Shanghai Daoqin Plastics Co., Ltd.

        10 month 12 day USA 伍兹霍尔海洋学 research research table/sheet 明, polystyrene (PS) 暴露于 cationic light lower, can can in year to year inner degradation, is front 科学家设想 can in ring in 持续存 in year.

         polystyrene (PS) is types color transparent thermoplastic property plastics, used for many product and industrial product in, is world upper use most plastics 之一. polystyrene (PS) chemical structure complex, micro material method degradation, therefore 科学家估计 its can in ring in 持续存 in year more long time. in upper 世纪70 year 代, 科学家就 in in testing to polystyrene (PS), its use 广泛, difficult degradation, this type of polymer already formed is full 球生态 ring in important 污染源.

         is polystyrene (PS) is true can 存续数千 year 甚至永久存 in, 伍兹霍尔海洋学 research research 人员进行 一 专项实验. will 5 市售 polystyrene (PS) sample in water in, rear will it 们暴露 in ratio cationic light strong/high 烈3倍 模拟 cationic light lower, 结果发现, cationic light will has 5 sample separation oxidation formed solvent understanding has machine carbon. research 人员计算 rear 出结论, in 北纬0°—50° scope/range ring in, is from 赤道延伸 to add large 南部边界 this vast inner, formed separation oxidation process need year;而 need will polystyrene (PS) full oxidation is oxidation carbon, need year time. is 说, cationic light can will polystyrene (PS) in 几十至数百 year separation or full degradation, its speed degree fast front 科学家 预期.

         in addition, research also 发现, additives 会改变 polystyrene (PS) light chemical oxidation versus for property, effect/influence its degradation speed degree;而 versus for/regarding day light 暴露 说, temperature degree for polystyrene (PS) light chemical oxidation effect/influence has 限, non its oxidation speed rate main/primary factors.

         research 人员指出, many machine 构都认 is, polystyrene (PS) in ring in sustainable in year, 并以此 is based on made related policy. research formed for this policy based on 提出 挑战, will has 助于完善 plastics ring lifespan methods, increase for and in plastics amount understanding, improve/increase and plastics related assessment property, 进而帮助 has machine made more 科学 应 countermeasures 略.

         related 论文10 day table/sheet in 《 ring 境科学 and technology fast 报》 upper.