Difference between pages "Teflon" and "Velveteen"

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[[File:59 polytfl Teflon 200X.jpg|thumb|Teflon fibers at 200x]]
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[[File:54.620-SC44748.jpg|thumb|Child's dress<br>MFA# 54.620]]
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[[File:59 polytfl Teflon 200X pol.jpg|thumb|Teflon fibers at 200x, polarized light]]
 
 
== Description ==
 
== Description ==
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[[File:2000.966-SC58695.jpg|thumb|Square cover<br>MFA# 2000.966]]
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[DuPont] A registered trademark for a solid white polymer that is resistant to almost all chemicals. [[Polytetrafluoroethylene|Polytetrafluoroethylene]] was accidentally discovered in 1938 by Roy Plunkett at DuPont during an attempt to synthesize tetrafluoroethylene. The new polymer was found to be resistant to heat, chemical, light, and adhesion and subsequently marketed as Teflon® by DuPont in 1943. Teflon® is a soft, opaque material that is unaffected by acids, alkalis, and organic solvents. It is widely used for containers in chemical plants, for rockets, bearings, gaskets, and for frying pan coatings. Teflon® is used for stain-resistant, water-repellent coatings on textiles. It can also be prepared as ribbonlike fibers, which are woven, knitted, felted or braided. Additionally, [[Gore-Tex|GORE-TEX®]] is prepared from a microporous Teflon® film laminated on a polyester fabric.
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A thick, soft fabric with a dense cut pile on one side. Velveteen is made with a weft pile while [[velvet|velvet]] is made with a warp pile. Velveteen is usually made from [[cotton|cotton]].
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See also fluorinated ethylene propylene.
 
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
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PTFE; polytetrafluoroethylene; Polytetrafluorethylen (Deut.); politetrafluoretileno (Esp.); polyttrafluorthylne  (Fr.); Teflon (Port.)
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velventine (Fr.); velours de coton (Fr.)
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Examples: GORE-TEX [W.R.Gore]; Teflon TFE [DuPont]; Rulon [Saint-Gobain]; Algoflon [Solvay]; Fluorosint [Quadrant];
 
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[[[SliderGallery rightalign|aaiTEFLON.jpg~FTIR]]]
 
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== Personal Risks ==
 
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Heated to temperatures consistent with everyday cooking, Teflon emits minute particles that can lodge deeply in the lungs. These particles are deadly to pet birds and can cause a disease known as polymer fume fever, a severe flu-like condition, in humans.  Does not burn in flame but evaporates above 215C and evolves HF.
 
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== Environmental Risks ==
 
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Perfluorooctanoic acid (PFOA), also known as C8, is aman-made chemical used in the process of making Teflon that the potential to be a health concern because it can stay in the environment and in the human body for long periods of time. PFOA and some similar compounds can be found at low levels in some foods, drinking water, and in household dust. Although PFOA levels in drinking water are usually low, they can be higher in certain areas, such as near chemical plants, such as DuPont, that use or make PFOA compounds.
 
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== Physical and Chemical Properties ==
 
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*Highly resistant to acids, alkalis and solvents
 
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*Tenacity = 0.5-1.4 g/denier;  Elongation = 15-32 %
 
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*Moisture regain = 0%; 1 mil films: 0.1 g/m2d
 
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*Melting Point = 300 (dec)
 
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*Density = 2.1-2.3
 
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== Resources and Citations ==
 
  
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* DuPont: [http://www1.dupont.com/NASApp/dupontglobal/corp/products/prodDetail.jsp?nodeID=3447&amp;amp;letter=t Teflon Website]
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[[File:Image3_802540.jpg|thumb|Bleached Velveteen]]
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==Resources and Citations==
  
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* Rachael Perkins Arenstein, Lisa Goldberg, and Eugenie Milroy, ‘Support and Rehousing for Collection Storage’ In ‘Preventive Conservation: Collection Storage’ Lisa Elkin and Christopher A. Norris (eds.), Society for the Preservation of Natural History Collections, New York. 2019.  
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* P.Tortora, R.Merkel (eds.), ''Fairchild's Dictionary of Textiles'', Fairchild Publications, New York, 1996.
  
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971
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* Rosalie Rosso King, ''Textile Identification, Conservation, and Preservation'', Noyes Publications, Park Ridge, NJ, 1985
  
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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
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* Edward Reich, Carlton J. Siegler, ''Consumer Goods: How to Know and Use Them'', American Book Company, New York City, 1937
  
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* Marjory L. Joseph, ''Introductory Textile Science'', Holt, Rinehart and Winston, Fort Worth, TX, 1986
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* Website: www.fabrics.net
  
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* ''Identification of Textile Materials'', The Textile Institute, Manchester, England, 1985
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 846
  
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* J.Gordon Cook, ''Handbook of Textile Fibres:II Man-made Fibres'', Merrow Publishing Co. , Durham, England, p.509
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* Wikipedia: http://en.wikipedia.org/wiki/Velveteen (Accessed Nov. 29, 2005)
  
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* Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
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* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 10:51, 25 June 2022

Child's dress
MFA# 54.620

Description

Square cover
MFA# 2000.966

A thick, soft fabric with a dense cut pile on one side. Velveteen is made with a weft pile while Velvet is made with a warp pile. Velveteen is usually made from Cotton.

Synonyms and Related Terms

velventine (Fr.); velours de coton (Fr.)

Bleached Velveteen

Resources and Citations

  • P.Tortora, R.Merkel (eds.), Fairchild's Dictionary of Textiles, Fairchild Publications, New York, 1996.
  • Rosalie Rosso King, Textile Identification, Conservation, and Preservation, Noyes Publications, Park Ridge, NJ, 1985
  • Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
  • Website: www.fabrics.net
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 846

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