Mixing
ETFE
 | |
| Names | |
|---|---|
IUPAC name poly(1,1,2,2-tetrafluorobutane-1,4-diyl) | |
| Other names poly(ethene-co-tetrafluoroethene) | |
| Identifiers | |
CAS Number |
|
ChemSpider |
|
InChI
| |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 N verify (what is  Y N ?) | |
Infobox references | |
Ethylene tetrafluoroethylene (ETFE) is a fluorine-based plastic. It was designed to have high corrosion resistance and strength over a wide temperature range. ETFE is a polymer and its source-based name is poly(ethene-co-tetrafluoroethene). ETFE has a relatively high melting temperature, excellent chemical, electrical and high-energy radiation resistance properties. When burned, ETFE releases hydrofluoric acid.
Contents
1 Properties
2 Applications
3 Notable buildings
3.1 Other notable construction
3.2 Under construction
4 References
5 External links
Properties
Useful comparison tables of PTFE against FEP, PFA and ETFE can be found on DuPont's website, listing the mechanical, thermal, chemical, electrical, and vapour properties of each, side by side.[1]
ETFE is effectively the high-strength version of the other three in this group, often featuring slightly diminished capacities in other fields by comparison.
Combustion of ETFE occurs in the same way as a number of other fluoropolymers, in terms of releasing hydrofluoric acid (HF). HF is extremely corrosive and toxic, and so appropriate caution must be exercised.
ETFE film is self-cleaning (due to its nonstick surface) and recyclable. It is prone to punctures by sharp edges and therefore mostly used for roofs.[2] As a film for roofing it could be stretched (up to 3x) and still be taut if some variation in size occurs (due to thermal expansion, for example.) Employing heat welding, tears can be repaired with a patch or multiple sheets assembled into larger panels.
ETFE has an approximate tensile strength of 42 MPa (6100 psi), with a working temperature range of 89 K to 423 K (−185 °C to +150 °C or −300 °F to +300 °F).[3]
ETFE resins are resistant to ultraviolet light. An accelerated weathering test (comparable to 30 years’ exposure) produced almost no signs of film deterioration.[citation needed]
Applications
The Eden Project, Cornwall, UK. Biomes are constructed with ETFE cushions.
ETFE roof at Manchester Piccadilly station, Manchester, UK
An example of its use is as pneumatic panels to cover the outside of the football stadium Allianz Arena or the Beijing National Aquatics Centre (a.k.a. the Water Cube of the 2008 Olympics) – the world's largest structure made of ETFE film (laminate). The panels of the Eden Project are also made from ETFE, and the Tropical Islands have a 20,000 m2 window made from this translucent material.
Another key use of ETFE is for the covering of electrical and fiber-optic wiring used in high-stress, low-fume-toxicity and high-reliability situations. Aircraft and spacecraft wiring are primary examples. Some small cross-section wires like the wire used for the wire-wrap technique are coated with ETFE.
As a dual laminate, ETFE can be bonded with FRP as a thermoplastic liner and used in pipes, tanks, and vessels for additional corrosion protection.
ETFE is commonly used in the nuclear industry for tie or cable wraps and in the aviation and aerospace industries for wire coatings. This is because ETFE has better mechanical toughness than PTFE. In addition, ETFE exhibits a high-energy radiation resistance and can withstand moderately high temperatures for a long period.
Commercially deployed brand names of ETFE include Tefzel by DuPont, Fluon by Asahi Glass Company, Neoflon ETFE by Daikin, and Texlon by Vector Foiltec.
Due to its high temperature resistance ETFE is also used in film mode as a mold-release film. ETFE film offered by Guarniflon or Airtech International and Honeywell is used in aerospace applications such as carbon fiber pre-preg curing as a release film for molds or hot high-pressure plates.
ETFE cushions roof with integrated photovoltaic cells. Munich's municipal waste management department
Notable buildings
Notable buildings and designs using ETFE as a significant architectural element:
Allianz Arena, Munich, Germany
Beijing National Aquatics Centre, (the Water Cube) Beijing, China
Eden Project, Cornwall, United Kingdom
Khan Shatyr Entertainment Center, Astana, Kazakhstan
National Space Centre, Leicester UK
U.S. Bank Stadium, Minneapolis, Minnesota, United States
National Space Centre, Leicester, United Kingdom
Cuauhtémoc Stadium, Puebla, México.
Midland Metropolitan Hospital, Smethwick, Birmingham, United Kingdom
Other notable construction
Hard Rock Stadium, Miami Gardens, Florida, United States
Banc of California Stadium. Los Angeles, California, Unite States [4]
Avenues Phase-III, Al-Rai, Kuwait
Dworzec Tramwajowy Centrum, tram station in Łódź, Poland.
Solaris, Clamart, France
Discovery College, Lantau Island, Hong Kong
Green 18, Hong Kong Science Park, Hong Kong- Pavilion, Alnwick Castle, Alnwick, United Kingdom
BC Place, Vancouver, British Columbia, Canada,[5]
Detail of Beijing National Aquatics Centre showing ETFE exterior cushions
River Culture Pavillon The ARC, Daegu, South Korea
Munich's municipal waste management department, Munich, Germany
Beijing National Stadium, Beijing, China
FestiveWalk, Resorts World at Sentosa, Singapore
Dolce Vita Tejo Shopping Centre, Amadora, Lisbon, Portugal
- roof, dedicated underground rail station at the Heathrow Airport Terminal 5, London, United Kingdom
Manchester Victoria station concourse, Manchester, United Kingdom
Forsyth Barr Stadium at University Plaza, Dunedin, New Zealand
Islazul Shopping Centre, Madrid, Spain
Kansas City Power & Light District, Kansas City, Missouri, United States- South Campus skylight structures, Art Center College of Design, Pasadena, California, United States
Tanaka Business School, London, United Kingdom
ETFE Facade with integrated LED Lights
Tropical Islands, Brandenburg, Germany
Barnsley Interchange, Barnsley, United Kingdom
The Mall Athens, Athens, Greece
Newport railway station, Newport, United Kingdom
The Elements, Livingston, United Kingdom
Experimental Media and Performing Arts Center, Rensselaer Polytechnic Institute, Troy, New York, United States
Arena Pernambuco, Recife, Brazil
Sandton City, Sandton, South Africa
- Key West Shopping Centre, Krugersdorp, South Africa
- Oceanus Casino, Macau, Special Administrative Region of China.
Masdar city, Abu Dhabi, United Arab Emirates
ISS Building Lancaster University
- Empire City Casino, Yonkers, New York,[6] United States
The SSE Hydro, Glasgow, Scotland
Anaheim Regional Transportation Intermodal Center, California[7] (12-13-14)
National Stadium, Singapore
Orto Botanico di Padova Biodiversity Garden roof, Padua, Italy
Guangzhou South Railway Station, China
Yujiapu Railway Station, China
Persian Garden, Iran Mall, Tehran, Iran
Anoeta Stadium, San Sebastian, Spain- Ed Kaplan Family Institute for Innovation and Tech Entrepreneurship, Illinois Institute of Technology, Chicago, Illinois
Mercedes-Benz Stadium, Atlanta, Georgia (2017)[8]
Under construction
Avenues Phase IV & IVB, Al-Rai, Kuwait
Los Angeles Stadium at Hollywood Park. Inglewood, California, USA [9]
- Jungle Exhibit, Sedgwick County Zoo, Wichita, Kansas (2015),[10] United States
Dockside Pavilion, Sydney Australia (2014)
Baku Olympic Stadium, Baku, Azerbaijan (2015)
Australian Embassy, Jakarta, Indonesia (2014)
Wharf Retail, Bluewaters Island, DUBAI[11] (2016)
Carlisle Railway Station, Carlisle, Cumbria (2017)- Oxigeno, San Francisco, Heredia Province, Costa Rica
The Shed (Hudson Yards). Manhattan, New York, USA
References
^ Fluoropolymer Comparison - Typical Properties DuPont
^ ETFE
^ Tefzel ETFE Specifications
^ https://www.lafc.com/stadium/facts
^ http://bcplace.com/index.php/roof-lights.html
^ Stoelker, Tom (17 August 2012). "STUDIO V Bets on a Curving Lattice Porte-Cochere in Yonkers". Archpaper.com. Architect’s Newspaper. Retrieved 19 January 2014..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ http://www.articinfo.com/
^ http://www.ajc.com/sports/football/leadoff-what-next-for-mercedes-benz-stadium-roof/TQqK2fuxIPuWS0A15D3P6O/
^ https://www.lased.com
^ Gruver, Deb (20 August 2014). "New roof will help save jungle exhibit at Sedgwick County Zoo". Wichita Eagle. Retrieved 20 August 2014.
^ https://www.bncnetwork.net/News/Alec_awarded_contract_for_Bluewaters_Wharf_Retail_project__(United_Arab_Emirates)
External links
ETFE resin - Chemours
Ethylene and TFE - Holscot Fluoroplastics Ltd
Comments
Post a Comment