Thesis supervisor: József Karger-Kocsis
Location of studies (in Hungarian): 1111 Budapest, Műegyetem rkp. 3. T build. 315. Abbreviation of location of studies: PT
Description of the research topic:
a.) Antecedents: The future of thermoplastic matrix-based composites depends on costs’ reduction possibilities. A straightforward approach is to use monomers instead of polymers and highly confectioned pricy textile preforms and perform their polymerization in situ. To adapt the Resin Transfer Molding (RTM), well established for thermoset composites, for thermoplastics (T-RTM), especially for automotive parts production, where a short cycle and process robustness are required, is a great challenge. The activated anionic ring-opening polymerization (AROP) of ε-caprolactam (CL) may be a promising way to meet the related requirements that should be explored accordingly.
b.) Aim of research: The research work is aimed at producing composites’ coupons and parts via T-RTM, testing them according to state-of-art techniques, analysing the production cycle including its modelling and optimization.
c.) Tasks, main items, necessary time:
• Literature review in the field of AROP produced polymers and composites thereby focusing industrial production methods, incl. T-RTM versions (approx. 4 month).
• Fabrication of composite coupons making use of in situ AROP of CL (different initiators, activators and reinforcements) and their testing (approx. 12 month).
• Industrial scale T-RTM production of specimens and parts and their investigations. The investigations cover polymerization-related (conversion, crystallization) and composite-related features, such as mechanical and viscoelastic parameters (approx. 15 month).
• T-RTM process analysis and optimization - pros and cons with respect to traditional RTM (approx. 5 month).
d.) Required equipment: The necessary equipment is available at the laboratory of the Department; the industrial-scale production will be run at a cooperative company (evopro Systems Eng. Kft.).
e.) Expected scientific results: Development of a T-RTM process with short cycle times for the large scale production of automotive parts.
f.) References:
• Roda, J., Polyamides, in Handbook of Ring-Opening Polymerization. 2009, Wiley-VCH Verlag GmbH & Co. KGaA: Weinheim, Germany. p. 165-195
• van Rijswijk, K., et al., Optimization of anionic polyamide-6 for vacuum infusion of thermoplastic composites: choice of activator and initiator. Composites: Part A, 2006. 37: p. 949-956
• Ageyeva, T., Sibikin, I., Karger-Kocsis J.: Polymers and related composites via anionic ring-opening polymerization of lactams: Recent developments and future trends. Polymers, 2018, 10, 357
Required language skills: english Number of students who can be accepted: 1
Deadline for application: 2018-10-19
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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