Green Materials最新文献_第5页

Investigation of Dioscorea opposutifolia L. as green lubricat in water based drilling fluids 薯蓣作为水基钻井液绿色润滑剂的研究

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-05-19 DOI: 10.1680/jgrma.21.00017

Wen-Hang Tian, Qingchen Wang, Xiongxiong Liu, Weichao Du, Jie Zhang, Chen Gang

{"title":"Investigation of Dioscorea opposutifolia L. as green lubricat in water based drilling fluids","authors":"Wen-Hang Tian, Qingchen Wang, Xiongxiong Liu, Weichao Du, Jie Zhang, Chen Gang","doi":"10.1680/jgrma.21.00017","DOIUrl":"https://doi.org/10.1680/jgrma.21.00017","url":null,"abstract":"With the increasing exploration of unconventional well, such as horizontal wells and complex wells, and the increasing strict national environmental protection regulations, the requirement for drilling fluids lubricants is more demanding. High-performance and environment-friendly lubricants for water-based drilling fluid are urgently needed. In this work, Chinese yam (Dioscorea opposutifolia L.) was investigated as a drilling fluid lubricant, the effects of Chinese yam slurry on drilling fluid lubricating properties at different temperatures were investigated, and the compatibility and inhibitory properties of Chinese yam slurry were studied. The results show that the viscosity coefficient of the mud cake is reduced by 44.5% as 1.5% Chinese yam slurryadded in water-based drilling fluids. Chinese yam also has certain temperature resistance in drilling fluids, and it can inhibit the swelling of clay. Chinese yam slurry is compatitive compatible with other drilling fluid additives, and the lubricity of modified drilling fluids can also be improved effectively. The lubrication mechanism of Chinese yam slurry was discussed through TGA, SEM, FTIR, and contact angle tests.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41830868","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

Incorporation of epoxidized oleic acid plasticizer into poly(vinylidenefluoride) 环氧化油酸增塑剂掺入聚偏氟乙烯

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-05-11 DOI: 10.1680/jgrma.21.00078

W. Zulkifli, A. Hazmi, Z. Idris

引用次数: 0

Development of an insulating material based on mycelium Trametes elegans and the study of its hygrothermal properties 秀丽隐杆线虫菌丝体绝缘材料的研制及其湿热性能研究

IF 1.9 4区材料科学

Green Materials Pub Date : 2022-01-31 DOI: 10.1680/jgrma.21.00046

N. Farrera-Vázquez, L. Avilez-Trujilo, J. Moreira-Acosta, O. García-Ramos, A. Velázquez-Gurrola, A. Aguilar-Castillejos, Laura Vargas-Estrada, P. Sebastian

引用次数: 0

Synthesis and Characterization of Cr, Eggshell and Grinding Sludge Reinforced Aluminum Based Metal Matrix Composites: An Ingenious Experimental Approach Cr、蛋壳和研磨污泥增强铝基金属基复合材料的合成与表征:一种巧妙的实验方法

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-12-09 DOI: 10.1680/jgrma.21.00035

S. Dwivedi, M. Maurya, Shubham Sharma

{"title":"Synthesis and Characterization of Cr, Eggshell and Grinding Sludge Reinforced Aluminum Based Metal Matrix Composites: An Ingenious Experimental Approach","authors":"S. Dwivedi, M. Maurya, Shubham Sharma","doi":"10.1680/jgrma.21.00035","DOIUrl":"https://doi.org/10.1680/jgrma.21.00035","url":null,"abstract":"This investigation deals with the utilization of industrial waste to develop aluminum-based composite. Waste eggshell (ES) generated from the food industry has been used as primary reinforcement material. Waste grinding sludge (GS) produced from the iron forging sector was utilized as secondary reinforcement content. Cr content has been further encapsulated to the composite material to prevent the composite material's grain growth. The composite material was developed by the stir casting process. Experimental results concluded that tensile strength, compressive strength, and hardness of base material (AA5052 alloy) had been improved by about 18.02 %, 23.40 %, and 49.53 respectively, by adding 4.5 % of ES, 4.5 % of GS, and 1.5 % of Cr. Microstructural analysis of the AA5052/4.5 % ES/4.5 % GS/1.5 % Cr composite shows the fair distribution of reinforcement content. XRD of the Al/4.5 % ES/4.5 % GS/1.5 % Cr composite shows the occurrence of Al, Fe2O3, CaCO3, CaO, and Cr phases. Corrosion weight loss and thermal expansion behavior of developed composite have also been explored to observe the ES, GS, and Cr addition in the aluminum alloy.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47852458","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: 11

Editorial 编辑

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-12-01 DOI: 10.1680/jgrma.2021.9.4.145

J. Barone

引用次数: 0

Pyrolysis of Waste Polyolefin’s and E-component to Produce Renewable Green Fuel (RGF) Over CdCO3 废聚烯烃和e组分热解制备可再生绿色燃料(RGF)的研究

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-11-08 DOI: 10.1680/jgrma.21.00024

M. Singh, Sudesh Kumar

引用次数: 2

Modification of Waste Persimmon Peel and Application in Water-Based Drilling Fluid 废柿皮的改性及其在水基钻井液中的应用

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-10-27 DOI: 10.1680/jgrma.21.00016

Xuefan Gu, Long Gao, Yan Sun, Weichao Du, Jie Zhang, Gang Chen

引用次数: 2

Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles 合成条件对MnFe2O4颗粒结构和磁性能的影响

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-09-13 DOI: 20.00010

Nguyen Van Quang, Pham Thi Lan Huong, Nguyen Tu, Nguyen Thi Huyen, Nguyen Tri Tuan, Manh Trung Tran, Anh-Tuan Le

{"title":"Effects of synthesis conditions on structure and magnetic properties of MnFe2O4 particles","authors":"Nguyen Van Quang, Pham Thi Lan Huong, Nguyen Tu, Nguyen Thi Huyen, Nguyen Tri Tuan, Manh Trung Tran, Anh-Tuan Le","doi":"20.00010","DOIUrl":"https://doi.org/20.00010","url":null,"abstract":"Manganese ferrite (MnFe2O4) nanoparticles were synthesized through a coprecipitation method using manganese (II) chloride tetrahydrate (MnCl2·4H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as precursors. The scanning electron microscopy images showed that the as-synthesized particles were granular and about 20 nm. The X-ray diffraction patterns revealed that the manganese ferrite phase was completely decomposed into ferric oxide (Fe2O3) and manganese (III) oxide (Mn2O3) after annealing above 800°C in air. In contrast, its crystalline quality significantly improved when it was annealed in argon. By using the vibrating-sample magnetometry technique, it was demonstrated that the saturation magnetization (M s) of the as-prepared sample (~36.6 emu/g) decreased sharply up to ~5 emu/g after annealing at 1000°C in air and significantly increased to ~77.6 emu/g when it was annealed at 1000°C in argon. Under sunlight radiation, a higher efficiency was observed for manganese ferrite particles annealed in argon in the presence of hydrogen peroxide (H2O2), mainly due to the Fenton reaction between manganese ferrite and hydrogen peroxide. The authors suggest that the presence of hydrogen peroxide and the enhancement of the crystalline quality of the manganese ferrite phase are the two leading factors in improving methylene blue degradation efficiency.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"296 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138514974","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

Potential use of phosphogypsum in paving blocks 磷石膏在铺路砖中的潜在用途

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-09-13 DOI: 20.00001

Abdessattar Hamdi, Nejib Ben Jamaa, Imen Kallel Kammoun

{"title":"Potential use of phosphogypsum in paving blocks","authors":"Abdessattar Hamdi, Nejib Ben Jamaa, Imen Kallel Kammoun","doi":"20.00001","DOIUrl":"https://doi.org/20.00001","url":null,"abstract":"The present work aims to contribute to finding more recycling routes for phosphogypsum (PG) and its potential uptake in the material construction industry as paving blocks. Laboratory testing was conducted to formulate mixes using PG as fine sand replacement. An optimal 20% substitution rate was proved. Industrially processed paving blocks were made for high-quality experimental investigation. The most interesting testing results of PG paving blocks are the low water absorption coefficient of 5.7% and excellent mechanical properties, including high compressive and flexural strengths at early age (20.7 and 4.65 MPa at 7 days, respectively). Compressive strength evolves with respect to the curing period: 26% increase at 28 days and 36% increase at 90 days; flexural strength evolves from 6% at 28 days to 10% at 90 days. The leaching test showed low levels of heavy metals released, and their concentrations were lower in the mix than in the raw PG. For all the aforementioned results, PG waste from a phosphate plant in Gabès, Tunisia was proved to have high potential for reuse in the manufacturing of paving blocks with low health risks and excellent properties. Reusing PG waste in paving blocks would thus contribute to solving an environmental issue and reduce the use of sand, which is prone to depletion as a non-renewable resource.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"36 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138514983","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

Impact of grain size and reactant ratio on reduction of CO2 to CH4 by alkali metal hydride 晶粒尺寸和反应物配比对碱金属氢化物还原CO2制CH4的影响

IF 1.9 4区材料科学

Green Materials Pub Date : 2021-09-13 DOI: 20.00029

Juan Zhao, Yu-Jun Sheng, Yun-Lei Teng, Bao-Xia Dong

{"title":"Impact of grain size and reactant ratio on reduction of CO2 to CH4 by alkali metal hydride","authors":"Juan Zhao, Yu-Jun Sheng, Yun-Lei Teng, Bao-Xia Dong","doi":"20.00029","DOIUrl":"https://doi.org/20.00029","url":null,"abstract":"This paper aims to investigate the influence of the grain size and the alkali metal hydride (AH, where A = lithium (Li), sodium (Na) or potassium (K))/carbon dioxide (CO2) mole ratio on carbon dioxide reduction-conversion to methane (CH4) through alkali metal hydrides at an intermediate temperature. The result of this investigation shows that the grain size and AH (A = Li, Na or K)/carbon dioxide mole ratio have a considerable effect on the methane mole percentage and output. Compared with the original sample, when the lithium or potassium hydride sample is milled for 2 h, the mole percentage and output of methane increase. When the time for which the lithium or potassium hydride sample is milled is increased from 2 to 48 h, the mole percentage and output of methane change very little. For the sodium hydride and carbon dioxide system, the grain size of the sample has little effect on the methane mole percentage and output. In brief, alkali metal hydride milled for 2 h is enough for the methanation reaction. In consideration of the AH/carbon dioxide mole ratio, the effects on different reaction systems are not consistent. Activated alkali metal hydrides can effectively convert carbon dioxide to methane under various AH/carbon dioxide mole ratios, and the higher the mole ratio of AH/carbon dioxide, the better the methanation of alkali metal hydride with carbon dioxide.","PeriodicalId":12929,"journal":{"name":"Green Materials","volume":"8 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138514973","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