Multi-layer co-extrusion improved ultraviolet-resistant high-transparency PC (Polycarbonate) dodging plate

• Main Author: ZHEN XIAOBO
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a multi-layer co-extrusion improved ultraviolet-resistant high-transparency PC (polycarbonate) dodging plate, the dodging plate comprises layers A and a core layer, the dodging plate mainly forms two hierarchical structures, the whole dodging plate is an A (BC) nA layer, the layers A are arranged on the upper surface and the lower surface of the core layer, the layers A are mainly made of polycarbonate, an antioxidant, a lubricant and an ultraviolet light absorber, and the core layer is made of polypropylene. The core layer is of a (BC) n-layer micro-nano multi-layer structure, and the main raw materials of the core layer are polycarbonate, polymethyl methacrylate, an antioxidant, a lubricant, a compatibilizer and an ultraviolet light absorber. The PC board is modified through multi-layer extrusion and finally used for the agricultural greenhouse, the purpose is to prolong the service life of PC in the greenhouse, the ultraviolet resistance of the PC board is improved through direct bl