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Influence of Initiators on the Adhesion Properties of Bitumen Modified by Natural Origin Epoxide 引发剂对天然环氧改性沥青粘接性能的影响
Chemistry and Chemical Technology Pub Date : 2021-03-15 DOI: 10.23939/CHCHT15.01.142
V. Starchevskyy, Y. Hrynchuk, P. Matcipura, V. Reutskyy
{"title":"Influence of Initiators on the Adhesion Properties of Bitumen Modified by Natural Origin Epoxide","authors":"V. Starchevskyy, Y. Hrynchuk, P. Matcipura, V. Reutskyy","doi":"10.23939/CHCHT15.01.142","DOIUrl":"https://doi.org/10.23939/CHCHT15.01.142","url":null,"abstract":"The article is presenting a modification of bituminous binder with ecological epoxidized rapeseed oil (BERO) in the presence of the initiator (hardener). Adipic acid (AA), maleic anhydride (MA) and polyethylene polyamine (PEPA) were used as the initiators. The effect of modification temperature and, as well as initiator nature, on the bitumen properties was determined. Bitumen modified with BERO was evaluated by the following indicators: softening temperature, penetration, ductility, and adhesion to the glass. The optimal initiator : rapeseed oil epoxide (ERO) : bitumen ratio was found to be 0.15:3:100; it allows obtaining bitumen with improved properties, in particular, adhesive properties increase by 2–3 times depending on the nature and content of the initiator. To improve the formula composite and evaluation of asphalt mixtures the additional researches will be conducted.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87225891","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: 5
Adsorption of Heavy Metal on Active Carbon Derived from Coconut Leaves Agro-Waste 椰叶废弃物活性炭对重金属的吸附研究
Chemistry and Chemical Technology Pub Date : 2020-12-15 DOI: 10.23939/chcht14.04.553
A. Jadhav, G. Mohanraj, S. Mayadevi, A. Gokarn
{"title":"Adsorption of Heavy Metal on Active Carbon Derived from Coconut Leaves Agro-Waste","authors":"A. Jadhav, G. Mohanraj, S. Mayadevi, A. Gokarn","doi":"10.23939/chcht14.04.553","DOIUrl":"https://doi.org/10.23939/chcht14.04.553","url":null,"abstract":"In this paper activated carbon is prepared from coconut leaves by chemical activation during slow pyrolysis at 673 K in an inert atmosphere. Activated carbon is prepared in the stiochiometric ratio of 1:1 (CL1), 2:1 (CL2) and 3:1 (CL3). Optimized 3:1 ratio is preferable for further study. BET surface area of CL3 activated carbon was found 1060.57 m/g. It is greater than those of CL1 and CL2. The batch sorption study experiments were conducted with respect to solute concentration of 2.5– 122.8 mg/l and solution temperature of 313–343 K. The Langmuir, Freundlich and Temkin isotherm studies were conducted. The experimental data fitted very well for the pseudo-first order and pseudo-second-order. The results have established good potentiality for the CL3 activated carbon to be used as a sorbent for the removal of lead from wastewater.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77158975","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
Determination of the Conditions for Carbon Materials Oxidation with Carbon Monoxide Formation at High Temperatures 碳材料高温氧化生成一氧化碳条件的测定
Chemistry and Chemical Technology Pub Date : 2020-12-15 DOI: 10.23939/chcht14.04.545
Yevgen M. Panov, N. Gomelia, O. Ivanenko, A. Vahin, S. Leleka
{"title":"Determination of the Conditions for Carbon Materials Oxidation with Carbon Monoxide Formation at High Temperatures","authors":"Yevgen M. Panov, N. Gomelia, O. Ivanenko, A. Vahin, S. Leleka","doi":"10.23939/chcht14.04.545","DOIUrl":"https://doi.org/10.23939/chcht14.04.545","url":null,"abstract":"In this paper, the influence of carbon material type, temperature and oxygen concentration in gas mixture on the processes of carbon monoxide formation in production of the electrodes by graphitization was explored experimentally. Specific quantity of gas formed for a definite time, reduced to mass unit of carbon loading using pitch, packing materials and charge mixture of industrial use, was calculated. It is demonstrated that pitch provides the highest rate of carbon oxidation with the release of CO and substantially exceeds packing materials and charge mixture for this index.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77805542","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
Properties of the Composites Made of Glauconite and Polyaniline in Aqueous Solutions of Phosphoric Acid 海绿石与聚苯胺复合材料在磷酸水溶液中的性能研究
Chemistry and Chemical Technology Pub Date : 2020-12-15 DOI: 10.23939/chcht14.04.487
S. Nesterivska, V. Makogon, М. Yatsyshyn, I. Saldan, O. Reshetnyak, N. German, Y. Stadnyk
{"title":"Properties of the Composites Made of Glauconite and Polyaniline in Aqueous Solutions of Phosphoric Acid","authors":"S. Nesterivska, V. Makogon, М. Yatsyshyn, I. Saldan, O. Reshetnyak, N. German, Y. Stadnyk","doi":"10.23939/chcht14.04.487","DOIUrl":"https://doi.org/10.23939/chcht14.04.487","url":null,"abstract":"The glauconite-polyaniline composites were prepared through oxidation of aniline using ammonium peroxodisulfate in aqueous solutions of phosphoric acid on the surface of a glauconite powder. Intermolecular interaction between amorphous polyaniline macromolecules and interphase coupling of polyaniline to the glauconite surface was confirmed by X-ray diffraction and FT-IR spectroscopy. Higher concentration of phosphoric acid led to a stronger intermolecular and interphase connection because of H-bonding, and that resulted in higher electric conductivity while a magnetic susceptibility of the composites was not affected. Thermal analysis for the prepared composites confirmed the interfacial interaction between the polyaniline macromolecules and the surface of powdered glauconite.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86224785","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
Formation Features of Tubular Products on the Basis of Composite Hydrogels 基于复合水凝胶的管状产物的形成特征
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.312
O. Suberlyak, O. Grytsenko, N. Baran, G. Yatsulchak, B. Berezhnyy
{"title":"Formation Features of Tubular Products on the Basis of Composite Hydrogels","authors":"O. Suberlyak, O. Grytsenko, N. Baran, G. Yatsulchak, B. Berezhnyy","doi":"10.23939/CHCHT14.03.312","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.312","url":null,"abstract":"The method for obtaining composite hydrogel tubular products with the increased strength on the basis of copolymers of 2-hydroxyethylmethacrylate with polyvinylpyrrolidone has been developed. The method consists in the formation of hydrogel tubes with a subsequent precipitation from the solution into their outer surfa with polyvinylpyrrolidone. The obtained composite hydrogel tubes are characterized by the sufficient strength, resilience, elasticity, as well as the ability to withstand an internal pressure within 24–43 kPa (180–320 mm Hg).","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73904060","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: 13
Determination of the Combustion Characteristics of Chikila Coal Through the Kissinger Kinetics Model 用基辛格动力学模型测定奇奇拉煤的燃烧特性
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.433
Bemgba Bevan Nyakuma
{"title":"Determination of the Combustion Characteristics of Chikila Coal Through the Kissinger Kinetics Model","authors":"Bemgba Bevan Nyakuma","doi":"10.23939/CHCHT14.03.433","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.433","url":null,"abstract":"The combustion characteristics of Chikila coal (CHK) from Nigeria have been examined. It was established that CHK has a high carbon and fixed carbon content, but low nitrogen, sulphur, and ash content. Based on coal heating value, it was classified as a high volatile B bituminous coal. The temperature profile characteristics were examined through thermogravimetric analysis. The combustion kinetics of CHK was examined based on the Kissinger model. It is shown that CHK is a potentially good feedstock for future energy recovery and industrial utilization.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77495141","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
Study on Rheological Properties of Extra-Heavy Crude Oil from Fields of Ukraine 乌克兰油田特重质原油流变特性研究
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.412
P. Topilnytskyy, V. Romanchuk, T. Yarmola, Halyna Stebelska
{"title":"Study on Rheological Properties of Extra-Heavy Crude Oil from Fields of Ukraine","authors":"P. Topilnytskyy, V. Romanchuk, T. Yarmola, Halyna Stebelska","doi":"10.23939/CHCHT14.03.412","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.412","url":null,"abstract":"1 The rheological properties of oils from 3 wells of Yablunivske field (Poltava region, Ukraine) were investigated using a rotational viscometer. According to the dynamic viscosity and shear stress dependence on the shear velocity, the nature of the oil flow has been determined, which is of practical importance for evaluating the effectiveness of different modes of action on the rheological behavior of oils during their extraction and transportation.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75307471","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: 8
Rubber Crumb Modified Bitumen Produced from Crude Oils Residuals of Ukrainian Deposits 从乌克兰油田原油残渣中制备橡胶屑改性沥青
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.420
A. Nagurskyy, Y. Khlibyshyn, O. Grynyshyn, V. Kochubei
{"title":"Rubber Crumb Modified Bitumen Produced from Crude Oils Residuals of Ukrainian Deposits","authors":"A. Nagurskyy, Y. Khlibyshyn, O. Grynyshyn, V. Kochubei","doi":"10.23939/CHCHT14.03.420","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.420","url":null,"abstract":"1 The main regularities of the modification with a rubber crumb for bitumen produced from the residuals of crude oils of Ukrainian deposits have been studied. The thermal stability of the rubber crumb has been examined using the derivatograpgy. The mechanism of bitumen modification with the rubber crumb at low and high temperatures has been established. The influence of technological factors on the main quality indices of modified bitumen has been studied. The changes in the group composition of the original and modified bitumen were found.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85570411","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: 6
Optimization of Synthesis Conditions of Mercury Selenide Thin Films 硒化汞薄膜合成条件的优化
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.290
M. Sozanskyi, V. Stadnik, P. Shapoval, I. Yatchyshyn, R. Guminilovych, S. Shapoval, Gas Supply
{"title":"Optimization of Synthesis Conditions of Mercury Selenide Thin Films","authors":"M. Sozanskyi, V. Stadnik, P. Shapoval, I. Yatchyshyn, R. Guminilovych, S. Shapoval, Gas Supply","doi":"10.23939/CHCHT14.03.290","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.290","url":null,"abstract":"The mercury selenide (HgSe) films were obtained on glass substrates via the chemical deposition method. The aqueous solutions of mercury(II) nitrate, sodium thiosulfate, sodium selenosulfate and tri-sodium citrate were used. X-ray and elemental analysis of the film sample were made. The effect of initial reagents concentration, synthesis duration and temperature on the mass of HgSe films was investigated and coatings thickness was calculated. The optical and morphological properties of HgSe films were examined. The deposition mechanism is discussed.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88132938","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
Chromium(VI) Removal Using Activated Thuja Occidentalis Leaves Carbon Powder – Adsorption Isotherms and Kinetic Studies 活化木参叶炭粉去除六价铬吸附等温线及动力学研究
Chemistry and Chemical Technology Pub Date : 2020-09-22 DOI: 10.23939/CHCHT14.03.362
V. D. Rao, M. Rao, M. Krishna
{"title":"Chromium(VI) Removal Using Activated Thuja Occidentalis Leaves Carbon Powder – Adsorption Isotherms and Kinetic Studies","authors":"V. D. Rao, M. Rao, M. Krishna","doi":"10.23939/CHCHT14.03.362","DOIUrl":"https://doi.org/10.23939/CHCHT14.03.362","url":null,"abstract":"This study investigates the capability of Thuja occidentalis leaves carbon powder (TOLC) as a viable adsorbent for the expulsion of chromium(VI) from aqueous solutions. By batch mode, the removal percentage of Cr(VI) is observed to be pH perceptive and furthermore relies upon the time of equilibration, amount of the TOLC adsorbent and Cr(VI) concentration. TOLC adsorbent before and after adsorption of Cr(VI) was characterized with FTIR, SEM and EDX. Adsorption isotherm results divulge that the Langmuir model was a better fit. The kinetic studies divulge that the pseudosecond-order model was the best fit. TOLC adsorbent can be easily regenerated and utilised for several adsorption/ desorption cycles.","PeriodicalId":9762,"journal":{"name":"Chemistry and Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84827031","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: 3
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