Microwave Dielectric Characterization of Low Density Glass Fibers with Resin Binder

Abstract

Properties of low density fiber glass products are studied with the aid of microwaves. The resin amount and state of cure are related to the dielectric properties of these materials. Extensive measurements of the dielectric properties of liquid binder (fresh and 12-day old) and several fiber glass materials with different percentage of resin binder are performed in a wide frequency band. Using the measured data some theoretical simulations are performed which demonstrate the potential of detection of local property variation in these materials. A special sample with several "defects" with different binder percentages is scanned and microwave images produced at 10 and 24 GHz. In all images the defects are detected and classified as different depending on their binder percentage.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Binders; Characterization; Computer Simulation; Crystal Defects; Dielectric Properties; Electric Variables Measurement; Electromagnetic Wave Propagation; Error Detection; Microwaves; Nondestructive Examination; Low Density Glass Fibers; Microwave Dielectric Characterization; Microwave Images; Resin Binder; Glass Fibers; Cure And Resin Amount Characterization; Low Density Fiber Glass; Microwave Dielectric Properties; Microwave Imaging

International Standard Serial Number (ISSN)

0255-5476

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1996 Trans Tech Publications, All rights reserved.

Publication Date

01 May 1996

Link to Full Text

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