一种通用方法来确定表面活性剂的洗作用
Rebeka Bejczi1, Roland Nagy1, Anna Molnár-Kiss1
1University of Pannonia, Faculty of Engineering, Department of MOL Hydrocarbon- and Coal Processing, Egyetem u. 10, Veszprém, H-8200, Hungary.
MethodsX
|May 27, 2024
概括
一种新的,低成本的方法准确地测量了表面活性剂的洗作用,这对于工业清洁至关重要. 这种通用测试方法易于执行,适用于任何表面活性剂类型.
科学领域:
- 表面化学 表面化学
- 工业应用 工业应用
- 材料科学 是一种材料科学.
背景情况:
- 表面活性剂具有诸如湿化,乳化和洗等必不可少的特性,在从化品到石油的各个行业中至关重要.
- 评估表面活性剂的有效性通常涉及标准化测试,但缺乏复杂的洗剂效应的通用方法.
- 洗剂效应,或从表面去除污染物,取决于因素的协同作用,而不仅仅是表面活性剂本身.
研究的目的:
- 开发一种通用,简单,易于实施的测试方法来评估表面活性剂的洗作用.
- 提供一种低成本的解决方案,用于在各种应用中比较不同类型的表面活性剂的洗剂能力.
- 为弥补表面活性剂清洁性普遍适用的测试方法的差距.
主要方法:
- 该研究引入了一种新的方法,旨在确定表面活性剂的洗作用.
- 这种方法是为了广泛应用而设计的,可以适应任何表面活性剂的分类.
- 该方法强调其执行过程中的简单性和成本效益.
主要成果:
- 开发的方法成功量化了表面活性剂的洗作用.
- 它已被验证为其通用性,证明适用于所有类型的表面活性剂.
- 该方法被证实是低成本和简单的实施.
结论:
- 成功开发了一种通用,低成本,易于执行的方法来评估表面活性剂的洗剂效果.
- 这种新方法允许有效地比较不同表面活性剂的清洁能力.
- 这些发现为工业应用和表面活性剂的选择提供了有价值的工具.
更多相关视频
10:27Contrast-Matching Detergent in Small-Angle Neutron Scattering Experiments for Membrane Protein Structural Analysis and Ab Initio Modeling
Published on: October 21, 2018
12.4K
00:07Accurate Determination of the Equilibrium Surface Tension Values with Area Perturbation Tests
Published on: August 30, 2019
7.4K
相关概念视频
01:18Detergent Purification of Membrane Proteins
5.2K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
5.2K
03:22Colloids
17.4K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.4K
00:53Extraction: Effects of pH
483
Consider a neutral form of an amine, B, with a partition coefficient, K, in a liquid mixture containing organic and aqueous phases. The pH of the aqueous phase affects the charge on acidic and basic solutes, and the charged form is usually more soluble in the aqueous phase. Suppose the conjugate acid form of the amine is soluble only in the aqueous phase while the base form is soluble in both phases. Then the distribution coefficient, D, can be given as the ratio of amine concentration in the...
483
01:20Chemical Equilibria: Redefining Equilibrium Constant
578
The effect of an inert salt on the solubility of a sparingly soluble salt is known as the salt effect. The degree of the salt effect varies with the ionic strength of the solution, which in turn depends on the activity of the species in the solution. The activity is expressed as the product of concentration and the activity coefficient of the species.
To calculate the equilibrium constants of solutions of moderately high ionic strength, one must account for the salt effect. This redefined...
To calculate the equilibrium constants of solutions of moderately high ionic strength, one must account for the salt effect. This redefined...
578
01:23Factors Affecting Dissolution: Particle Size and Effective Surface Area
807
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
807
01:09Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
289
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
289