Container bags are not recommended for long-term use in high and low temperatures

The reasons why container bags are not recommended for long-term use in high and low temperature environments are mainly based on the following aspects:

First, material characteristics

Container bags are usually made of plastic resins such as polypropylene (PP) or polyethylene (PE). These materials undergo a series of physical and chemical changes at high and low temperatures that affect their properties and lifetime.

High temperature environment:

Thermal degradation: At high temperatures, plastic materials are prone to thermal degradation, resulting in molecular chain breakage, which reduces the mechanical properties and durability of the material.

Softening deformation: High temperature will soften the plastic material, and the container bag is prone to deformation when bearing weight, affecting its use effect and safety.

Accelerated aging: High temperature will also accelerate the aging process of plastic materials, resulting in shortened service life of container bags.

Low temperature environment:

Embrittlement: at very low temperatures, plastic materials become embrittlement and are prone to fracture or damage when subjected to external forces.

Shrinkage deformation: Low temperature may cause the size of the container bag to change, affecting its loading capacity and tightness.

Second, security considerations

Reduced load-bearing capacity: In high or low temperature environments, the load-bearing capacity of the container bag may be affected, increasing the safety risks during transportation and storage.

Changes in chemical stability: Although the container bag can withstand the corrosion of acid, alkali, salt solution and a variety of organic solvents within a certain temperature range, long-term use at high or low temperatures may change its chemical stability, resulting in adverse reactions with the load.

3. Test standards

According to the national standard (such as GB/T10454-2000), the cold resistance test temperature of the container bag is -35℃, and the heat resistance test temperature is 80℃. These test results show that the container bag can maintain a certain performance in these two temperature ranges, but it is not recommended for long-term use in such extreme environments.

4. Practical application suggestions

Avoid extreme environments: Where possible, avoid exposing container bags to high or low temperatures for long periods of time.

Reasonable use: Use the container according to the instructions and recommended conditions to extend its service life and ensure safety.

Regular inspection: The integrity and performance of the container bags should be regularly checked during use, and potential problems should be discovered and dealt with in a timely manner.

To sum up, the main reason why container bags are not recommended for long-term use in high and low temperature environments is the limitation of material characteristics and safety considerations. In practical applications, extreme environmental conditions should be avoided as far as possible to ensure the performance and safety of container bags.