D. M. Iceri, J. L. Biazussi, C. Geest, R. Thompson, M. Castro
{"title":"卡泊尔和三乙醇胺浓度对水溶液粘塑性性能的影响","authors":"D. M. Iceri, J. L. Biazussi, C. Geest, R. Thompson, M. Castro","doi":"10.11159/htff22.166","DOIUrl":null,"url":null,"abstract":"Materials with viscoplastic characteristics have being widely studied due to their applicability in industries, but also because of their common presence in nature. Fluids with such characteristic can be modelled by the equation known as Herschel-Bulkley. This type of fluid has a yield stress property, which is extremely important to characterize it. Carbopol solution is the most common fluid used for experimental studies involving this type of fluid. However, the Carbopol solution needs a neutralizing agent, which acts as a pH regulator, prevents the formation of fungus, but it also affects the yield stress. In the present work, measurements of the yield stress from flow curve tests, performed in a rheometer, were made for different combinations of Carbopol and Triethanolamine (neutralizing agent) concentrations. The yield stress increased with the increment in the concentration of both, Carbopol and Triethanolamine (TEA), in addition, it was observed that TEA concentrations must be greater than 500 ppm to avoid the formation of fungi and less than 700 ppm to obtain a homogeneous solution.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Analysis of Carbopol And Triethanolamine Concentration in The Viscoplastic Properties of Aqueous Solution\",\"authors\":\"D. M. Iceri, J. L. Biazussi, C. Geest, R. Thompson, M. Castro\",\"doi\":\"10.11159/htff22.166\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Materials with viscoplastic characteristics have being widely studied due to their applicability in industries, but also because of their common presence in nature. Fluids with such characteristic can be modelled by the equation known as Herschel-Bulkley. This type of fluid has a yield stress property, which is extremely important to characterize it. Carbopol solution is the most common fluid used for experimental studies involving this type of fluid. However, the Carbopol solution needs a neutralizing agent, which acts as a pH regulator, prevents the formation of fungus, but it also affects the yield stress. In the present work, measurements of the yield stress from flow curve tests, performed in a rheometer, were made for different combinations of Carbopol and Triethanolamine (neutralizing agent) concentrations. The yield stress increased with the increment in the concentration of both, Carbopol and Triethanolamine (TEA), in addition, it was observed that TEA concentrations must be greater than 500 ppm to avoid the formation of fungi and less than 700 ppm to obtain a homogeneous solution.\",\"PeriodicalId\":385356,\"journal\":{\"name\":\"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.11159/htff22.166\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11159/htff22.166","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Analysis of Carbopol And Triethanolamine Concentration in The Viscoplastic Properties of Aqueous Solution
Materials with viscoplastic characteristics have being widely studied due to their applicability in industries, but also because of their common presence in nature. Fluids with such characteristic can be modelled by the equation known as Herschel-Bulkley. This type of fluid has a yield stress property, which is extremely important to characterize it. Carbopol solution is the most common fluid used for experimental studies involving this type of fluid. However, the Carbopol solution needs a neutralizing agent, which acts as a pH regulator, prevents the formation of fungus, but it also affects the yield stress. In the present work, measurements of the yield stress from flow curve tests, performed in a rheometer, were made for different combinations of Carbopol and Triethanolamine (neutralizing agent) concentrations. The yield stress increased with the increment in the concentration of both, Carbopol and Triethanolamine (TEA), in addition, it was observed that TEA concentrations must be greater than 500 ppm to avoid the formation of fungi and less than 700 ppm to obtain a homogeneous solution.