Effect of different cure systems on natural rubber/nanocellulose nanocomposites in rheological, physical-mechanical, aging, and mechanical properties

Honorato, Luciana Ribeiro; Visconte, Leila L. Y.; Nunes, Regina C. R.

doi:10.1177/00952443221077438

Cited by 8 publications

(3 citation statements)

References 46 publications

(101 reference statements)

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“…In the study conducted by Ceren and Yunus [15], a blend film was prepared by blending a natural rubber derivative containing acetate pendant groups (ANR) with PLA. The research results showed that the blend exhibited the best compatibility with PLA when the ANR content was 25wt%.…”

Section: Blending Modification Of Plamentioning

confidence: 99%

Research Progress in the Synthesis and Modification of Polylactic Acid

Liu

2024

HSET

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Polylactic acid (PLA) has garnered significant attention due to its advantages of excellent biodegradability, biocompatibility, and renewable raw materials. This article begins by briefly introducing the research progress in the synthesis and modification of PLA, as well as its specific applications such as medical sutures and textiles, and the pros and cons of PLA itself. It then provides a detailed overview of the direct polymerization methods of PLA, including melt condensation and solution polymerization, and ring-opening polymerization methods such as cationic, anionic, and coordination. The process mechanisms, advantages, and disadvantages of each method are discussed, along with their suitability for practical industrial production and current limitations. Several specific modification methods of PLA are also discussed, such as low-temperature plasma modification and blending modification, highlighting the advantages, disadvantages, and specific research examples. These modifications aim to improve the deficiencies of PLA in areas such as mechanical strength or biological activity, allowing PLA to be applied in specific fields. Ultimately, the goal is for PLA to replace petroleum-based plastics and achieve widespread application in order to reduce environmental impact.

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Section: Blending Modification Of Plamentioning

confidence: 99%

Research Progress in the Synthesis and Modification of Polylactic Acid

Liu

2024

HSET

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“…According to the ratio of sulfur/accelerator (S/A), it could be divided into common conventional (CV), semi-effective (SEV), effective (EV) systems [29][30][31]. Honorato et al investigated the different crosslink structures in in uencing the mechanical properties of NR composites, which demonstrated that CV system had the well-developed crosslink networks and improved tear strength through Penny effect and Gibbs free energy method [32]. Larpkasemsek and co-workers also demonstrated the highest crosslink density with CV system owned the good mechanical properties and the fastest vulcanized rate for epoxied NR composites [33].…”

Section: Introductionmentioning

confidence: 99%

The design of crosslinks in different vulcanized systems to improve crack growth resistance for carbon black/graphene oxide/natural rubber composites

et al. 2023

Adv Compos Hybrid Mater

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Herein, the carbon black/graphene oxide/natural rubber composites (CB/GO/NR) with different crosslink networks were prepared through the latex co-precipitation approach. Meanwhile, the type of crosslinks on the crack propagation resistance and fatigue life in different vulcanized systems were investigated. As a result, CB/GO/NR composites dominated by polysul de in conventional vulcanization (CV) system exhibited the improved tear strength (71.6 KN/m) and lowest crack growth rate (64.1 nm/cycle), the developed crosslink network and polysul de based crosslink structure in CV system were the key factors to improve the crack propagation resistance. In addition, the relationship between viscoelasticity and dynamic crack propagation behavior of CB/GO/NR was studied, and the CV system had the lowest loss compliance modulus( J "), thus more energy dissipation occurred in the crack propagation region and the crack propagation resistance of CV system was improved. Importantly, this work can provide the guideline for designing the rubber-based composites in the practical engineering applications.

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“…The results revealed that the polymer matrix next to CB particles can accelerate the reconstruction of the filler–polymer network, thereby enhancing the reversibility of the Payne effect [ 12 , 13 , 14 ]. CB, along with other fillers, such as spherical [ 15 , 16 , 17 ] and fibrous [ 18 , 19 , 20 ], have excellent electrical and thermal conductivity, which significantly affects Payne effect improvement. Experimental research can satisfactorily explain the Payne effect of mixed rubber filling.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cross-Linking Density on Non-Linear Viscoelasticity of Vulcanized SBR: A MD Simulation and Experimental Study

Yan

Wang

Zhao

et al. 2023

IJMS

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In recent years, there has been a growing interest in changes in dynamic mechanical properties of mixed rubber during dynamic shear, yet the influence of vulcanized characteristics on the dynamic shear behavior of vulcanized rubber, particularly the effect of cross-linking density, has received little attention. This study focuses on styrene–butadiene rubber (SBR) and aims to investigate the impact of different cross-linking densities (Dc) on dynamic shear behavior using molecular dynamics (MD) simulations. The results reveal a remarkable Payne effect, where the storage modulus experiences a significant drop when the strain amplitude (γ0) exceeds 0.1, which can be attributed to the fracture of the polymer bond and the decrease in the molecular chain’s flexibility. The influence of various Dc values mainly resides at the level of molecular aggregation in the system, where higher Dc values impede molecular chain motion and lead to an increase in the storage modulus of SBR. The MD simulation results are verified through comparisons with existing literature.

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Effect of different cure systems on natural rubber/nanocellulose nanocomposites in rheological, physical-mechanical, aging, and mechanical properties

Cited by 8 publications

References 46 publications

Research Progress in the Synthesis and Modification of Polylactic Acid

Research Progress in the Synthesis and Modification of Polylactic Acid

The design of crosslinks in different vulcanized systems to improve crack growth resistance for carbon black/graphene oxide/natural rubber composites

Effect of Cross-Linking Density on Non-Linear Viscoelasticity of Vulcanized SBR: A MD Simulation and Experimental Study

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