| Release and transformation of btbpe during the thermal treatment of flame retardant abs plastics | |
| Zhan, Faqiang1,2; Zhang, Haijun1; Cao, Rong1,2; Fan, Yun1; Xu, Pengjun3; Chen, Jiping1 | |
| 刊名 | Environmental science & technology
 |
| 2019 | |
| 卷号 | 53期号:1页码:185-193 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.8b05483 |
| 通讯作者 | Zhang, haijun(hjzhang@dicp.ac.cn) |
| 英文摘要 | Thermal scenarios inevitably occur during the lifecycle of engineering plastics laden with brominated flame retardants (bfrs). however, little information on the fate of embedded bfrs during the thermal processes is available. in this study, we measured the release and transformation of a typical bfr, 1,2-bis(2,4,6-tribromophenoxy)ethane (btbpe), during the thermal treatment of acrylonitrile butadiene styrene (abs) plastics. the possible thermal scenarios were simulated by varying the heating temperature and atmosphere. the maximum release rate of btbpe was observed at 350 degrees c. a release kinetic model was developed to explore the mechanism of btbpe release while heating abs. material phase diffusion was found to be the rate-determining step during release. according to the developed release model, it was estimated that 0.04-0.17% of embedded btbpe could be released to air during the industrial processing of abs plastics. when the heating temperature was >= 350 degrees c, approximately 15-56% of embedded btbpe decomposed to bromophenols (bps) and 1,3,5-tribromo-2-(vinyloxy) benzene (tbvob), and the decomposition followed a first-order kinetics at 350 degrees c. polybrominated dibenzo-p-dioxins and dibenzofurans (pbdd/fs) were also significantly formed at >= 350 degrees c from bps and tbvob via a precursor mechanism. a higher temperature (>= 450 degrees c) was favorable for the formation of pbdfs. |
| WOS关键词 | DIBENZO-P-DIOXINS ; POLYBROMINATED DIPHENYL ETHERS ; 1,2-BIS(2,4,6-TRIBROMOPHENOXY)ETHANE BTBPE ; DUST ; AIR ; DECOMPOSITION ; EMISSIONS ; 2,4,6-TRIBROMOPHENOL ; ENVIRONMENT ; MECHANISMS |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000455076600020 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2372916 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Zhang, Haijun |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Res Ctr Environm Anal & Measurement, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Faqiang,Zhang, Haijun,Cao, Rong,et al. Release and transformation of btbpe during the thermal treatment of flame retardant abs plastics[J]. Environmental science & technology,2019,53(1):185-193. |
| APA | Zhan, Faqiang,Zhang, Haijun,Cao, Rong,Fan, Yun,Xu, Pengjun,&Chen, Jiping.(2019).Release and transformation of btbpe during the thermal treatment of flame retardant abs plastics.Environmental science & technology,53(1),185-193. |
| MLA | Zhan, Faqiang,et al."Release and transformation of btbpe during the thermal treatment of flame retardant abs plastics".Environmental science & technology 53.1(2019):185-193. |
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