Dimethylcyclosiloxanes in Mobile Smart Terminal Devices: Concentrations, Distributions, Profiles, and Environmental Emissions
文献类型：期刊论文
| 作者 | Xing, Yuanna1,3; Ge, Yiming2; Lu, Shaoyou2; Yang, Tao1,3; Peng, Xianzhi1,3 |
| 刊名 | TOXICS
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 12期号:4页码:11 |
| 关键词 | dimethylcyclosiloxanes mobile smart terminal devices environmental emission silicone polymers |
| DOI | 10.3390/toxics12040287 |
| 英文摘要 | Dimethylcyclosiloxanes (DMCs) are utilized as vital monomers in the synthesis of organosilicon compounds, integral to the manufacture of mobile smart terminal devices. Toxicological studies have revealed potential endocrine-disrupting activity, reproductive toxicity, neurotoxicity, and other toxicities of the DMCs. This study investigated the concentrations and composition profiles of seven DMCs, including hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), and tetradecamethylcycloheptasiloxane (D7), hexadecamethylcyclooctasiloxane (D8), and octadecamethylcyclononasiloxane (D9) in three types of mobile smart terminal device components (silicone rubber, adhesive, and plastics). Environmental emissions of DMCs from silicone rubber materials were also estimated to improve the recognition of their potential fate within the environment. D5-D9 were widely present in silicone rubber and adhesives with detection rates ranging from 91-95.5% and 50-100%, respectively, while D3 and D4 were more frequently detected in plastics, both showing a detection rate of 61.1%. Silicone rubber had the highest total DMCs (& sum;7DMCs) and a concentration of 802.2 mg/kg, which were dominated by D7, D8, and D9. DMCs detected in adhesives were dominated by D4, D5, and D6. The estimated emission of & sum;DMCs released into the environment in China from silicone rubber used in mobile smart terminal devices exceeds 5000 tons per year. Further studies are needed on the presence of DMCs in various commodities and environmental media to assess their ecological and human health impacts, as well as the toxicological effects of D7-D9 for the appropriate regulation of these chemicals. |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:001210564400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77056]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Peng, Xianzhi |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.SunYat Sen Univ, Sch Publ Hlth Shenzhen, Shenzhen Campus, Shenzhen 518107, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Yuanna,Ge, Yiming,Lu, Shaoyou,et al. Dimethylcyclosiloxanes in Mobile Smart Terminal Devices: Concentrations, Distributions, Profiles, and Environmental Emissions[J]. TOXICS,2024,12(4):11. |
| APA | Xing, Yuanna,Ge, Yiming,Lu, Shaoyou,Yang, Tao,&Peng, Xianzhi.(2024).Dimethylcyclosiloxanes in Mobile Smart Terminal Devices: Concentrations, Distributions, Profiles, and Environmental Emissions.TOXICS,12(4),11. |
| MLA | Xing, Yuanna,et al."Dimethylcyclosiloxanes in Mobile Smart Terminal Devices: Concentrations, Distributions, Profiles, and Environmental Emissions".TOXICS 12.4(2024):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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