: Ageratum conyzoides known as bandotan is a plant widely grown in Indonesia. This plant is used for the treatment of various diseases such as antibacterial, anti-diabetic, anti-inflammatory, antioxidant, and analgesic. The active compounds contained in this plant include alkaloids, flavonoids, tannins, glycosides, minerals and other compounds. Plants that have ethno medicine history are promising candidates to obtain bioactive compounds from their endophytic fungi. In the present study, chemical compounds were isolated from endophytic fungus Syncephalastrum racemosum from the stem of Ageratum conyzoides with the chromatography method. The structures of the compounds were determined by spectroscopy analysis. The compounds are aromatic group.
{"title":"Chemical Compounds from Fungus Syncephalastrum racemosum Isolated as Endophytic from Ageratum conyzoides","authors":"Elfita, Muharni, Mardiyanto, Fitrya, Rismawati Simangunsong","doi":"10.5220/0008858001360140","DOIUrl":"https://doi.org/10.5220/0008858001360140","url":null,"abstract":": Ageratum conyzoides known as bandotan is a plant widely grown in Indonesia. This plant is used for the treatment of various diseases such as antibacterial, anti-diabetic, anti-inflammatory, antioxidant, and analgesic. The active compounds contained in this plant include alkaloids, flavonoids, tannins, glycosides, minerals and other compounds. Plants that have ethno medicine history are promising candidates to obtain bioactive compounds from their endophytic fungi. In the present study, chemical compounds were isolated from endophytic fungus Syncephalastrum racemosum from the stem of Ageratum conyzoides with the chromatography method. The structures of the compounds were determined by spectroscopy analysis. The compounds are aromatic group.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"153 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79652911","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}
Pub Date : 2019-01-01DOI: 10.5220/0008854400790088
M. Said, R. Antini, T. Taher, A. Lesbani
: Bentonite was pillarized by using Fe 3+ /Ti 4+ metal oxide ratio 2:1 and 1:2. The pillarization product was characterized by using XRD analysis and FT-IR spectrophotometer. XRD diffractogram showed that the optimal product was obtained at Fe 3+ /Ti 4+ ratio 2:1. At this ratio, basal spacing of bentonite layer is 15 Å while bentonite with ratio 1:2 has basal spacing 12.86 Å. Bentonite 2:1 ratio was applied on Congo red adsorption. The isotherm adsorption was calculated and followed Freundlich model having adsorption rate (k) 0.0008 (min -1 ) for Congo red and 0.00045 (min -1 ) for direct violet. The adsorption capacity (qe) of Congo red at 70 °C is 68 mol/g that larger than 51 mol/g for direct violet. The adsorption energy (E) of Congo red at 70°C is 4.90 kJ/mol also higher then direct violet with 1.01 kJ/mol. The enthalpy (ΔH) and entropy (ΔS) is decreased with increase of Congo red and direct violet concentration. The optimum pH was obtained at 3 whereas the maximum amount of Congo red adsorbed is 90.60 mg/L. Direct violet shows maximum amount of adsorption at pH 4 with 79.61 mg/L.
{"title":"Pillarization of Bentonite using Fe3+/Ti4+ and Its Application for Congo Red and Direct Violet Removal","authors":"M. Said, R. Antini, T. Taher, A. Lesbani","doi":"10.5220/0008854400790088","DOIUrl":"https://doi.org/10.5220/0008854400790088","url":null,"abstract":": Bentonite was pillarized by using Fe 3+ /Ti 4+ metal oxide ratio 2:1 and 1:2. The pillarization product was characterized by using XRD analysis and FT-IR spectrophotometer. XRD diffractogram showed that the optimal product was obtained at Fe 3+ /Ti 4+ ratio 2:1. At this ratio, basal spacing of bentonite layer is 15 Å while bentonite with ratio 1:2 has basal spacing 12.86 Å. Bentonite 2:1 ratio was applied on Congo red adsorption. The isotherm adsorption was calculated and followed Freundlich model having adsorption rate (k) 0.0008 (min -1 ) for Congo red and 0.00045 (min -1 ) for direct violet. The adsorption capacity (qe) of Congo red at 70 °C is 68 mol/g that larger than 51 mol/g for direct violet. The adsorption energy (E) of Congo red at 70°C is 4.90 kJ/mol also higher then direct violet with 1.01 kJ/mol. The enthalpy (ΔH) and entropy (ΔS) is decreased with increase of Congo red and direct violet concentration. The optimum pH was obtained at 3 whereas the maximum amount of Congo red adsorbed is 90.60 mg/L. Direct violet shows maximum amount of adsorption at pH 4 with 79.61 mg/L.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84986494","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}
Pub Date : 2019-01-01DOI: 10.5220/0009003203290334
Tamrin, E. Zaidar
: Research heve been done to find out the effect of variation moleculer weight polietylen glikoln 1000; 3000 and 6000 on manufacture semi interpenetrating polymer networks hidrogel from bacterial selulose with sytem fermentation using accetobacterial-xylinum in based coconut water. IPN hidrogel by polietilenglikol 6000 has more croslinks compared using peg 3000 and peg 1000. Analysis thermal hidrogel IPN using peg 6000 is 457,14 0 C, compared PEG 3000 is 252, 80 0 C and PEG 1000 is 249,30 0 C. semi-IPN hydrogel formed was characterized by, crosslink percentage, chemistry structural analysis using Fourier Transform Infrared (FT-IR) spectroscopy, water absorption test and thermal resistance using Differential Thermal Analysis (DTA). From the analysis, they showed Semi Interpenetrating Polymer Network Hydrogel with using PEG 6000 the highest crosslink percentage (64,3%) for PEG 3000 is 42.5 % and PEG 1000 is 15. 7 %. Characterization results of FTIR indicate the occurrence of crosslinking between Polyacrylic acid and MBA. This shown in existence of 1403 cm -1 and 1560 cm -1 (COO - ) and 3413 cm -1 (NH amine). Thermal analysis using Differential Thermal Analysis (DTA) shows thermal optimum thermal stability at the addition of Polietilengiikol 6000 to semi-IPN hydrogel which was completely degraded at 680 o C, reaction that occurs during the decomposition process is endothermic and exothermic reaction.
研究了分子量变化对聚乙二醇1000的影响;研究了以细菌纤维素为原料，在椰子水中利用醋酸菌木聚糖系统发酵制备半互穿聚合物网络水凝胶。与使用聚乙二醇3000和聚乙二醇1000相比，聚乙二醇6000的IPN水凝胶具有更多的交联。采用peg 6000制备的热凝胶IPN的温度为457,14℃，与peg 3000制备的温度为252,80℃和peg 1000制备的温度为244,30℃进行了对比。采用交联率、傅立叶变换红外(FT-IR)光谱化学结构分析、吸水率测试和差热分析(DTA)对制备的半IPN水凝胶进行了表征。通过分析，他们发现使用PEG 6000的半互穿聚合物网络水凝胶的交联率最高(64.3%)，PEG 3000的交联率为42.5%，PEG 1000的交联率为15%。7%。FTIR表征结果表明，聚丙烯酸与MBA之间存在交联反应。这表明存在1403 cm -1和1560 cm -1 (COO -)和3413 cm -1 (NH胺)。采用差热分析(DTA)方法对半ipn水凝胶进行了热稳定性分析，结果表明，在680℃下完全降解的半ipn水凝胶中加入聚烯六千醇时热稳定性最佳，分解过程中发生吸热和放热反应。
{"title":"Optimization of Polymer Networks using Variations in Moleculer Weight of Polyetilen Glycol in the Manufacture of Semi – IPN Hidrogels from Coconut Water Cellulose Bacteria","authors":"Tamrin, E. Zaidar","doi":"10.5220/0009003203290334","DOIUrl":"https://doi.org/10.5220/0009003203290334","url":null,"abstract":": Research heve been done to find out the effect of variation moleculer weight polietylen glikoln 1000; 3000 and 6000 on manufacture semi interpenetrating polymer networks hidrogel from bacterial selulose with sytem fermentation using accetobacterial-xylinum in based coconut water. IPN hidrogel by polietilenglikol 6000 has more croslinks compared using peg 3000 and peg 1000. Analysis thermal hidrogel IPN using peg 6000 is 457,14 0 C, compared PEG 3000 is 252, 80 0 C and PEG 1000 is 249,30 0 C. semi-IPN hydrogel formed was characterized by, crosslink percentage, chemistry structural analysis using Fourier Transform Infrared (FT-IR) spectroscopy, water absorption test and thermal resistance using Differential Thermal Analysis (DTA). From the analysis, they showed Semi Interpenetrating Polymer Network Hydrogel with using PEG 6000 the highest crosslink percentage (64,3%) for PEG 3000 is 42.5 % and PEG 1000 is 15. 7 %. Characterization results of FTIR indicate the occurrence of crosslinking between Polyacrylic acid and MBA. This shown in existence of 1403 cm -1 and 1560 cm -1 (COO - ) and 3413 cm -1 (NH amine). Thermal analysis using Differential Thermal Analysis (DTA) shows thermal optimum thermal stability at the addition of Polietilengiikol 6000 to semi-IPN hydrogel which was completely degraded at 680 o C, reaction that occurs during the decomposition process is endothermic and exothermic reaction.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75796390","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}
Pub Date : 2019-01-01DOI: 10.5220/0008932303050311
Rina Ridara, D. A. Nasution, B. Wirjosentono
: In this work, pulp cellulose (Cell) was prepared from Belangke bamboo ( gigantochloa pruriens ) by Craft delignification process. The AETAC/MA-modified Cellulose (AETAC/MA-g-Cell) was characterised using infrared spectroscopy (FTIR) for chemical structure, differential scanning calorimetry (DSC) for thermal properties and scanning electron microscopy (SEM) for morphological images. Results of FTIR spectra of the AETAC/MA-g-Cell after exhaustive Sokhlet extraction in n-hexane still showed stable absorption peak of AETAC/MA carbonyl group (>C=O) at 1705 cm -1 and disappearance of double bond absorption peak af acryloyl group (>C=C<) at 1630 cm -1 . These evidences indicated that the AETAC/MA modifiers have successfully bound into the cellulose, in which hydroxyl groups of the cellulose have esterified with maleic anhydride and bound with acryloyl groups of AETAC. Further data of DSC analysis of the modified cellulose showed slightly lower decomposition temperature of 300 o C when compared to that of fresh cellulose of 270-400 o C. Whereas SEM images of the modified cellulose also indicated rougher surface when compared to that of fresh cellulose fibres. The AETAC/MA-modified cellulose then may be utilised as antimicrobial materials for various cellulose products.
以贝朗克竹为原料，采用工艺脱木质素法制备了纸浆纤维素(Cell)。采用红外光谱(FTIR)、差示扫描量热法(DSC)和扫描电子显微镜(SEM)对AETAC/ ma改性纤维素(AETAC/MA-g-Cell)的化学结构进行了表征。AETAC/MA-g- cell在正己烷中彻底索氏萃取后的FTIR光谱显示，AETAC/MA羰基(>C= 0)在1705 cm -1处的吸收峰稳定，丙烯基(>C=C<)在1630 cm -1处的双键吸收峰消失。这些证据表明，AETAC/MA改性剂已经成功地结合到纤维素中，纤维素中的羟基与马来酸酐发生酯化反应，并与AETAC的丙烯基结合。进一步的DSC分析数据表明，改性纤维素的分解温度为300℃，略低于新鲜纤维素的270 ~ 400℃，而改性纤维素的SEM图像也表明，与新鲜纤维素纤维相比，改性纤维素的表面更粗糙。AETAC/ ma改性纤维素可作为各种纤维素制品的抗菌材料。
{"title":"Modification of Pulp Cellulose of Belangke Bamboo (Gigantochloa pruriens) using [2-(Acryloyloxy)Ethyl] Trimethyl Ammonium Chloride and Maleic Anhydride","authors":"Rina Ridara, D. A. Nasution, B. Wirjosentono","doi":"10.5220/0008932303050311","DOIUrl":"https://doi.org/10.5220/0008932303050311","url":null,"abstract":": In this work, pulp cellulose (Cell) was prepared from Belangke bamboo ( gigantochloa pruriens ) by Craft delignification process. The AETAC/MA-modified Cellulose (AETAC/MA-g-Cell) was characterised using infrared spectroscopy (FTIR) for chemical structure, differential scanning calorimetry (DSC) for thermal properties and scanning electron microscopy (SEM) for morphological images. Results of FTIR spectra of the AETAC/MA-g-Cell after exhaustive Sokhlet extraction in n-hexane still showed stable absorption peak of AETAC/MA carbonyl group (>C=O) at 1705 cm -1 and disappearance of double bond absorption peak af acryloyl group (>C=C<) at 1630 cm -1 . These evidences indicated that the AETAC/MA modifiers have successfully bound into the cellulose, in which hydroxyl groups of the cellulose have esterified with maleic anhydride and bound with acryloyl groups of AETAC. Further data of DSC analysis of the modified cellulose showed slightly lower decomposition temperature of 300 o C when compared to that of fresh cellulose of 270-400 o C. Whereas SEM images of the modified cellulose also indicated rougher surface when compared to that of fresh cellulose fibres. The AETAC/MA-modified cellulose then may be utilised as antimicrobial materials for various cellulose products.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78199232","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}
Pub Date : 2019-01-01DOI: 10.5220/0008854100630068
J. Tarigan, D. Barus, Nico Hot Asi Naibaho
Synthesis of carboxymethyl polysaccharide Arenga pinnata has been prepared through etherification of Arenga pinnata polysaccharide and monochloroacetate (MCA). Firstly the polysaccharide was extracted from Arenga pinnata endosperm with different toughness (soft and hard) followed by etherification with monochloroacetate using sodium hydroxide as a catalyst with variation of molar ratio MCA : NaOH of 0.50; 0.55; and 0.60 and ethanol 96% as solvent at temperature of 60 C for 10 hours in oven. The substitution degree was determined using titration method in which the Na-carboxymethyl was hydrolysis with HCl 2M in methanol 70% to form carboxymethyl polysaccharide. The yields of carboxymethyl polysaccharide were 90% and 83% for hard and soft, respectively. The substitution degree of carboxymethyl polysaccharide from soft Arenga pinnata endosperm was 1.600; 1.068 and 0.403 and from hard endosperm was 0.688; 0.467 and 0.202. The substitution degree of carboxymethyl polysaccharide was increased in the increasing of NaOH used which polysaccharide from Arenga pinnata endosperm soft has higher substitution degree than from the hard. The appearance stretching vibration of the carbonyl group (C=O) at a wavelength of 1730 cm-1 confirmed the formation of carboxymethyl polysaccharide. The morphology surface of carboxymethyl polysaccharide showed rough surface than Arenga pinnata polysaccharide revealed that the granule of polysaccharide have been changed.
{"title":"Synthesis of Carboxymethyl Polysaccharide from Arenga Pinnata Polysaccharide and Monochloroasetic","authors":"J. Tarigan, D. Barus, Nico Hot Asi Naibaho","doi":"10.5220/0008854100630068","DOIUrl":"https://doi.org/10.5220/0008854100630068","url":null,"abstract":"Synthesis of carboxymethyl polysaccharide Arenga pinnata has been prepared through etherification of Arenga pinnata polysaccharide and monochloroacetate (MCA). Firstly the polysaccharide was extracted from Arenga pinnata endosperm with different toughness (soft and hard) followed by etherification with monochloroacetate using sodium hydroxide as a catalyst with variation of molar ratio MCA : NaOH of 0.50; 0.55; and 0.60 and ethanol 96% as solvent at temperature of 60 C for 10 hours in oven. The substitution degree was determined using titration method in which the Na-carboxymethyl was hydrolysis with HCl 2M in methanol 70% to form carboxymethyl polysaccharide. The yields of carboxymethyl polysaccharide were 90% and 83% for hard and soft, respectively. The substitution degree of carboxymethyl polysaccharide from soft Arenga pinnata endosperm was 1.600; 1.068 and 0.403 and from hard endosperm was 0.688; 0.467 and 0.202. The substitution degree of carboxymethyl polysaccharide was increased in the increasing of NaOH used which polysaccharide from Arenga pinnata endosperm soft has higher substitution degree than from the hard. The appearance stretching vibration of the carbonyl group (C=O) at a wavelength of 1730 cm-1 confirmed the formation of carboxymethyl polysaccharide. The morphology surface of carboxymethyl polysaccharide showed rough surface than Arenga pinnata polysaccharide revealed that the granule of polysaccharide have been changed.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89154262","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}
Pub Date : 2019-01-01DOI: 10.5220/0008839400360038
H. Sihotang, R. Siburian, C. Simanjuntak, S. L. Raja, M. Supeno, Vivi Sukmawati, Z. Alfian
: Formation process of Graphene Nano Sheets (GNS) was described in this paper. The aims of this paper are to synthesize of GNS and to propose formation process of GNS base on magnesium (Mg) as a reductor agent. This research is an experiment laboratory research. The modification of Hummer’s method was chosen to generate GNS. Then, GNS was characterized with FTIR. The results data show that Mg may be used to reduce epoxide functional groups.
{"title":"Formation Process of Graphene Nano Sheets","authors":"H. Sihotang, R. Siburian, C. Simanjuntak, S. L. Raja, M. Supeno, Vivi Sukmawati, Z. Alfian","doi":"10.5220/0008839400360038","DOIUrl":"https://doi.org/10.5220/0008839400360038","url":null,"abstract":": Formation process of Graphene Nano Sheets (GNS) was described in this paper. The aims of this paper are to synthesize of GNS and to propose formation process of GNS base on magnesium (Mg) as a reductor agent. This research is an experiment laboratory research. The modification of Hummer’s method was chosen to generate GNS. Then, GNS was characterized with FTIR. The results data show that Mg may be used to reduce epoxide functional groups.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84184681","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}
Pub Date : 2019-01-01DOI: 10.5220/0008921702740279
Andriayani, Marpongahtun, Y. Muis
: Synthesis of mesoporous silica material was carried out using ricinoleate ester as a template. Mesoporous silica products were characterized using FT-IR, XRD, SEM and nitrogen adsorption. Mesoporous silica material was impregnated with magnesium nitrate, impregnation products were characterized using FT-IR, XRD, SEM and BET analysis. MgO impregnated silica mesoporous is applied as a catalyst in the reaction of esterification of castor oil to ricinoleate ester.
{"title":"Magnesium Impregnated Silica Mesoporous Prepared using Ester Ricinoleic as Template for the Esterification","authors":"Andriayani, Marpongahtun, Y. Muis","doi":"10.5220/0008921702740279","DOIUrl":"https://doi.org/10.5220/0008921702740279","url":null,"abstract":": Synthesis of mesoporous silica material was carried out using ricinoleate ester as a template. Mesoporous silica products were characterized using FT-IR, XRD, SEM and nitrogen adsorption. Mesoporous silica material was impregnated with magnesium nitrate, impregnation products were characterized using FT-IR, XRD, SEM and BET analysis. MgO impregnated silica mesoporous is applied as a catalyst in the reaction of esterification of castor oil to ricinoleate ester.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78497378","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}
Pub Date : 2019-01-01DOI: 10.5220/0008864001650173
A. Siregar, S. Gea, Nora Indriani
: Research on mixing of limestone with the addition of latex in making composites have been done. This study uses limestone originating from Sidikalang where crushed limestone using ball mill then calcined at 900 o C for 2 hours then tested using XRD Pan Analytical X’pert Powder PW 30/40 to determine the presence of CaO compounds with the greatest intensity of 3036 at θ =37.3556 and particle size tested using PSA Shimadzu SALD-2300 is obtained an average of 731.7 nm. Then limestone powder (LSP) is used as a filler with various variations on latex composites. Analyzing of the morphology using SEM FEI Inspect-S50 can be seen from the photo that limestone powder can be evenly distributed on compsites 800 g of latex + 200 g of limestone powder while in the next variation the limestone powder is not evenly distributed because the addition of the filler increases but the addition of the matrix decreases. The mechanical properties of latex composites with limestone powder were tested using ASTM D-412 where optimum tensile strength was found in 800 g of latex + 200 g of limestone powder is 1.279 MPa and optimum elongation of 1000 g latex is 4.328 mm/mm. Thermal properties were tested using TGA ASTM E1131 obtained by decomposition thermal at 300-400 o C because in the sample 1000 g of latex has thermal stability at 377.39 o C and in the sample 800 g of latex + 200 g of limestone powder has thermal stability at 378.21 o C.
对石灰石与乳胶的掺合制备复合材料进行了研究。本研究使用的石灰石来自Sidikalang，石灰石经过球磨机粉碎，900℃下煅烧2小时，然后使用XRD Pan Analytical X 'pert Powder PW 30/40进行测试，以确定CaO化合物的存在，其最大强度为3036，θ =37.3556，使用PSA Shimadzu SALD-2300测试的粒度平均为731.7 nm。然后用石灰石粉末(LSP)作为填料，在乳胶复合材料上进行各种变化。利用SEM FEI Inspect-S50对其形貌进行分析，从照片中可以看出，当乳胶量为800 g +石灰石粉为200 g时，石灰石粉在复合材料上的分布较为均匀，而下一个变化中，由于填料的添加量增加而基体的添加量减少，石灰石粉的分布并不均匀。采用ASTM D-412测试了石灰石粉乳胶复合材料的力学性能，其中800g乳胶+ 200g石灰石粉的最佳抗拉强度为1.279 MPa, 1000g乳胶的最佳伸长率为4.328 mm/mm。热性能测试使用在300-400℃分解热得到的TGA ASTM E1131，因为样品中1000g乳胶在377.39℃时具有热稳定性，样品中800g乳胶+ 200g石灰石粉末在378.21℃时具有热稳定性。
{"title":"Making Composites from Mixing Limestone with Addition of Latex","authors":"A. Siregar, S. Gea, Nora Indriani","doi":"10.5220/0008864001650173","DOIUrl":"https://doi.org/10.5220/0008864001650173","url":null,"abstract":": Research on mixing of limestone with the addition of latex in making composites have been done. This study uses limestone originating from Sidikalang where crushed limestone using ball mill then calcined at 900 o C for 2 hours then tested using XRD Pan Analytical X’pert Powder PW 30/40 to determine the presence of CaO compounds with the greatest intensity of 3036 at θ =37.3556 and particle size tested using PSA Shimadzu SALD-2300 is obtained an average of 731.7 nm. Then limestone powder (LSP) is used as a filler with various variations on latex composites. Analyzing of the morphology using SEM FEI Inspect-S50 can be seen from the photo that limestone powder can be evenly distributed on compsites 800 g of latex + 200 g of limestone powder while in the next variation the limestone powder is not evenly distributed because the addition of the filler increases but the addition of the matrix decreases. The mechanical properties of latex composites with limestone powder were tested using ASTM D-412 where optimum tensile strength was found in 800 g of latex + 200 g of limestone powder is 1.279 MPa and optimum elongation of 1000 g latex is 4.328 mm/mm. Thermal properties were tested using TGA ASTM E1131 obtained by decomposition thermal at 300-400 o C because in the sample 1000 g of latex has thermal stability at 377.39 o C and in the sample 800 g of latex + 200 g of limestone powder has thermal stability at 378.21 o C.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86365558","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}
Pub Date : 2019-01-01DOI: 10.5220/0008857201210123
Yeni Afriani, Zanira Urfa Harahap, Era Fazira Matondang, C. F. Zuhra
: Cacao pod contain 31.25% cellulose. It can be used for CMC (carboxymethyl cellulose) with four phases involving alkalization, carboxymethylation, neutralization and drainage were used to making of CMC. The first proses using NaOH. Media such as methanol, propanol, sodium monochloroacetate, and water. The neutralization process, acetic acid was added. And for the last step it was heating in the oven. The result showed that contents of CMC of NaCl 87-91%, viscosity 5.5 cP, pH 8, and DS value is 0.872. On the other hand, acetic acid did not give significant effect for colors of CMC.
{"title":"Cocoa Pod (Teobroma cacao L.) Utilization as Material for CMC","authors":"Yeni Afriani, Zanira Urfa Harahap, Era Fazira Matondang, C. F. Zuhra","doi":"10.5220/0008857201210123","DOIUrl":"https://doi.org/10.5220/0008857201210123","url":null,"abstract":": Cacao pod contain 31.25% cellulose. It can be used for CMC (carboxymethyl cellulose) with four phases involving alkalization, carboxymethylation, neutralization and drainage were used to making of CMC. The first proses using NaOH. Media such as methanol, propanol, sodium monochloroacetate, and water. The neutralization process, acetic acid was added. And for the last step it was heating in the oven. The result showed that contents of CMC of NaCl 87-91%, viscosity 5.5 cP, pH 8, and DS value is 0.872. On the other hand, acetic acid did not give significant effect for colors of CMC.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75834546","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}
Pub Date : 2019-01-01DOI: 10.5220/0008865701820186
E. Zaidar, Rumondang Bulan, F. Sebayang, M. Z. E. Sinaga, Rina Latipah
Determination of protein, fat and carbohydrates of brownies with variations of purple sweet potato flour comparison with wheat flour. Brownies flour made with variation ratio of purple sweet potato flour with wheat flour that was (80:20), (60; 40), (40:60) and (20:80) with a total weight of 100 grams of flour. The protein content was determined by the Kjeldahl method, fFat content was determined by continuous extraction, carbohydrate content was determined by counting aliquots weight reduction as the results of moisture, ash, protein and fat. The result showed the highest protein content in variation (40:60) which is 7.09% and the lowest (80:20), which is 3.23%. The more purple sweet potato flour added the protein in brownies was increase. The highest fat content in variation (20:80) is 18.60% and the lowest (80:20) and (60: 40), which is 0.63%. The more the flour was added the fat content of the brownies was increase. The highest levels of carbohydrates obtained from the reduction of protein, fat, water and ash. Furthermore, the antioxidant test on purple sweet potato flour which has antioxidants that are very good for consumption which have IC50: 173.14 mg / L.
{"title":"Effect of Comparative Flour of Purple Sweet Potato (Ipomea batatas) and Wheat Flour of Nutrition Value on Brownies","authors":"E. Zaidar, Rumondang Bulan, F. Sebayang, M. Z. E. Sinaga, Rina Latipah","doi":"10.5220/0008865701820186","DOIUrl":"https://doi.org/10.5220/0008865701820186","url":null,"abstract":"Determination of protein, fat and carbohydrates of brownies with variations of purple sweet potato flour comparison with wheat flour. Brownies flour made with variation ratio of purple sweet potato flour with wheat flour that was (80:20), (60; 40), (40:60) and (20:80) with a total weight of 100 grams of flour. The protein content was determined by the Kjeldahl method, fFat content was determined by continuous extraction, carbohydrate content was determined by counting aliquots weight reduction as the results of moisture, ash, protein and fat. The result showed the highest protein content in variation (40:60) which is 7.09% and the lowest (80:20), which is 3.23%. The more purple sweet potato flour added the protein in brownies was increase. The highest fat content in variation (20:80) is 18.60% and the lowest (80:20) and (60: 40), which is 0.63%. The more the flour was added the fat content of the brownies was increase. The highest levels of carbohydrates obtained from the reduction of protein, fat, water and ash. Furthermore, the antioxidant test on purple sweet potato flour which has antioxidants that are very good for consumption which have IC50: 173.14 mg / L.","PeriodicalId":20533,"journal":{"name":"Proceedings of the 1st International Conference on Chemical Science and Technology Innovation","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84591169","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}
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