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Development of Agro-Industrial Waste Reinforced Natural Rubber Composite: A Potential Formulation for Rubber Flooring Product 农工废弃物增强天然橡胶复合材料的开发:一种有潜力的橡胶地板产品配方
Journal of Advanced Chemical Sciences Pub Date : 2018-09-19 DOI: 10.30799/JACS.190.18040302
T. Kirushanthi, T. Etampawala, D. Edirisinghe, Jagath Pitawala, D. Ratnaweera
{"title":"Development of Agro-Industrial Waste Reinforced Natural Rubber Composite: A Potential Formulation for Rubber Flooring Product","authors":"T. Kirushanthi, T. Etampawala, D. Edirisinghe, Jagath Pitawala, D. Ratnaweera","doi":"10.30799/JACS.190.18040302","DOIUrl":"https://doi.org/10.30799/JACS.190.18040302","url":null,"abstract":"Agro-industrial waste has become a major environmental issue in most parts of the world. Rice husk is one of the major agricultural wastes especially in Asian countries. It is currently thrown away into landfills or rarely use as an alternative energy source, which in turn produce another waste, rice husk ash (RHA). Silica is the major component in well-burnt RHA. This work was aimed to evaluate the feasibility of utilizing silica extracted from RHA and another industrial waste, used tyre treads, with natural rubber to develop composite with enhanced mechanical properties especially for flooring products such as rugs, pavement blocks, door mats, etc. In this work extracted silica was characterized using Fourier-transform infrared spectroscopy, X-ray diffractometry (XRD), X-ray fluorescence spectroscopy (XRF) and scanning electron microscopy (SEM). The SEM images confirmed that the extracted silica is in the nanometer to sub-micrometer length scale in size. Further our results confirmed that extracted silica has comparable chemical composition and amorphous nature as commercially used silica in rubber compounding. Composites were first formulated using crumb rubber to identify the optimum crumb rubber loading. It is found that 25 phr of crumb rubber provides the optimal mechanical properties. Finally, extracted silica was incorporated to 25 phr crumb rubber loaded composite to further reinforcement. SEM images confirm that 10 phr of silica have enhanced matrix-filler interactions to produce continuous structure, which was not observed in crumb rubber loaded rubber composite.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88899772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Contribution to the Study of Useful Natural Materials from Niger: Physicochemical Characterization of Natural Nigerien Clay 对尼日尔有用天然材料研究的贡献:尼日尔天然粘土的理化性质
Journal of Advanced Chemical Sciences Pub Date : 2018-09-04 DOI: 10.30799/JACS.189.18040301
H. Saidou, A. Hamzaoui, A. Rabhi, A. M’nif
{"title":"Contribution to the Study of Useful Natural Materials from Niger: Physicochemical Characterization of Natural Nigerien Clay","authors":"H. Saidou, A. Hamzaoui, A. Rabhi, A. M’nif","doi":"10.30799/JACS.189.18040301","DOIUrl":"https://doi.org/10.30799/JACS.189.18040301","url":null,"abstract":"This paper concerned the physicochemical characterization of a natural Nigerien clay from the Goulbi valley, Djirataoua, department of Madarounfa, Maradi province, Niger republic. Sample clay was characterized using X-rays diffraction spectrometry, infrared spectrometry, laser granulometry, and atomic absorption spectrometry. The results obtained showed that Djirataoua clay is acidic (pH = 5.5) with a low percentage of humidity (3.298%) and a small swelling index (2.141%). This clay contains mainly of quartz (67.67%) and relatively small fractions of other probable minerals.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75962305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, Characterization and Photocrosslinkable Studies of Certain Thermotropic Liquid Crystalline Poly(ester-amides) 某些热致液晶聚酯酰胺的合成、表征及光交联性研究
Journal of Advanced Chemical Sciences Pub Date : 2018-07-22 DOI: 10.30799/JACS.187.18040202
Kavitha Erra Kalappa, S. Antony, N. Ramalakshmi
{"title":"Synthesis, Characterization and Photocrosslinkable Studies of Certain Thermotropic Liquid Crystalline Poly(ester-amides)","authors":"Kavitha Erra Kalappa, S. Antony, N. Ramalakshmi","doi":"10.30799/JACS.187.18040202","DOIUrl":"https://doi.org/10.30799/JACS.187.18040202","url":null,"abstract":"Article history: Received 15 June 2018 Accepted 27 June 2018 Available online 22 July 2018 Five thermotropic liquid crystalline poly(ester-amides) were synthesized by polycondensation method using varying dicarboxylic acids with a common diamine namely 4,4'-diaminodiphenyl and a common diol namely 2,6-bis(4-hydroxy-3-methoxybenzylidene)cyclohexanone (CHBV). The solubility data and viscosity measurements of these synthesized poly(ester-amides) were used for qualitative characterization. The spectroscopic techniques such as FT-IR, 1H NMR, 13C NMR were performed for investigating micro structural features. By differential scanning calorimetry (DSC), the thermal phase transition behavior of these poly(ester-amides) was studied. Scanning electron microscopy (SEM) technique was used to investigate the morphology of these poly(ester-amides). By using UV-visible spectroscopic technique, the photocrosslinkability of these poly(ester-amides) were studied by irradiating these poly(ester-amides) under a 160 W medium pressure mercury lamp. SEM analysis of these UV irradiated poly(ester-amides) showed the changes in morphology. Thus, the poly(esteramides) containing arylidene keto moiety in the main chain exhibited nematic mesophase and were photocrosslinked upon UV irradiation. X-ray diffraction (XRD) patterns of these poly(ester-amides) were taken to assess the degree of crystallinity.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89339087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
4f-4f Transition Spectral Analysis to Probe the Kinetics for the Complexation of Nd(III) with Guanosine and Guanosine Triphosphate (GTP) 4f-4f跃迁光谱分析探讨Nd(III)与鸟苷和鸟苷三磷酸(GTP)络合动力学
Journal of Advanced Chemical Sciences Pub Date : 2018-05-08 DOI: 10.30799/JACS.182.18040201
N. Bendangsenla, M. Devi, T. Moaienla, Ruokuosenuo Zatsu
{"title":"4f-4f Transition Spectral Analysis to Probe the Kinetics for the Complexation of Nd(III) with Guanosine and Guanosine Triphosphate (GTP)","authors":"N. Bendangsenla, M. Devi, T. Moaienla, Ruokuosenuo Zatsu","doi":"10.30799/JACS.182.18040201","DOIUrl":"https://doi.org/10.30799/JACS.182.18040201","url":null,"abstract":"Article history: Received 09 April 2018 Accepted 21 April 2018 Available online 08 May 2018 The interaction of Nd(III) with Guanosine and Guanosine triphosphate (GTP) in presence and absence of Ca(II) has been studied through 4f-4f transition spectra in different organic solvents. Mode of binding of Nd(III) with nucleoside (guanosine) and nucleotide (guanosine triphosphate, GTP) is interpreted considering the variations in evaluated values of intensity parameters like oscillator strength (P) and Judd Ofelt electric dipole intensity parameters (Tλ, λ=2,4,6). It is further studied through kinetics, subsequently Ea, rate constant (k) and thermodynamic parameters viz, ΔH°, ΔG°, ΔS° etc., has been evaluated from which detailed thermodynamical information of complex can be explored.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85268310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production of Biodiesel from Waste Cooking Oil: A Review 废食用油制备生物柴油研究进展
Journal of Advanced Chemical Sciences Pub Date : 2018-04-26 DOI: 10.30799/jacs.181.18040105
A. Bhavani, V. Sharma
{"title":"Production of Biodiesel from Waste Cooking Oil: A Review","authors":"A. Bhavani, V. Sharma","doi":"10.30799/jacs.181.18040105","DOIUrl":"https://doi.org/10.30799/jacs.181.18040105","url":null,"abstract":"Biodiesel is a liquid transportation fuel that can be produced from renewable raw material such as waste cooking oil. The use of cooking oil as raw material for biodiesel production will enhance the viability of the food industry. Biodiesel, and the process is called transesterification. It is a chemical process in which a triglyceride in the vegetable oils and fat reacts with alcohol in the presence of a strong acid or base to produce a mixture of fatty acids alkyl esters (FAAE) and glycerol. Technologies of transesterification of vegetable oils into fatty acid methyl esters (FAME) called biodiesel, have been experimentally established and are well documented in the open literature. But, no previous work using ultrasonic tubular reactor in biodiesel process was explored. This study will provide useful data for society in the biodiesel process.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80958705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Investigation of Solution Behaviour of an Ionic Liquid in Diverse Cellosolves by Physicochemical Contrivance 用物理化学方法研究离子液体在不同纤维素溶液中的溶解行为
Journal of Advanced Chemical Sciences Pub Date : 2018-04-02 DOI: 10.30799/JACS.180.18040104
Ashutosh Dutta, Kanak Roy, S. Basak, Sukdev Majumder, M. Roy
{"title":"Investigation of Solution Behaviour of an Ionic Liquid in Diverse Cellosolves by Physicochemical Contrivance","authors":"Ashutosh Dutta, Kanak Roy, S. Basak, Sukdev Majumder, M. Roy","doi":"10.30799/JACS.180.18040104","DOIUrl":"https://doi.org/10.30799/JACS.180.18040104","url":null,"abstract":"Solution behaviour prevailing in 1, 3-dimethylimidazoliummethylsulfate (IL) and some diverse industrially important alkoxy-alcohols or cellosolves have been investigated by electrolytic conductivity, density (⍴), viscosity (η) and FT-IR spectroscopic investigation. The derived parameters such as the limiting molar conductivities (Λ0), association constants (KA), the distance of closest approach (R), etc. of the ions supplemented with conductance, density and viscosity have been evaluated using the Fuoss conductance equation. The quantitative values of molecular interactions from thermodynamic parameters have been discussed in terms of some non-covalent interactions. Functional groups of the pure solvents and structural characteristics of ionic liquid in different solvents have been discussed and taken into contemplation for spectroscopic study.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90383774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Study to Explore Diverse Interactions by Physicochemical Contrivance of an Ionic Liquid in Aqueous Oligosaccharides 离子液体在低聚糖水溶液中不同相互作用的理化研究
Journal of Advanced Chemical Sciences Pub Date : 2018-03-09 DOI: 10.30799/JACS.173.18040103
B. Datta, A. Yasmin, M. Roy
{"title":"Study to Explore Diverse Interactions by Physicochemical Contrivance of an Ionic Liquid in Aqueous Oligosaccharides","authors":"B. Datta, A. Yasmin, M. Roy","doi":"10.30799/JACS.173.18040103","DOIUrl":"https://doi.org/10.30799/JACS.173.18040103","url":null,"abstract":"In this article interaction properties of an IL, 1-butyl-1-methylpyrrolidinium chloride ([bmp]Cl) have been studied in different concentrations of aqueous D(-)fructose and D(+)galactose solutions at diverse temperatures. In spite of having green solvent property toxicity of ILs has been revealed. So the interface of ILs with biomolecules (such as carbohydrates) is a progressive research topic. The limiting molal conductivities, association constants of the ion have been evaluated. From density measurement the limiting apparent molal volumes, experimental slopes and the limiting partial molal transfer volumes are derived. Viscosity measurement helps to determine viscosity -B coefficients and dB/dT. The association constant has been used to study the thermodynamic functions of association process. Consequently, Gibbs free energy, enthalpy and entropy of ion-pair formation have been determined. In addition, the 1H NMR spectra of carbohydrates, IL and carbohydrate + IL + D 2 O were studied. The NMR study does not show any special and strong interactions between IL and carbohydrates but, the macro properties and their changes in terms of size and structure of carbohydrates and IL have been discussed. By means of the interaction between IL and biomolecules, the potential toxicity of ILs may originate.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90056364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of Esterifying Ability of Some Lipases 几种脂肪酶酯化能力的比较
Journal of Advanced Chemical Sciences Pub Date : 2018-02-20 DOI: 10.30799/jacs.179.18040102
V. Gamayurova, M. Jamai, S. Zaripova, K. Shnaider, N. I. Bildanova, M. Chernykh
{"title":"Comparison of Esterifying Ability of Some Lipases","authors":"V. Gamayurova, M. Jamai, S. Zaripova, K. Shnaider, N. I. Bildanova, M. Chernykh","doi":"10.30799/jacs.179.18040102","DOIUrl":"https://doi.org/10.30799/jacs.179.18040102","url":null,"abstract":"The esterification activity of some commercial lipases was examined. The comparison of the enzymatic activities was carried out in regard to the synthesis of esters of lower aliphatic acids and alcohols. The highest esterifying ability was shown by the enzyme preparation Novozym 435 which quickly starts the process. The conversion of used acids was 70 - 82% within 0.5 hours, and reached 90% of conversion in 1 hour of reaction. Similar efficacy shows Novozym 40086. This enzyme preparation provides 90% conversion of the acids in two hours of process. The enzyme preparation Lipozyme TLIM provides conversion of the used acids on 84 – 90% in three hours of process. The enzyme preparation Lipozyme CALB is less effective on the used acids. Thus, in the synthesis of aliphatic esters the esterifying ability of enzyme preparations in the studied conditions decreases in a row: Novozym 435, Novozym 40086, Lipozyme TLIM, Lipozyme CALB. Pancreatic lipase in the synthesis of butyl butyrate detects an induction period of about 1 hour.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87573672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Growth of Literature and Measures of Scientific Productivity of Indian Chemical Science Research during 2002-2016 2002-2016年印度化学科学研究文献增长与科学生产力测度
Journal of Advanced Chemical Sciences Pub Date : 2018-01-31 DOI: 10.30799/jacs.178.18040101
M. Sab, P. D. Kumar, B. S. Biradar
{"title":"Growth of Literature and Measures of Scientific Productivity of Indian Chemical Science Research during 2002-2016","authors":"M. Sab, P. D. Kumar, B. S. Biradar","doi":"10.30799/jacs.178.18040101","DOIUrl":"https://doi.org/10.30799/jacs.178.18040101","url":null,"abstract":"This study reports the data analysis of chemical science research World and India during 2002-2016. Different data sets have been used for application of different indicators, publications, growth rate, areas of research and discussing its media of communication, strength and weakness in the areas of research, quality of research output, nature of highly cited papers, collaboration (national and international). The analysis of chemical science has finds the publications share of India during 2002-2016 was 5.46%, which has increased from 3.94 in 2002 to 6.99 in 2016 and it is observed from the study that the percentage of India’s papers compared to that of the world’s papers. India, share of science and technology research output increased from 3.94% in 2002 to 6.99% in 2016. The study shows a significant increase and suggests a 5.30% average growth in the yearly share and data has been collected from Web of Science database.","PeriodicalId":14902,"journal":{"name":"Journal of Advanced Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75918349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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