Green Materials最新文献_第6页

A new bio-based zwitterionic surfactant with strong interfacial activity at high temperature for enhanced oil recovery 一种新型高温界面活性强的生物基两性离子表面活性剂

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-02-10 DOI: 10.1680/jgrma.22.00070

Wen Wang, Mingde Liang, Jianrong Lang, H. I. Mtui, Shi‐Zhong Yang, Bozhong Mu

引用次数: 1

Hydrothermally synthesized Mo/Zr-MOF photocatalyst for promoting the removal of Cr6+ under visible light 水热合成Mo/Zr-MOF光催化剂促进可见光下Cr6+的去除

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-01-19 DOI: 10.1680/jgrma.22.00074

Wenyu Ren, Yi Wang, Jin Wang, Ruixue Sun

引用次数: 0

Adsorption of the malachite green dye of macadamia husk-activated carbon prepared using a household pyrolysis kiln 家用热解窑制备的夏威夷果壳活性炭对孔雀石绿染料的吸附性能

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-01-19 DOI: 10.1680/jgrma.22.00096

S. Wattanasiriwech, M. Naradisorn, D. Wattanasiriwech

引用次数: 3

Performance enhancement of coir fiber-reinforced elastomeric polyurethane eco-composites via the enrichment of fiber surface using sustainable modifications 用可持续改性富集纤维表面提高椰壳纤维增强弹性聚氨酯生态复合材料的性能

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-01-19 DOI: 10.1680/jgrma.22.00103

Ümit Tayfun, A. Akar, F. Hacıoğlu, M. Doğan

{"title":"Performance enhancement of coir fiber-reinforced elastomeric polyurethane eco-composites via the enrichment of fiber surface using sustainable modifications","authors":"Ümit Tayfun, A. Akar, F. Hacıoğlu, M. Doğan","doi":"10.1680/jgrma.22.00103","DOIUrl":"https://doi.org/10.1680/jgrma.22.00103","url":null,"abstract":"Tuning the chemical functionality of lignocellulosic fiber plays a key role in the development of mechanically strong composites to overcome the leakage of compatibility between composite phases which is a major challenge in multidimensional applications of eco-composites. Herein, the coconut fiber (CF) surface was enriched via four kinds of modification routes including mercerization, amino-functional silane treatment, bio-based epoxy resin sizing, and isocyanate treatment to enhance its interfacial adhesion to thermoplastic polyurethane (TPU) matrix. Tensile strength and Shore-hardness parameters of composites were improved by surface-modified CF inclusions. Thermo-mechanical response of TPU was optimized after CF loadings regardless of treatment type. Composite involving silane-modified CF exhibited the lowest water uptake due to the hydrophobic behavior of the silane layer. The increase in interfacial interaction between the TPU matrix and modified CF was confirmed by SEM investigations. The chemically enriched surface of CF confers the performance of composites thanks to improved adhesion in the TPU-CF interface.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42847123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New α-NaFeO2 synthesis route for green sodium-ion batteries 用于绿色钠离子电池的新型α-NaFeO2合成路线

IF 1.9 4区材料科学

Green Materials Pub Date : 2023-01-17 DOI: 10.1680/jgrma.21.00050

M. G. D. Guaita, Otávio José de Oliveira, Paulo Rogério Catarini da Silva, L. H. Dall’Antonia, A. Urbano

{"title":"New α-NaFeO2 synthesis route for green sodium-ion batteries","authors":"M. G. D. Guaita, Otávio José de Oliveira, Paulo Rogério Catarini da Silva, L. H. Dall’Antonia, A. Urbano","doi":"10.1680/jgrma.21.00050","DOIUrl":"https://doi.org/10.1680/jgrma.21.00050","url":null,"abstract":"New technologies have been investigated to replace the use of lithium and cobalt ions, raw materials of the cathode active material of lithium-ion batteries. Among the emerging technologies stands out one that uses sodium (Na+) and iron ions. Sodium iron oxide (NaFeO2) has polymorphism, with only the α phase being active for the reversible deintercalation of sodium ions, so this phase has potential application as an electroactive material in green sodium-ion batteries. The novel synthesis of α-sodium iron oxide through the sol–gel route, which provides a material with small particles and high crystallinity, is described in this work. Through X-ray diffraction and Rietveld refinement, it was found that the initial chelating agent/metals ratio affects the concentration of the α and β phases at the end of the synthetic route. The α-sodium iron oxide, obtained with an appropriate chelating agent/metals ratio, showed high purity and crystallinity. A discharge capacity of approximately 110 mAh/g was achieved when the α-sodium iron oxide electrode, obtained through the sol–gel route, was cycled from 1.00 to 4.00 V against sodium ions/sodium (Na), corresponding to the intercalation of approximately 0.5 sodium ions of the Na1−x FeO2 formula. The success of the synthesis of the α-sodium iron oxide phase can lower the cost and ensure the economic viability of green sodium-ion batteries.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42916708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of extrusion plastometry in poly(3-hydroxybutyrate) (PHB) processing and the effect of ground wool fiber on the mechanical properties of PHB/wool blends 挤出塑化法在聚3-羟基丁酸酯(PHB)加工中的应用及磨羊毛纤维对PHB/羊毛共混物力学性能的影响

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-12-15 DOI: 10.1680/jgrma.22.00026

Hailemichael O. Yosief, Cheng‐Kung Liu, R. Ashby, G. Strahan, N. Latona, Nusheng Chen

{"title":"Application of extrusion plastometry in poly(3-hydroxybutyrate) (PHB) processing and the effect of ground wool fiber on the mechanical properties of PHB/wool blends","authors":"Hailemichael O. Yosief, Cheng‐Kung Liu, R. Ashby, G. Strahan, N. Latona, Nusheng Chen","doi":"10.1680/jgrma.22.00026","DOIUrl":"https://doi.org/10.1680/jgrma.22.00026","url":null,"abstract":"Poly(3-hydroxybutyrate) (PHB) is a well-known member of the polyhydroxyalkanoate family of biopolymers and it has been extensively investigated as an environmentally-benign replacement for petrochemical-based polymers. The practical application of PHB in the biomedical field and in packaging has been limited because of its relatively narrow processing window, high brittleness, and low thermal stability. In this study, a melt flow extrusion plastometer was used to investigate the processability of PHB by evaluating its melt flow rate and the mechanical properties of its monofilament extrudates. The monofilament extrudates were collected after exposure to different processing temperatures (180°C and 190°C) and heating times as well as after blending the biopolymer with different fractions of ground raw wool. The melt flow rate of PHB was not significantly affected when blended with different amounts of wool fiber. However, the melt flow rate increased significantly with the increase in heat duration and temperature. The mechanical properties of the monofilament extrudates from the parental PHB and PHB/wool blends were influenced by the fraction of wool, temperature, and heat duration. The results of this study will be useful in selecting appropriate conditions to produce PHB-based blends/composites with desirable properties for a wide range of applications.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44428227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial 社论

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-12-01 DOI: 10.1680/jgrma.2022.10.4.145

Peter Halley

引用次数: 0

Greener and scalable synthesis of N-methyl imines using poly(N-vinylimidazole), a more sustainable functional polymer 使用更可持续的功能聚合物聚（N-乙烯基咪唑）更绿色、可扩展地合成N-甲基亚胺

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-09-21 DOI: 10.1680/jgrma.22.00068

Peyman Mihankhah, N. G. Khaligh

引用次数: 1

Research advances of vegetable oil based pressure sensitive adhesives 植物油基压敏胶的研究进展

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-09-12 DOI: 10.1680/jgrma.22.00061

Yufeng Ma, Yuan Ji, Jiale Zhang, Ye Sha, P. Jia, Yonghong Zhou

引用次数: 1

A comparative study of mechanical properties of polylactide bio-composites with woven and non-woven jute reinforcements 织造与非织造黄麻增强聚乳酸生物复合材料力学性能的比较研究

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-09-08 DOI: 10.1680/jgrma.21.00060

D. Lascano, Cristobal Aljaro, E. Fages, S. Rojas‐Lema, J. Ivorra‐Martinez, N. Montanes

{"title":"A comparative study of mechanical properties of polylactide bio-composites with woven and non-woven jute reinforcements","authors":"D. Lascano, Cristobal Aljaro, E. Fages, S. Rojas‐Lema, J. Ivorra‐Martinez, N. Montanes","doi":"10.1680/jgrma.21.00060","DOIUrl":"https://doi.org/10.1680/jgrma.21.00060","url":null,"abstract":"The concern that has arisen in recent years over the excessive use of oil-based materials has made the development of new materials with low environmental impact imminent, in this context. In this study, environmentally friendly composites were obtained with a thermoplastic polylactide matrix (PLA), and jute fibers (fabrics and non-woven mats) as reinforcement. PLA/jute bio-composites were manufactured by thermocompression. The effect of the amount of jute fibers reinforcement (in the 30-50 wt.% range) on the tensile and flexural properties of these composites was analyzed, and the fiber-matrix interaction was assessed by scanning electron microscopy (SEM). The results show that thermocompression moulding is a simple technique to obtain high environmental efficiency bio-composites with high reinforcement loading (up to 50 wt.%). As expected, the tensile properties are directly related to the amount of fiber loading, as well as the directionality these fibers have in the composite. Mechanical performance is also highly dependent on fiber-matrix interactions. These bio-composites could be attractive as lightweight interior panels in automotive industry, case/covers in electric-electronics applications, shovels’ components in the wind energy industry, among others, due to their balanced mechanical properties, and the rather complex shapes that could be obtained by thermocompression.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48268786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1