Rheological characteristics and relaxation properties of polymer-nanodiamond composites

Gavrilov, A. S.; Voznyakovskii, А. P.

doi:10.1134/s1070427209060214

Cited by 18 publications

(6 citation statements)

References 2 publications

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“…The reinforcement of PDMS with glass beads in combination with 0.1 wt.% as received-ND decreased the mechanical stress. Viscosity measurement of the melt illustrated that the PDMS molecules confirmation was changed by ND resulting in improved mechanical properties[224]. Moreover polyurethane-2-hydroxymethylmethacrylate (PU-PHEMA/ND) composites with improved properties were reported.…”

mentioning

confidence: 98%

A Review on Polymeric Nanocomposites of Nanodiamond, Carbon Nanotube, and Nanobifiller: Structure, Preparation and Properties

Jabeen

Kausar

Muhammad

et al. 2015

Polymer-Plastics Technology and Engineering

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In this review, an overview of various types of nanofillers is presented with special emphasis on structure, synthesis and properties of carbon nanotube (CNT), nanodiamond (ND) and nanobifiller of CNT/ND, CNT/GO and CNT/graphene. In addition, polymer/CNT, polymer/ND and polymer/nanobifiller composites have been discussed.The efficacy of different fabrication techniques for nanocomposites (solution casting, insitu and melt blending method) and their properties were also discussed in detail. Finally, we have summarized the challenges and future prospects of polymer nanocomposites reinforced with carbon nanofillers hoping to facilitate progress in the emerging area of nanobifiller technology. INTRODUCTIONAmong the unique properties of polymer/nanomaterials, large surface to volume ratios and mechanical properties are noteworthy. These properties offer several exciting areas of research. The ultra high stiffness and hardness exhibited by nanomaterials make them important in reinforcing polymer matrices. According to recent research small additions of nanomaterials (~ 1 wt. %) may remarkably increase the mechanical properties (upto100%) although the precise mechanism responsible for the dramatic enhancement is not clearly understood [1,2]. It is generally believed that nanomaterials and polymer matrices develop molecular interactions which play a major role in enhancement. The key which hold true for the enhancement in mechanical properties is large surface area available for such interactions.In recent years variety of nanomaterials were synthesized and characterized, among them nanocarbons are of particular interest with different dimensionalities e.g. graphene, nanotubes and nanodiamond with dimensionalities two, one, and zero respectively [3,4].The mechanical properties of the polymer matrices reinforced with one type of nanocarbons have been extensively investigated [5]. Nature of interaction of nanocarbons constituents with polymer matrix depends on the dimensionality of filler constituent. For example the nanodiamond (ND) may interact with polymer at a point Downloaded by [New York University] at 14:08 04 August 2015 3 whereas carbon nanotubes (CNT) may interact over the length of polymer chain. However mechanical properties of polymer matrix have been known to improve by different type of nanocarbons. The synergistic effect in properties of final composite may be achieved by the incorporation of two types of nanocarbons, where each of them interacts differently with the matrix. CNT offers venues of exciting areas of research since Iijima initially identified CNT structure in 1991. CNT have unique thermal, electrical, mechanical and magnetic properties, high surface area, low density and high chemical stability. The diameter of the CNT usually ranges from 0.4-4 nm. The length of the nanotubes can vary from 100 nm to several micrometers depending on the preparation and purification methods used. Their uses are being extensively investigated for polymer composites, field emission displays, fabrication of reinforc...

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confidence: 98%

A Review on Polymeric Nanocomposites of Nanodiamond, Carbon Nanotube, and Nanobifiller: Structure, Preparation and Properties

Jabeen

Kausar

Muhammad

et al. 2015

Polymer-Plastics Technology and Engineering

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“…Here, we focus on the change of the Young’s modulus with two different kinds of ND particles, either oxidized or reduced ND particles, and the change upon increasing ND particle concentration. Gogotsi and Voznyakovskii suggested that the addition of a low amount of ND particles enhances the mechanical properties of PDMS [33,45]. Therefore, bulk PDMS/ND composites with oND and rND particles were prepared.…”

Section: Resultsmentioning

confidence: 99%

“…This behavior suggests at least two concurrent effects: one process increases the Young’s modulus while the second decreases the Youngs’s modulus. Several authors, who have engaged with polymer reinforcement by nanoparticles, have suggested that a reduction of the Young’s modulus is related to chain distortions, and this effect gets more drastic with increasing aggregation of the nanoparticles [45], while a reinforcing effect may be related to polar interactions or bond formation induced by or with the oND particles (see FTIR analysis).…”

Section: Resultsmentioning

confidence: 99%

Polydimethylsiloxane/Nanodiamond Composite Sponge for Enhanced Mechanical or Wettability Performance

Zhao

Wang

et al. 2019

Polymers

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Polydimethylsiloxane (PDMS) is widely utilized in material science, chemical engineering, and environmental science due to its excellent properties. By utilizing fillers, so-called composite materials can be obtained with enhanced mechanical, wettability, or thermal conductivity performance. Here, we present a simple, cost-effective approach to vary either the mechanical properties (Young’s modulus) or surface wettability of bulk PDMS and PDMS sponges simply by adding nanodiamond filler with different surface terminations, either oxidized (oND) or hydrogenated (reduced, rND) nanodiamond. Minuscule amounts of oxidized nanodiamond particles as filler showed to benefit the compressive Young’s modulus of composite sponges with up to a 52% increase in its value, while the wettability of composite sponges was unaffected. In contrast, adding reduced nanodiamond particles to PDMS yielded inclined water contact angles on the PDMS/nanodiamond composite sponges. Finally, we show that the PDMS/rND composites are readily utilized as an absorbent for oil/water separation problems. This signifies that the surface termination of the ND particle has a crucial effect on the performance of the composite.

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“…Viscosity measurements of the melts suggest that ND changes the conformation of PDMS molecules, resulting in improved mechanical properties [60]. Even at low concentrations and without surface functionalization, ND can reinforce some thermoplastics.…”

Section: Thermoplastic-nd Compositesmentioning

confidence: 99%

Advances in Surface Chemistry of Nanodiamond and Nanodiamond–Polymer Composites

Neitzel

Mochalin

Gogotsi

2012

Ultananocrystalline Diamond

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Rheological characteristics and relaxation properties of polymer-nanodiamond composites

Cited by 18 publications

References 2 publications

A Review on Polymeric Nanocomposites of Nanodiamond, Carbon Nanotube, and Nanobifiller: Structure, Preparation and Properties

A Review on Polymeric Nanocomposites of Nanodiamond, Carbon Nanotube, and Nanobifiller: Structure, Preparation and Properties

Polydimethylsiloxane/Nanodiamond Composite Sponge for Enhanced Mechanical or Wettability Performance

Advances in Surface Chemistry of Nanodiamond and Nanodiamond–Polymer Composites

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