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Properties and structure of high temperature resistant cyanate ester/polyethersulfone blends using solvent-free toughening approach

Amirova, Lyaysan and Schadt, Fabian and Grob, Markus and Brauner, Christian and Ricard, Thomas and Wille, Tobias (2020) Properties and structure of high temperature resistant cyanate ester/polyethersulfone blends using solvent-free toughening approach. Polymer Bulletin. Springer Nature. doi: 10.1007/s00289-020-03493-w. ISSN 0170-0839.

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Official URL: https://link.springer.com/article/10.1007%2Fs00289-020-03493-w#citeas

Abstract

A high temperature resistant novolac cyanate ester was blended with polyethersulfone (PES) with different molecular weights using the solvent-free approach. The phase separation, curing behavior and thermal properties were studied using hot stage microscopy, differential scanning calorimetry and dynamic mechanical analysis. Results showed the difference in the morphology for blends with different molecular weight PES explained by possible network formation. The influence of PES content on the glass transition temperature and mechanical properties was investigated. The most significant toughening effect (increase of 132% in fracture toughness) was achieved on a functionalized low molecular weight PES (20 parts per hundred of resin, phr). Rheology investigation allowed to estimate the optimal content of PES (15 phr) for further prepreg manufacturing.

Item URL in elib:https://elib.dlr.de/147939/
Document Type:Article
Title:Properties and structure of high temperature resistant cyanate ester/polyethersulfone blends using solvent-free toughening approach
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Amirova, LyaysanUNSPECIFIEDhttps://orcid.org/0000-0001-6306-4309
Schadt, FabianUNSPECIFIEDUNSPECIFIED
Grob, MarkusUNSPECIFIEDUNSPECIFIED
Brauner, ChristianUNSPECIFIEDUNSPECIFIED
Ricard, ThomasUNSPECIFIEDUNSPECIFIED
Wille, TobiasFA-STMUNSPECIFIED
Date:25 November 2020
Journal or Publication Title:Polymer Bulletin
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s00289-020-03493-w
Publisher:Springer Nature
Series Name:Springer Nature
ISSN:0170-0839
Status:Published
Keywords:High temperature composite, cyanate ester, polyethersulfone, material characterisation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design, R - Material Design and New Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Wille, Tobias
Deposited On:05 Jan 2022 13:12
Last Modified:06 Jan 2022 04:13

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