Characterization of Atmospheric Pressure Plasma Interactions with Textile/polymer Substrates PDF Download
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Author: Yoon Joong Hwang
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
Keywords: Adhesion, Kevlar, PET, Atmospheric pressure plasma, Re-deposition, Cross-linking, Surface roughness.
Author: Yoon Joong Hwang
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
Keywords: Adhesion, Kevlar, PET, Atmospheric pressure plasma, Re-deposition, Cross-linking, Surface roughness.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The purpose of the research has been to understand plasma-substrate interactions and an application to adhesion enhancement of high performance fiber under capacitively-coupled atmospheric pressure plasma. Preliminarily, plasma-poly(ethylene terephthalate) (PET) film interactions with atmospheric pressure capacitively-coupled plasma were studied under closed-ventilation conditions with exposure times of 0-5 min., using He/Air and He/O2 gases. The weight loss (%) increased initially and then decreased at further exposure times in both gas plasma treatments. Contact angle measurements showed that wettability increased rapidly up to 1 min. and was constant at further exposure times. Atomic Force Microscopy (AFM) was used to characterize the surface morphology change of the PET films. Surface functionalization and cross-linking were examined by X-ray Photoelectron Spectroscopy (XPS). Both plasma treatments induced functionalization after chain-scission, and generated etched particles, a potential source for re-deposition. Re-deposition effects on weight loss (%), roughness, carbon content and surface functionality increased with plasma exposure time. Cross-linking was dependent on plasma exposure time and also on helium content. Tensile strength and initial modulus of PET films increased after treatments in both gas plasmas. The contribution of helium was a major factor increasing cross-linking. In order to investigate the effect of atmospheric pressure plasmas on adhesion between aramid fibers and epoxy, aramid fibers were treated with atmospheric pressure helium/air for 15, 30 and 60 seconds on a capacitively-coupled device at a frequency of 5.0 kHz and He outlet pressure of 3.43kPa. SEM analysis at 10,000 x magnification showed that no significant surface morphological change resulted from the plasma treatments. XPS analysis showed a decrease in carbon content and an increase in oxygen content. Deconvolution analysis of C1s, N1s and O1s peaks showed an increase in su.
Author: Luqman Jameel Rather
Publisher: John Wiley & Sons
ISBN: 1119710316
Category : Science
Languages : en
Pages : 432
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Book Description
With the public enhanced awareness towards eco-preservation, eco-safety and health concerns, environmentally benign, nontoxic and sustainable bioresource materials produced mainly from non-food crops have revolutionized all industrial sectors particularly textile industry. In recent years, textile industries in developed countries are getting increasing interest in global interest due to the varied and changing world market conditions in terms of price, durability and fiber mixtures as well as design, colors, weight, ease of handling and product safety. The increasing environmental and health concerns owing to the use of large quantities of water and hazardous chemicals in conventional textile finishing processes lead to the design and development of new dyeing strategies and technologies. Effluents produced from these textiles wet processing industries are very diverse in chemical composition, ranging from inorganic finishing agents, surfactants, chlorine compounds, salts, total phosphate to polymers and organic products. This aspect forced western countries to exploit their high technical skills in the advancements of textile materials for high quality technical performances, and development of cleaner production technologies for cost effective and value-added textile materials. Therefore, vast and effective research investigations have been undertaken all over the world to minimize the negative environmental impact of synthetic chemical agents through the sustainable harvest of eco-friendly bioresource materials. The book will discuss following research developments in academic and industry: Improvement in dye extraction and its applications Impact of textile dyeing on environment Textile finishing by natural and ecofriendly means Natural dyes as environmental-friendly bioresource products Textile effluent remediation via physical, chemical and biological processes.
Author: Anthony Joseph McWilliams
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Book Description
Author: Rajkishore Nayak
Publisher: Woodhead Publishing Limited
ISBN: 0081028679
Category : Textile industry
Languages : en
Pages : 390
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Book Description
Sustainable Technologies for Fashion and Textiles combines the latest academic research and industrial practices to shed light on a wide range of activities that influence how the textiles industry affects the natural environment. Pressure from regulators, customers and other stakeholders has pressed companies to translate general sustainability concepts and ideas into business practices. This is leading to improvements in how the industry consumes water, electricity and chemicals, and to a reduction in the amount of waste generated by textile processes. This book groups approaches to these topics under four themes, fiber, yarn and fabric production, chemical processing, garment manufacturing and recycling. Addresses sustainability challenges that occur throughout the supply chain, from the sourcing of raw materials, to recycling finished products Provides introductions to sustainability--both in general and within the textiles industry--making this topic accessible for readers of all backgrounds Compares the advantages and disadvantages of different approaches to sustainability, helping readers avoid pitfalls when devising their own strategies
Author: Umi Syazwani Rahizan
Publisher:
ISBN:
Category : Plasma chemistry
Languages : en
Pages : 37
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Book Description
Author: Anton Nikiforov
Publisher: BoD – Books on Demand
ISBN: 1838802495
Category : Science
Languages : en
Pages : 146
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Book Description
Plasma as the fourth state of matter is an ionized gas consisting of both negative and positive ions, electrons, neutral atoms, radicals, and photons. In the last few decades, atmospheric-pressure plasmas have started to attract increasing attention from both scientists and industry due to a variety of potential applications. Because of increasing interest in the topic, the focus of this book is on providing engineers and scientists with a fundamental understanding of the physical and chemical properties of different atmospheric-pressure plasmas via plasma diagnostic techniques and their applications. The book has been organized into two parts. Part I focuses on the latest achievements in advanced diagnostics of different atmospheric-pressure plasmas. Part II deals with applications of different atmospheric-pressure plasmas.
Author: Xu Han
Publisher:
ISBN:
Category :
Languages : en
Pages : 211
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Book Description
Author: Rory A. Wolf
Publisher: John Wiley & Sons
ISBN: 1118547551
Category : Technology & Engineering
Languages : en
Pages : 268
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Book Description
This Book's focus and intent is to impart an understanding of the practical application of atmospheric plasma for the advancement of a wide range of current and emerging technologies. The primary key feature of this book is the introduction of over thirteen years of practical experimental evidence of successful surface modifications by atmospheric plasma methods. It offers a handbook-based approach for leveraging and optimizing atmospheric plasma technologies which are currently in commercial use. It also offers a complete treatment of both basic plasma physics and industrial plasma processing with the intention of becoming a primary reference for students and professionals. The reader will learn the mechanisms which control and operate atmospheric plasma technologies and how these technologies can be leveraged to develop in-line continuous processing of a wide variety of substrates. Readers will gain an understanding of specific surface modification effects by atmospheric plasmas, and how to best characterize those modifications to optimize surface cleaning and functionalization for adhesion promotion. The book also features a series of chapters written to address practical surface modification effects of atmospheric plasmas within specific application markets, and a commercially-focused assessment of those effects.
Author: Hynek Biederman
Publisher: World Scientific
ISBN: 1860944671
Category : Technology & Engineering
Languages : en
Pages : 391
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Book Description
Plasma Polymer Films examines the current status of the deposition and characterization of fluorocarbon-, hydrocarbon- and silicon-containing plasma polymer films and nanocomposites, with plasma polymer matrix. It introduces plasma polymerization process diagnostics such as optical emission spectroscopy (OES, AOES), and describes special deposition techniques such as atmospheric pressure glow discharge. Important issues for applications such as degradation and stability are treated in detail, and structural characterization, basic electrical and optical properties and biomedical applications are discussed.
