What kind of bag is green and biodegradable?
At present, industrial biomass plastic garbage bags mainly include two categories. One is based on starch, plant cellulose and other ingredients as raw materials, respectively or in different proportions with other biodegradable plastics or ordinary plastics modified mixing, and then thermoplastic re-production, to make fully biodegradable or partially biodegradable plastics, such as starch-based plastics. The other is biodegradable plastic garbage bags, such as polyhydroxystraxaneate (PIIA), which are synthesized directly by dust or engineering from renewable sources such as starch and molasses. Or to starch, straw fish scales and other agricultural and sideline products as raw materials, through fermentation synthesis monomer, and then through chemical synthesis of polylactic acid and other biodegradable garbage bags.
The main reason why ordinary plastic bags can be replaced by biodegradable bags is that their chemical structure is different from that of traditional plastics, so they can be degraded by microorganisms.
Most of the principles under which biodegradable materials are decomposed are the cause of microorganism degradation under anaerobic digestion devices. Its raw material composition is PLA-PBAT; after six months of use and burial, the bag can be turned into fertilizer to moisturize the earth to feed nature's plants.
Individual PLA materials degrade relatively slowly and take longer, but when mixed with PBAT materials, they are now common green plastics. The experimental results also prove that the plastic bags made of PLA-PBAT are completely degraded within half a year or so, and the degradation performance requirements of biodegradable plastics are increased by the heavy metal content index, and strict requirements are carried out.
