초록 |
Although previous studies have brought up the threat of microplastics, the importance of plastic's fragmentation behavior influenced by the weathering and physiological environment has not been clearly investigated. Here, we demonstrated a comprehensive study for the effect of weathering and physiological exposure on the fragmentation pattern of plastics. We selected polyvinyl chloride (PVC), acrylonitrile butadiene styrene copolymer (ABS), polyethylene (PE) and polystyrene (PS) as the representative plastics to test. We simulated weathering and physiological environment, and then we exposed the plastics to each factor of those environmental conditions. UV light, seawater, gastric, intestinal condition were selected as factors, and we treated each plastic after treatment of accelerated thermal aging. We investigated the crystalline structure, size distribution and shape of microplastics for understanding the micronization behavior |