Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

Wei, Haitao; Guo, Lili; Zheng, Jian; Huang, Guangsu; Li, Guangxian

doi:10.1039/c5ra08951d

Cited by 25 publications

(16 citation statements)

References 31 publications

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“…The heavy hammer was released from a horizontal position, then struck the foamed sample at a vertical point and went back to a certain height. The cross-linking density of the sample was determined using the swelling method28. Compression set, defined as the measurement of permanent deformation of foams, was tested by Compression Permanent Deformation Instrument (Xihua, Guangdong, China).…”

Section: Methodsmentioning

confidence: 99%

The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams

Shao

et al. 2016

Sci Rep

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Sulfur (S) cross-linking styrene butadiene rubber (SBR) foams show high shrinkage due to the cure reversion, leading to reduced yield and increased processing cost. In this paper, double cross-linking system by S and dicumyl peroxide (DCP) was used to decrease the shrinkage of SBR foams. Most importantly, the synergy of double cross-linking agents was reported for the first time to our knowledge. The cell size and its distribution of SBR foams were investigated by FESEM images, which show the effect of DCP content on the cell structure of the SBR foams. The relationships between shrinkage and crystalline of SBR foams were analyzed by the synergy of double cross-linking agents, which were demonstrated by FTIR, Raman spectra, XRD, DSC and TGA. When the DCP content was 0.6 phr, the SBR foams exhibit excellent physical and mechanical properties such as low density (0.223 g/cm3), reduced shrinkage (2.25%) and compression set (10.96%), as well as elevated elongation at break (1.78 × 103%) and tear strength (54.63 N/mm). The results show that these properties are related to the double cross-linking system of SBR foams. Moreover, the double cross-linking SBR foams present high electromagnetic interference (EMI) shielding properties compared with the S cross-linking SBR foams.

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Section: Methodsmentioning

confidence: 99%

The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams

Shao

et al. 2016

Sci Rep

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“…Wei et al . further investigated the thermo‐oxidation resistance of SBR/RT‐silica composites with various filler contents.…”

Section: Nanosilica‐immobilized Antioxidantsmentioning

confidence: 99%

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Liu

Wang

et al. 2018

Polymer International

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Antioxidants are used to improve the thermo-oxidative stability of polymers during processing and to prolong the service life of polymer materials. Immobilizing antioxidants onto nanoparticles is one of the approaches for reducing their physical losses. Research on the design, synthesis and application of nanoparticle-immobilized antioxidants is reviewed in this article. These kinds of 'nano-antioxidants' reveal good resistance against extraction and show good antioxidative efficiency during long-term thermal aging, and therefore will have great potential in practical use for improving the stability of polymer materials.

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“…One of the effective methods to evaluate the ability of the antioxidant is to measure the OIT of the polymer materials. 34,35 The OIT is defined as the time for the sample beginning to be oxidized at certain temperature under oxygen atmosphere. Figure 5 shows the OIT curves of NR vulcanizates with various antioxidants.…”

Section: Antioxidation Efficiency Of Cmcr and Its Derivativesmentioning

confidence: 99%

Phenolic antioxidants based on calixarene: Synthesis, structural characterization, and antioxidative properties in natural rubber

Zhong

et al. 2017

J of Applied Polymer Sci

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C‐methylcalix[4]resorcinarene (CMCR) was first synthesized by condensation reaction between resorcinol and acetaldehyde, and then used as functional monomer to prepare two CMCR derivatives including CMCR‐1 and CMCR‐2 with four ethoxymethyl chains and four hexylthiolmethyl chains, respectively. The structures of CMCR and its derivatives were confirmed by Fourier transform infrared spectroscopy and high‐resolution mass spectrometry. Thermogravimetric analysis revealed CMCR, CMCR‐1, and CMCR‐2 had superior thermal stability than commercial antioxidant 2,6‐di‐tert‐butyl‐4‐methylphenol. Oxidation induction time and accelerated thermal aging tests indicated that CMCR‐2 exhibited excellent antioxidative property in natural rubber, which was due to multiphenol groups, big steric hindrance, and synergistic effect between thiother and hindered phenol. Importantly, CMCR‐2 also possessed outstanding extraction resistance. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45144.

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Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

Cited by 25 publications

References 31 publications

The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams

The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams

Synthesis of nanoparticle‐immobilized antioxidants and their antioxidative performances in polymer matrices: a review

Phenolic antioxidants based on calixarene: Synthesis, structural characterization, and antioxidative properties in natural rubber

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