Publication result detail
Enhanced Charpy impact strength of epoxy resin modified with vinyl-terminated polydimethylsiloxane
Jarmila Vilčáková, Lenka Kutějová, Marek Jurča, Robert Moučka, Robert Vícha, Michal Sedlačík, Adriana Kovalcik, Michal Machovský, Natalia Kazantseva
Original Title
Enhanced Charpy impact strength of epoxy resin modified with vinyl-terminated polydimethylsiloxane
English Title
Enhanced Charpy impact strength of epoxy resin modified with vinyl-terminated polydimethylsiloxane
Type
WoS Article
Original Abstract
This article deals with enhancement of the toughness of epoxy resin (ER) based on diglycidyl ether bisfenol A by either polydimethylsiloxane (PDMS) or vinyl-terminated polydimethylsiloxane (VT-PDMS). To improve the compatibility of these two phases, dicumylperoxide (DCP) was used as a compatibilizer. It was established that only specific composition of the components can lead to enhancement of ER toughness without significant reduction of storage modulus, Tg, and interphase adhesion. The highest impact strength was recorded for ER with VT-PDMS (10 wt %) and DCP (2 wt %) due to increased interfacial compatibility between two phases, which was proved by 1H NMR and dielectric spectroscopy. Critical ductile brittle transition occurring between 10 and 15 wt % of rubber was observed by both morphological and dynamic mechanical analysis studies.
English abstract
This article deals with enhancement of the toughness of epoxy resin (ER) based on diglycidyl ether bisfenol A by either polydimethylsiloxane (PDMS) or vinyl-terminated polydimethylsiloxane (VT-PDMS). To improve the compatibility of these two phases, dicumylperoxide (DCP) was used as a compatibilizer. It was established that only specific composition of the components can lead to enhancement of ER toughness without significant reduction of storage modulus, Tg, and interphase adhesion. The highest impact strength was recorded for ER with VT-PDMS (10 wt %) and DCP (2 wt %) due to increased interfacial compatibility between two phases, which was proved by 1H NMR and dielectric spectroscopy. Critical ductile brittle transition occurring between 10 and 15 wt % of rubber was observed by both morphological and dynamic mechanical analysis studies.
Keywords
adhesives; dielectric properties; elastomers; mechanical properties; thermosets
Key words in English
adhesives; dielectric properties; elastomers; mechanical properties; thermosets
Authors
Jarmila Vilčáková, Lenka Kutějová, Marek Jurča, Robert Moučka, Robert Vícha, Michal Sedlačík, Adriana Kovalcik, Michal Machovský, Natalia Kazantseva
RIV year
2019
Released
15.01.2018
Publisher
John Wiley & Sons, Inc.
Location
New Jersey
ISBN
1097-4628
Periodical
JOURNAL OF APPLIED POLYMER SCIENCE
Volume
135
Number
45720
State
United States of America
Pages from
45720-01
Pages to
45720-12
Pages count
12
URL
Full text in the Digital Library