Technological Iteration and Upgrading Empower Dual Breakthroughs in Performance and Quality of Domestic Polycarbonate Sheets

In recent years, the domestic polycarbonate sheet industry has continuously deepened technological research and development, optimized production processes and upgraded raw material formulas, completely breaking the long-term monopoly of imported sheets in the high-end market. Through equipment innovation, process optimization and quality control upgrading, domestic PC sheets have achieved all-round breakthroughs in core performances including aging resistance, flame retardancy, sound insulation and anti-fog properties. With quality reaching international advanced levels and outstanding cost performance, domestic products have fully covered civilian, industrial and high-end engineering markets.

In the early stage, the domestic PC sheet industry suffered from serious product homogeneity, surplus low-end production capacity and insufficient high-end performance. Some small and medium-sized manufacturers adopted recycled materials for production, resulting in sheets prone to yellowing, cracking and short service life, damaging the overall reputation of the industry. To promote high-quality industrial development, leading enterprises have increased R&D investment, introduced fully automatic co-extrusion production lines, upgraded the production system to use brand-new raw materials and abandoned the process of mixing recycled materials, ensuring product quality from the source. Meanwhile, they have developed differentiated products such as double-layer, triple-layer and multi-layer hollow sheets, solid endurance sheets, frosted sheets and anti-fog sheets, enriching the product matrix.

Performance upgrading constitutes the core highlight of this industrial innovation. The newly iterated polycarbonate sheets adopt double-sided UV-resistant co-extrusion technology, achieving an ultraviolet blocking rate of over 99%. Their outdoor service life has been extended from the original 5-8 years to more than 15 years, fully meeting the requirements of long-term outdoor engineering applications. In terms of flame retardancy, the upgraded sheets reach the national Class B1 flame retardant standard, featuring self-extinguishing performance, no open flame and no toxic flue gas, complying with fire protection specifications for public places such as shopping malls, venues and factories. In addition, the sheets have synchronized upgrades in sound insulation, anti-condensation and wind pressure resistance, adapting to complex geographical environments with high altitude, strong winds and heavy rainfall.

Process upgrading has also greatly improved the appearance texture and adaptability of the sheets. Enterprises can customize sheets with different thicknesses, colors and light transmittances according to market demands, and optimize sheet flatness and cutting precision to solve traditional problems such as deformation, warping and uneven light transmission. At present, high-end domestic PC sheets are widely applied in high-end projects including large high-speed railway stations, airports, convention and exhibition centers and new energy factories. Industry experts indicate that technological independence and product high-end development are the inevitable trend of the PC sheet industry. In the future, enterprises will continue to focus on functional R&D to promote the continuous upgrading of domestic new building materials.