China's film material has not broken through for ten years

The application of membrane structures in architecture has long been constrained by material challenges. To ensure these structures meet functional demands, durability, and cost-effectiveness, it’s crucial to develop membranes that satisfy all these criteria. Two primary types of architectural fabrics dominate this field: fiberglass coated with polytetrafluoroethylene (PTFE) and polyester coated with polyethylene (PVC). PTFE fiberglass boasts exceptional attributes such as high tensile strength, translucency, fire resistance, and excellent self-cleaning capabilities. While its standard warranty period spans 25 years, practical use suggests it could last even longer. However, the downside lies in its higher price tag. In contrast, PVC-coated polyester offers inferior strength and shorter lifespan but comes at a fraction of the cost—approximately one-fifth that of PTFE fiberglass. Adding a protective layer of polyvinylidene fluoride (PVF) or polyvinylidene fluoride (PVDF) on the PVC coating can shield the fabric from UV damage and enhance its self-cleaning properties. In China, many manufacturers now produce PVC-coated polyester fabrics, though their current performance still falls short of architectural standards. As permanent construction materials, these fabrics require further refinement. Reports suggest several firms are testing polyester fabrics and PTFE fiberglass with PVDF coatings, significantly improving both aesthetics and functionality. Recently, international media have shown heightened interest in Chinese architectural innovation. A U.S. business publication named China's Top Ten New Architectural Wonders in December 2005, featuring landmarks like the Beijing Olympic venues, the National Aquatics Center (the "Water Cube"), Beijing Capital International Airport, Shanghai World Financial Center, National Grand Theatre, CCTV headquarters, Chongming Dongtan Eco-city, Contemporary MOMA in Beijing, the Great Wall Commune, and the Donghai Bridge. Seven of these wonders are located in Beijing. The report highlights China as a burgeoning hub for cutting-edge architectural and engineering creativity. The rapid growth of China's construction sector provides a global stage for leading architects and engineers. The article delves into the economic factors driving China's architectural renaissance. With global focus on the 2008 Beijing Olympics, innovative buildings are flourishing across the capital. Benefiting from a thriving economy, China is set to host the world's largest airports, eco-friendly energy-efficient structures, and the tallest outdoor observation platforms. Among the highlighted projects, the National Swimming Center, or "Water Cube," stands out as a beacon of sustainability. Solar power heats the pool water, while a dual filtration system recycles pool water, and excess rainwater is collected for storage. The building's intricate steel framework mimics a foam-like structure, providing robust seismic resilience. The National Stadium, nicknamed the "Bird's Nest," exemplifies another architectural marvel. Its open design allows natural ventilation for the 91,000-seat arena, drawing inspiration from nature to create a partially enclosed structure that shields spectators from weather elements. Inside, the layout promotes airflow between individual spaces, enhancing comfort. The article notes Beijing's allure to renowned architects, citing the "Great Wall Community" as a collaborative project by 12 distinguished Asian architects. The "Contemporary MOMA" in Beijing showcases sustainable innovations in residential design, employing the world's largest geothermal heat pump system to regulate temperature and humidity across interconnected buildings. Reclaimed wastewater adds another layer of environmental consciousness, recycling water from kitchens, basins, and bathrooms. As China continues to push architectural boundaries, its blend of tradition and modernity creates a dynamic landscape for future innovations.

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