Cross-Linking, Morphology, and Physico-Mechanical Properties of GTR/SBS Blends: Dicumyl Peroxide vs. Sulfur System - Publication - Bridge of Knowledge

Your account

login

Search

Cross-Linking, Morphology, and Physico-Mechanical Properties of GTR/SBS Blends: Dicumyl Peroxide vs. Sulfur System

Abstract

In this work, ground tire rubber and styrene–butadiene block copolymer (GTR/SBS) blends at the ratio of 50/50 wt%, with the application of four different SBS copolymer grades (linear and radial) and two types of cross-linking agent (a sulfur-based system and dicumyl peroxide), were prepared by melt compounding. The rheological and cross-linking behavior, physico-mechanical parameters (i.e., tensile properties, abrasion resistance, hardness, swelling degree, and density), thermal stability, and morphology of the prepared materials were characterized. The results showed that the selected SBS copolymers improved the processability of the GTR/SBS blends without any noticeable effects on their cross-linking behavior—which, in turn, was influenced by the type of cross-linking agent used. On the other hand, it was observed that the tensile strength, elongation at break, and abrasion resistance of the GTR/SBS blends cured with the sulfur system (6.1–8.4 MPa, 184–283%, and 235–303 mm3, respectively) were better than those cross-linked by dicumyl peroxide (4.0–7.8 MPa, 80–165%, and 351–414 mm3, respectively). Furthermore, it was found that the SBS copolymers improved the thermal stability of GTR, while the increasing viscosity of the used SBS copolymer also enhanced the interfacial adhesion between the GTR and SBS copolymers, as confirmed by microstructure evaluation.

Citations

  • 3

    CrossRef

  • 0

    Web of Science

  • 3

    Scopus

Authors (5)

Cite as

Full text

download paper
downloaded 23 times
Publication version
Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.3390/ma16072807
License
Creative Commons: CC-BY open in new tab

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
Materials no. 16,
ISSN: 1996-1944
Language:
English
Publication year:
2023
Bibliographic description:
Rodak A., Susik A., Kowalkowska-Zedler D., Zedler Ł., Formela K.: Cross-Linking, Morphology, and Physico-Mechanical Properties of GTR/SBS Blends: Dicumyl Peroxide vs. Sulfur System// Materials -,iss. 7 (2023), s.2807-
DOI:
Digital Object Identifier (open in new tab) 10.3390/ma16072807
Sources of funding:
Verified by:
Gdańsk University of Technology

seen 63 times

Recommended for you

Processing, Mechanical and Morphological Properties of GTR Modified by SBS Copolymers

2023

Interfacial adhesion evaluation in (low-density polyethylene)/elastomer blends

2016

Interfacially modified LDPE/GTR composites with non-polar elastomers: From microstructure to macro-behavior

2015

Processing, Performance Properties, and Storage Stability of Ground Tire Rubber Modified by Dicumyl Peroxide and Ethylene-Vinyl Acetate Copolymers

2021
Meta Tags