At present, degradable PLA stics mainly include biodegradable PLA stics, photodegradable PLA stics, light and biodegradable PLA stics, and water-degradable PLA stics. Among them, biodegradable PLA stics have been extensively studied and widely used. Biodegradable PLA stics are a type of PLA stics that are degraded by the action of naturally occurring microorganisms such as bacteria, molds (fungi) and algae.The ideal biodegradable PLA stic is a polymer material with excellent performance. After being discarded, it can be completely decomposed into carbon dioxide and water by microorganisms in the environment, and returned to the natural carbon cycle. In addition to being naturally degradable, biodegradable PLA stics also have the advantages of renewable raw materials and strong adaptability to the body, making them widely used in fields including environmental protection, food containers and packaging, agriculture and forestry, medicine, textiles, electronics, and automobiles.
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