this study, polyols based on inedible sapium sebiferum oil were prepared and used to prepare modified castor oil-based waterborne polyurethane. The modified films showed good anti-graffiti and thermal properties, as well as improved tensile strength and elongation at break.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Forestry
Danilo Soares Galdino, Maria Fernanda Felippe Silva, Felipe Nascimento Arroyo, Elidiane Cipriano Rangel, Jose Claudio Caraschi, Herisson Ferreira dos Santos, Ludmila de Freitas, Andre Luis Christoforo, Cristiane Inacio de Campos
Summary: Wood industries use thermal and thermomechanical treatments to enhance the durability of wood products. This study compared physical and mechanical properties of plywood treated at different temperatures and found that temperature significantly influences plywood properties and the choice of equipment for treatment.
Article
Chemistry, Multidisciplinary
Chaoqun Zhang, Haiyan Liang, Dunsheng Liang, Zirun Lin, Qian Chen, Pengju Feng, Qingwen Wang
Summary: The newly developed multifunctional castor-oil-based waterborne polyurethane has high tensile strength and excellent self-healing efficiency, with the ability to fully recover its original mechanical properties after multiple reprocessings. The material exhibits a wide range of glass-transition temperatures, providing the films with versatile shape-memory effects.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Polymer Science
Mengqing Shi, Jin Yang, Xiwen Wang
Summary: This study synthesized a series of bio-based waterborne polyurethanes with high bio-based content, excellent performance, and degradability by adjusting the castor oil content. Experimental results showed that the mechanical properties changed with the increase of castor oil content.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Polymer Science
Xinxiang Li, Tengchao Zeng, Yunjie Yin, Chaoxia Wang
Summary: This study successfully synthesized castor oil-based colored PUs with excellent stability and color properties on cotton fabrics, achieving color fastness through hydrogen bonding and polymer network structure formation. The insertion of dye molecules and vegetable oils into the PU macromolecular chain provided a way to impart exceptional color characteristics and fastness to PU coatings.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Agricultural Engineering
Jingmo Zhou, Shubin Wu, Ying Liu
Summary: Expenditure isolation of lignin and the understanding of its structural variations during different isolation processes are crucial for the high-value utilization of lignin. This study proposed a green deep eutectic solvent (DES) consisting of choline chloride, ethylene glycol, and 4-chlorobenzene sulfonic acid for rapid lignin separation from poplar. The structural variations of DES lignin and its relationship with alkali pre-extraction of hemicellulose were investigated. The results showed that alkali pretreatment enhanced the DES separation of lignin and promoted the cleavage of specific linkages, resulting in reduced molecular weight and thermal stability of isolated DES lignin. Moreover, DES lignin obtained from integrated utilization displayed higher purity and S/G ratio compared to lignin obtained from direct DES treatment.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Yuping Li, Ziyan Xie, Yun Huang, Jiangyi Zeng, Chao Yang, Ling Yuan, Ying Wang, Yongqing Li
Summary: In this study, the characteristic flavonoids (CFs) of three licorice species were identified through integrated metabolic and transcriptomic analysis. The key regulators of CF biosynthesis were also identified. These findings provide valuable information for understanding the biosynthesis of CFs and future breeding of Glycyrrhiza varieties.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Xianjie Pan, Zhaoyi Luo, Fanqi Liu, Quanqian Yi, Yanning Zeng
Summary: This study presents a novel strategy for fabricating fully bio-based epoxy vitrimers using peach gum and itaconic acid, which exhibit superior mechanical properties and thermostability. The materials were characterized and the self-healing and recycling capabilities were evaluated. The results demonstrate the potential of using these materials for sustainable industrial applications.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Mohsen Sabzi-Nojadeh, Mohammad Pouresmaeil, Mina Amani, Mehdi Younessi-Hamzekhanlu, Filippo Maggi
Summary: This study shows that inoculating Summer savory plants with endophytic fungus Trichoderma harzianum can improve plant growth and increase salt tolerance. The fungus enhances growth, restores chlorophyll and antioxidant levels, reduces harmful substances, and increases proline and soluble sugar levels, thereby increasing crop productivity in saline conditions.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Yu Liu, Lei Li, Aichen Zhao, Xiuming Song, Lulu Wei, Mengdi Fang, Chuchu Zheng, Xiaodong Zhu
Summary: This study investigates the impact of peppermint essential oil microcapsules on the unpleasant odor emissions from wax oil coated wood products. The results show that microcapsules can improve the time and stability of odor release.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Mesut Budak, Mirac Kilic, Hikmet Guenal, Ismail Velik, Mesut Sirri
Summary: This study assessed land suitability for rapeseed production using topography, climate, and soil data by analytical hierarchy process (AHP) and the Mamdani Fuzzy Inference System (MFIS). The study area covered land in the Diyarbakir province of southeastern Turkiye. The results indicated the proportions of different land suitability classes and showed the compatibility of AHP and MFIS methods in assessing suitability.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Rui Tian, Yue Liu, Chao Wang, Weikun Jiang, Srinivas Janaswamy, Guihua Yang, Xingxiang Ji, Gaojin Lyu
Summary: In this study, hollow and solid lignin nanoparticles were synthesized through self-assembly and their application in PVA nanocomposite films was investigated. The results showed that the presence of hollow lignin nanoparticles in the films resulted in a room-like network structure, while the solid lignin nanoparticles induced different structural changes. The inclusion of LNPs improved the mechanical properties of the films, and both types of LNPs exhibited good hydrophobicity.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Marcos Vinicius Silva de Andrade, Simone Ribeiro Lucho, Renato Delmondez de Castro, Paulo Roberto Ribeiro
Summary: Stevia rebaudiana Bertoni, commonly known as stevia, is a widely cultivated shrub with highly sweetening metabolites. It has gained significant interest in the food and beverage industries due to its extremely sweet taste and various health benefits. Researchers are currently focused on studying biotechnological strategies to enhance the biosynthesis of stevia plant metabolites for improved cultivation and production.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Eleonora Cintura, Paulina Faria, Luisa Molari, Luca Barbaresi, Dario D'Orazio, Lina Nunes
Summary: This study investigated the properties of Arundo donax as a building material and found that it has strong adaptability, high hygroscopicity, and unique sound absorption behavior. The mechanical tests also demonstrated the applicability of the Arundo donax-based composite. This opens up new possibilities for the further application of Arundo donax-based materials.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Stiina Kotiranta, Juha-Matti Pihlava, Titta Kotilainen, Pauliina Palonen
Summary: The effect of light spectra, particularly far-red and short wavelength radiation, on the growth and secondary metabolites of cannabis is significant. Altering the R:FR ratio can increase the concentration and yield of secondary metabolites, while short wavelength radiation does not significantly affect plant morphology and secondary metabolite concentrations.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Xuze Liu, Fangmin Liang, Jinyuan Cheng, Xuelian Zhou, Jia Wang, Guigan Fang, Kuizhong Shen, Xianzhi Meng, Chen Huang, Arthur J. Ragauskas
Summary: A novel Na2S-facilitated DES pretreatment method was proposed to fractionate moso bamboo, which achieved high lignin removal and preserved most cellulose and hemicellulose with excellent enzymatic digestibility.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Zechun Ren, Xinyuan Zhou, Kejiao Ding, Tong Ji, Hao Sun, Xiang Chi, Yunzhao Wei, Min Xu
Summary: This study prepared a thermal/magnetic/light-triggered multi-stimuli responsive shape memory polymer composite with excellent properties by adding magnetic nanoparticles into a polyurethane composite. The composite showed high shape recovery rate, fast response behavior, and suitability for 3D printing. Controllable external stimuli allowed for dynamic, remote, and precise control of 4D transformations. This work is significant for the design of smart materials and devices.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Yurany Camacho Ardila, Jaiver Efren Jaimes Figueroa, Maria Regina Wolf Maciel
Summary: The higher heating value (HHV) and elemental composition are important properties of biomass, and their prediction using proximate and ultimate analysis is accurate.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Xiaohan Chen, Xianke Wang, Lili Shang, Xinxin Ma, Changhua Fang, Benhua Fei, Huanrong Liu, Shuqin Zhang
Summary: This study focuses on the comprehensive characterization of the three-dimensional (3D) structure of bamboo parenchyma and the evaluation of its tensile and compressive properties, as well as the analysis of its failure mechanisms. The study found that the measured tensile strength and elastic modulus of the parenchyma tissue are 48.81 MPa and 706.48 MPa, respectively. Compression failure modes in parenchyma tissue encompass compression bending and cell fracture, shear failure of the middle lamella, and detachment and debonding of the cell wall.
INDUSTRIAL CROPS AND PRODUCTS
(2024)
Article
Agricultural Engineering
Tianfeng Liu, Yuxin Liu, Yunlin Fu, Mengji Qiao, Penglian Wei, Zhigao Liu, Yingjian Li
Summary: This study explored the formation mechanism of agarwood induced by fungus and its potential application in high-quality and high-yielding agarwood production. The results showed that the transition layer played a critical role in the continuous accumulation of agarwood, and the parenchyma cells of the xylem rays and interxylary phloem were the main action site of fungus. The accumulation and distribution of chemical composition in different layers were also investigated. The study identified the drivers of specific compounds and provided a theoretical foundation for future agarwood production.
INDUSTRIAL CROPS AND PRODUCTS
(2024)