可降解塑料丢地里就能消失？丨中新真探

Core Viewpoint - Biodegradable plastics, primarily derived from plant materials like corn, require specific industrial composting conditions to effectively decompose, and their actual degradation in natural environments is significantly slower than expected [1]. Group 1 - Biodegradable plastics are mainly composed of bio-based materials and need high temperature, humidity, and microbial presence for effective degradation [1]. - Even theoretically fully degradable materials may not meet expectations in practical applications [1]. - When discarded in regular soil or oceans, the decomposition of these plastics is extremely slow, potentially taking hundreds of years [1].