In situ characterization of the reaction-diffusion behavior during the gradient interphase formation of polyetherimide with a high-temperature epoxy system
Loading...
Authors
Author (Corporation)
Publication date
21.01.2022
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Polymers
Special issue
DOI of the original publication
Link
Series
Series number
Volume
14
Issue / Number
3
Pages / Duration
Patent number
Publisher / Publishing institution
MDPI
Place of publication / Event location
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
This study presents two novel methods for in situ characterization of the reaction-diffusion process during the co-curing of a polyetherimide thermoplastic interlayer with an epoxy-amine thermoset. The first method was based on hot stage experiments using a computer vision point tracker algorithm to detect and trace diffusion fronts, and the second method used space- and time-resolved Raman spectroscopy. Both approaches provided essential information, e.g., type of transport phenomena and diffusion rate. They can also be combined and serve to elucidate phenomena occurring during diffusion up to phase separation of the gradient interphase between the epoxy system and the thermoplastic. Accordingly, it was possible to distinguish reaction-diffusion mechanisms, describe the diffusivity of the present system and evaluate the usability of the above-mentioned methods.
Keywords
Subject (DDC)
620 - Ingenieurwissenschaften und Maschinenbau
Event
Exhibition start date
Exhibition end date
Conference start date
Conference end date
Date of the last check
ISBN
ISSN
1879-1344
0144-8617
0144-8617
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Gold
Citation
ZWEIFEL, Lucian, Christian BRAUNER, Julie TEUWEN und Clemens DRANSFELD, 2022. In situ characterization of the reaction-diffusion behavior during the gradient interphase formation of polyetherimide with a high-temperature epoxy system. Polymers. 21 Januar 2022. Bd. 14, Nr. 3. DOI 10.3390/polym14030435. Verfügbar unter: https://doi.org/10.26041/fhnw-4482