Influence of cure system concentration on crosslink structure in SBR sulphur vulcanizates

Blow, C. M.; Loo, C.T.

doi:10.1016/0032-3861(75)90055-5

Cited by 6 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These network characteristics are actually dominated by the curing system, i.e. sulfur, accelerator, activator;4 however, it is also well known that the presence of reinforcement can influence the kinetics of vulcanization and crosslink network structure of rubber vulcanizates 2–4…”

Section: Introductionmentioning

confidence: 99%

Effect of carbon‐based nanoparticles on the cure characteristics and network structure of styrene–butadiene rubber vulcanizate

Saatchi

Shojaei

2012

Polymer International

View full text Add to dashboard Cite

The network structure of styrene–butadiene rubber (SBR) in the presence of carbon black (CB) with two different structures and multi‐walled carbon nanotubes (MWCNTs) was investigated. Swelling behaviour, tensile properties at various strain rates and cure kinetics were characterized. Experimental data were analysed using the Flory–Rehner model as well as the tube model theory. It is found that the network structure of CB‐filled SBR follows a three‐phase composite model including rigid particles, semi‐rigid bound rubber and matrix rubber. This bound rubber is postulated to be critical for the mechanical and deformational properties, development of crosslinking density in matrix rubber and polymer–filler interaction. For MWCNT‐filled SBR, the bound rubber does not show a substantial contribution to the network structure and mechanical performance, and these properties are greatly dominated by the higher aspect ratio and polymer–filler interaction. Additionally it is deduced that the crosslinking density of matrix rubber increases on incorporation of the fillers compared to unfilled matrix rubber. Copyright © 2012 Society of Chemical Industry

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of carbon‐based nanoparticles on the cure characteristics and network structure of styrene–butadiene rubber vulcanizate

Saatchi

Shojaei

2012

Polymer International

View full text Add to dashboard Cite

show abstract

“…With constant time and temperature of vulcanization, if the ratio of accelerator to crosslink agent is maintained constant, it is stated in the literature that the crosslink density would be varied but the proportion of the crosslink types will remain constant [10,11]. Few of them also mentioned the different results [12,13]. Pearson and Bohem [14] have added carbon black (CB) to a non-crystallizing styrene-butadiene rubber (SBR) and obtained a single stress-strain curve for sulfur and peroxide vulcanizates revealing that the filler reinforcement nullifies the effect of crosslink structure if any.…”

Section: Introductionmentioning

confidence: 99%

Processing of styrene butadiene rubber–carbon black nanocomposites with gradation of crosslink density: Static and dynamic mechanical characterization

Ahankari

Kar

2008

Materials Science and Engineering: A

View full text Add to dashboard Cite

Schwefelvernetzungssysteme und netzwerkstrukturen im überblick

Eisele

1992

Angew. Makromol. Chem.

View full text Add to dashboard Cite

U ic A iige 1 \'NI I rlt c Mnli rain o I d u1ni.e Ch em ie 202/203 ( I 992) 63-85 (3 628) Summary: Sulfur crosslinking systems are well established for curing of rubbers containing olefinic bonds and are well optimized for various processing and end product requirements. This is achieved by the clever selection of accelerator or their combinations or varying sulfur to accelerator ratio. This ratio defines primarily the structure and density of the sulfur crosslinks. Semi efficient crosslinking systems allow in NR as in SBR best compromise of properties with respect t o processing, static and dynamic behaviour and ageing. In NR the structure of the crosslinks contrary t o SBR has a larger influence on dynamic crack propagation. Polysulfidic crosslinks are preferred for higher tensile strength, tear and fatigue resistance. Great challenges for accelerated sulfur crosslinking exist to meet new ecological and toxicological requirements such as avoidance of nitrosamines in rubber industry. The present work shows that there is a potential for new developments in the classical sulfur vulcanization to satisfy the present needs and meet the future challenges.Vortrag anla01 ich der Tagung Fachgruppe "Makromolekulare Chemie" der Gesell schaft Deutscher Chemi ker uber "Kautschuk-elastische Polymersysteme" in

show abstract

Influence of cure system concentration on crosslink structure in SBR sulphur vulcanizates

Cited by 6 publications

References 13 publications

Effect of carbon‐based nanoparticles on the cure characteristics and network structure of styrene–butadiene rubber vulcanizate

Effect of carbon‐based nanoparticles on the cure characteristics and network structure of styrene–butadiene rubber vulcanizate

Processing of styrene butadiene rubber–carbon black nanocomposites with gradation of crosslink density: Static and dynamic mechanical characterization

Schwefelvernetzungssysteme und netzwerkstrukturen im überblick

Contact Info

Product

Resources

About