Tuning the curing efficiency of conventional accelerated sulfur system for tailoring the properties of natural rubber/bromobutyl rubber blends

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F22%3A63558598" target="_blank" >RIV/70883521:28610/22:63558598 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/15/23/8466" target="_blank" >https://www.mdpi.com/1996-1944/15/23/8466</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma15238466" target="_blank" >10.3390/ma15238466</a>

Result language

angličtina

Original language name

Tuning the curing efficiency of conventional accelerated sulfur system for tailoring the properties of natural rubber/bromobutyl rubber blends

Original language description

The state of cure and the vulcanizate properties of a conventional accelerated sulfur (CV) cured 50/50 blend of natural rubber (NR) and bromobutyl rubber (BIIR) were inferior. However, this blend exhibits a higher extent of cure with remarkable improvements in its mechanical properties, particularly the tensile strength, modulus and hardness after curing with a combination of accelerated sulfur and three parts per hundred rubber (phr) of a bismaleimide (MF3). Moreover, with the use of 0.25 phr of dicumyl peroxide (DCP) along with the CV/MF3 system, the compression set property of the CV-only cured blend could be reduced from 68% to 15%. The enhanced compatibility between NR and BIIR with the aid of bismaleimide via the Diels-Alder reaction was identified as the primary reason for the improved cure state and the mechanical properties. However, the incorporation of a certain amount of bismaleimide as a crosslink in the NR phase of the blend, via a radical initiated crosslinking process by the action of DCP, is responsible for the improved compression set properties.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

23

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

nestrankovano

UT code for WoS article

000896350400001

EID of the result in the Scopus database

2-s2.0-85143750647