Polypropylene sheets are divided into pure polypropylene sheets, polypropylene extruded sheets, and glass fiber reinforced polypropylene sheets. Among them, pure polypropylene board has low density, is easy to weld, non-toxic and odorless. Polypropylene process board is made by adding various energy additives to polypropylene resin. However, glass fiber reinforced polypropylene sheets have better heat resistance and low-temperature impact resistance than ordinary polypropylene sheets, making them particularly suitable for petroleum, pesticide, and wastewater treatment. 2, Characteristics of polypropylene board
1. Polypropylene sheet has a smooth and even surface, uniform thickness, and a wide range of applications;
2. Polypropylene board has uniform thickness, light weight, good heat resistance and mechanical strength;
3. Polypropylene board is non-toxic and odorless, and is a very environmentally friendly plastic material.
4. Polypropylene board is the most ideal building material.
Three. Scope of use of polypropylene board
Polypropylene board is widely used due to its own characteristics. Polypropylene board can be used to make advertising boards and recycling bins, and can also be used as industrial board to provide packaging protection. In addition, polypropylene sheets have a wide range of applications in electronic industry protection, such as integrated circuit chips, integrated circuit packaging, testing, thin-film transistor liquid crystal displays, optoelectronic and other electronic component packaging.
Advantages of polypropylene board:
1. Excellent heat resistance. Expanded polystyrene is usually used at 80 ° C, while expanded polyethylene can only withstand 70-80 ° C, and expanded polypropylene can only withstand 120 ° C. When the foamed polypropylene is left at 120 for 22 hours, its size shrinks
2. Excellent mechanical performance. Its mechanical properties, such as tensile strength and tear strength, are of high grade. Its compressive strength is lower than that of rigid polyurethane and expanded polystyrene, but higher than that of soft polyurethane, indicating moderate compressive strength.
3. Excellent thermal insulation performance. Foamed polypropylene, like foamed polyethylene, has a closed cell structure, so its thermal conductivity is not affected by humidity. Due to its lower thermal conductivity than foamed polyethylene, it has significant insulation properties and can be used as an advanced insulation material.
4. Good elasticity and high impact energy absorption capacity.
5. Good resistance to stress cracking. Compared to foamed polystyrene, it does not release toxic gases during combustion. Can be recycled.