Is It Really Eco-friendly To Degrade Eco-friendly Bags?

At present, the raw materials for the production of degradable bags on the market are mainly PLA and PBAT, and generally one raw material is not directly used to produce degradable bags. But today, we will mainly talk about the source, chemical properties, and industrial costs of polylactic acid (PLA).

Polylactic acid (PLA) is a kind of biodegradable bag material that can be degraded by microorganisms using natural plant starch as raw material and using microbial fermentation engineering technology. This degradable material has unique properties such as complete biodegradability, biocompatibility, hydrophobicity, good impermeability, piezoelectricity, nonlinear optical activity, etc., and is made of thermoplastic processability with petrochemical resins. PLA degradable materials can be used in injection molding, extrusion blown film, extrusion casting, extrusion hollow molding, compression molding and other process methods for processing, manufacturing molded products, films, containers; It can also be compounded with other materials. PLA biodegradable materials are used in various application fields such as advanced packaging materials, sustained-release drug materials that can be absorbed by the human body, implantable biomaterials and other packaging, medical and health, agricultural films and so on.

Polylactic acid is one of the main sources of organic matter accumulated in microorganisms, and it is also a nutrient for microorganisms, which can be decomposed into energy by decomposition enzymes in microorganisms when microorganisms enter a state of starvation, which is equivalent to animal fat.

At present, the research content of polylactic acid mainly includes two major directions.

1. Research on the technology to reduce the industrial chemical cost of polylactic acid and improve the processing performance. For example, genetically engineered bacteria and genetically modified plants are used to produce polylactate. It is modified by blending with other fully biodegradable materials to improve its properties.

2. Research on the synthesis strains and processes of medium and long chain polylactic acid with special functional groups such as vinyl, cyano, phenyl, F, Cl, etc.

From the above explanation, it can be concluded that as long as the packaging bag is made of real degradable materials, it must be environmentally friendly and will not cause pollution to the natural environment.