Network optimization data:

Add photodegradable plastics.
 

The addition of photodegradable plastics is to add a small amount of photosensitizer to the polymer, which is a photooxidative degradation catalyst at a low concentration. Polyolefin polymers break up in response to sunlight (ultraviolet) radiation.
 

By adding photosensitizers such as ketones and amines to polymers such as polyethylene and polypropylene, good photodecomposition can be obtained.
 

Adding photodegradable plastics has the advantages of low cost, simple production process and good film covering effect. However, its degradation characteristics are that the exposure surface degrades thoroughly and the part buried in the soil degrades poorly. The degradation induction period of this photodegradable plastic can be controlled in more than two months. However, the degradation time has poor controllability.
 

There are many factors affecting the degradation performance of materials, as follows:
 

Effect of polymer pH on polymer degradation.
 

The change of pH value has a great influence on the hydrolysis rate of the copolymer chain, but the decomposition rate does not vary greatly in different parts of the organism. The decomposition of copolymer forms an acidic microenvironment, which promotes the autocatalysis of copolymer and causes the decomposition.