The importance of crystal morphology on the viscosity of concentrated suspensions of kaolins

Jun, Yuan; Murray, Haydn H.

doi:10.1016/s0169-1317(97)00006-9

Cited by 41 publications

(12 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ever-increasing use of clay minerals in pelotherapeutic applications is due to the versatility and peculiarity of their physical and chemical properties and the suitability of their colloidal and thermal behaviors [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Pioneer studies [16,17] indicated that rheology is mainly controlled by the morphology and aggregation state of solid particles, as well as the nature and strength of the predominant interparticle electrostatic forces (i.e., as predicted by zeta potential measurements), which are fundamental parameters to qualify the properties of clayey dispersions, such as spreading qualities, adhesion to skin and removal capacities [16,[18][19][20][21][22], and these are affected by pH, concentration, and relative dimensions of solids [23].…”

Section: Introductionmentioning

confidence: 99%

Colloidal and Thermal Behaviors of Some Venezuelan Kaolin Pastes for Therapeutic Applications

et al. 2019

View full text Add to dashboard Cite

This work contributes to the knowledge of colloidal and thermal properties of some important primary-originated kaolin deposits from Bolivar State, Venezuela, and their possible use as semisolid formulations in medicinal muds for topical applications. Eight selected high purity kaolin samples were characterized. Rheological and thermal properties were correlated to physico-chemical characteristics of the clay suspensions (pH, Ca2+, and Mg2+ cation desorption and surface charge). Most of the studied kaolin pastes showed adequate viscosities, acceptable skin safe pH, and good thermal properties for pelotherapeutic uses. Three of the studied samples, in particular, showed very high kaolinite purities (>92% kaolinite), elevated viscosities (>1 Pa·s), and good thermal and pH performances for topical application.

show abstract

Section: Introductionmentioning

confidence: 99%

Colloidal and Thermal Behaviors of Some Venezuelan Kaolin Pastes for Therapeutic Applications

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The edge/face charge heterogeneities born by particles of certain peculiar shapes (especially platelet-shaped particles) could grant them the ability to disrupt the three dimensional networks formed by other particles by agglomeration, and thus reduce the viscosity of suspensions containing such type of objects. This phenomenon was observed for kaolinite-halloysite [54] and kaolinite-mica [55] suspensions. The rheology of the TiO 2 -Y 2 O 3 suspension (15 at% Y) was also assessed to study the effects of Darvan CN on the viscosity (Fig.…”

Section: Dispersion Of Tio 2 -Y 2 O 3 Mixed Suspensionmentioning

confidence: 56%

Preparation and co-dispersion of TiO2-Y2O3 suspensions through the study of their rheological and electrokinetic properties

Lumia

Ramond

Pagnoux

et al. 2019

Ceramics International

View full text Add to dashboard Cite

The development of Generation IV sodium-cooled fast reactors (SFR) is currently studied by several countries. These new type of reactors are intended to use new types of UO 2-PuO 2 nuclear fuels. In order to produce them, new innovative liquid routes are investigated. Among these liquid route processes, some involve at first the preparation of high solid content waterbased suspensions. This key step needs to be investigated in order to obtain highly and easily processable suspensions, featuring optimal viscosity and dispersion state. The structures and properties for all intermediate and final products involved in such ceramic manufacturing processes are heavily affected by these suspension characteristics. Therefore, they are critical to ensure a compliant final product (i.e. fuel pellets) with the required density, homogeneity, mechanical strength and absence of defects. In this scope, preparation process of such suspensions was developed by the use of UO 2 and PuO 2 surrogating (i.e. mimicking) powders, TiO 2 and Y 2 O 3 respectively.

show abstract

“…В качестве поверхностно-активных модификаторов используются полиакрилат аммония (анионный) и сополимер акрил-силоксанового типа (неионогенный). Эти модификаторы были выбраны исходя из их сравнитель-ной доступности и утвердившейся практики использования в лакокрасочной промышленности [6] в отличии, например от четвертичных аммониевых оснований [7]. Для исследования свойств наполнителей и их водных систем были использованы электронная микроскопия (микроскоп РЭМ SELMI 106), реометрия (вискозиметр Rheotest 2), сорбционные измерения (метод БЭТ, адсорбент -аргон), метод Дерягина для определения геометрической удельной поверхности (прибор Т-3).…”

Section: объекты и методы исследованияunclassified

Rheological behavor of kaoline water suspensions in presence of surfactants

Сикорский¹,

Миронюк²,

Свидерский³

2013

TAPR

View full text Add to dashboard Cite

В работе рассмотрены особенности реологического поведения водных суспензий отечественных каолинов разных месторождений, в присутствии поверхностно-активнхых веществ анионного и неоногенного типов. Опеределено, что прочность коагуляционной структуры при введении поверхностно-активных веществ уменьшается, причем более существенно для каолина с более развитой поверхностью.

show abstract

The importance of crystal morphology on the viscosity of concentrated suspensions of kaolins

Cited by 41 publications

References 6 publications

Colloidal and Thermal Behaviors of Some Venezuelan Kaolin Pastes for Therapeutic Applications

Colloidal and Thermal Behaviors of Some Venezuelan Kaolin Pastes for Therapeutic Applications

Preparation and co-dispersion of TiO2-Y2O3 suspensions through the study of their rheological and electrokinetic properties

Rheological behavor of kaoline water suspensions in presence of surfactants

Contact Info

Product

Resources

About