1. Light decomposition type protective film
This type of protective film is added with photosensitive groups during the production process, and when adding photosensitive groups, it must be added at regular intervals on the polymer chain. Therefore, such a PE protective film is safe and stable under the irradiation of artificial light. However, if it is irradiated under sunlight, the photosensitive group absorbs too much energy and the polymer chain is broken, which will eventually cause the plastic to decompose.
2. Protective film of biodegradable plastic
This type of protective film adds some groups to the polymer chain to promote the decomposition of the protective film in the air or in the soil, so as to achieve the effect of environmental protection.https://www.pe-protectionfilm.com/