Studying of some electrical and mechanical polyaniline composites

Dissertant

Muhammad, Samah Ḥusayn

University

University of Technology

Faculty

-

Department

Applied Sciences Department

University Country

Iraq

Degree

Master

Degree Date

2009

English Abstract

As ordinary known the ability of synthesizing electrical conducting polymer composites is possible but with poor mechanical properties, for the solution of this problem, we carried out this study in order to obtain that both properties.

Three methods were applied for preparing the conductive PANI composites using both glass fiber and Kevlar fiber fabrics as substrate for the deposition of the PANI at one time and the prepared composites (EP / glass fiber)and (EP / Kevlar fiber) at others.

The chemical oxidative method was adopted for polymerization of the aniline and simultaneously protonated of PANI with a hydrochloric acid at concentration (IM) Two kinds of oxidation agents (FeCl36H20) and (NH^S^Oa) were used) The electrical measurements indicate the effect of each preparation method, kind of oxidant agent and the kind of material which PANI deposited on the electrical results.

The conductivity results showed that the prepared composites lie within semiconductors region.

The Hall Effect measurement showed a p-type behavior for the composites prepared by the first and third methods, and n-type behavior for the composites prepared by the second method.

Temperature-dependence of electric conductivity results showed semiconductors and conductors behavior of these materials within the applied temperature ranges.

The mechanical propene's (tensile strength, creep behavior) was studied, the results as a whole concluded that PANI predicated on the EP / glass fiber and EP / Kevlar fiber composites has no remarkable effect on the mechanical properties as compared with the treatment composites with PANI, The morphology of PANI composites showed the regularity of PANI deposit on the EP / glass fiber and EP / Kevlar fiber composites and some fibrils structure and PANI moieties on the Kevlar fiber and glass fiber fabrics respectively.

The X-ray diffraction study showed the crystalline structure for EP / Kevlar fiber / PANI composites prepared by the three methods.

These results gave optimism to the synthesis of conductive polymer composites with excellent.

Main Subjects

Chemistry

Topics

• Electrical properties
• Mechanical properties

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-305038