Risk assessment of phosphorus flame retardant in automotive interior material recycling proccess

2016 Fiscal Year Final Research Report

• Project/Area Number: 26740044
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental risk control and evaluation
• Research Institution: Nigata University of Phermacy and Applied Life Sciences
• Principal Investigator: KOSE Tomohiro 新潟薬科大学, 応用生命科学部, 准教授 (60379823)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 自動車内装 / ASR / リサイクル / 有機リン系難燃剤 / ダスト / リスク

Outline of Final Research Achievements

In the use of phosphorus-based flame retardants in automobile interior materials, mainly condensed type DEG-BDCIPP was used for flame retarding of urethane. In addition, the transition of phosphorus flame retardant from recycled materials was confirmed in the vehicle vibration proof material manufactured before 2003.
In examining the transition from automobile interior parts to car interior dust, the flame retardant was transferred in two paths: volatilization and contact. Transition of the flame retardant was primarily due to contact, and its transferability depended on the vapor pressure of the flame retardant.
In the ASR recycling process, condensed phosphate esters flame retardant was hydrolyzed, and phenol compounds having high toxicity and releasing property were produced.

Free Research Field

環境工学