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[Chemical Knowledge]：Detection Methods and Analysis Techniques of BOPET Film

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BOPET film detection method

As an important packaging material, BOPET film is widely used in food, medicine, electronics and other fields, so its quality and performance detection is very important. Below we will introduce several commonly used BOPET film detection methods:

Physical performance testing: Physical performance testing is one of the important means to evaluate the quality of BOPET film, including thickness, transparency, tensile strength, thermal shrinkage and other indicators. Commonly used testing instruments include thickness gauge, transmittance meter, tensile testing machine, etc., through which the physical properties of BOPET film can be comprehensively evaluated.

Chemical composition analysis: The chemical composition of BOPET film has a great influence on its performance and use, so chemical composition analysis is required. The commonly used analysis methods include infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, etc. These methods can accurately determine the composition and content of BOPET film and provide an important basis for its quality control.

Surface morphology observation: The surface morphology of BOPET film directly affects the effect of its printing, coating and other processing processes, so it is necessary to observe the surface morphology. Commonly used observation methods include scanning electron microscopy (SEM), atomic force microscopy (AFM), etc., by which the surface morphology of BOPET film can be observed and analyzed with high resolution.

Functional performance test: In addition to physical properties and chemical composition, the functional performance of BOPET film is also one of the key testing points, including temperature resistance, moisture resistance, chemical resistance, etc. Commonly used test methods include heat seal test, water vapor transmission rate test, chemical resistance test, etc., through these tests can evaluate the performance of BOPET film in different environments.

The above are several commonly used BOPET film detection methods, through these methods can comprehensively evaluate the quality and performance of BOPET film, and provide reliable guarantee for its application in various industries.

BOPET Film Analysis Technology

In addition to the regular detection methods, there are some advanced analysis techniques that can further improve the quality control and R & D level of BOPET film. Below we will introduce several commonly used BOPET film analysis techniques:

Transmission electron microscopy (TEM): Transmission electron microscopy is a high-resolution microscope that can observe and analyze the internal structure of BOPET film. Through TEM technology, the hierarchical structure and crystal morphology of BOPET film can be clearly observed, which provides an important reference for the optimization of its microstructure.

X-ray diffraction (XRD):X-ray diffraction is a commonly used material structure analysis technique that can determine the crystal structure and crystal orientation of BOPET films. Through XRD analysis, we can understand the crystallinity and grain size of BOPET film, and provide a scientific basis for the regulation and optimization of its performance.

Thermal analysis technology: Thermal analysis technology includes thermal reanalysis (TGA), differential scanning thermal analysis (DSC), etc., can be a comprehensive analysis of the thermal properties of BOPET film. Through these techniques, the melting temperature, thermal decomposition temperature and other parameters of BOPET film can be determined, which provides reliable support for its application in high temperature environment.

Surface modification technology: surface modification is one of the important ways to improve the performance of BOPET film, and the commonly used surface modification technology includes plasma treatment, chemical coating and so on. Through these technologies, the surface properties of BOPET film can be improved, its temperature resistance, chemical resistance and other indicators can be improved, and its application range in high-end fields can be expanded.

The above are several commonly used BOPET film analysis technologies. Through these technologies, the structure and performance of BOPET film can be deeply understood, and technical support and guarantee can be provided for its application and development in different fields.

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