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空缺絮凝作用;物理性质,化学性质,英文名,分子量,结构式,分子 ...

2018-4-14  名称: 空缺絮凝作用;depletion flocculation. 由溶液中的自由高分子引起的 胶体 絮凝的现象。. 与小分子相比,高分子在溶液中占有的空间要大得多。. 当胶体粒子接近到距离小于高分子在溶液中的尺寸时,粒子之间的空间内的高 分子浓度 将显著减小,形成所谓空缺区。. 由于粒子之间的空间内与体相溶液内的高分子浓度不同而产生的 渗透压 ,在粒子间产生了附加的吸引作用 ...

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Depletion Flocculation Practical Solubility Science ...

Frustratingly, if we add a little too much polymer, we can de-stabilize the system via a non-intuitive effect called Depletion Flocculation. To get a feel for the effect, play with the radius of the particles, the radius ("radius of gyration") of the polymer, its concentration

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Depletion flocculation in colloidal dispersions ...

1996-11-15  Origins of depletion flocculation The first experimental observation of depletion flocculation was reported by Traube [2), whilst investigating the creaming of natural rubber in the presence of water soluble polymers. Subsequently, various authors [3,4] described the aggregation of red blood cells using hydrophilic polymers.

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Depletion stabilization and depletion flocculation ...

1980-6-1  An approximate theory of depletion stabilization and depletion flocculation (i.e., stabilization and flocculation of colloidal particles by polymers in free solution) is presented. This is based upon the rotational isomeric state-Monte Carlo procedures for calculating the conformation of macromolecules between two particles and the Flory-Huggins theory of polymer solutions.

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Depletion flocculation of caseinate-stabilised

2004-5-4  The depletion flocculation theory for soft (steric polymer-coated) spheres has been investigated by Vincent and co-workers , , , , , , and also latterly by Seebergh and Berg . In contrast to hard spheres, the depletion effect in soft (hairy) spheres is much reduced due to the interpenetration of the free non-adsorbed polymer with the anchored steric layer.

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Depletion−Flocculation in Oil-in-Water Emulsions

2019-5-26  This paper shows that low concentrations of β-lactoglobulin fibrils can induce depletion−flocculation in β-lactoglobulin-stabilized oil-in-water emulsions. The minimum required fibril concentration for flocculation was determined experimentally for fibril lengths of about 3 and 0.1 μm.

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Depletion flocculation and depletion stabilization of ...

van Oss, C.J., Arnold, K. Coakley, W.T. Depletion flocculation and depletion stabilization of erythrocytes. Cell Biophysics 17, 1–10 (1990). https://doi.org/10.1007/BF02989801. Download citation. Received: 10 April 1989. Accepted: 25 August 1989. Issue Date: August 1990. DOI: https://doi.org/10.1007/BF02989801

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Depletion Flocculation of Nonaqueous Dispersions ...

1996-6-26  Depletion flocculation, induced in dispersions of hydrophobic silica particles in nonpolar media by the presence of binary mixtures of nonadsorbing polymers, has been investigated both experimentally and theoretically.

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Depletion flocculation of particulate systems induced

1999-7-1  The above behaviour indicates that flocculation is most probably taking place through a depletion mechanism in all three systems,,,. According to this mechanism, particle attraction is caused by an osmotic pressure gradient created between the bulk of the solution and interparticle space after particle collisions.

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Depletion flocculation of emulsions containing

1997-1-1  This is attributed to depletion flocculation of oil droplets due to self-association of unbound protein in the aqueous phase. This phenomenon bears strong similarities to the behaviour of surfactant-based emulsion systems, with the extent of flocculation being here dependent on the concentration of caseinate sub-micelles (cf. surfactant micelles) in the aqueous continuous phase.

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Depletion flocculation of particulate systems induced

1999-7-1  Thus, depletion flocculation tends to cause the formation of large individual flocs behaving as weak springs and dominating the systems elastic response. The differences in the values of the exponent between these three systems could be attributed to different values of the fractal dimensionality.

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Depletion Flocculation of Nonaqueous Dispersions ...

1996-6-26  Depletion flocculation, induced in dispersions of hydrophobic silica particles in nonpolar media by the presence of binary mixtures of nonadsorbing polymers, has been investigated both experimentally and theoretically. The binary mixtures used were either similar polymers having different molecular weights or mixtures of chemically different polymers.

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Depletion flocculation of aqueous, electrosterically ...

2019-5-26  Depletion flocculation of aqueous, electrosterically-stabilized latex dispersions. J. E. Seebergh; and ; J. C. Berg

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Depletion Flocculation Induced by Synergistic Effects

2013-12-13  The depletion flocculation of stable suspensions of charged microparticles (1.2 μm diameter polystyrene) by mixtures of silica nanoparticles (7 nm) and poly(acrylic) acid (PAA, M n = 24 500) was studied. The experiments revealed a very clear critical flocculation concentration of PAA that was lowered by the addition of the silica nanoparticles.

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Depletion flocculation of polystyrene latices by water ...

Flocculation, monitored by turbidity measurements, was observed in the absence of electrolyte at critical polymer concentrations (C *) at 0.4%, 0.02% and 0.3% for HEC, SCMC and SPSS, respectively. The flocculation was reversible to dilution and weak shear forces and was attributed to polymer depletion.

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Depletion and bridging flocculation of oil droplets in

Depletion flocculation was associated with an increase in viscosity of BG or AX-stabilised emulsions compared with BG/AX alone, whereas bridging flocculation with PTN caused a decrease in viscosity. All three polysaccharides reduced lipid digestion rate and extent, but the bridging flocculation induced by PTN had the greatest effect.

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Depletion flocculation of latex dispersion in ionic ...

2002-9-15  This weak maximum was influenced by the shear rate and has a complete reversible character, which means that this weak flocculation will be due to the depletion effect from the free micelles after saturated adsorption. PMID: 16290859

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Depletion flocculation in colloidal dispersions

Depletion flocculation in colloidal dispersions. Abstract The destabilisation of colloidal dispersions by free, non-adsorbing polymer molecules in solution is reviewed from both a

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THE INTERACTION BETWEEN DEPLETION FLOCCULATION

2020-7-31  GLC at equilibrium are driven by depletion flocculation (a surface phenomenon). This work focuses on the interaction between these two phenomena – depletion flocculation and molecular liquid-liquid phase behavior based on the behavior of polystyrene + cyclohexane + nano silica particles.

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水处理药剂_百度百科

吸附电中和、聚合物-颗粒物表面络合物形成的耗散絮凝( depletion flocculation) 等机理的形成,以及对聚电解质络合絮凝机理和吸附胶束絮凝等难降解有机物强化絮凝机理的研究,为有机高分子絮凝剂及多元复合絮凝剂的研制和 ...

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水处理药剂_百度百科

吸附电中和、聚合物-颗粒物表面络合物形成的耗散絮凝( depletion flocculation) 等机理的形成,以及对聚电解质络合絮凝机理和吸附胶束絮凝等难降解有机物强化絮凝机理的研究,为有机高分子絮凝剂及多元复合絮凝剂的研制和 ...

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Depletion and bridging flocculation of oil droplets in

Depletion flocculation was associated with an increase in viscosity of BG or AX-stabilised emulsions compared with BG/AX alone, whereas bridging flocculation with PTN caused a decrease in viscosity. All three polysaccharides reduced lipid digestion rate and extent, but the bridging flocculation induced by PTN had the greatest effect.

More

Depletion flocculation in colloidal dispersions

Depletion flocculation in colloidal dispersions. Abstract The destabilisation of colloidal dispersions by free, non-adsorbing polymer molecules in solution is reviewed from both a

More

Depletion flocculation of latex dispersion in ionic ...

2002-9-15  This weak maximum was influenced by the shear rate and has a complete reversible character, which means that this weak flocculation will be due to the depletion effect from the free micelles after saturated adsorption. PMID: 16290859

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THE INTERACTION BETWEEN DEPLETION FLOCCULATION

2020-7-31  The phase behaviors GC, GL, LC and GLC at equilibrium are driven by depletion flocculation (a surface phenomenon). This work focuses on the interaction between these two phenomena – depletion flocculation and molecular liquid-liquid phase behavior based on the behavior of polystyrene + cyclohexane + nano silica particles.

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“Green” gold nanotriangles: synthesis, purification by ...

The depletion flocculation was performed in presence of AOT micelles. The results show that only a combined polyelectrolyte/micelle depletion flocculation process leads to a complete separation of the triangles. The optimum concentration of the added AOT solution was found at 0.02 M. 2.5.

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Depletion-Induced Flocculation of Concentrated Emulsions ...

2020-3-26  The emulsion with ϕ = 0.10 was used to investigate flocculation processes induced by xanthan as a semi-flexible linear nonabsorbing polymer. Different time regimes in the development of the reduced scattering coefficient μs′ could be identified. First, a rapid, temperature-dependent change in μs′ during the depletion process was observed.

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空缺絮凝作用,depletion flocculation,音标,读音,翻译,英文例句 ...

2018-10-1  1) depletion flocculation. 空缺絮凝作用. 2) flocculation [flɔkju'leiʃən] 絮凝作用. 1. Study on preparation of N-Alkyl triazon methyl starches and their flocculation ; N-烷基三嗪酮甲基淀粉的合成及其絮凝作用的研究. 2. Initial Experiment about the Flocculation of Pectin in Mixed Juice;

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Deswelling and depletion flocculation of microgel ...

2000-5-12  Ferández-Nieves A., Fernández-Barbero A., Vincent B., de las Nieves F.J. (2000) Deswelling and depletion flocculation of microgel particles under external osmotic pressure. In: Buckin V. (eds) Trends in Colloid and Interface Science XIV. Progress in Colloid and Polymer Science, vol 115.

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Steric Stabilisation and Flocculation by Polymers ...

The effect of addition of free polymer to sterically stabilised dispersions, i.e. depletion flocculation, was investigated using rheological measurements.

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空缺絮凝作用,depletion flocculation,音标,读音,翻译,英文例句 ...

2018-10-1  1) depletion flocculation. 空缺絮凝作用. 2) flocculation [flɔkju'leiʃən] 絮凝作用. 1. Study on preparation of N-Alkyl triazon methyl starches and their flocculation ; N-烷基三嗪酮甲基淀粉的合成及其絮凝作用的研究. 2. Initial Experiment about the Flocculation of Pectin in Mixed Juice;

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排斥絮凝,depletion flocculation,在线英语词典,英文翻译,专业英语

2018-10-1  当多糖浓度高于 0 0 4%时 ,液滴发生排斥絮凝 ,体系的稳定性急剧下降 ,更高浓度的瓜尔豆胶因与乳浊液液滴间的热力学不相容性而导致体系发生各向同性和各向异性相分离。 Effects of guar gum on creaming and depletion flocculation stabi...

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Depletion-Induced Flocculation of Concentrated Emulsions ...

2020-3-26  Depletion-Induced Flocculation of Concentrated Emulsions Probed by Photon Density Wave Langmuir ( IF 3.557) Pub Date : 2020-03-25, DOI: 10.1021/acs.langmuir.9b03642 Katharina Bressel, Wenke Müller, Martin E. Leser, Oliver Reich, Roland Hass, Tim J. Wooster

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Depletion Flocculation by Particle Crowding

2018-11-14  Depletion Flocculation SCC SW CHAPTER 1118 Polymers in Cosmetics 413. Depletion Stabilization SCC SW CHAPTER 1118 Polymers in Cosmetics 414. SCC SW CHAPTER 1118 Polymers in Cosmetics Depletion Stabilization •Two particles in solution will be attracted to each other by London Dispersion Forces

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depletion flocculation - easy-rider-reisen.ch

Depletion Flocculation by Particle Crowding. Nov 15, 1996 Depletion flocculation has also been observed in systems where surfactants are used in place of polymers as the flocculant species. Ma [93] has described the depletion flocculation of PS latices by the micellar form of

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Entropic phase separation and depletion flocculation

Competing entropies: depletion flocculation. The presence of hard objects in a polymer solution reduces the configurational entropy of the polymers by reducing the accessible volume, both from the objects themselves and the surrounding depletion region. Nothing can be done about the objects' actual volume, but the polymers stand to gain ...

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THE INTERACTION BETWEEN DEPLETION FLOCCULATION

2020-7-31  GLC at equilibrium are driven by depletion flocculation (a surface phenomenon). This work focuses on the interaction between these two phenomena – depletion flocculation and molecular liquid-liquid phase behavior based on the behavior of polystyrene + cyclohexane + nano silica particles.

More

Deswelling and depletion flocculation of microgel ...

2000-5-12  Ferández-Nieves A., Fernández-Barbero A., Vincent B., de las Nieves F.J. (2000) Deswelling and depletion flocculation of microgel particles under external osmotic pressure. In: Buckin V. (eds) Trends in Colloid and Interface Science XIV. Progress in Colloid and Polymer Science, vol 115.

More

水处理药剂_百度百科

吸附电中和、聚合物-颗粒物表面络合物形成的耗散絮凝( depletion flocculation) 等机理的形成,以及对聚电解质络合絮凝机理和吸附胶束絮凝等难降解有机物强化絮凝机理的研究,为有机高分子絮凝剂及多元复合絮凝剂的研制和 ...

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Interfacial and emulsion characterisation of chemically ...

2020-7-23  We propose that the depletion flocculation is responsible for this imperfection and provide detailed explanations. 中文翻译: 通过多尺度方法对化学修饰的多糖进行界面和乳液表征。 假设 天然乳化剂的结构改性可能会极大地影响其

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