Biodegradation technology of coated paper

In the past, the perfluorinated substance PFAS coated on the inner surface of some food packaging had certain carcinogenicity, so many manufacturers of paper fast food packaging turned to coating the surface of the paper with a layer of PE, PP, EVA, sarin and other resin plastics film to achieve the purpose of waterproof and oil-proof, and to avoid the harm of perfluorinated substances to human health. However, in the natural environment, like PFAS, the molecular structure of these plastic films is relatively stable and cannot be degraded, thus causing white plastic pollution.
pe coating (2)

Therefore, some companies have developed (anaerobic + marine) biodegradation technology for polymer materials (such as plastics, rubber, chemical fibers), which can achieve landfill biodegradation, marine biodegradation, and compost degradation.

(Anaerobic + marine) biodegradation technology is the lowest cost, the addition amount is only 1%, the cost is only increased by 20%-30%, and the original processing materials, production equipment, processes, and comprehensive properties of materials do not need to be changed. In contrast, the cost of fully biodegradable technologies such as PLA, PBAT, PBS, and PHA will increase by at least 1-2 times, and the overall performance of the finished product cannot reach the performance of traditional plastics. In the production process, raw materials, production equipment , the production process, etc. need to be greatly changed and adjusted.

Anaerobic biodegradable masterbatch is an organic masterbatch that can introduce plastic into the microbial degradation stage through chemical activities caused by bacteria (mainly anaerobic bacteria), leaving only carbon dioxide, methane and humus, among which methane is used as clean energy Recyclable, humus can be used as fertilizer. After adding anaerobic biodegradable masterbatch to plastic, it can be biodegraded in landfill through anaerobic reaction, and can also be degraded in seawater.

Anaerobic microbial degradation occurs all the time in nature, and because the process is very slow, it is not easy to detect. However, adding anaerobic biodegradable masterbatch can greatly speed up the degradation process of solid organic plastics. Anaerobic biodegradable masterbatch allows the plastic to complete the four stages of degradation at a higher rate.

Features and outstanding advantages of (anaerobic + marine) biodegradation technology of coated paper:
1. Clean and safe. This technology can be used as a carbon source for anaerobic microorganisms in an anaerobic environment, after enzymatic action, until the organic solid carbon source is digested, it fully meets the green product requirements for garbage classification.
2. No need to replace production equipment, no need to invest in any new main production equipment.
3. It does not affect the performance of the original material and does not increase the cost too much.
4. It is not limited by product shelf life and storage period.
5. Recyclable.
recycling


Post time: Sep-20-2022