Processing and Properties of Carbon Nanotube PVC Composites

Kristin Trommer,Bernd Morgenstern,Carina Petzold

doi:10.1155/2014/307274

Kristin Trommer, Bernd Morgenstern + Show 1 more

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https://doi.org/10.1155/2014/307274

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Abstract

Commercially available multiwalled carbon nanotubes (MWCNT) were incorporated in coating masses based on PVC by means of three roll mill. The best results could be obtained using the 5 µm gap. Thin PVC sheets were formed via knife coating having an electrical conductivity up to 1,500 S/m that are applicable as electric heating elements. For the use in the antistatic range, CNT contents ≤0.5% are sufficient. Rheological measurements indicate the quality of particle processing. AFM investigations are suitable to investigate the alignment of the nanoparticles in the bulk polymer. Using this method, the decrease of agglomerates as well as the splitting of CNT bundles within further mass processing could be visualized.

Highlights

Sheets and coatings made of plasticized polyvinyl chloride (PVC-P) are currently applied to a variety of products for various utilizations
The present paper shows the development of electrically conductive plasticized PVC layers by incorporation of multiwalled carbon nanotubes (MWCNT) in PVC solutions
The splitting of the Carbon nanotubes (CNT)-C particles into fibrous structures cannot be achieved in any test with the applied process method on the three roll mill

Summary

Introduction

Sheets and coatings made of plasticized polyvinyl chloride (PVC-P) are currently applied to a variety of products for various utilizations. Depending on the exact field of application, the coated materials are required to have a variety of special properties. These include, for instance, cut and abrasion resistance, flame retardant, heat protection, antistatic or electrical conductivity, and resistances to soiling, dust, gas, UV-radiation, or chemicals. Prior art is the use of filler materials with particle sizes in the micrometer range. Such particles enable the setting of the desired function. The use of additive compounds with a particle size distribution in the micrometer range of approximately 20 μm especially restricts a thin layer development. In [3, 4] the electrical and the thermal behavior of PVC-MWCNT nanocomposites are analyzed; in [5, 6] the influence of the glass transition temperature and the mechanical properties are described

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