The Application of the Scanning Spreading Resistance Microscopy for the Measurement of the Surface Conductivity of Polypropylene / Graphite Composites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86096211" target="_blank" >RIV/61989100:27360/16:86096211 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27640/16:86096211 RIV/61989100:27740/16:86096211

Result on the web

<a href="http://www.nanocon.eu/files/proceedings/23/papers/4216.pdf" target="_blank" >http://www.nanocon.eu/files/proceedings/23/papers/4216.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The Application of the Scanning Spreading Resistance Microscopy for the Measurement of the Surface Conductivity of Polypropylene / Graphite Composites

Original language description

Electrically conductive composites with polymeric matrix (CPCs) and carbon based filler are the promising group of synthetic materials combining excellent mechanical properties of nonconductive matrix and electrical properties of conductive filler. These materials find application in many fields of interests such as an electromagnetic interference shielding, electro-optical devices, electrostatic discharge or signal transfer used in aerospace, marine, and automotive industries. Conductivity of CPCs can be positively or negatively influenced by many factors, such as change in external conditions, amount of conductive filler, etc. In this work, the changes of conductivity of CPCs with polypropylene matrix and conductive graphite filler are presented. Polypropylene/graphite (PP/graphite) composite was prepared via blending granulated PP, maleic anhydride grafted PP (MAH-g-PP) and natural graphite (either 65, 70 or 75 wt.%). It is obvious that the conductivity increases with increasing amount of conducting filler. The most conductive sample was thermally treated at 170oC for 1 hour or exposed to UV irradiation for 1 and 24 hours. The macroscopic conductivity disappeared and the changes in local current on the surface were studied using scanning spreading resistance microscopy (SSRM). SSRM shows that after the thermal treatment and UV irradiation the conductive areas disappeared and only residual current on the edge of the graphite particles was detected. Positive as well as the negative changes of conductivity of composites have a great influence on their further application.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JI - Composite materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

NANOCON 2015 : 7th international conference : conference proceedings : (reviewed version) : October 14th-16th 2015, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-63-5

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

126-131

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

Oct 14, 2015

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000374708800021