Page 7 - Solutions for Plastic Evaluation

Structure and Composition Evaluation of Raw Materials

FTIR

FTIR Measurement of Plastic Pellets and Powder by Single Reflection ATR Method
The figure on the left below shows results from measuring various types of plastic pellets and powders. The single reflection ATR method
allows measuring pellet and powder samples directly by simply placing them tightly against an approximately 2 mm diameter prism. Plastic Materials Evaluation of
Furthermore, it allows even new users to easily obtain qualitative information about measured polymers by using the spectral search function.

ABS

Polycarbonate Raw Materials Evaluation of

PET

Nylon 6

Polyphenylene sulfide Product Evaluation

Spectral Search Window
Example of Measuring Plastic Pellets and Powders Example of Measuring Plastic Pellets and Powders

Single Reflectance ATR Method Product Information
Single reflection ATR measures the infrared spectrum of a sample pressed against the surface of a prism approximately 2 mm in diameter.
It allows measuring samples by simply placing them in close contact with the center of the prism. Therefore, it is not restricted to flat
samples and can measure curved or powdered samples as well. Liquid samples can be measured by simply dripping them onto the prism.
A photograph of the DuraSamplIR II single reflection ATR attachment and an illustration of its optics are shown below. It irradiates the
sample with infrared light through the prism and obtains information about the sample surface (to a depth of about 1 µm) based on the
light reflected from the boundary surface. Not only does this eliminate the need for dilution or other sample pretreatment, but also allows
obtaining information about the sample surface easily.

Photograph of DuraSamplIR II Diagram of Optics

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