Cold storage is an important part of the logistics industry. The cold storage is mainly used for the constant temperature and humidity storage of semi-finished products and finished products such as food, dairy products, meat, aquatic products, poultry, fruits and vegetables, beverages, flowers, green plants, tea, medicines, chemical raw materials, electronic instruments, tobacco, alcoholic beverages, etc. The internal temperature is generally 0~5℃ and -18℃~-23℃. ,
The logistics box is generally made of HDPE or PP copolymer. In a normal temperature environment, the chemical properties are stable, the strength is not easy to change, and it is convenient to use. When used in a low temperature environment (about minus 25 degrees Celsius), the product begins to become brittle and easy to crack. Limited use.
In combination with the physical properties of PP copolymer, the following points should be paid attention to when the logistics box produced with PP copolymer as raw material is used in the cold storage:
1. When using it, handle it with care as much as possible, and avoid brute force littering and throwing;
2. In order to ensure the normal use in the cold storage, the carrying capacity of the logistics box should be about 30% lower than that in the normal temperature environment;
3. When the logistics box has just been moved out of the cold storage, try to put it in a room temperature environment for about 10 minutes, so that the flexibility of the logistics box can be restored before normal use.
