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Journal of Polymer Research
Published in: Journal of Polymer Research 2/2019

01-02-2019 | ORIGINAL PAPER

Optimization of initiator and activator for reactive thermoplastic pultrusion

Authors: Ke Chen, Mingyin Jia, Sun Hua, Ping Xue

Published in: Journal of Polymer Research | Issue 2/2019

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Abstract

In order to manufacture continuous fiber reinforced thermoplastic composites with high fiber content, reactive thermoplastic pultrusion was developed by using the anionic polymerization of polyamide-6 in this study. Firstly, based on the polymerization time tests, combination of activator of difunctional hexamethylene-1,6-di carbamoylcaprolactam (C20) and initiator of sodium caprolactamate (C10) were chosen as the most suitable formula combination for pultrusion. Effects of concentrations of the activator C20 and the initiator C10 on the polymerization time, molecular weight of polymer and degree of conversion were also investigated. Then, the range of initial polymerization temperature was determined, which had a great influence on the impregnation of dense fiber reinforcement. Comparing with commercial polyamide-6, the anionic polyamide-6 has a higher modulus and lower elongation. Finally, continuous glass fiber reinforced polyamide-6 composites with 50% volume fraction were successfully pultruded. Great interfacial adhesion between fiber and polymer was observed by the scanning electron microscope.
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Metadata
Title
Optimization of initiator and activator for reactive thermoplastic pultrusion
Authors
Ke Chen
Mingyin Jia
Sun Hua
Ping Xue
Publication date
01-02-2019
Publisher
Springer Netherlands
Published in
Journal of Polymer Research / Issue 2/2019
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-019-1708-6

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