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Emulsion Solid content determination

Abstract: 本文章探讨了乳液固含量测定的重要性及其具体测定方法。乳液的固含量是评估其性能的关键指标，影响粘度、稳定性和涂布性等应用效果。通过了解固含量，不仅可以优化生产过程，提升原材料利用率，还能降低成本。文章详细描述了参照国家标准 GB/T1725-2007 的测定步骤，包括样品瓶的烘干、乳液的称取与干燥，以及固含量和转化率的计算公式。这一方法为乳液的性能分析和产品质量控制提供了可靠的数据支持。

The solids content of an emulsion is an important indicator to evaluate its properties, which directly affect the properties and application results of the emulsion, such as viscosity, stability and coatability. By knowing the solids content, you can optimize the production process, improve the utilization of raw materials, and reduce costs.It is usually determined with reference to the national standard GB/T1725-2007. The steps of solids testing are as follows:

First, the cleaned vials are dried in an oven and weighed in mass (m0). Next, the appropriate amount of emulsion (m1) is precisely weighed, placed in a sample bottle, and dried at a temperature of 110±2°C. Weigh the vial several times until a constant weight (m2) is obtained.

Solids are calculated according to the formula:

Determination of solid content of emulsion with Figure 1

where W is the solid content of the sample (%), M0 is the mass of the dried vial (g), M1 is the total mass of the emulsion and the vial (g), and M2 is the total mass of the dried vial (g).

In addition, the conversion rate can be obtained by comparing the actual solids content with the theoretical solids content, which is calculated as:

Determination of solid content of emulsion with Figure 2

This method effectively reflects the solid composition of the emulsion and provides important data for further applications.

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