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Why can biodegradable PLA stic bags degrade?

Degradation literally means converting from an unenvironmentally friendly substance to another environmentally friendly substance through chemical changes. So as to achieve the conversion of non-environmentally friendly items into environmentally friendly items.The PLA stic bags that cause white pollution are accumulated in the natural environment for a long time because they cannot be converted or the conversion time is too long, causing serious white pollution.Biodegradable PLA stic bags came into being, and biodegradable PLA stic bags are made of PLA ,PHAs,PBA,PBSPolylactic acid is a polyester polymerized from lactic acid, which has excellent biodegradability, compatibility and absorption. Its raw material is lactic acid, which mainly comes from starch (such as corn, rice, etc.) ) and other fermentations can be completely decomposed into low-molecular compounds such as water and carbon dioxide under the action of microorganisms. It will not pollute the environment, which is also its biggest feature.After years of development, the research and development of various enterprises have made their scope of application highly overlap with that of ordinary PLA stic bags, that is to say, degradable PLA stic bags can actually re PLA ce most of the applicable fields of traditional PLA stic bags, and degradable PLA stic bags can It has anti-corrosion and fresh-keeping functions.

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