Why do cement woven bags age?

Cement woven bags are very common materials for us in our life. Because of its good toughness and capacity, we can transport and package many products, but we should pay attention to its aging problems when using them.
This is because the material of the cement bag is polypropylene, and carbon atoms are present in the molecule, which is a plastic material that is easily oxidized. At each stage of processing, the degradation of the molecular chain occurs, and the physical and mechanical properties of the polypropylene woven bag are gradually reduced, resulting in the loss of value of the cement bag. Or in the process of using, the long-term absorption of the sun's ultraviolet rays, stimulated to form an excited state, dissociation generates active radicals, triggering a chain-free free reaction, causing the polypropylene polymer segment to break and decompose. Therefore, we must pay attention to its maintenance and maintenance when using it.
The main thing is to keep it in a cool and dark place, avoiding sunshine and ventilation, otherwise it will accelerate aging and shorten the service life. However, its service life is limited in normal environments, so pay attention to proper use.