ETFE material
ETFE scientific name "ethylene tetrafluoroethylene polymer", commonly known as "F-40", by 25% ethylene and 75% tetrafluoroethylene composition, density of about 1.75 tons /m³, can reach B1 fire standards, service life of up to 30 years, between -50℃~200℃ can be used normally, and has good self-cleaning.
ETFE chemical stability, suitable for water, fuel, oil, acid, alkali and other liquid environment. With the opening of the Garden of Eden in Cornwall, England, in 2000, ETFE began to attract global attention. The large-scale application in China is marked by water Cube and bird's Nest!
Forms of application in architecture:
1) Prestressed tensioned single-layer film
2) Multi-layer aeroccipital membrane
Processing technology:
All single-layer and air-pillow films need to be prefabricated in the factory and installed or replaced on site.
Processing sequence:
Material purchase and storage → Shape design and cutting → processing and welding → parts assembly → cleaning → packaging
Installation and construction sequence (taking air pillow film as an example) :
Set up temporary measures → Install gas supply pipeline → Install aluminum alloy frame → Install and fix the air pillow unit → aerate the air pillow unit step by step → Clean → debug
Application engineering case:
· National Stadium (Bird's Nest), China
Completion time: 2007 Area: 36,500 square meters, structure: single transparent film material: ETFE 250μm
· Tianjin Yujiapu high-speed Railway Station, China
Completion Date: 2014 Area: 7.040 ㎡, Structure: three-layer air pillow Material: ETFE 250μm
· Canopy of Yuanrong Square, Suzhou
Completion time: 2009 Area :9500 ㎡ +8500 ㎡, structure: double layer air pillow + single layer material: transparent ETFE250μm+PTFE Mes
· Greenhouse of Vanke Dongguan Botanical Garden, Guangdong, China
Completion time: 2017, area: 7,696㎡, structure: double air pillow, material: transparent ETFE250μm+ ETFE250μm printing point
· Guangzhou South Railway Station Waiting Hall, Central
Completion time: 2010, area: 15,200㎡, structure: double air pillow, material: ETFE250μm+ transparent ETFE250μm
· Sea Cube, Macau, China
Completion Date: 2009 Area: 6,460 ㎡, Structure: three-layer air pillow
· Roof Gallery of CIIC Institute, Hong Kong, China
Completion Date :2008 Area: 4,500 square meters, structure: two layers of gas
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