Die Viskositäts-Konzentrationsabhängigkeit in konzentrierter Lösung, V

Houwink, R.; Klaassens, K. H.

doi:10.1007/bf01503604

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C 2+a 2c 3~-a 3c 4 [44]1

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1942

1982

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Cited by 5 publications

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“…Later Houwin/c and Klaassens (177) returned to the simple Pap~cow-formula, but introduced three concentration ranges, each with other k and n values. This seems unpractical.…”

Section: C 2+a 2c 3~-a 3c 4 [44]mentioning

confidence: 99%

Relative viscosity and concentration

Rutgers¹

1962

Rheol Acta

268

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“…Later Houwin/c and Klaassens (177) returned to the simple Pap~cow-formula, but introduced three concentration ranges, each with other k and n values. This seems unpractical.…”

Section: C 2+a 2c 3~-a 3c 4 [44]mentioning

confidence: 99%

Relative viscosity and concentration

Rutgers¹

1962

Rheol Acta

268

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The viscosity of suspensions of spherical particles. (The fundamental η‐c and φ relations)

Bruijn

1942

Recl. Trav. Chim. Pays‐Bas

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E i n s t e i n ' s theory forms the sole basis for a theoretical consideration of the factors governing the viscosity of a suspension.T h e practical significance of this theory is however only very relative, since E i n s t e i n ' s theory is only valid for very dilute suspensions ( t o concentrations of a few percents by volume). while in practice suspensions of medium to fairly high concentration are usually dealt with. I. It was found possihlc to obtain theorctically a (1-c relation for il suspensioii of spherical particles which is in good agreement with the experimental results recently obtained by E i I c I s with asphalt emulsions. T h e relation derivcd by us is found to he valid u p to high concentrations. T h e fluidity relation is as fo1low.z 2.T h e physical concept upon which the f/--,' rchtion ohtained is hascd may he suminnrizrd iis follows: a ) Duc to the fall in velocity in the liquid ii suspendcd particle takes on a rotiitiiiy mot:on. To this rotating motioii corresponds a n cxtra motion ot the liquid. T h e lattzr may now he considrred ,IS thc cause of ill1 encrgy dissipirtion I E I n x t c I n )or iis thc C~I U S C of a fiow of liquid .it the wiills enclosing thr flc~winq suspeiiwm. in ii direction opposite t o that of thr main flow. iind thus ohscrv,il,lc $11 ,I rcl;itively yrc-iit distiiricr froin the suspendcd p;irticlc IB II r g e r s). Occuirriicc of th: tcrin -2.5 ,.

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