Characterization of effects of thermal-oxidative aging on styrene-butadiene rubber/silica composites with vitamin C-lanthanum complex

Zhong, Bangchao; Jia, Zhixin; Shi, Qifeng; Yang, Chao; Luo, Yuanfang; Jia, Demin

doi:10.1080/1023666x.2015.1081235

Cited by 18 publications

(8 citation statements)

References 33 publications

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“…Figure a–e presents the TG-DTG curves of the SBR/silica composite containing various antioxidants at four different heating rates (10, 20, 30, 40 °C·min –1 ) in air atmospheres, respectively. As illustrated in Figure a–e, the TG-DTG curves of SBR/silica composites at different heating rates are similar, indicating that the thermal-oxidative degradation mechanism of SBR/silica composites is less affected by the heating rate . In addition, with the increasing of heating rates, the peak temperature gradually shifts toward high temperature.…”

Section: Resultsmentioning

confidence: 73%

Antioxidative Behavior of an Eco-Friendly Chitosan-Based Biomass Macromolecular Antioxidant for Styrene–Butadiene Rubber (SBR)/Silica Composites

Xie,

Wu,

Huang

et al. 2023

ACS Appl. Polym. Mater.

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In this work, an eco-friendly chitosan-based biomass macromolecular antioxidant containing double bonds and polyphenol structure (COS-UC-GA), prepared by coupling 10-undecenoyl chloride (UC) and gallic acid (GA) onto chitosan (COS), was employed as an antioxidant for styrene–butadiene rubber (SBR)/silica composites. Its effects on the anti-aging properties of SBR/silica composites were systematically explored. The corresponding small molecular organic compound gallic acid (GA), commercial antioxidant butylated hydroxytoluene (BHT), and N-isopropyl-N′-pheny-p-phenyl-ene diamine (4010NA) were used as control samples. The results of the accelerated thermal-oxidative aging test, crosslinking density test, and thermogravimetric (TG) test demonstrated that the chitosan-based biomass macromolecular antioxidant COS-UC-GA can significantly enhance the anti-aging properties, thermal stability, and apparent activation energy (E) of SBR/silica composites. Moreover, the results of the extraction resistance test indicated that the chitosan-based biomass macromolecular antioxidant COS-UC-GA can present better migration resistance and extraction resistance in SBR/silica composites compared to the corresponding small molecular organic compound GA, commercial antioxidant BHT, and 4010NA. The superior antioxidative properties of the chitosan-based biomass macromolecular antioxidant COS-UC-GA for SBR/silica composites originated from the synergistic antioxidative effects between amine or amide groups of COS-UC-GA and polyphenol structure as well as the outstanding migration resistance and volatilization resistance of COS-UC-GA. The eco-friendly chitosan-based biomass macromolecular antioxidant COS-UC-GA can be used as a promising green candidate in the rubber industry to replace traditional small molecular antioxidants.

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Section: Resultsmentioning

confidence: 73%

Antioxidative Behavior of an Eco-Friendly Chitosan-Based Biomass Macromolecular Antioxidant for Styrene–Butadiene Rubber (SBR)/Silica Composites

Xie,

Wu,

Huang

et al. 2023

ACS Appl. Polym. Mater.

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“…In past research, the change in mechanical properties caused by high-temperature treatment was considered to be caused by the thermal degradation of the rubber [ 14 , 15 , 16 ]. It is reported that under the effect of high temperatures, the FKM undergoes a cross-linking reaction.…”

Section: Resultsmentioning

confidence: 99%

“…However, under the effect of high temperature, it was observed that the mechanical properties of the rubber material altered. As the polymer, the molecular link of the rubber is easy to break due to the hot environment, which increases the cross-linking density [ 14 , 15 , 16 ]. Moreover, some of the broken molecular links form a new fragile molecular chain (compared to the chain before the break) through cross-linking.…”

Section: Introductionmentioning

confidence: 99%

Effect of Thermal Degradation of FKM on Three-Body Abrasion under Dry Sliding: Severe Damage Led by the Particle Detention

et al. 2021

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Both the high temperature and particle environment at the downhole greatly aggravate the abrasive wear and shorten the service life of the fluororubber (FKM) seal seriously in drilling engineering. At present, there is less awareness of the tribological behavior of seals in such complex working conditions. In this work, the abrasive wear performance of the thermally degraded FKM seal was tested in the form of simulating the intrusion of abrasive particles into the interface. Results show that the wear of both rubber seals and metal counterparts is exacerbated. Through the analysis of the wear scar morphology and friction coefficient, it is revealed that more abrasive caves scatter on the surface due to the mechanical degradation of the FKM. These abrasion caves reduce the tendency of particles to escape from the caves and prolong the abrasive action. Furthermore, the abrasion cave alters the particle motion from sliding to rolling, which leads to more caves generated on the surface of the hard tribo-pair. These results enhance the understanding of the abrasive wear for FKM seals and hopefully contribute to the promotion of seals used in hot abrasive particle environments.

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“…From Figure a, it can be found that there is an obvious exothermic peak for each DSC curve due to the oxidation of the double bond for rubber chains. Here, the thermal oxidative stability of rubber composites can be reflected by the value of T max . Compared with SBR/m-MS/4010NA composites with equal antioxidant and filler components, SBR/RT@MS composites give much higher values of T max at any heating rates, indicating that RT@MS can endow SBR with better thermal oxidation resistance than antioxidant 4010NA.…”

Section: Resultsmentioning

confidence: 99%

“…Here, the thermal oxidative stability of rubber composites can be reflected by the value of T max . 28 Compared with SBR/m-MS/4010NA composites with equal antioxidant and filler components, SBR/RT@MS composites give much higher values of T max at any heating rates, indicating that RT@ MS can endow SBR with better thermal oxidation resistance than antioxidant 4010NA. Several reasons can be introduced to explain the outstanding antioxidative efficiency of RT@MS. First, compared with free antioxidant 4010NA, chemically immobilized RT on the surface of mesoporous silica can effectively restrict its migration and volatilization at elevated temperature.…”

Section: Dynamic Mechanical Analysis Of Sbr Compositesmentioning

confidence: 99%

Enhanced Mechanical Performance and Antioxidative Efficiency of Styrene–Butadiene Rubber via 4-Aminodiphenylamine Functionalized Mesoporous Silica

Lin

Luo

et al. 2018

Ind. Eng. Chem. Res.

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We reported newly prepared functionalized nanoparticles (RT@MS) using mesporous silica (MS) with antioxidant intermediate 4aminodiphenylamine (RT) via the linkage of KH-560. RT@MS was used as a nanofiller to fabricate styrene−butadiene rubber (SBR) composites. Under the condition of equal antioxidant and filler components, functionalized mesoporous silica can greatly enhance the mechanical properties of SBR owing to the uniform dispersion and strong interfacial interaction between SBR and RT@MS. Besides, the antiaging behavior of SBR/RT@MS composites was systematically evaluated by thermal oxidation exothermic enthalpies and oxidation induction time before and after solvent extraction. The results indicated that RT@MS showed much better thermal and oxidative stabilities and longer service life than the most commonly used antioxidant Nisopropyl-N′-phenyl-4-phenylenediamine in SBR due to the improved migration resistance of immobilized RT.

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Characterization of effects of thermal-oxidative aging on styrene-butadiene rubber/silica composites with vitamin C-lanthanum complex

Cited by 18 publications

References 33 publications

Antioxidative Behavior of an Eco-Friendly Chitosan-Based Biomass Macromolecular Antioxidant for Styrene–Butadiene Rubber (SBR)/Silica Composites

Antioxidative Behavior of an Eco-Friendly Chitosan-Based Biomass Macromolecular Antioxidant for Styrene–Butadiene Rubber (SBR)/Silica Composites

Effect of Thermal Degradation of FKM on Three-Body Abrasion under Dry Sliding: Severe Damage Led by the Particle Detention

Enhanced Mechanical Performance and Antioxidative Efficiency of Styrene–Butadiene Rubber via 4-Aminodiphenylamine Functionalized Mesoporous Silica

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