Mainstream membrane materials
Mainstream membrane materials
PVC coated membrane
Base material: polyester fiber Coating: polyvinyl chloride (PVC) Features: Best economic performance (market price is about 30-80 yuan/㎡) Strong plasticity and rich color selection Service life 5-10 years Regular cleaning and maintenance are required
PTFE membrane
Base material: glass fiber Coating: polytetrafluoroethylene Features: Excellent self-cleaning performance (surface contact angle > 110°) Fireproof grade A Service life of more than 25 years Light transmittance 10-15% Initial strength up to 100kN/m
ETFE membrane material
Material: Ethylene-tetrafluoroethylene copolymer Features: Light transmittance up to 95% Weight only 1% of glass Weather-resistant temperature -200℃ to 150℃ Recyclable rate 100% Can be made into inflatable pillow structure
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Comparative analysis of membrane material performance
| index | PVCMembrane | PTFEMembrane | ETFEMembrane |
|---|---|---|---|
| tensile strength | 80kN/m | 100kN/m | 50MPa |
| Light transmittance | 5-15% | 10-15% | 90-95% |
| Service life | 5-10year | 25+year | 20+year |
| Self-cleaning performance | generally | Excellent | good |
| Fire rating | B1 | A | B1 |
guide
Membrane Selection Guide
Commercial complex
PTFE membrane is recommended because of its excellent durability and self-cleaning properties, which can reduce long-term maintenance costs. Typical case: The PTFE membrane used in Shanghai Hongqiao Hub has been in stable use for 12 years, and the surface still maintains more than 90% cleanliness.
Sports venues
ETFE membrane is an ideal choice, and its high light transmittance can create a comfortable viewing environment. The National Aquatics Center "Water Cube" uses ETFE air pillows, saving about 30% of lighting energy consumption annually.
Temporary buildings
PVC membranes have outstanding cost-effectiveness and are suitable for short-term use scenarios such as exhibition halls. Some temporary venues for the Guangzhou Asian Games used PVC membranes, saving 40% of construction costs.