What Are the Materials of Plastic Plates?

Plastic plates, as an important part of modern tableware, are often manufactured using a variety of advanced plastic materials, each of which is carefully selected for its unique physical and chemical properties.

Polypropylene (PP): PP plastic is known for its semi-crystalline thermoplastic properties and excellent impact resistance, exhibiting strong mechanical properties. It can not only effectively resist the erosion of various organic solvents and acid-base environments, but also has excellent heat resistance, allowing the PP plastic plate to easily cope with high temperature environments and even accept boiling water disinfection with peace of mind.

Polyethylene (PE): PE is a thermoplastic resin polymerized from ethylene. According to different production processes, it can be divided into three types: high pressure, medium pressure and low pressure. PE plastic plates can be either flexible or hard in texture, and have excellent cold resistance and chemical stability. They can maintain stable performance whether facing acid, alkali environments or organic solvents, making them very suitable for use as tableware.

Polystyrene (PS): Although plates made of PS are hard in texture, please note that their thermal stability is limited. When the use temperature reaches 75°C, the material will gradually soften. Therefore, PS plastic plates are not suitable for loading high-temperature food, and direct heating in a microwave oven should be avoided to prevent deformation or damage.

Polyethylene terephthalate (PET): PET plastic discs have certain limitations in terms of heat resistance. They can usually only withstand temperatures up to 70°C. Above this temperature, they are prone to deformation and may release substances harmful to the human body. . After long-term use (such as more than 10 months), you need to be more vigilant about the possible release of the carcinogen DEHP. In addition, PET plastic plates should avoid being exposed to direct sunlight for a long time (such as being placed in a car), and are not suitable for holding specific substances such as alcohol or grease to ensure safety.