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Quality control of the cure process of thermosetting resins by means of differential scanning calorimetry |
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| Authors: | A Apicella C A Beretta M A Castiglione-Morelli E Martuscelli L Nicolais M R Nobile |
| Institution: | (1) Department of Materials and Production Engineering, University of Naples, Piazzale Tecchio, 80125 Naples, Italy;(2) Istituto di Ricerche su Tecnologia Dei Polimeri E Reologia, Consiglio Nazionale Delle Ricerche (CNR), Via Toiano 6, 80772 Arco Felice, Naples, Italy |
| Abstract: | Calorimetric and rheological characterizations of thermosetting resin formulations containing a novalac epoxy resin hardened with 60 to 120 parts per hundred of methylated maleic acid adduct anhydride are described. The calorimetrically determined epoxy conversion has been related to the gelation limits theoretically calculated from Flory's non-linear copolymerization theory and experimentally verified in rheological tests.Zusammenfassung Die kalorimetrische und rheologische Charakterisierung der Ansätze von hitzhärtbarem Harz wird beschrieben. Die Ansätze enthalten ein mit 60–120% methyliertem Maleinsäure-Adduktanhydrid gehärtetes Novolackepoxidharz. Die kalorimetrisch bestimmte Epoxid-konversion wurde auf die theoretisch aus der nicht-linearen Flory'schen Kopolymerisationstheorie berechneten und experimentell durch rheologische Tests bestätigten Erstarrungsgrenzen bezogen.
Financial and scientific support by the CNR Progetto Chimica Fine e Secondaria and the Societa Italiana Resine (SIR) is gratefully acknowledged. |
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