Proceedings of the 1st International Conference on Chemical Science and Technology Innovation最新文献_第2页

Preparation and Characteristics of Polyvinyl Alcohol-based Hydroel Containing Natural Microbentonite 含天然微膨润土聚乙烯醇基水凝胶的制备及性能研究

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008928103010304

M. Manullang, D. A. Nasution, B. Wirjosentono

{"title":"Preparation and Characteristics of Polyvinyl Alcohol-based Hydroel Containing Natural Microbentonite","authors":"M. Manullang, D. A. Nasution, B. Wirjosentono","doi":"10.5220/0008928103010304","DOIUrl":"https://doi.org/10.5220/0008928103010304","url":null,"abstract":": In this work, polyvinylalcohol (PVA)-based interpenetrating-hydrogels containing natural microbentonite (NMB) were prepared in a bench scale reflux-reactor using water as solvent in an optimized condition in the presence of constant compositions of acrylicacid (AA) and N,N’-methylenebisacryamide (MBA) as comono-mers as well as ammoniumpersulphate [(NH 4 ) 2 S 2 O 8 , APS] as initiator. Results of interpenetrating-hydrogels, with various loadings of NMB (2, 5, 10 and 15%) were moulded and cooled to form film specimens, and then characterized for their properties. First of all, their mechanical properties and chemical structure were measured using tensile testing (ASTM D882) and infrared spectroscopy (FTIR), then their thermal properties were analysed using differential scanning calorimetry (DSC), and their morphological properties were tested using scanning electron microscopy (SEM). Results showed that optimum composition weight ratio of PVA/AA/NMB/MBA/APS = 60/40/10/1/0.5 enhanced highest tensile modulus of the interpenetrating-hydrogel microcomposites 25% in compare to its neat hydrogel counterpart. FTIR analysis of the film speci-mens after exhaustive extraction in n-hexane still contained stable AA-carbonyl (C=O) peak at 1725 cm -1 . Thermal properties of the optimized composition of the hydrogel showed slight improved of thermal stability (decomposition temperature increase from 280 – 285 o C). Morphological properties of the interpenetrating-hydrogel microcomposite also showed finely distributed of the microfiller, which is responsible for its improved mechanical and thermal properties. It is recommended that the interpenetrating-hydrogels can be further developed for application as biomedical materials.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89275952","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

The Synthesis of Graphene from Coconut Shell Charcoal 椰壳炭合成石墨烯

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008839600390044

M. Supeno, R. Siburian, Desi Natalia

引用次数: 1

Preparation and Characterization of Biochar from Palm Kernel Shells as an Activated Carbon Precursors with the Pyrolysis Method 棕榈仁壳生物炭的热解制备及表征

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008863101520155

R. Dewi, H. Agusnar, Z. Alfian, Tamrin

引用次数: 0

Proximate and Physical Characteristics of Cookies Made of Cassava Starch and Wheat Flour Blends Containing Soymilk Waste Powder 含豆浆废粉的木薯淀粉与小麦粉混合制饼干的近似特性和物理特性

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0009005403390342

B. Wirjosentono, Tamrin, A. Siregar, D. A. Nasution, Paula Netti Sihombing

引用次数: 0

Examination of Micro-structural, Mechanical Properties and Investigation of Optimum Conditions of Diffusion Bonding between Grey Cast Iron and Low Carbon Steel 灰铸铁与低碳钢扩散连接的显微组织、力学性能及最佳扩散连接条件研究

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008837000100017

F. Ayob, P. Hussain, M. Awang, Aiziz Abdullah, Bakhtiar Arif Baharuddin, Aziz Abdul Rahim, A. Ismail

{"title":"Examination of Micro-structural, Mechanical Properties and Investigation of Optimum Conditions of Diffusion Bonding between Grey Cast Iron and Low Carbon Steel","authors":"F. Ayob, P. Hussain, M. Awang, Aiziz Abdullah, Bakhtiar Arif Baharuddin, Aziz Abdul Rahim, A. Ismail","doi":"10.5220/0008837000100017","DOIUrl":"https://doi.org/10.5220/0008837000100017","url":null,"abstract":": An experimental research is being conducted on the joining of dissimilar materials of grey cast iron to low carbon steel utilizing diffusion bonding method. Diffusion bonding process operates on the principle of solid-state diffusion, wherein the atoms of two solid, metallic surfaces intersperse themselves over time, moving an atomic mass form or diffusion through the lattice of a crystalline solid. Upon producing of the diffusion couples through diffusion bonding, the bonds are subjected to SEM (Scanning Electron Microscopy), EPMA (Electron Probe Micro Analyzer), XRD (X-Ray Diffraction), EDS/EDX (Energy Dispersive X-Ray Spectroscopy), WDX’s (Wavelength-dispersive X-ray spectroscopy) micro-structural analysis and mechanical properties examination. Subsequent investigation is to be carried out to establish the diffusion mechanism, inter-diffusion coefficients and activation energy of the diffusion system. To study the optimum conditions that produce excellent and ultimate bond, various bonding parameters and variables are taken into consideration. This paper describes the research progress undertaken to date, explaining the materials involved, equipment, method and preliminary as well as current results on microstructure analysis, tensile test and micro-hardness test.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87620517","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

Distillation of Agarwood Oil (Aquillaria sp) using Photovoltaic Methods 用光电法蒸馏沉香油(Aquillaria sp

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008853300570062

Nelly Safitri, T. Rihayat, Suryani, S. Riskina, R. Saputra, A. Safitri, Tjut Yayang Risqatia Hasnah, K. Y. Putri, Y. Yunus

{"title":"Distillation of Agarwood Oil (Aquillaria sp) using Photovoltaic Methods","authors":"Nelly Safitri, T. Rihayat, Suryani, S. Riskina, R. Saputra, A. Safitri, Tjut Yayang Risqatia Hasnah, K. Y. Putri, Y. Yunus","doi":"10.5220/0008853300570062","DOIUrl":"https://doi.org/10.5220/0008853300570062","url":null,"abstract":": The use of solar light is currently used as one of the renewable energy by utilizing sunlight, or commonly called photovoltaic (PV). One of the technologies related to the application of solar panels to energy by converting sunlight into electricity is called photovoltaic. The amount of solar energy that can be absorbed depends on the cell size and absorption of solar cells on sunlight. Solar panels are known as WP (Watt peak) where this amount is the maximum power produced by each panel unit with a capacity of 100 watts/hour, size 1200 mm x 550 mm with a thickness of 35 mm. The battery used is 12 Volt 200 Ah, and the heater used is 2000 Watt. Agarwood crust is obtained from the Aquillaria malaccensis tree, which is then soaked for 14, 16, 18, 20 and 22 days respectively. The best results of soaking are at 14 days, during which the immersion process has expanded and finally broken, so that water enters the cell wall through diffusion and increases turgor pressure. Soaking water becomes more acidic over time and damages the cell wall. This causes the process of increasing cell wall destruction. However, a longer immersion time causes more oil content to be wasted into soaking water. It was concluded that the most suitable immersion time for extracting agarwood oil was 14 days. The results showed that high oil yield was obtained from oil extracted with a 10 hour hydro distillation sample (0.44% analysis water content). Analysis of chemical compounds using GC-MS showed a typical compound of agarwood namely Guaiol with the highest value 4.10% (GC-FID) and 1.95% (GC-MS). Guaiol was used as a parameter to determine the quality of essential oils produced from the distillation process that has been carried out because the area produced from the test results has an area greater than other components contained in essential oils.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85508498","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

Lead (II) Nitrate Catalyzed Esterification Palmitic Acid with Alcohols 硝酸铅催化棕榈酸与醇的酯化反应

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008857901330135

N. Bangun, J. Karo-karo, H. Nainggolan, S. Silaban, Nia Erisa Tarigan, Rahmad Ramadan

引用次数: 0

Synthesis and Identification of Furfural from Cocoa Pod Husk (CPH) with Pretreatment Process before Hydrolysis Process 水解前预处理可可荚壳中糠醛的合成与鉴定

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008863801600164

Lisa Aulia Lubis, A. Husin, Maulida

{"title":"Synthesis and Identification of Furfural from Cocoa Pod Husk (CPH) with Pretreatment Process before Hydrolysis Process","authors":"Lisa Aulia Lubis, A. Husin, Maulida","doi":"10.5220/0008863801600164","DOIUrl":"https://doi.org/10.5220/0008863801600164","url":null,"abstract":"Furfural is an organic compound that can be produced from agricultural waste such as oats, corn cobs, rice husks, bagasse, and sawdust. Cocoa pod husk is a renewable raw material for furfural manufacturing. Furfural synthesis from cocoa pod husk is an attempt to create value-added of cocoa pod husk. Furfural synthesis was based on the hydrolysis of pentosan into xylose which was then dehydrated to furfural. Cocoa pod husk waste contains pectin and lignin which can interfere hydolysis process. It make use pretreatment process to reduce pectin and lignin. Percentages pectin, lignin and pentosan before pretreatment were 9.2 ± 0.5, 14.7% and 38.9% and after pretreatment to be 1.7 ± 0.01, 4.13% and 37.5%. In this study used hydrolysis temperature variations (110, 120, 130 and 140) 0C and hydrolysis time (10, 20, 30, 40 and 50) minutes. The optimum conditions obtained at temperature and time of hydrolysis of 1300C and 30 minutes, weight furfural obtained was 6.728 g/7,50g pentosan or 6,728g/20g of cocoa pod husk and yield furfural obtained was 82.2%. This shows that cocoa pod husk has a high potential to be converted into furfural and can be used as a renewable raw material in furfural manufacturing. Furfural identified by color test using aniline acetate 1:1, Gas Cromatographic Mass Spectrometry (GCMS) and infraspectrophotometer (FTIR).","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89261703","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

Phosphate Adsorption using KOH Activated Coal Bottom Ash KOH活性煤底灰对磷酸盐的吸附研究

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008855501000104

Fatimah Agussalim, Alfikri Ramadhan, Budi Pratama Tarigan

{"title":"Phosphate Adsorption using KOH Activated Coal Bottom Ash","authors":"Fatimah Agussalim, Alfikri Ramadhan, Budi Pratama Tarigan","doi":"10.5220/0008855501000104","DOIUrl":"https://doi.org/10.5220/0008855501000104","url":null,"abstract":": Research on phosphate adsorption using activated KOH coal bottom ash has been carried out. This study aims to assess the utilization of bottom ash as an adsorbent to adsorb phosphate ions from water bodies. Research starts from the activation process for 5 hours with 3 M NaOH solution. Then the pre-activated and post-activated bottom ash are characterized using Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS). Based on the results of the characterization with SEM-EDS, the surface of pre-activated bottom ash surfaces seems smooth because they are still covered by impurity metals such as Fe, Ti and Mg. After activation, bottom ash surfaces become rough because impurities such as Fe, Ti, and Mg are lost and thus the pores are opened. The bottom ash then was applied to absorb phosphate ions with variations of particle size (50-70 mesh, 70-110 mesh, and 110-140 mesh) and dosage of adsorbent (1, 2, and 3 g) and were contacted for 60 minutes to 1000 ml phosphate solute of concentration 10 mg/l. Remaining phosphate ions concentration in solute after adsorption are analyzed using UV-vis spectrophotometer. Best adsorption of phosphate ions with 74.8% efficiency was obtained at particle size of 110-140 mesh and dosage adsorbent of 3 g. The highest adsorption capacity (7.02 mg / g) was obtained with dosage of 1 g adsorbent. Freundlich and Langmuir's models were used to describe the phosphate ion adsorption by KOH activated bottom ash isotherm. Based on the data obtained, the suitable model for this study is Freundlich model with a value of R 2 = 0.9721.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79615589","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

Furfural Synthesis from Mile-a-Minute Weed (Mikania micrantha) using Roselle Petal Extract as Catalyst 以玫瑰花瓣提取物为催化剂从一分钟薇甘菊中合成糠醛

Proceedings of the 1st International Conference on Chemical Science and Technology Innovation Pub Date : 2019-01-01 DOI: 10.5220/0008838400210025

Taslim, Iriany, O. Bani, A. Sinaga

{"title":"Furfural Synthesis from Mile-a-Minute Weed (Mikania micrantha) using Roselle Petal Extract as Catalyst","authors":"Taslim, Iriany, O. Bani, A. Sinaga","doi":"10.5220/0008838400210025","DOIUrl":"https://doi.org/10.5220/0008838400210025","url":null,"abstract":": Mile-a-minute weed (Mikania micrantha) contains a large fraction of pentosan, and thus, is suitable as a precursor of furfural. Generally, furfural production from biomass requires inorganic acids, such as sulfuric acid and hydrochloric acid, as catalyst. However, the use of inorganic acid is not environmentally benign and causes equipment corrosion. In this study, 50 g dry mile-a-minute weed was reduced to 100 meshes and mixed with 50 g sodium chloride. Then, this mixture was added into roselle petal extract at a ratio of 1:6 (w/v) in a three-neck flask. The flask was then connected to a Liebig condenser and an erlenmeyer was placed at the other end of the condenser to collect the furfural. The reaction was carried out at 100-120℃ and for 0-330 min. The resulting furfural was separated from water by extraction using chloroform. Two layers of liquid were formed during extraction. The top layer was rich in water and the bottom layer was rich in chloroform and furfural. The lower layer was distilled to purify furfural. The purified furfural was identified by aniline acetate color test, Fourier-Tranform Infrared Spectrocopy (FTIR) and Gas Chromatography–Mass Spectrometry (GCMS). The results suggested that organic acids from roselle petal extraction can be used as a catalyst in furfural systhesis.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73367446","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