HLB scale showing classification of surfactant function The hydrophilic–lipophilic balance (HLB) of a surfactant is a measure of its degree of hydrophilicity or lipophilicity, determined by calculating percentages of molecular weights for the hydrophilic and lipophilic portions of the surfactant molecule, as described by Griffin in 1949 [1][2 ...

Hydrophilic–lipophilic balance (HLB) is the balance of the size and strength of the hydrophilic and lipophilic moieties of a surfactant molecule. The HLB scale ranges from 0 to 20. In the range of 3.5 to 6.0, surfactants are more suitable for use in W/O emulsions.

2024年2月23日 · The Hydrophilic-Lipophilic Balance (HLB) scale is a foundational concept in the design and formulation of surfactants and emulsifiers. Its application spans diverse industries, influencing the stability, texture, and performance of emulsions in products ranging from cosmetics to pharmaceuticals.

The HLB system is a numerical scale developed by William Griffin in the 1940s to classify emulsifiers based on their balance between hydrophilic (water-attracting) and lipophilic (oil-attracting) properties. This balance, typically represented on a scale from 0 to 20, determines the surfactant's emulsifying capabilities.

2024年4月16日 · HLB was developed into a semi-empirical model by Griffin in 1949 and its development in 1954. It is a number on a scale of 1-40 (see Figure 1). Based on the HLB value, the surfactant is classified as water-soluble or oil-soluble according to its relative solubility.

2019年1月28日 · In this study, a fast and accurate method has been developed to determine the hydrophilic-lipophilic balance (HLB) number of amphiphilic chemicals. This new method can be applied to establish an HLB number of all commercial amphiphilic ingredients. Compounds which have a PIT-deviation close to zero are also discussed.

HLB values ranging from 1.8 to 8.6. HLB value for W/O emulsion. blends of high and low HLB surfactants can be used to obtain the required HLB of an oil.

HLB is a fractional ratio of hydrophobic part to hydrophilic part of surfactant. Then you may use molar mass to calculate (or at least estimate) the HLB of mixture. Lets say HLB of the mixture of...

Created by William C. Griffin in the late 1940s, the HLB System is one of the most successful strategies for developing stable emulsions. 1,2 Although it might not be used as much today as in the past, it still remains a valuable time-tested tool used by formulators to select the best surfactants from the many hundreds available to emulsify oils.

2020年9月15日 · Horizontal light pipes (HLP) have shown the potential to convey daylight deeper into buildings. The wide variation in incident angles of sunlight rays and the resulting numerous interreflections of light rays within the pipe are the main reasons for the limited light transmittance of such light pipes during certain daylight periods.