Multiscale effect of graphene oxide with short carbon fiber for property improvement of room temperature vulcanized silicone rubber

Liu, Yun Fang; Duan, Hongying; Huang, Qigu

doi:10.1007/s00289-021-03919-z

Cited by 8 publications

(9 citation statements)

References 41 publications

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“…Considering the two-dimensional morphology of GO in this work, vinyltriethoxysilane was selected because of its short chain in this work. The contact angle of vinyl-GO is 133° ( Figure 2 B), suggesting that vinyl-GO has a hydrophobic surface and presumably has a good interfacial compatibility with SR. Generally, a good interfacial compatibility in organic–inorganic composites accounts for a high reinforced thermal conductivity, thermal stability, and other properties [ 31 , 32 , 33 , 34 , 35 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…Improved interfacial compatibility could allow polymer-based nanocomposites to achieve satisfactory thermal conductivity or antistatic properties [ 31 , 32 , 33 , 34 , 35 , 36 ]. Hu Chen et al [ 31 ] reported that graphene modified by 3-glycidyloxypropyltrimethoxysilane allows uniform dispersion in polymers.…”

Section: Introductionmentioning

confidence: 99%

“…SR reinforced with graphene or its derivatives through the vulcanization reaction of SR with peroxide has been reported [ 35 , 36 ]. The cross-linked structures in the reported SR nanocomposites are formed from radical initiation.…”

Section: Introductionmentioning

confidence: 99%

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Thermally Conductive and Antistatic Properties of Silicone Rubber Reinforced by the Modified Graphene Oxide

Dong

Chen

et al. 2022

Polymers

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Silicone rubber (SR)/vinyl-graphene oxide (vinyl-GO) nanocomposites were prepared through the hydrosilylation reaction of silicon hydrogen polydimethylsiloxane (H-PDMS) with vinyl polydimethylsiloxane (vinyl-PDMS), in which vinyl-GO was used as a nano filler. The thermally conductive and antistatic properties of the nanocomposites, and their tensile strength and thermal stability were evaluated. The thermally conductive and antistatic properties increased naturally when the nanocomposites had eight to nine parts of vinyl-GO. The addition of 9 parts of vinyl-GO increased the thermal conductivity to 0.44 from 0.17 W/m−1·K−1 of neat SR and the surface resistance value to 108 from 1014 Ω of neat SR. Vinyl-GO is effective in improving the tensile strength and toughness of the nanocomposites. The tensile strength and elongation at break of the nanocomposites were much higher than that of neat SR, especially for 10 parts of vinyl-GO in the nanocomposite, and the tensile strength was 1.84 MPa and the elongation at break was 314.1%. Additionally, compared with neat SR, the nanocomposites had a much higher thermal stability. For eight parts of vinyl-GO in the nanocomposites, H-PDMS with the selected silicon hydrogen content and vinyl-PDMS with the selected vinyl content could offer an appropriate cross-linking degree that suits the character of GO. When the nanocomposite had eight parts of vinyl-GO, its scanning electron microscope exhibited a monolayer GO with folded, twisted, and local surface folds. However, there was a certain amount of multilayer aggregation of GO for 10 parts of vinyl-GO in the nanocomposite.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermally Conductive and Antistatic Properties of Silicone Rubber Reinforced by the Modified Graphene Oxide

Dong

Chen

et al. 2022

Polymers

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“…l -Cysteine is grafted on the surface of GO@GNP by reacting its amino group with the carboxyl group on GO. 43,69,70 Consequently, l -cysteine functionalized GO@GNP forms a stronger covalent bond with CC in the rubber molecular chain resulting in an improvement of thermal conductivity by 325% compared to the untreated GO@GNP. 43 Likewise, in the preparation of gelatin functionalized rGO, the amide group (–C–N–) is formed between the carboxyl group of GO and the amino group of gelatin with the aid of a carboxyl activator and catalyst by stirring for 12 hours at 0 °C and centrifugation, as shown in Fig.…”

Section: Graphenementioning

confidence: 99%

Graphene in rubber formulations: a comprehensive review and performance optimization insights

Leong,

Lim,

Ibrahim

2023

Mol. Syst. Des. Eng.

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“…However, the addition of a large number of inorganic fillers impairs the flexibility and processability of the ablative composites. Moreover, the thermal conductivity and density are increased as well, which are not favorable for their practical application as flexible ablative composites [ 18 , 19 , 20 , 21 ]. Hexaphenoxycyclotriphosphonitrile (HPCTP), which contains a molecular skeleton structure with alternating P and N atoms and multiple external aromatic units, has been widely employed to improve the flame retardancy of silicone rubber [ 22 ] and many other polymers [ 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

et al. 2023

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The ablative properties of epoxy-modified vinyl silicone rubber (EMVSR) composites containing hexaphenoxycyclotriphosphonitrile (HPCTP) have been systematically studied. The strength of the ablation char layer was greatly enhanced with the addition of HPCTP, which induced the formation of a more complete, denser, and thicker char during oxyacetylene ablation tests. Moreover, the HPCTP-containing EMVSR composites demonstrated lower thermal conductivity and pyrolysis rate when compared with those without HPTCP. At the same time, the thermal insulation properties of HPCTP-filled composites were improved under low heat flow ablation scenarios. The reduction of graphitic carbon content, the formation of phosphate-like crystals as well as the increase of SiC content contributed to strengthening the char layer, which was critical for improving the ablation properties. The optimum char layer strength and thermal insulation properties were achieved when the content of HPCTP was 15 phr, whereas an optimum ablation resistance was achieved at 25 phr HPCTP. This suggests that HPCTP-modified EMVSR composites can be used for thermal protection purposes, especially in the fields of aerospace and aeronautics.

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Multiscale effect of graphene oxide with short carbon fiber for property improvement of room temperature vulcanized silicone rubber

Cited by 8 publications

References 41 publications

Thermally Conductive and Antistatic Properties of Silicone Rubber Reinforced by the Modified Graphene Oxide

Thermally Conductive and Antistatic Properties of Silicone Rubber Reinforced by the Modified Graphene Oxide

Graphene in rubber formulations: a comprehensive review and performance optimization insights

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

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