Analysis of kinetic parameters of an urethane–acrylate resin for pultrusion process

✍ Scribed by M. Sarrionandia; I. Mondragon; S. M. Moschiar; A. Vázquez

• Book ID: 101257906
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 203 KB
• Volume: 77
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(20000711)77:2<355::aid-app11>3.0.co;2-y

✦ Synopsis

An urethane-acrylic resin for a pultrusion processing application was studied. The concentration of Perkadox 16 and methyl methacrylate (MMA) was changed in the formulation mixture. A calorimetric study was performed in a DSC equipment. Isothermal runs from 42 to 60°C were performed to obtain a kinetic model for the polymerization reaction. Conversion of vitrification as a function of temperature was determined and the total heat of reaction as a function of MMA content was also measured. A general kinetic model was applied. An autocatalytic model and mastercurve approach with an order of reaction of n ϩ m ϭ 2 and an activation energy of 95.9 kJ/mol were found. By the application of the Kissinger model for dynamic runs, an activation energy of 88.8 kJ/mol was obtained.