What is PGA plastic?
PGA plastic is one of the biodegradable plastics. It has a completely decomposable ester structure and the fastest degradable aliphatic polyester polymer material, and does not require specific degradation conditions. It also has good high temperature resistance, mechanical strength, Degradation rate and biocompatibility.
From the perspective of policy, as China's "plastic restriction order" continues to tighten, PGA, as a fully biodegradable plastic, has significant policy benefits; at the same time. It is estimated that the global production capacity of biodegradable plastics will increase to 5.297 million tons in 2026, and the market prospect is very broad.
Development status of China's PGA plastics industry
From a technical point of view, the main preparation processes of PGA include glycolic acid direct polycondensation method, glycolide ring-opening polymerization method and dimethyl oxalate (DMO) preparation method, etc., the most common one is glycolide ring-opening polymerization method, the current technology The main difficulties are that the process is difficult and the production cost is high. From the perspective of industrialization, China's PGA industry is currently in the trial run stage, and there are few enterprises with large-scale production capacity. The production capacity is about 807,800 tons/year.
Future development trend of China's PGA plastics industry
Although PGA has excellent biodegradability, mechanical properties and barrier properties, its disadvantages such as poor hydrophilicity, high hardness and high brittleness, and low melt hardness limit the application and development of this material. modified to expand the scope of application. In addition, the latest technology for preparing PGA from carbon dioxide has many advantages compared with traditional processes, such as reducing costs, reducing carbon emissions, and speeding up the industrialization process. will be one of the trends.
PGA Plastics Industry Chain Map
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