Diethylene glycol solutions viscosity

Brauer (B14), 1956 Extensive experimental study of film flow outside tube 4.3X130 cm. films of water, water + surfactant, aqueous diethylene glycol solutions, kinematic viscosity 0.9-12.7 cs. Nr = 20-1800. Data on film thicknesses, waves, maximum and minimum thicknesses, characteristic Reynolds numbers of flow, onset of rippling and turbulence, wall shear stress, etc. 

Figure 5.3B Viscosities of aqueous diethylene glycol solutions. (Courtesy of John M. Campbell.)...

Fig. 4. Monomer/Cross-linker Viscosities and Solution Viscosities of Urethane Polymers in 1,6HDDA or NVP as a Function of Polymer Concentration (PETA -pentaerythritol triacrylate, TMPTA - trimethylol propane triacrylate, NPGDG - neopentyl glycol diacrylate, DEGDA - diethylene glycol diacrylate, QM657 - Rohm and Haas - dicyclo- pentadiene modified acrylate, IBA - isobornyl acrylate, 1,6HDDA - 1,6 hexanediol diacrylate, NVP - N-vinylpyrrolidone, 2EHA-2-ethylhexyl acrylate)...

Viscosities of liquid resins are typically determined with a Cannon-Fenske capillary viscometer at 25°C, or a Brookfield viscometer. The viscosity depends on the temperature, as illustrated in Figure 2. Viscosities of soUd epoxy resins are determined in butyl carbitol (diethylene glycol monobutyl ether) solutions (40% solids content) and by comparison with standard bubble tubes (Gardner-Holdt bubble viscosity). The Gardner color of the same resin solution is determined by comparison with a standard color disk. Recently, data have been reported for solid epoxy resins using the ICI Cone and Plate viscometers, which are much more time-efficient because they do not require sample dissolution. 

Examples of shear-dependent viscosity, (a) Red blood cells (normal human, Hb 37% Mills et al., 1980). (b) A 0.35 wt % aqueous solution of xanthan gum, a stiff biopolymer (Whitcomb and Macosko, 1978). (c) A commercial yogurt (deKee et al., 1980). (d) Polystyrene-ethylacrylate latex spheres Dw 0.5 m at various concentrations in diethylene glycol, r = 23° C (Uun, 1988). The lines in (a)-using models described in this chapter. 

Figure 11 21. Viscosity of diethylene and triethylene glycol solutions. Data of Union Carbide Corp. (1971)...

The key solution polymers (resins) used in printing ink are styrene or rosin based. Styrene-a-methylstyrene monomer and acid functional co-monomers (i.e. acrylic or methacrylic acid) comprise the bulk of styrene acrylic solution vehides used in printing ink. Rosin acid reacted with fumaric add gives a tri-functional adduct . The adduct is partially esterified with polyols such as pentaerythritol, glycerin, diethylene glycol, etc. to achieve a range of addity, viscosity, Tg and molecular weight. 

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