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Study of the influence of initiator content in the polymerization reaction of a thermoplastic liquid resin for advanced composite manufacturing

2018; Wiley; Volume: 37; Issue: 8 Linguagem: Inglês

10.1002/adv.22142

1098-2329

Olívia de Andrade Raponi, Lorena Cristina Miranda Barbosa, Bárbara Righetti de Souza, Antônio Carlos Ancelotti,

Polymer Nanocomposites and Properties

Abstract Considerable interest has been generated in the last years in the use of thermoplastics polymers as matrices in advanced composites manufacturing. In this research, a new Elium ® acrylic matrix developed by Arkema has been studied to evaluate the influence of different benzoyl peroxide initiator (Luperox ® 78) contents on the polymerization reactions for Elium ® 150. For that, thermal and rheological analyses were performed providing a better understanding of these reactions. The results show that the initiator concentration and temperature affect the resin's properties not only in the initiation step, but also in the resin's complete polymerization reaction. Besides that, it was observed that the initiator concentration can also affect the polymer chain lengths, which may lead to variations in the dynamic mechanical properties and thermal stability of the polymer.