Difference between revisions of "Modacrylic fiber"

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== Description ==
 
== Description ==
  
A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of less than 85% but at least 35% by weight of acrylonitrile units (Federal Trade Commission definition). The first modacrylic (modified acrylic) fiber, Dynel was introduced in 1949; many later followed but the only one still in production at the end of the twentieth century is SEF [Solutia]. The resilient modacrylic fibers have an irregular cross section and fair elastic recovery (79-99% at 2% elongation). SEF has a low moisture regain of 2.5%. It will maintain its properties to temperatures of 190C (375F). Modacrylic fibers are resistant to sunlight, bleaches and are considered non-allergenic. Because modacrylic fibers are fire resistant and self-extinguishing, they are commonly used in children's sleepwear. They are also used for wigs, stuffed toys and fake fur fabrics.
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A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of less than 85% but at least 35% by weight of acrylonitrile units (Federal Trade Commission definition). The first modacrylic (modified acrylic) fiber, Dynel® was introduced in 1949; many later followed but the only one still in production at the end of the twentieth century is SEF [Solutia]. The resilient modacrylic fibers have an irregular cross section and fair elastic recovery (79-99% at 2% elongation). SEF has a low moisture regain of 2.5%. It will maintain its properties to temperatures of 190C (375F). Modacrylic fibers are resistant to sunlight, bleaches and are considered non-allergenic. Because modacrylic fibers are fire resistant and self-extinguishing, they are commonly used in children's sleepwear. They are also used for wigs, stuffed toys and fake fur fabrics.
  
 
[[File:72 Teklan 200X.jpg|thumb|Teklan]]
 
[[File:72 Teklan 200X.jpg|thumb|Teklan]]
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
modacrylic fibre; polyacrylonitrile; Dynel [Union Carbide]; Verel[Tennessee Eastman]; SEF [Solutia]; Elura [Monsanto Fibers]; Teklan; Crylor; Kanecaron
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modacrylic fibre; polyacrylonitrile; Dynel® [Union Carbide]; Verel®[Tennessee Eastman]; SEF [Solutia]; Elura [Monsanto Fibers]; Teklan; Crylor; Kanecaron
  
[[[SliderGallery rightalign|verel1000m.jpg~SEM|verel350m.jpg~SEM]]]
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[[[SliderGallery rightalign|Verelfiberkj1.jpg~FTIR|verel1000m.jpg~SEM|verel350m.jpg~SEM]]]
  
 
== Other Properties ==
 
== Other Properties ==
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== Additional Information ==
 
== Additional Information ==
  
Solutia: [http://www.sefmodacrylic.com/pages/techspecs.asp SEF modacrylic] technical specifications M. Joseph, ''Introductory Textile Science'', Holt Reinhold & Winston, Fort Worth, 1986. G.Cook, ''Handbook of Textile Fibres:II. Man-made Fibres'', 5th edition, Merrow Publishing Co., Durham, England, 1984.
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° Solutia: [http://www.sefmodacrylic.com/pages/techspecs.asp SEF modacrylic] technical specifications° M. Joseph, ''Introductory Textile Science'', Holt Reinhold & Winston, Fort Worth, 1986. ° G.Cook, ''Handbook of Textile Fibres:II. Man-made Fibres'', 5th edition, Merrow Publishing Co., Durham, England, 1984.
  
 
== Comparisons ==
 
== Comparisons ==
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<gallery>
 
<gallery>
 
File:Verel 200X BF.POL.jpg|Verel fibers
 
File:Verel 200X BF.POL.jpg|Verel fibers
File:Verelfiberkj1.jpg|Infrared spectrum of Verel fiber
 
 
</gallery>
 
</gallery>
  
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== Authority ==
 
== Authority ==
  
* Hoechst Celanese Corporation, Hoechst Celanese Corporation, ''Dictionary of Fiber & Textile Technology'' (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
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* Hoechst Celanese Corporation, ''Dictionary of Fiber & Textile Technology'' (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
  
* Marjory L. Joseph, Marjory L. Joseph, ''Introductory Textile Science'', Holt, Rinehart and Winston, Fort Worth, TX, 1986
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* Marjory L. Joseph, ''Introductory Textile Science'', Holt, Rinehart and Winston, Fort Worth, TX, 1986
  
 
* ''Identification of Textile Materials'', The Textile Institute, Manchester, England, 1985
 
* ''Identification of Textile Materials'', The Textile Institute, Manchester, England, 1985
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* ''Fairchild's Dictionary of Textiles'', Phyllis G.Tortora, Robert S. Merkel (eds.), Fairchild Publications, New York City, 7th edition, 1996
 
* ''Fairchild's Dictionary of Textiles'', Phyllis G.Tortora, Robert S. Merkel (eds.), Fairchild Publications, New York City, 7th edition, 1996
  
* J.Gordon Cook, J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England
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* J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England
  
* Website address 1, Website address 1  Comment: www.fabrics.net
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* Website address 1  Comment: www.fabrics.net
  
* Rosalie Rosso King, Rosalie Rosso King, ''Textile Identification, Conservation, and Preservation'', Noyes Publications, Park Ridge, NJ, 1985
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* Rosalie Rosso King, ''Textile Identification, Conservation, and Preservation'', Noyes Publications, Park Ridge, NJ, 1985
  
* Random House, Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
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* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
  
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998

Revision as of 07:26, 24 July 2013

Teklan

Description

A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of less than 85% but at least 35% by weight of acrylonitrile units (Federal Trade Commission definition). The first modacrylic (modified acrylic) fiber, Dynel® was introduced in 1949; many later followed but the only one still in production at the end of the twentieth century is SEF [Solutia]. The resilient modacrylic fibers have an irregular cross section and fair elastic recovery (79-99% at 2% elongation). SEF has a low moisture regain of 2.5%. It will maintain its properties to temperatures of 190C (375F). Modacrylic fibers are resistant to sunlight, bleaches and are considered non-allergenic. Because modacrylic fibers are fire resistant and self-extinguishing, they are commonly used in children's sleepwear. They are also used for wigs, stuffed toys and fake fur fabrics.

Teklan

Synonyms and Related Terms

modacrylic fibre; polyacrylonitrile; Dynel® [Union Carbide]; Verel®[Tennessee Eastman]; SEF [Solutia]; Elura [Monsanto Fibers]; Teklan; Crylor; Kanecaron

FTIR

Verelfiberkj1.jpg

SEM

Verel1000m.jpg

SEM

Verel350m.jpg


Other Properties

Soluble in butyrolactone and warm acetone. Resistant to other organic solvents alkalis and acids. Tenacity = 1.8-2.5 g/denier (dry); 1.7-2.4 (wet); Elongation = 35-48%; Moisture regain = 0.4-4.0%.

Melting Point 120-125 (soften)
Density 1.35-1.37

Hazards and Safety

Fire resistant and self-extinguishing. Non-allergenic.

Solutia: SEF modacrylic MSDS

Additional Information

° Solutia: SEF modacrylic technical specifications° M. Joseph, Introductory Textile Science, Holt Reinhold & Winston, Fort Worth, 1986. ° G.Cook, Handbook of Textile Fibres:II. Man-made Fibres, 5th edition, Merrow Publishing Co., Durham, England, 1984.

Comparisons

Properties of Synthetic Fibers

Fiber Burn Tests


Additional Images


Authority

  • Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
  • Marjory L. Joseph, Introductory Textile Science, Holt, Rinehart and Winston, Fort Worth, TX, 1986
  • Identification of Textile Materials, The Textile Institute, Manchester, England, 1985
  • Fairchild's Dictionary of Textiles, Phyllis G.Tortora, Robert S. Merkel (eds.), Fairchild Publications, New York City, 7th edition, 1996
  • J.Gordon Cook, Handbook of Textile Fibres:II Man-made Fibres, Merrow Publishing Co. , Durham, England
  • Website address 1 Comment: www.fabrics.net
  • Rosalie Rosso King, Textile Identification, Conservation, and Preservation, Noyes Publications, Park Ridge, NJ, 1985
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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