气候变化领域集成服务门户(CCPortal): Characterising the deterioration of different plastics in air and seawater

CCPortal

DOI	10.1016/j.marpolbul.2019.02.068
	Characterising the deterioration of different plastics in air and seawater
	Biber N.F.A.; Foggo A.; Thompson R.C.
发表日期	2019
ISSN	0025326X
起始页码	595
结束页码	602
卷号	141
英文摘要	In situ studies of plastic deterioration can help us understand the longevity of macroplastic as well as the generation of microplastics in the environment. Photo-oxidation contributing to the generation of microplastics in the marine environment was explored using four types of plastic (polyethene, polystyrene, poly(ethylene terephthalate) and Biothene® exposed in light and in shade, in both air and sea water. Metrics for deterioration were tensile extensibility and oxidation rate. Measurements were conducted at intervals between 7 and 600 days’ exposure. Deterioration was faster in air than in sea water and was further accelerated in direct light compared to shade. Extensibility and oxidation were significantly inversely correlated in samples exposed in air. Samples in sea water lost extensibility at a slower rate. Polystyrene, which enters the waste stream rapidly due to its wide application in packaging, deteriorated fastest and is, therefore, likely to form microplastics more rapidly than other materials, especially when exposed to high levels of irradiation, for example when stranded on the shore. © 2019 Elsevier Ltd
英文关键词	FTIR; Natural environment; Photo-oxidation; Plastic deterioration; Polystyrene; Tensile properties
语种	英语
scopus关键词	Ethylene; Microplastic; Oxidation; Packaging materials; Polystyrenes; Seawater; Tensile properties; FTIR; In-Situ Study; Marine environment; Microplastics; Natural environments; Oxidation rates; Polyethene; Waste stream; Deterioration; carbonyl derivative; plastic; polyethylene; polyethylene terephthalate; polystyrene; air; plastic; polystyrene derivative; sea water; FTIR spectroscopy; irradiation; marine environment; marine pollution; photooxidation; plastic; polymer; seawater; air pollution; Article; controlled study; environmental exposure; Fourier transform infrared spectroscopy; illumination; light absorption; light intensity; marine environment; molecular stability; sea pollution; shade; sunlight; tensile strength; chemistry; infrared spectroscopy; photochemistry; water pollutant; Air; Photochemical Processes; Plastics; Polystyrenes; Seawater; Spectroscopy, Fourier Transform Infrared; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149995
作者单位	Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, United Kingdom
推荐引用方式 GB/T 7714	Biber N.F.A.,Foggo A.,Thompson R.C.. Characterising the deterioration of different plastics in air and seawater[J],2019,141.
APA	Biber N.F.A.,Foggo A.,&Thompson R.C..(2019).Characterising the deterioration of different plastics in air and seawater.Marine Pollution Bulletin,141.
MLA	Biber N.F.A.,et al."Characterising the deterioration of different plastics in air and seawater".Marine Pollution Bulletin 141(2019).