Thermal and Mechanical Behavior of Carbon‐Nanotube‐Filled Latex

Grunlan, Jaime C.; Kim, Yeon-Seok; Ziaee, S.; Wei, Xin; Abdel‐Magid, Beckry; Tao, Kun

doi:10.1002/mame.200600191

Cited by 80 publications

(53 citation statements)

References 74 publications

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“…The percolation threshold of CPCs have been shown both experimentally and theoretically to decrease with filler aspect ratio 2, 3. CNTs have been extensively investigated as fillers for polymer nanocomposites,4–14 and their high aspect ratio and excellent conductivity makes them one of the best conductive nanofiller candidates for CPCs. It has been shown that CPCs based on CNTs can reach percolation thresholds as low as 0.0025 wt.‐% in low viscosity systems such as epoxy resins 11, 15, 16.…”

Section: Introductionmentioning

confidence: 99%

A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity

Deng

Zhang

Reynolds

et al. 2009

Macro Materials & Eng

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A new concept is described for the creation of multifunctional polymer nanocomposite tapes (or fibres) that combines high stiffness and strength with good electrical properties and a low percolation threshold of carbon nanotubes (CNTs). The concept is based on a bicomponent tape (or fibre) construction consisting of a highly oriented polymer core and a conductive polymer composite (CPC) skin based on a polymer with a lower melting temperature than the core, enabling thermal annealing of these skins to improve conductivity through a dynamic percolation process while retaining the properties of the core and hence those of the tape (or fibre). The percolation threshold in the CPC skins of the highly drawn conductive bicomponent tapes could be decreased from 5.3 to 1.1 wt.‐% after annealing.magnified image

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Section: Introductionmentioning

confidence: 99%

A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity

Deng

Zhang

Reynolds

et al. 2009

Macro Materials & Eng

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“…When combined with nanosized fillers, the polymer particles and the filler may create a peculiar segregated network. The corresponding material, after drying and 'hot compaction', may show excellent properties at very low filler concentration [3][4][5][6] compared to a melt blended version containing the same polymer and filler. The advantage of this latex compounding process is that the expensive chemical modification of the fillers can be avoided if the filler is itself water swellable or dispersible [7].…”

Section: Introductionmentioning

confidence: 99%

Nanofilled and/or toughened POM composites produced by water-mediated melt compounding: Structure and mechanical properties

Siengchin¹,

Karger‐Kocsis

Thomann³

et al. 2008

Express Polym. Lett.

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Abstract. Binary and ternary composites composed of polyoxymethylene (POM), polyurethane (PU) and synthetic boehmite alumina (AlO(OH)) were produced by water-mediated melt compounding technique. PU latex and/or aqueous alumina suspension were injected into the molten POM in a twin-screw extruder to prepare toughened and/or reinforced polymer composites. The dispersion of the alumina and PU was studied by transmission-and scanning electron microcopy techniques (TEM and SEM, respectively), and discussed. The crystallization of the POM-based systems was inspected by polarized optical microscopy (PLM). The mechanical and thermomechanical properties of the composites were determined in dynamic-mechanical thermal analysis (DMTA), short-time creep tests (performed at various temperatures), uniaxial static tensile and notched Charpy impact tests. Incorporation of alumina increased the stiffness and resistance to creep and reduced the tensile strength, elongation at break and impact toughness. The change in the above parameters was opposite for the POM/PU binary blends. Additional incorporation of alumina in the POM/PU blend enhanced the resistance to creep, elongation at break and maintained the impact toughness compared to the POM/PU blend.

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“…This phenomenon is likely a result of the larger bundles of SWNT having a greater resistance to bending, effectively increasing the stiffness over long distances. It should also be noted that these nanotubes are more strongly networked in their bundled state,18 which is known to enhance composite modulus 23…”

Section: Resultsmentioning

confidence: 99%

Replicating real‐time garbage collector

Kalibera

2010

Concurrency and Computation

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SUMMARYReal-time Java is becoming a viable platform for real-time applications, bringing new challenges to a garbage collector. A real-time collector has to be incremental as not to cause deadline misses by suspending an application for too long. In particular, if a real-time collector has to relocate objects in the heap, it must do so incrementally and transparently to the application. This is usually achieved via an indirection that has to be followed on every read and write to the heap.We present an alternative solution, based on object replication, which does not need any special handling for memory reads, but writes are more expensive: every value is written twice. As writes are less frequent than reads, the total overhead is reduced. With our implementation in a research real-time Java VM and DaCapo, pseudo-jbb, and SPEC JVM 98 benchmarks, we observe an average speed-up of 4% on a Linux/x86 platform.Compared to an existing technique for parallel systems, our technique targets uni-processor green-threading embedded systems, allowing us to design simpler and more predictable mutator barriers. Thanks to cheap synchronization provided by green threading, our technique features atomic writes to object replicas, providing programmers with the natural behavior in face of unprotected access to shared variables.

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Thermal and Mechanical Behavior of Carbon‐Nanotube‐Filled Latex

Cited by 80 publications

References 74 publications

A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity

A Novel Concept for Highly Oriented Carbon Nanotube Composite Tapes or Fibres with High Strength and Electrical Conductivity

Nanofilled and/or toughened POM composites produced by water-mediated melt compounding: Structure and mechanical properties

Replicating real‐time garbage collector

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