Enhanced gas barrier properties of graphene oxide/rubber composites with strong interfaces constructed by graphene oxide and sulfur

Zheng, Long; Jerrams, Stephen; Xu, Zhiqiang; Zhang, Liqun; Liu, Li; Wen, Shipeng

doi:10.1016/j.cej.2019.123100

Cited by 84 publications

(37 citation statements)

References 44 publications

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“…This value was similar to the Nanomechanic analysis using peak-force quantitative nanomechanical atomic force microscopy (AFM) indicated the average Young's modulus of the GP-GED-TA particles was 311.5 ± 80.2 MPa (n = 35, calculated from arithmetic mean value in Figure 4). This value was similar to the results of protein-based particles [34,35], but larger than the inorganic particles [36,37]. This indicated the GP-GED-TA particles were soft.…”

Section: Characterization Of Gel Particlessupporting

confidence: 85%

Gelatin Hydrolysate Hybrid Nanoparticles as Soft Edible Pickering Stabilizers for Oil-In-Water Emulsions

Wang

2020

Molecules

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The aim of this study was to fabricate edible gelatin enzymic digest (GED) based gel particles that can stabilize oil-in-water (O/W) microemulsions. The gel particles were generated by covalent crosslinking, with genipin, the individual protein molecules within tannic acid-induced gelatin hydrolysate (GED-TA) particles. The ability of the genipin-treated GED-TA (GP-GED-TA) to stabilize emulsions was evaluated by Turbiscan analysis and droplet-size changes. For comparison, gelatin hydrolysate (GE) and tannic acid-induced gelatin hydrolysate particles (GED-TA) were used as controls. The mean diameters of GED, GED-TA, and GP-GED-TA particles were 0.68 ± 0.1 nm, 66.2 ± 8.4 nm, and 66.9 ± 7.2 nm, respectively. Nanomechanic analysis using atomic force microscopy(AFM) indicated the average Young’s modulu of the GP-GED-TA particles was 760.8 ± 112.0 Mpa, indicating the GP-GED-TA were soft particles. The Turbiscan stability indexes (lower values indicate a more stable emulsion) of the emulsions stabilized with GED, GED-TA, and GP-GED-TA, after storage for three days, were 28.6 ± 1.5, 19.3 ± 4.8, and 4.4 ± 1.3, respectively. After one, or 60 days of storage, the volume-weighted mean diameters (D[4,3]) of oil droplets stabilized by GP-GED-TA were 1.19 ± 0.11 μm and 1.18 ± 0.1 µm, respectively. The D[4,3] of oil droplets stabilized by GED-TA, however, increased from 108.3 ± 5.1 μm to 164.3 ± 19.1 μm during the storage. Overall, the GP-GED-TA gel particles have considerable potential for stabilization of O/W emulsions in food products.

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Section: Characterization Of Gel Particlessupporting

confidence: 85%

Gelatin Hydrolysate Hybrid Nanoparticles as Soft Edible Pickering Stabilizers for Oil-In-Water Emulsions

Wang

2020

Molecules

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“…CNTs easily entangle with each other due to their large aspect ratios. Therefore, CNT bundles with lengths of up to 50 µm and diameters between 6 and 8 nm were chosen as they easily dispersed into the rubber composites via mechanical blending [ 21 , 22 , 23 ]. The CNT bundles were added into the GO/NR masterbatch to obtain the CNT-GO/NR composite via mechanical blending.…”

Section: Methodsmentioning

confidence: 99%

“…Graphene (GE) comprise large lamellar structures [ 15 , 16 ] and carbon nanotubes (CNTs) exhibit high aspect ratios [ 17 , 18 ]; therefore, they have been extensively studied as fillers in rubber composites. Dong et al [ 19 ] and Xu et al [ 20 ] introduced GE or CNTs as fillers to the rubber matrix; they discovered that the addition of even a small amount of GE or CNTs tend to significantly improve the electrical [ 21 ] and thermal conductivity [ 22 ], air tightness [ 23 ], and fatigue properties of the rubber composites. However, large GE agglomerates were easily formed due to Van der Waals forces between GE sheets.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Fatigue and Durability Properties of Natural Rubber Composites Reinforced with Carbon Nanotubes and Graphene Oxide

Guo

Halász

et al. 2020

Materials

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Fibrous carbon nanotubes (CNTs) and lamellar graphene oxide (GO) exhibit significant advantages for improving the fatigue properties of rubber composites. In this work, the synergistic effect of CNTs and GO on the modification of the microstructure and fatigue properties of natural rubber (NR) was comprehensively investigated. Results showed that CNTs and GO were interspersed, and they formed a strong filler network in the NR matrix. Compared with those of CNT/NR and GO/NR composites, the CNT-GO/NR composites showed the smallest crack precursor sizes, the lowest crack growth rates, more branching and deflections, and the longest fatigue life.

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“…Ratnayake et al successfully dispersed the montmorillonite into the natural rubber latex matrix and got a tremendous increase in the mechanical properties with high interfacial compatibility [ 26 ]. Yang et al modified the graphene oxide with octadecylamine (ODA) and reinforced into brominated butyl rubber (BIIR) This modification helps to improve the dispersion of the filler in rubber matrix and results excellent tortuous diffusion pathway for enhanced barrier properties [ 27 ]. Zhong et al improved the gas barrier properties by introducing sulfur–graphene oxide hybrids to the styrene butadiene rubber matrix.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Graphene Oxide and Nanoclay Based Hybrid Filler in Chlorobutyl-Natural Rubber Blend for Advanced Gas Barrier Applications

et al. 2021

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Nanomaterials have engaged response from the scientific world in recent decades due to their exceptional physical and chemical properties counter to their bulk. They have been widely used in a polymer matrix to improve mechanical, thermal, barrier, electronic and chemical properties. In rubber nanocomposites, nanofillers dispersion and the interfacial adhesion between polymer and fillers influences the composites factual properties. In the present work, a comparison of the hybrid effects of carbon black with two different nanofillers (graphene oxide and nanoclay) was studied. The 70/30 composition of chlorobutyl rubber/natural rubber elastomer blend was taken as per the blend composition optimized from our previous studies. The hybrid effects of graphene oxide and nanoclay in dispersing the nanofillers were studied mainly by analyzing nanocomposite barrier properties. The results confirm that the combined effect of carbon black with graphene oxide and nanoclay could create hybrid effects in decreasing the gas permeability. The prepared nanocomposites which partially replace the expensive chlorobutyl rubber can be used for tyre inner liner application. Additionally, the reduction in the amount of carbon black in the nanocomposite can be an added advantage of considering the environmental and economic factors.

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Enhanced gas barrier properties of graphene oxide/rubber composites with strong interfaces constructed by graphene oxide and sulfur

Cited by 84 publications

References 44 publications

Gelatin Hydrolysate Hybrid Nanoparticles as Soft Edible Pickering Stabilizers for Oil-In-Water Emulsions

Gelatin Hydrolysate Hybrid Nanoparticles as Soft Edible Pickering Stabilizers for Oil-In-Water Emulsions

Enhanced Fatigue and Durability Properties of Natural Rubber Composites Reinforced with Carbon Nanotubes and Graphene Oxide

Assessment of Graphene Oxide and Nanoclay Based Hybrid Filler in Chlorobutyl-Natural Rubber Blend for Advanced Gas Barrier Applications

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