Preparation of low density polyethylene-based polyaniline conducting polymer composites with low percolation threshold via extrusion

Yang, Junlong; Rannou, P.; Planès, J.; Proń, A.; Nechtschein, M.

doi:10.1016/s0379-6779(97)04093-9

Cited by 93 publications

(23 citation statements)

References 14 publications

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“…12, 13 Fryczkowski et al 14 showed that the conductivity of PP/PANi composites with lauryl gallate as the plasticizer depends on the gallate content. 14 Extensive scientific interest has been focused on the combination of PANi and CNT.…”

Section: Introductionmentioning

confidence: 99%

Conductive plastics with hybrid materials

Immonen

Nättinen

Sarlin

et al. 2009

J of Applied Polymer Sci

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Hybrid materials of conducting polyaniline (PANi) and multiwalled carbon nanotubes (CNTs) were synthesized using an in situ polymerization method. The resulting CNTs with a thin layer of PANi coating were further compounded with polypropylene to produce electrically conductive composite material. The PANi coating was found to enhance the CNT dispersion in PP. An amphiphilic component was also used as a surfactant to further enhance the dispersion. With these methods and materials, a conductivity of 26 S cm À1 was obtained. The conductivity of the hybrid material far exceeded that of the separately compounded mixture and of that prepared of lower aspect ratio conductive materials: carbon nanofibers and carbon black. The level of conductivity qualifies the material for use in applications requiring electromagnetic interference shielding. By adjusting the PANi loading, the conductivity can be tuned down to obtain materials suitable for electrostatic discharge applications.

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Section: Introductionmentioning

confidence: 99%

Conductive plastics with hybrid materials

Immonen

Nättinen

Sarlin

et al. 2009

J of Applied Polymer Sci

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“…The modification of CB with polyaniline can effectively decrease the contact resistivity of CB particles compared with that of CB modified with nonconductive coupling agents. In addition, since PANI doped with DBSA (see below, PANI DBSA ) possesses excellent processing and dispersion in nonpolar polymers, [19,20] PANI DBSA in polyolefin composites can create a more perfectly conductive filler network compared to a nonmodified CB network in the same matrix, which makes the prepared composites having a low percolation threshold. Thus, CB modified with PANI DBSA is expected to improve the electrical properties of polyolefin/CB composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Black Modified with Polyaniline on Resistivity Behavior of Polyethylene/Carbon Black Composites

Wang

Huang

et al. 2007

Journal of Macromolecular Science, Part B

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To obtain a reproducible positive temperature coefficient (PTC) composite with acceptable PTC effect, carbon black (CB) modified with polyaniline (PANI) was prepared by in situ polymerization. The effect of modified CB content on room temperature resistivity, PTC intensity, and reproducibility of resistivity-temperature comparisons in heating/cooling cycles of CB filled low density polyethylene (LDPE) composites is discussed. The results show that CB modified with PANI improved the compatibility and dispersion of CB particles in the matrix, which resulted in a decrease of the percolation threshold and improvement of reproducibility of the PTC effect.

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“…Mostly the studies are concentrated to enhance the conductivity of the blend, which is done by using dopants that own long alkyl chains. [9] Since adhesion is essential to achieving good mechanical properties of polymer blends, compatibilization is a necessary part of blending. [10] Adhesion in PANI blends is usually achieved with polar polymer matrices since the PANI complex itself is polar.…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of Conductive Polyethylene/Polyaniline Blends

Annala¹,

Löfgren²

2006

Macro Materials & Eng

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Summary: The compatibilization of polyethylene/polyaniline (PE/PANI) blends and the preparation of plasticized PANI/camphorsulfonic acid (CSA) complexes suitable for melt blending were studied. Rheological properties of the components essentially affected the morphology of the blend and thereby the electrical conductivity. The hydrogen bonds between the PANI complex and the functionalized metallocene PE used as compatibilizer compensated the unfavorable viscosities of the components. Mechanical properties of PE/PANI blends were improved, and electrical conductivity of the blends remained the same or increased through addition of functionalized metallocene polyethylene. Plasticized PANI/CSA complex with good electrical conductivity was successfully prepared.

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Preparation of low density polyethylene-based polyaniline conducting polymer composites with low percolation threshold via extrusion

Cited by 93 publications

References 14 publications

Conductive plastics with hybrid materials

Conductive plastics with hybrid materials

Effect of Carbon Black Modified with Polyaniline on Resistivity Behavior of Polyethylene/Carbon Black Composites

Compatibilization of Conductive Polyethylene/Polyaniline Blends

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