The Essence of Material: A Performance Revolution through Molecular DesignAs a high-performance engineering plastic, polycarbonate (PC) sheets achieve a synergistic breakthrough in impact resistance, light transmittance, and environmental adaptability, thanks to their unique molecular chain structur

Technology of Domestic Three-Layer Co-Extrusion Film Production Line EquipmentIn recent years, domestic company Yuandong has manufactured a complete set of domestic biaxially oriented BOPP production lines, which are close to international similar products, and has made significant progress in China

Classification Logic: Dual Dimensions of Material and ProcessThe classification system of plastic films centers on polymer materials, forming a multi-level technical map by combining molding processes and functional characteristics. The current mainstream classification covers eight major substrate

Polyethylene (PE), as the synthetic plastic with the largest global production, is composed of long-chain hydrocarbons formed by the polymerization of ethylene monomers. The high tunability of its molecular structure—ranging from linearly arranged High-Density Polyethylene (HDPE) to branched Low-Den

Technical Definition and Core ValuePVC heat shrink film is a functional packaging material primarily made from polyvinyl chloride (PVC) resin, produced through extrusion blowing and(oriented stretching) processes. Its core value lies in the "memory effect" of thermally activated molecular chains: wh