Coating of Yarns with Electro-active Layers

Recently electrically conductive textiles have been of increasing research interest due to their numerous possibilities for application in various fields of activity. These conductive textiles in future will be used in clothing to measure body parameters or in textiles used to protect against electromagnetic shielding. As this is an emerging field, there is still a lack of characterizing and evaluating the performance of these conductive materials. In the scope of this project work, different yarn materials are coated with Polypyrrole and Carbon (Graphite). These layers are applied to realize textile humidity and temperature sensors. Coated yarns are characterized in order to evaluate their behavior when being worn in every-day life. So, Literature study on electro-less coating of textile structures with Polypyrrole and Carbon (Graphite) coating of different yarn materials and Characterization of coated yarns is presented in this project work.

Inhaltsverzeichnis (Table of Contents)

• Chapter I Literature Study
• 1.1 Coating
• 1.2 Polypyrrole (PPy)
• 1.3 Coating of Yarns with Polypyrrole (PPy)
• 1.4 Carbon
• 1.5 Graphite
• 1.5.1 Properties
• 1.5.2 Applications Carbon (Graphite) Coated Yarns
• 1.6 Dip Coating
• 1.7 Electrical Conductivity
• 1.8 Electrical Resistance
• 1.9 Plasma Treatment
• 1.10 Materials Used
• Chapter II Coating of Yarns with Polypyrrole
• 2.1 Polypyrrole (PPy) Coating Procedure
• 2.1.1 Plasma Treatment
• 2.1.2 Rinsing
• 2.1.3 Polymerization
• 2.1.4 Rinsing
• 2.1.5 Drying
• 2.2 Resistance Measurement at different lengths for coating with Polypyrrole
• 2.3 Resistance Measurement at different lengths for coating with Polypyrrole(PPy)
• 2.4 Resistance Measurement at different lengths for coating with Polypyrrole(PPy)
• 2.5 Resistance Measurement at different lengths for coating with Polypyrrole (PPy)
• 2.6 Optical Microscopic Views
• 2.7 Electron Microscopic Views
• Chapter III Dip Coating of Yarns with Carbon (Graphite)
• 3.1 Carbon (Graphite) Dip Coating Procedure
• 3.1.1 Plasma Treatment
• 3.1.2 Preparation of Solution
• 3.1.3 Machine Operation
• 3.2 Resistance Measurement at different speeds for Dip Coating with Carbon (Graphite)
• 3.3 Dip Coating of Yarns with Carbon (Graphite)
• Chapter IV Characterization of Yarns
• 4.1 Comparison of Coated and Uncoated Yarns after Polypyrrole Coating
• 4.2 Comparison of Uncoated and Coated Diameters after Coating with Carbon (Graphite)
• 4.3 Comparison of Diameters among Yarns after Coating with Carbon (Graphite)
• 4.4 Comparison of Different Yarn Resistances after Polypyrrole Coating
• 4.5 Comparison of Different Yarn Resistances after Carbon (Graphite) Dip Coating
• Chapter V Results and Discussions
• 5.1 Conductivity
• 5.1.1 For Polypyrrole Coating
• 5.1.2 For Carbon (Graphite) Coating
• 5.2 Yarn Diameter
• 5.2.1 For Polypyrrole Coating
• 5.2.2 For Carbon (Graphite) Coating
• Chapter VI Drawbacks
• 6.1 Limitations of Project Work

Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)

This project investigates the coating of yarn materials with electrically conductive layers, specifically polypyrrole and carbon (graphite), to create textile humidity and temperature sensors. The aim is to characterize the coated yarns and evaluate their performance in everyday wear.

• Coating of yarn materials with polypyrrole and carbon (graphite)
• Development of textile humidity and temperature sensors
• Characterization of coated yarns
• Evaluation of performance in everyday wear
• Investigation of the electrical conductivity and diameter of coated yarns

Zusammenfassung der Kapitel (Chapter Summaries)

• Chapter I Literature Study: This chapter provides a comprehensive review of existing literature on coating textile structures with polypyrrole and carbon (graphite), including the properties and applications of these materials. It also discusses techniques like dip coating, electrical conductivity, and plasma treatment.
• Chapter II Coating of Yarns with Polypyrrole: This chapter details the procedure for coating yarns with polypyrrole, including plasma treatment, rinsing, polymerization, and drying. It also presents resistance measurements at different lengths for coated yarns and analyzes optical and electron microscopic views.
• Chapter III Dip Coating of Yarns with Carbon (Graphite): This chapter outlines the procedure for dip coating yarns with carbon (graphite), including plasma treatment, preparation of the solution, and machine operation. It also presents resistance measurements at different speeds for dip coating.
• Chapter IV Characterization of Yarns: This chapter compares the properties of coated and uncoated yarns, including diameter and resistance, after coating with polypyrrole and carbon (graphite). It analyzes the changes in these properties due to the coating process.
• Chapter V Results and Discussions: This chapter presents the results of the project, focusing on the conductivity and diameter of the coated yarns. It discusses the findings for both polypyrrole and carbon (graphite) coatings.

Schlüsselwörter (Keywords)

The primary focus of this project is on the coating of yarn materials with electrically conductive layers, specifically polypyrrole and carbon (graphite). The research investigates the electrical conductivity, diameter, and performance of these coated yarns in everyday wear. Key terms include coating, polypyrrole, carbon (graphite), dip coating, diameter, resistance, and conductivity.

Details

• College: Niederrhein University of Applied Sciences Mönchengladbach
• Course: Master Management of textile Trade and Technology
• Grade: 1
• Author: Syed Asaduzzaman (Author)
• Publication Year: 2015
• Pages: 46
• Catalog Number: V298648
• ISBN (eBook): 9783656967941
• ISBN (Book): 9783656967958
• Language: English
• Tags: coating yarns electro-active layers