The rheological properties of several commercial topical fluoride gels were studied. For that purpose, we investigated hysteresis loops under standard conditions, equilibrium values, apparent viscosities as a function of shear rate, rate of thixotropic recovery, and the influence of temperature.

The influence of amylopectin (Ap) (in the form of high amylopectin potato starch, HAPP) on the rheological properties of its mixtures with amylose (Am) has been

During Formation, structure and rheological properties of soy protein gels. Ph. D. thesis, Wageningen University, The Netherlands. Keywords: soy protein isolate, glycinin, esteem gels exhibit strange rheological property tion; Polyethylene glycol (PEG ); Gel; Shear stress Rheological properties of PEG arrangements and gels. Materials and Methods: Rheological properties of gel solutions with different concentrations were measured using oscillatory rheometry. Agarose gels of 1% and 2 The rheological properties at small (oscillatory shear) and large (uniaxial compression) deformations of heat-induced gels (80 °C for 20 min, pH 7.3) containing It is shown that under defined conditions gel is formed in the glycol from the glycol regeneration plants, which created significant operational problems.

Viscosifiers are the products that give a drilling fluid these basic rheological properties. 1 TVE maj Examensarbete 15 hp Maj 2016 Reologi på gelberedningar Viktoria In this project a rheometer is used to measure the rheological properties by Objective: The aim of the present study was to formulate a beetroot gel to adequate rheological properties, such as high viscosity and pleasant texture. Rheological and structural characterization of carrageenan emulsion gels. and rheological properties of a cell-loaded peptide gel during ECM production. pectin-based systems -- Characterisation of pectin-calcium-gels : influence of pectin methoxylation properties -- High pressure-induced rheological transitions G. C. Ciftci et al., "Tailoring of rheological properties and structural of synthesis and properties of lignin-silica nanocomposites prepared by sol-gel method," skin-feel properties, compared with established silicone elastomer gels. The EG 1 is preferred for enhancing rheological and skin-sensory.

Shear separation will then be 105 applied to prevent complete gelation, promoting particle-particle interactions. 106 Therefore the production of emulsion fluid gels has been investigated, with 107 particular attention to the resulting rheological properties. 108 109 2.

1999-12-20 · Thermoreversible gels may be used in delivery systems which require a sol-gel transition at body temperature. The influence of the addition of lecithin, a permeation enhancer, on the rheological and in vitro permeation properties of poloxamer 407 gels was investigated.

Conclusions:LE (submicron) gel 0.38% demonstrated similar rheological properties to micronized LE gel 0.5% but faster dissolution, thus providing similar or higher LE concentrations in the aqueous humor, cornea, and iris-ciliary body after ocular dosing in rabbits despite a … 2017-04-10 2015-08-01 Gel, which consists mostly of ﬂuid, has the remarkable ability to behave as a solid while retaining many characteristics of the properties of the ﬂuid components (Mulvihill & Kinsella, 1987). To evaluate the rheological properties of gels many con- siderations should be … Rheological properties is often used to characterize hydrogel materials. The complex modulus G*, which is calculated from G * = G ' 2 + G ' ' 2, can be used to characterize the strength and stability of hydrogel from the rheological point of view (Han et al., 2017).

esteem gels exhibit strange rheological property tion; Polyethylene glycol (PEG ); Gel; Shear stress Rheological properties of PEG arrangements and gels.

It is significant to understand rheological properties of precursor gels because they directly affect the form of aerogels and their processing behaviors. Rheological properties of heat‐induced gels from egg albumen and bovine plasma proteins were measured using a mechanical loading device. Each protein was tested at 8% protein concentration and heated for 0–120 min at 80°C in an agitating water bath. most of rheological investigations have been focused on steady shear viscosity and sol-gel transition phenomenon. Based upon the above-described backgrounds, the present study has been undertaken to characterize the rheological properties of concentrated poloxamer 407 solutions and gels shear flow in various fields. EXPERIMENTAL SECTION a key role in the rheological properties of agar-agar gels [1].

Although rheological properties are considered bulk and macroscopic properties, they are strongly affected by the gel chemical composition and microstructure, which depends on both covalent and physical bindings. 1988-06-01 It is shown that upon exceeding the certain shear rate value gels demonstrate abnormal rheological property (instant flow cessation). Dependence of shear stress and dynamic viscosity of Gel 1 on In particular, the gelling properties of zein promote the formation of a porous network, which can be easily used for the controlled leakage of the entrapped bioactive compounds. Several studies have described the rheological behavior of speciﬁc fractions of zein such as - and -zein dispersions, A series of low density, highly porous clay/poly(vinyl alcohol) composite aerogels, incorporating ammonium alginate, were fabricated via a convenient and eco-friendly freeze drying method. It is significant to understand rheological properties of precursor gels because they directly affect the form of aerogels and their processing behaviors. Rheological properties of heat‐induced gels from egg albumen and bovine plasma proteins were measured using a mechanical loading device.
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2001-05-01 · Rheological properties of soybean protein gels containing various volume fractions oil droplets have been studied at small and large deformations. Dynamic viscoelastic properties of soybean protein isolate gels were determined as a function of the volume fraction of oil droplets stabilised by the same protein, both in absence and presence of 0.2 M sodium chloride (NaCl). 104 form a gel layer on the surface of an oil substrate. Shear separation will then be 105 applied to prevent complete gelation, promoting particle-particle interactions. 106 Therefore the production of emulsion fluid gels has been investigated, with 107 particular attention to the resulting rheological properties.

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Peak melting temperature (TP) was highest for 0:100 gels and decreased with the addition of HMW β-glucan. Hardness, at 40% compression, increased with concentration, and 25:75 and 50:50 gels were hardest at each concentration. Ordered microstructure, apparent in 0:100 gels, diminished with HMW β-glucan addition. Glucose addition resulted in lower tan δ values and firmer, harder gels compared to gels without glucose.

The schematic mechanism of the structure and Rheological properties of starch gel. The ability of printing and shape retention of printing materials was compactly related to its rheological properties, and G′, G″, τ y and τ f were the commonly rheological parameters in 3D printing analysis. 2001-05-01 · Rheological properties of soybean protein gels containing various volume fractions oil droplets have been studied at small and large deformations. Dynamic viscoelastic properties of soybean protein isolate gels were determined as a function of the volume fraction of oil droplets stabilised by the same protein, both in absence and presence of 0.2 M sodium chloride (NaCl).

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In particular, the gelling properties of zein promote the formation of a porous network, which can be easily used for the controlled leakage of the entrapped bioactive compounds. Several studies have described the rheological behavior of speciﬁc fractions of zein such as - and -zein dispersions,

Some of the classical but important Dec 31, 2019 Gels at concentrations of 2.0%, 2.5% and 3.0% exhibit rheopexy properties at low shear rate values (0.1 s-1). Accordingly, in such systems, the Apr 27, 2017 Whereas no correlation was found between gel rheological properties and the surfactant:hyaluronan charge ratio, the properties were sensitive The influence of strain amplitude, applied coil current, CIP weight fraction and driving angular frequency on the dynamic rheological properties of MR gels are It was determined that the replacement of part of potato starch with inulin significantly modifies rheological properties of starch pastes and gels, weakening their The formation of polysaccharides gels depends on intermolecular hydrogen- bonding interactions, which are generated by intermolecular collisions. During Formation, structure and rheological properties of soy protein gels. Ph. D. thesis, Wageningen University, The Netherlands. Keywords: soy protein isolate, glycinin, esteem gels exhibit strange rheological property tion; Polyethylene glycol (PEG ); Gel; Shear stress Rheological properties of PEG arrangements and gels. Materials and Methods: Rheological properties of gel solutions with different concentrations were measured using oscillatory rheometry.