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Silica hydrophilic

Solvent Swelling % Hydrophobic Silica Hydrophilic Silica ... [Pg.454]

The aim of this paper is to demonstrate that, depending on the type of silica (hydrophilic or hydrophobic), different kinds of colloidal interaction forces are effective, to show how these forces are influenced by the composition of the liquid matrix, and finally to elucidate the influence of the colloidal forces on the rheological properties of silica-resin dispersions. For this purpose, experimental results obtained from steady-shear and dynamic rheological experiments together with theoretical calculations will be presented. [Pg.903]

Porous glass Amorphous silica Hydrophilic, cation exchanger, Br0nsted acid sites... [Pg.64]

Silica Hydrophilic Fluorescent imaging MRI and drug delivery [203]... [Pg.285]

The results of our rheological study demonstrate that interactions between resin molecules and fumed silica particles significantly influence the network stability and its formation. In order to get a deeper understanding of the nature of such interactions a C CPMAS study at different cross -polarization times Xcp from 0.5 to 8 ms has been performed. At short Xcp spectra intensities are enhanced by C resonances of the least mobile chain fragments. This study includes two different fumed silicas, hydrophilic Wacker HDK N20 and fully silylated Wacker HDK H18, with an unsaturated polyester resin Palatal P4 and a vinyl ester resin Atlac 590, respectively. Figure 6 depicts the C CPMAS spectra of N20 and H18, respectively, in Palatal P4/35 % styrene at... [Pg.759]

Figure 19.8 Influence of the nature of the silica surface on the release of [P4444][lbu] at 20% loading in PBS (pH 7.4) non-pre-calcined silica (hydrophilic silica red) and precalcined silica (hydrophobic silica blue). Figure 19.8 Influence of the nature of the silica surface on the release of [P4444][lbu] at 20% loading in PBS (pH 7.4) non-pre-calcined silica (hydrophilic silica red) and precalcined silica (hydrophobic silica blue).
Silica (hydrophilic) Very fast drug release (up to five times faster as standard dosage form) Immediately acting drug dosage forms... [Pg.715]

Preparation of C-18 silica for reversed-phase extractions using SPE tubes. The process changes polar silica (hydrophilic material) to nonpolar silica (hydrophobic material). [Pg.722]

Name(s) silica gel, micronized amorphous silica, precipitated silica, hydrophilic fume silica... [Pg.14]

Name(s) silica gel, micronized amorphous silica, precipitated silica, hydrophilic fimie silica CAS 63231-67-4 (silica gel) 112926-00-8 (gel precipitated) 112945-86-9 (fume silica)... [Pg.12]

See other pages where Silica hydrophilic is mentioned: [Pg.42]    [Pg.199]    [Pg.134]    [Pg.269]    [Pg.275]    [Pg.21]    [Pg.172]    [Pg.145]    [Pg.151]    [Pg.889]    [Pg.102]    [Pg.266]    [Pg.241]    [Pg.332]    [Pg.332]   
See also in sourсe #XX -- [ Pg.160 ]

See also in sourсe #XX -- [ Pg.146 ]



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