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Showing 1 to 6 of 6 for “"dielectric analysis"”.
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Evaluation of Phenol Formaldehyde Resin Cure Rate
… methods are used, parallel-plate rheometry and dielectric spectroscopy. Viscosity data from a parallel-plate rheometer may be used to track the advance of polymerization as a function of temperature. This data can then be used to optimize press conditions and reduce production times and costs. …
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Fundamental experiments on the response of solutions, polymers, and modified polymeric materials to electromagnetic radiation
… divided into two sections. In the first section dielectric and magnetic properties were analyzed for a series of materials: bisphenol A solutions, a poly(amideimide), and polymers filled with either carbon black, iron particles, or aluminum flake. The second section deals with the influence of …
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An Improved Method for the Fracture Cleavage Testing of Adhesively-Bonded Wood
… application of an established and powerful data analysis using a corrected compliance method from beam theory. Three studies were conducted using various wood adhesives and DCB specimens were fabricated from yellowpoplar (Liriodendron tulipifera) sapwood. The sensitivity of this methodology …
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Characterization of Spin Coated Polymers in Nano-environments as a Function of Film Thickness
… films were examined using techniques such as dielectric analysis and thermal mechanical analysis. The theory of cooperativity, which explains polymeric behavior using the intermolecular and intramolecular forces among polymer chains, was employed to understand the behavior of these thin films. …
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Characterization of PF Resol/Isocyanate Hybrid Adhesives
… to measured cure rates, dynamic mechanical analysis, and atomic force microscopy. In the second part of this study a series of PF resins was synthesized employing the so-called "split-cook" method, and by using a range of formaldehyde/phenol and NaOH/phenol mole ratios. These neat PF resins …
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Characterization of Pharmaceutical Materials by Thermal and Analytical Methods
… by Thermal Analytical techniques, which include dielectric analysis (DEA), differential scanning calorimetry (DSC), and macro-photo-micrography. These techniques were used to establish a structure vs. property relationship with the United States Pharmacopeia (USP) standard set of active …