{"title":"羧甲基纤维素溶液对拉脱石分散体流变性能的影响","authors":"Ingri Julieth Mancilla Corzo, Jéssica Heline Lopes da Fonsêca, Marcos Akira d’Ávila","doi":"10.1007/s00397-023-01401-3","DOIUrl":null,"url":null,"abstract":"<div><p>Rheological analysis is an important tool to \ninvestigate the structural characteristics of materials widely used in the biomedical field, such as polymer solutions, colloids, and hydrogels. In this work, we studied the rheological properties of a colloidal system composed of carboxymethyl cellulose (CMC) and Laponite, both biocompatible materials. Rheological properties of CMC/Laponite aqueous dispersions are influenced by electrostatic interactions and hydrogen bonds between the silanol (Si–O) groups of Laponite and hydroxyl (-OH) of CMC. It was found that the effect of Laponite rheological behavior is strongly affected by CMC concentration, resulting in weak or strong gels. Adding CMC reinforces the blended network, increasing the storage <span>\\(\\left({G}^{^{\\prime}}\\right)\\)</span> and loss <span>\\(\\left(G''\\right)\\)</span> moduli, as well as viscosity. CMC/Laponite gels presented strong shear-thinning and thixotropy due to structural rearrangements when subjected to shear stresses. Moreover, time sweep tests revealed that adding CMC inhibited Laponite aging.</p><h3>Graphical Abstract</h3>\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\n </div>","PeriodicalId":755,"journal":{"name":"Rheologica Acta","volume":"62 7-8","pages":"393 - 404"},"PeriodicalIF":2.3000,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Influence of carboxymethyl cellulose solutions on rheological properties of Laponite dispersions\",\"authors\":\"Ingri Julieth Mancilla Corzo, Jéssica Heline Lopes da Fonsêca, Marcos Akira d’Ávila\",\"doi\":\"10.1007/s00397-023-01401-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Rheological analysis is an important tool to \\ninvestigate the structural characteristics of materials widely used in the biomedical field, such as polymer solutions, colloids, and hydrogels. In this work, we studied the rheological properties of a colloidal system composed of carboxymethyl cellulose (CMC) and Laponite, both biocompatible materials. Rheological properties of CMC/Laponite aqueous dispersions are influenced by electrostatic interactions and hydrogen bonds between the silanol (Si–O) groups of Laponite and hydroxyl (-OH) of CMC. It was found that the effect of Laponite rheological behavior is strongly affected by CMC concentration, resulting in weak or strong gels. Adding CMC reinforces the blended network, increasing the storage <span>\\\\(\\\\left({G}^{^{\\\\prime}}\\\\right)\\\\)</span> and loss <span>\\\\(\\\\left(G''\\\\right)\\\\)</span> moduli, as well as viscosity. CMC/Laponite gels presented strong shear-thinning and thixotropy due to structural rearrangements when subjected to shear stresses. Moreover, time sweep tests revealed that adding CMC inhibited Laponite aging.</p><h3>Graphical Abstract</h3>\\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\\n </div>\",\"PeriodicalId\":755,\"journal\":{\"name\":\"Rheologica Acta\",\"volume\":\"62 7-8\",\"pages\":\"393 - 404\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2023-06-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rheologica Acta\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00397-023-01401-3\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rheologica Acta","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s00397-023-01401-3","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MECHANICS","Score":null,"Total":0}
Influence of carboxymethyl cellulose solutions on rheological properties of Laponite dispersions
Rheological analysis is an important tool to
investigate the structural characteristics of materials widely used in the biomedical field, such as polymer solutions, colloids, and hydrogels. In this work, we studied the rheological properties of a colloidal system composed of carboxymethyl cellulose (CMC) and Laponite, both biocompatible materials. Rheological properties of CMC/Laponite aqueous dispersions are influenced by electrostatic interactions and hydrogen bonds between the silanol (Si–O) groups of Laponite and hydroxyl (-OH) of CMC. It was found that the effect of Laponite rheological behavior is strongly affected by CMC concentration, resulting in weak or strong gels. Adding CMC reinforces the blended network, increasing the storage \(\left({G}^{^{\prime}}\right)\) and loss \(\left(G''\right)\) moduli, as well as viscosity. CMC/Laponite gels presented strong shear-thinning and thixotropy due to structural rearrangements when subjected to shear stresses. Moreover, time sweep tests revealed that adding CMC inhibited Laponite aging.
期刊介绍：
"Rheologica Acta is the official journal of The European Society of Rheology. The aim of the journal is to advance the science of rheology, by publishing high quality peer reviewed articles, invited reviews and peer reviewed short communications.
The Scope of Rheologica Acta includes:
- Advances in rheometrical and rheo-physical techniques, rheo-optics, microrheology
- Rheology of soft matter systems, including polymer melts and solutions, colloidal dispersions, cement, ceramics, glasses, gels, emulsions, surfactant systems, liquid crystals, biomaterials and food.
- Rheology of Solids, chemo-rheology
- Electro and magnetorheology
- Theory of rheology
- Non-Newtonian fluid mechanics, complex fluids in microfluidic devices and flow instabilities
- Interfacial rheology
Rheologica Acta aims to publish papers which represent a substantial advance in the field, mere data reports or incremental work will not be considered. Priority will be given to papers that are methodological in nature and are beneficial to a wide range of material classes. It should also be noted that the list of topics given above is meant to be representative, not exhaustive. The editors welcome feedback on the journal and suggestions for reviews and comments."
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