Identifying the co-curing effect of an accelerated-sulfur/bismaleimide combination on natural rubber/halogenated rubber blends using a rubber process analyzer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63542998" target="_blank" >RIV/70883521:28610/21:63542998 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/13/24/4329" target="_blank" >https://www.mdpi.com/2073-4360/13/24/4329</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym13244329" target="_blank" >10.3390/polym13244329</a>

Result language

angličtina

Original language name

Identifying the co-curing effect of an accelerated-sulfur/bismaleimide combination on natural rubber/halogenated rubber blends using a rubber process analyzer

Original language description

The rheometer curing curves of 50/50 blends of natural rubber (NR) and two different halogenated rubbers with a combination of conventional accelerated sulfur (CV) and 3 phr of a bismaleimide (MF3 ) at 170◦C indicates that a co-curing reaction has been taken place between NR and the halogenated rubbers via Diels–Alder reaction. To further confirm whether the co-curing reaction has taken place in the early stage of curing, a complex test methodology was applied with the help of a rubber process analyzer. In this test, the blends with CV and with CVMF3 were subjected to cure at 170◦C for a predetermined time so that both the CV and CVMF3 cured blends will have the same magnitude of curing torque. It is then cooled down to 40◦C and the storage modulus (G′ ) was evaluated as a function of strain from 0.5% to 100% at a constant frequency of 1 Hz. The results reveal that the blends cured with CVMF3 exhibit a higher G′ due to the enhanced network strength because of the formation of bismaleimide crosslinks than the same cured with only the CV system. The swelling resistance and the mechanical properties of the blends cured with CVMF3 were significantly higher than those cured with only the CV system.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

24

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

—

UT code for WoS article

000742720000001

EID of the result in the Scopus database

2-s2.0-85121331291