What materials is Cold Insulation Plastic Box made of?- Zhejiang Zhengji Plastic Industry Co. ,ltd

What materials is Cold Insulation Plastic Box made of?

Cold insulation plastic boxes are designed to keep their contents cool or insulated from external temperature changes. The materials used in the construction of these boxes are chosen for their insulating properties and durability. The most common materials used in making cold insulation plastic boxes include:

Polyethylene (PE): High-density polyethylene (HDPE) or low-density polyethylene (LDPE) is a popular choice for the outer shell of cold insulation plastic boxes. These plastics are known for their lightweight, impact resistance, and resistance to water and moisture.

Polyurethane Foam (PU): The core insulation of the plastic box is typically made of polyurethane foam. PU foam is an excellent insulating material that helps maintain the internal temperature and prevents heat transfer from the outside environment. It has a closed-cell structure, which provides effective thermal insulation.

Polypropylene (PP): Polypropylene is another thermoplastic used in some cold insulation plastic boxes. It offers good resistance to chemicals and impact, making it suitable for applications where additional durability is required.

Rubber Gaskets: To create an airtight seal, cold insulation plastic boxes often use rubber gaskets around the lids. These gaskets prevent the exchange of air between the inside and outside of the box, further enhancing insulation.

Stainless Steel or Plastic Latches: The latches that secure the lids of the cold insulation boxes may be made of stainless steel or durable plastic, ensuring a tight and secure closure.

Handles: The handles of cold insulation plastic boxes are typically made of molded plastic, making them easy to grip and carry.

Hinges: For models with hinged lids, the hinges are commonly made of plastic or metal for smooth and durable operation.

The combination of these materials ensures that cold insulation plastic boxes are lightweight, durable, and able to maintain consistent internal temperatures for an extended period. They are commonly used for transporting and storing perishable goods, such as food, beverages, pharmaceuticals, and medical supplies, while preserving their freshness and quality.