Characteristics of Modern Chromatographic Analysis Technology

The Advancement of Modern Chromatographic Technology in Coatings Testing
Coating composition detection is one of the basic work of coating production optimization. The main functions of modern analysis and testing of coatings are as follows:

➢ Efficiently understand the specific ingredients in the coating, the content of each ingredient, and the ratio of the different ingredients.
➢ It is beneficial to the further research and development of high-performance coatings, and a more scientific composition combination of coatings can be obtained through composition detection.
➢ It is helpful to strengthen the research on the composition of advanced coatings, through understanding and innovation, to carry out the research and development of new coatings.
➢ Improve the scientific degree of coatings separation analysis during component analysis, and efficiently separate complex mixtures until the detection purity of the coating can meet the equipment requirements of the corresponding instrument.
➢ It helps to control the proportion of coatings components lost during the entire inspection process, thus optimizing the process control of the entire coatings inspection.
➢ Modern chromatographic analysis technology has high reproducibility and recovery rate, which can carry out detailed analysis of trace components in the coatings, so as to achieve flow control of the monitored substances throughout the detection process.

Characteristics of Modern Chromatographic Analysis Technology
The modern chromatographic analysis technology mainly refers to the separation of material component structure under the condition of high-speed operation of the internal components of the test object. This separation method is relatively efficient, and the technician can use the speed control method to optimally control the different components contained in the test material.

In fact, compared with the traditional coatings detection methods, modern chromatographic analysis technology has more advantages in speed analysis, speed control, separation degree and separation effect. Especially in the process of composition detection of small particles, modern chromatographic technology can be used to detect components with different peak widths. The blockage of the chromatographic column is effectively avoided and the scientificity of the whole detection is improved.

In the production process of modern coatings, it usually contains a variety of harmful substances and highly toxic substances. Chromatographic detection technology can greatly improve the efficiency of the whole testing work by separating the components of these substances.

The Specific Application of Modern Chromatographic Analysis Technology
The fluidity of the coating is usually high, the application of traditional detection technology may cause the loss of the tested object. With the application of modern chromatographic detection technology, the loss rate of the tested coatings can be better controlled by the combined application of gas chromatography and liquid chromatography. Technicians can also optimize the detection of coatings of different compositions by using the ultra-high separation performance of chromatographic detection methods, combined with distillation technology, extraction technology, centrifugal technology, etc., further reducing the cost of detection and improving the efficiency of detection.

➢ Gas Chromatography Detection Technology

Gas chromatography detection technology is a major chromatographic detection method, which has high stability. It can complete the separation of the tested coatings by quantitative analysis and qualitative analysis. At the same time, this detection technology has a very high separation efficiency and a short separation time. It can be applied to many types of coatings. In addition, it can also be used in drug inspection and analysis, especially in excipient analysis and environmental quality testing.

First, gas chromatography is used to detect coating components. The separation of polymer emulsion materials, residual substances and free substances is accomplished by large gas chromatography detector.

Second, the technician prepares the coating object to be tested and adds a solvent to the coating to determine the water content and oily content of the coating.

Third, technicians should control the recovery rate of gas chromatographic detection methods. Taking the detection of tribenzene content as an example, the recovery amount can usually reach 98% to 101%. It can be seen that the recovery rate of gas chromatography is relatively high, and the tribenzene content in the coating can be detected effectively.

➢ Liquid Chromatographic Detection Technology

Technology Advantages

Liquid chromatography detection technology is also one of the main chromatographic detection technology, modern liquid chromatography detection technology is very efficient, and can be combined with mass spectrometry, spectrum, and nuclear magnetic resonance detection technology. In this way, technicians can effectively analyze the polymers in the coating materials, and even find some unknown detection objects. The whole detection does not need the standard sample, it can directly carry on the qualitative analysis through the pyrolysis fragment of the coating, to determine the boiling point, melting point, component mixing of the tested coating by analyzing and judging the polymer composition and structure.

Future Development

High-performance liquid chromatography detection technology is very convenient, and the detection results are relatively accurate. The technician can pre-process the whole sample through micro-additive control to optimize the quantitative analysis result of the whole detection. In the future, technicians will optimize high performance liquid chromatography detection technology, through the combination with other polymer detection and analysis results, to overcome the problem that inorganic fillers cannot be reduced in the process of sample detection, so as to further improve the detection effect and realize the optimal control of coating detection.

Characteristics of Modern Chromatographic Analysis Technology