Recyclable PP Polypro Sheet Plastic Board Waterproof Anti Corrosion Customized

Core Principle
Polypropylene (PP) is a non-polar polymer material. Its molecular structure contains no polar groups (such as hydroxyl groups, carboxyl groups, etc.), and its molecular chains are closely arranged, making it difficult for water molecules to penetrate through the molecular gaps. Meanwhile, PP sheets undergo processes such as calendering and extrusion during production, resulting in a smooth and dense surface with no obvious pores or micropores, which further blocks the path of water penetration. Therefore, PP sheets themselves do not absorb or seep water and possess inherent waterproof properties.

The specific waterproof performance of PP sheets is as follows: They have strong impermeability. Under normal temperature and pressure, pure water or general liquids cannot penetrate PP sheets. Even after long-term immersion for months or even years, the sheets will not swell, deform or deteriorate in performance due to water absorption. For example, after being immersed in water for 1000 hours, their water absorption rate is usually less than 0.01%, which is much lower than that of materials such as wood (10%-30%) and ordinary concrete (3%-5%). Their chemical resistance helps enhance the stability of waterproofing. They have good tolerance to corrosive liquids such as acids, alkalis and salts. When in contact with complex water bodies like sewage and chemical wastewater, they will not be damaged or leak due to corrosion, indirectly ensuring long-term waterproofing effect. Their processability improves waterproof adaptability. They can be processed by means of welding, bonding, bending, etc., and can be customized in shape according to different scenarios such as special-shaped structures and joints, reducing the risk of water leakage caused by improper installation, and are especially suitable for areas requiring overall waterproofing.

PP sheets have a wide range of waterproof applications. In the field of chemical anti-corrosion, they can be used to make pickling tanks, electroplating tanks, wastewater treatment pools, etc. Leveraging their waterproof and anti-corrosion properties, they prevent acid and alkali liquids from leaking and polluting the environment. They can also serve as linings for pipelines and storage tanks, isolating liquids from metal containers to extend equipment lifespan. In construction and municipal engineering, they function as waterproof layers for basements and roofs, especially suitable for humid environments. They can replace traditional coiled materials to reduce the risk of water leakage at joints. Additionally, they act as anti-seepage layers for rainwater collection pools and artificial lakes, being lightweight and easy to construct, and resistant to ultraviolet aging after adding additives. In agriculture and aquaculture, they serve as waterproof liners for reservoirs and irrigation channels to prevent water seepage and loss. When used on the bottom and side walls of fish and shrimp breeding ponds, they avoid water leakage and reduce soil pollution to water quality. In household and industrial facilities, they can be used as waterproof baffles in bathrooms and kitchens, replacing tiles or glass, being resistant to moisture and easy to clean. They can also be used as linings for cold storage floors or walls, with waterproof performance and the ability to withstand low temperatures of around -20°C.