0
  1. Trang chủ >
  2. Cao đẳng - Đại học >
  3. Đại cương >

textile fibers, dyes, finishes, and processes a concise guide

textile fibers, dyes, finishes, and processes a concise guide

textile fibers, dyes, finishes, and processes a concise guide

... areformedwithstructuresasoutlinedin Figure 1-3."-'ABABABABABNALTERNATINGCOPOLYMERIVAABABABBBAIVRANDOMCOPOLYMERBB BB BIVAA~AA ~A& apos;"GRAFTCOPOLYMER'vA A ... 1-1.Classificationof natural and man-madefibers.FIBERCLASSIFICATION Textile fibersare normally brokendownintotwomainclasses,natural and man-madefibers.Allfiberswhichcomefromnatural ... inedbelowschemat-ically:12 Textile Fibers, Dyes, Finishes, and Processes Stepgrowth:n nnA~IAA~lAAAA~Chaingrowth:nA~ (A) nnA~ (A) nnA~ (A) nTheaveragenumberofmonomerrepeatingunitsin a polymerchain(n)isoftenreferredtoalsoasthedegreeofpolymerization,DP.TheDPmustexceedanaverage20unitsinmostcasestogive a polymerofsufficientmolecularsizetohavedesirablefiber-formingproperties.Theoverallbreadthofdistributionofmolecularchainlengthsinthepolymerwillaffecttheultimatepropertiesofthe fibers, withwidepolymersizedis-tributionsleadingtoanoverallreductionoffiberproperties.Althoughthepolymersfromnaturalfibers and regeneratednaturalfibersdonotundergopolymerizationbythemechanismsfoundforsynthetic fibers, mostnaturalpolymershavecharacteristicrepeatingunits and highdegreesofpolymerization and arerelatedtostepgrowthpolymers.BasicpolymericstructuresforthemajorfibersaregiveninFigure1-4.FiberSpinningAlthoughnaturalfiberscomein a morphologicalformdeterminedbynature,regenerated and syntheticman-madefiberscanbe"tailor-made"dependingontheshape and dimensionsoftheorifice(spinningjet)thatthepolymerisforcedthroughtoformthefiber.Thereareseveralmethodsusedtospin a fiberfromitspolymer,includingmelt,dry,wet,emulsion, and suspensionspinning.Meltspinningistheleastcomplexofthemethods.Thepolymerfromwhichthefiberismadeismelted and thenforcedthrough a spinneret and intoairtocausesolidification and fiberformation.Dry...
  • 249
  • 394
  • 0
Workforce Planning and Development Processes - A Practical Guide ppt

Workforce Planning and Development Processes - A Practical Guide ppt

... the administrative assistance of Louis Ramirez.xviiAbbreviationsAAC Air Armament CenterAAC/CC Commander, Air Armament CenterAF /A1 M Air Force Directorate of Manpower and Organization AFMC ... HEALTH CAREINTERNATIONAL AFFAIRSNATIONAL SECURITYPOPULATION AND AGINGPUBLIC SAFETYSCIENCE AND TECHNOLOGYSUBSTANCE ABUSETERRORISM AND HOMELAND SECURITYTRANSPORTATION AND INFRASTRUCTUREWORKFORCE ... Strategic Plans and Programs, Air Force Materiel CommandAFMC/CC Commander, Air Force Materiel CommandAFPC Air Force Personnel CenterAFPC/DPK Directorate of Civilian Career Management, Air Force...
  • 70
  • 493
  • 0
WHAT IS BETA GLUCAN? A Concise Guide to the Benefits and Uses of the Most Powerful Natural Im- mune Enhancer Known to Science ppt

WHAT IS BETA GLUCAN? A Concise Guide to the Benefits and Uses of the Most Powerful Natural Im- mune Enhancer Known to Science ppt

... be up-regulated by both oral and parenteral administration of oat beta glucan and these enhanced res-ponses may play an important role in providing resistance to bacterial and parasitic infection. ... beta glucan. Their average age was 52, and their cancer was in the advanced stage. It was con-cluded, “Beta glucan administration seems to stimulate proliferation and activation of peripheral ... up-regulate immune mechanisms and provide 16enhanced resistance against Eimerian coccidiosis in mice.” Again glu-cans saved mammals from death by a most deadly bacteria. At the National Hospital...
  • 51
  • 527
  • 3
Cambridge.University.Press.Analgesia.Anaesthesia.and.Pregnancy.A.Practical.Guide.Jun.2007.pdf

Cambridge.University.Press.Analgesia.Anaesthesia.and.Pregnancy.A.Practical.Guide.Jun.2007.pdf

... intracranial and systemic pressure, and nausea and vomiting, and should not be used routinely.• Spinal anaesthesia produces more rapid and dense anaesthesia than epidural and an anaesthetic level of at ... epidural anaesthesia is chosen, standard techniquesare used. The procedure itself requires a less extensive block than Caesarean sectionAnalgesia, Anaesthesia and Pregnancy: A Practical Guide ... Royal InfirmaryLeicester, UKPrefaceThere are now many large and authoritative texts on obstetric anaesthesia and analgesia available to the anaesthetic trainee. With reduced time available forobstetric...
  • 416
  • 969
  • 2
Tài liệu 480(2012) Expenses and benefits A tax guide doc

Tài liệu 480(2012) Expenses and benefits A tax guide doc

... registered at or about the same time as the automatic car, and • which does not have automatic transmission, but otherwise is the closest variant available of themake and model of the automatic car.Step ... price of any later accessories is added to all cars. The price is in either category (b) or (c) and 127(2) of paragraph 12.11, as appropriate, and is calculated on the same basis. A later accessory ... booklet.Annual parties or similar functionsSections 264 A nnual parties at Christmas or alternative functions of a similar nature, such as an annual and 266(3) dinner dance, which are open to staff...
  • 108
  • 437
  • 0
Tài liệu Coaching, Mentoring and Managing A Coach Guidebook pot

Tài liệu Coaching, Mentoring and Managing A Coach Guidebook pot

... goals. If you as a leader have goals that head one way and your people have goalsheading another, the team will fall apart. All too often employees (and sometimes managers) don’t have clear-cut ... makediscoveries.Coaching, Mentoring and Managing A Coach GuidebookBy Micki HollidayThe Career Press, Inc.Franklin Lakes, NJ1Successful people have failed, are failing and will fail again.As Tom Peters ... anauthoritarian “my way or the highway” style to an all-inclusiveapproach that requires the manager to be a coach, cheerleader,mentor, trainer, disciplinarian and counselor. Coaches in sports dowhat...
  • 300
  • 450
  • 2
Microengineering, MEMS, and Interfacing A Practical GuideCopyright © 2006 pot

Microengineering, MEMS, and Interfacing A Practical GuideCopyright © 2006 pot

... Bell17.Gears and Their Vibration: A Basic Approach to Understanding GearNoise, J. Derek Smith18.Chains for Power Transmission and Material Handling:Design and Applications Handbook, American Chain ... Soedel11.Flat and Corrugated Diaphragm Design Handbook, Mario Di Giovanni12.Practical Stress Analysis in Engineering Design, Alexander Blake13.An Introduction to the Design and Behavior of ... infringe.Library of Congress Cataloging-in-Publication DataCatalog record is available from the Library of Congress Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the...
  • 328
  • 375
  • 0

Xem thêm

Từ khóa: learning php mysql and javascript a stepbystep guide to creating dynamic websites ebooklearning php mysql and javascript a stepbystep guidelearning php mysql and javascript a stepbystep guide pdflearning php mysql and javascript a stepbystep guide to creating dynamic websites downloadlearning php mysql and javascript a stepbystep guide to creating dynamic websites pdflearning php mysql and javascript a stepbystep guide to creating dynamic websitesfinancial modeling and valuation a practical guidefinancial modeling and valuation a practical guide pdffinancial modeling and valuation a practical guide to investment banking and private equity pdffinancial modeling and valuation a practical guide to investmentfinancial modeling and valuation a practical guide to investment banking and private equity downloadfinancial modeling and valuation a practical guide to investment banking and private equity ebookfinancial modeling and valuation a practical guide to investment banking and private equity reviewfinancial modeling and valuation a practical guide to investment banking and private equity epubfinancial modeling and valuation a practical guide to investment banking and private equityNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngTìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinThiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXChuong 2 nhận dạng rui roBT Tieng anh 6 UNIT 2Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtchuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMMÔN TRUYỀN THÔNG MARKETING TÍCH HỢPTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ