How can we make the aging life of artificial plants longer?

We all know that polyethylene plastic is a kind of polymer. During the production process of polyethylene plastic, we add some catalysts to make the ethylene molecules connect with each other and polymerize to form polyethylene plastic. It can be understood in this way: the polyethylene plastic we see is not actually a single whole piece, but is polymerized by a great many ethylene molecules that are connected together. The function of the catalyst that causes the polymerization of ethylene molecules is limited, and it will gradually lose its effectiveness during the process of maintaining the polymerization of ethylene molecules. When using polyethylene plastic products, environmental factors are often the main causes of catalyst failure and plastic aging. Exposure to light, rainwater, and other factors will all cause the products to age. 

So, how can we make the aging life of artificial plants longer? On the one hand, manufacturers should add anti-aging agents during production to delay the aging of the products. On the other hand, attention should be paid to daily use and maintenance.