Difference between revisions of "Modacrylic fiber"

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[[File:MFA201261 Modacrylic.jpg|thumb|Modacrylic underlayers<br>MFA# 2012.61]]
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== Description ==
 
[[File:72 Teklan 200X pol.jpg|thumb|Teklan]]
 
[[File:72 Teklan 200X pol.jpg|thumb|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.
 
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 ==
 
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[[File:Verel 200X BF.POL.jpg|thumb|Verel fibers]]
 
modacrylic fibre; polyacrylonitrile; Dynel® [Union Carbide]; Verel®[Tennessee Eastman]; SEF [Solutia]; Elura [Monsanto Fibers]; Teklan; Crylor; Kanecaron
 
modacrylic fibre; polyacrylonitrile; Dynel® [Union Carbide]; Verel®[Tennessee Eastman]; SEF [Solutia]; Elura [Monsanto Fibers]; Teklan; Crylor; Kanecaron
  
 
[[[SliderGallery rightalign|Verelfiberkj1.jpg~FTIR|verel1000m.jpg~SEM|verel350m.jpg~SEM]]]
 
[[[SliderGallery rightalign|Verelfiberkj1.jpg~FTIR|verel1000m.jpg~SEM|verel350m.jpg~SEM]]]
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== Risks ==
  
== Other Properties ==
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* Fire resistant and self-extinguishing.   
 
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* Non-allergenic.
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%.
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* Cellusuede: [http://www.cellusuede.com/Images/SDS_modacrylic_2020rev.9-17.pdf Modacrylic SDS]
 
 
{| class="wikitable"
 
|-
 
! scope="row"| Melting Point
 
| 120-125 (soften)
 
|-
 
! scope="row"| Density
 
| 1.35-1.37
 
|}
 
 
 
== Hazards and Safety ==
 
 
 
Fire resistant and self-extinguishing.  Non-allergenic.
 
 
 
Solutia: [http://domino.solutia.com/solutia/smsdslib.nsf/ee3478c317b62b53062566ba006e41b7/fa4db44c1ccb9cbf06256d8f0069818b/$FILE/English.pdf SEF modacrylic] MSDS
 
  
== Additional Information ==
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== Physical and Chemical Properties ==
  
° Solutia: [http://www.sefmodacrylic.com/pages/techspecs.asp SEF modacrylic] technical specifications
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* 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 = 120-125C (soften).
 +
* Density = 1.35-1.37
  
 
== Comparisons ==
 
== Comparisons ==
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[[media:download_file_53.pdf|Fiber Burn Tests]]
 
[[media:download_file_53.pdf|Fiber Burn Tests]]
  
== Additional Images ==
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== Resources and Citations ==
 
 
<gallery>
 
File:Verel 200X BF.POL.jpg|Verel fibers
 
</gallery>
 
 
 
== Sources Checked for Data in Record ==
 
  
 
* Hoechst Celanese Corporation, ''Dictionary of Fiber & Textile Technology'' (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
 
* 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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* J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England
 
* J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England
  
* Website address 1  Comment: www.fabrics.net
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* Website: www.fabrics.net
  
 
* Rosalie Rosso King, ''Textile Identification, Conservation, and Preservation'', Noyes Publications, Park Ridge, NJ, 1985
 
* Rosalie Rosso King, ''Textile Identification, Conservation, and Preservation'', Noyes Publications, Park Ridge, NJ, 1985

Latest revision as of 08:31, 27 September 2022

Modacrylic underlayers
MFA# 2012.61

Description

Teklan

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

Verel fibers

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

Risks

  • Fire resistant and self-extinguishing.
  • Non-allergenic.
  • Cellusuede: Modacrylic SDS

Physical and Chemical 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 = 120-125C (soften).
  • Density = 1.35-1.37

Comparisons

Properties of Synthetic Fibers

Fiber Burn Tests

Resources and Citations

  • 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: 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