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Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper
Published on: October 4, 2019
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Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper.
Mary Kombolias1, Jan Obrzut2, Michael T Postek3
1Testing and Technical Services, Plant Operations, United States Government Publishing Office; mkombolias@gpo.gov.
Journal of Visualized Experiments : Jove
|October 22, 2019
Summary
Resonant cavity dielectric spectroscopy offers a non-destructive method to analyze paper substrates. This technique can differentiate paper types, estimate age, and quantify recycled fiber content, overcoming limitations of traditional destructive methods.
Area of Science:
- Materials Science
- Analytical Chemistry
- Spectroscopy
Background:
- Current analytical methods for printing and graphic arts substrates are often ex situ and destructive.
- These limitations restrict data acquisition from individual samples and hinder statistically relevant analysis of unique materials.
Purpose of the Study:
- To introduce and validate resonant cavity dielectric spectroscopy as a non-destructive, contactless analytical technique for sheeted materials.
- To demonstrate its application in differentiating paper based on composition, age, and recycled content.
Main Methods:
- Utilized resonant cavity dielectric spectroscopy, a non-destructive and contactless method.
- Applied the technique to analyze paper substrates, interrogating both sides simultaneously.
Main Results:
- Successfully differentiated paper analytes based on varying fiber species compositions.
- Demonstrated the ability to determine the relative age of paper samples.
- Quantified the amount of post-consumer waste (PCW) recycled fiber content in manufactured office paper.
Conclusions:
- Resonant cavity dielectric spectroscopy provides a rapid and statistically relevant method for analyzing paper substrates.
- The technique overcomes the limitations of traditional destructive methods, enabling comprehensive material characterization.
