Pp sheets need to have clear requirements for material selection, size and thickness, color and shape, weight and purpose, as well as production technology, and undergo corresponding quality testing to ensure product quality.
The basic materials of hollow panels mainly include polypropylene (PP), polycarbonate (PC), polystyrene (HIPS), etc. Polypropylene is widely used in various fields, such as food packaging, billboards, etc., due to its high strength, good stiffness, and low cost. Polycarbonate is commonly used in electronic product casings, optical guides, etc. due to its good transparency, high strength, and flame retardancy.
The size and thickness of the hollow board can be customized according to specific needs. Common sizes include 1220mm2440mm, 1250mm3050mm, 1500mm3050mm, 2000mm3050mm, etc.
Hollow panels with different thicknesses have different weight ranges, for example, the conventional weight of 4mm plastic hollow panels is 700 grams per square meter,These parameters will affect the load-bearing capacity and usage scenarios of hollow panels.
The production process of hollow boards includes steps such as melt mixing, extrusion molding, and post-treatment. Melting mixing is the process of adding the mixed raw materials to an extruder for heating and melting;
The produced hollow board needs to undergo physical performance testing and quality sampling testing to ensure that it meets relevant standards and customer requirements. Physical performance testing includes tensile strength, bending strength, impact toughness, etc.