Silk PLA (polylactic acid) is a bio-based material with good biodegradability and mechanical properties, which is widely used in textile, packaging and medical fields. However, the storage conditions of silk PLA have an important impact on its performance and life. Therefore, understanding and mastering the correct storage method is essential to maintain its excellent performance.

Environmental requirement

Temperature control: The storage temperature of silk PLA should be controlled between 0℃ and 30℃. High temperature will cause the material to become soft, strength decline, and even thermal degradation; Low temperatures may cause the material to become brittle and affect its flexibility.

Humidity control: Humidity has a great influence on silk  PLA. High humidity can cause the material to absorb water, which affects its dimensional stability and mechanical properties. Therefore, the relative humidity of the storage environment should be controlled between 40% and 60%.

Preservation against light: ultraviolet rays will accelerate the aging of silk PLA, causing the material to turn yellow and the strength to decline. Therefore, the storage should avoid direct sunlight, can choose to use opaque packaging materials or place in the dark.

Packing method

Sealed packaging: In order to prevent the effect of moisture and oxygen in the air on silk PLA, it is recommended to use sealed bags or sealed boxes for packaging. Before sealing, an appropriate amount of desiccant (such as silicone bag) can be placed to absorb moisture in the bag.

Classification storage: Different types of silk PLA materials (such as fibers, films, particles, etc.) should be classified and stored to avoid mixing. At the same time, contact with chemicals, oils and other substances should be avoided to avoid chemical reactions.

Storage life

The storage life of silk PLA is related to its quality, storage conditions and other factors. Under suitable storage conditions, it can generally be stored for 1 to 2 years. In order to ensure the performance of the material, it is recommended to carry out the necessary testing before use.

Matters needing attention

Avoid heavy pressure: When storing silk PLA, heavy pressure should be avoided to avoid deformation or damage to the material. Especially for film and fiber products, attention should be paid to handling gently.

Regular inspection: The storage environment should be checked regularly to ensure that the temperature and humidity are controlled within the appropriate range. At the same time, check the package is intact, if damaged should be replaced in time.

First in first out: In order to ensure the freshness and performance of the material, it is recommended to use the "first in first out" principle for management and use. That is, materials that are stored first are used first to avoid performance degradation caused by long-term storage.

Safety precautions: Silk PLA is a flammable substance, and should be kept away from fire and heat sources when stored, and equipped with corresponding fire fighting facilities. At the same time, the storage area should be kept well ventilated to prevent the accumulation of combustible gas.

Sum up

The correct storage method is essential to maintain the excellent properties of silk PLA. By controlling the temperature and humidity of the storage environment, avoiding direct sunlight, and using appropriate packaging methods, the service life of the material can be effectively extended to ensure that it plays the best performance during use. At the same time, in the storage process should pay attention to safety precautions to avoid accidents.