| Title: | Formation and Emissions of Volatile Organic Compounds from Homo-PP and Co-PP Resins during Manufacturing Process and Accelerated Photoaging Degradation |
| Author(s): | Kang P; Wu P; Jin Y; Shi S; Gao D; Chen G; Li Q; |
| Address: | "State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China. Polymer Processing R&D Division, Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China" |
| DOI: | 10.3390/molecules25122761 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) from polypropylene (PP) seriously restricts the application of PP in an automotive field. Herein, the traceability of VOCs from PP resins during manufacturing process and accelerated photoaging degradation was clarified on basis of an accurate characterization method of key VOCs. The influence of PP structures on changing the accelerated photoaging degradation on the VOCs was systematic. The VOCs were identified by means of Gas chromatography (GC) coupled with both a hydrogen flame ion detector (FID) and a mass spectrometry detector (MSD). Results showed that both the molecular structure of PP and the manufacturing process affected the species and contents of VOCs. In addition, the photoaging degradation of PP resulted in a large number of new emerged volatile carbonyl compounds. Our work proposed a possible VOC formation mechanism during the manufacturing and photoaging process. VOCs from PP resins were originated from oligomers and chain random scission during thermomechanical degradation. However, beta scission of alkoxy radical and Norrish tape I reactions of ketones via intermediate transition were probably the main VOCs formation routes towards PP during photoaging degradation. This work could provide scientific knowledge on both the accurate traceability of VOCs emissions and new technology for development of low-VOCs PP composites for vehicle" |
| Keywords: | "Environmental Monitoring/methods Gas Chromatography-Mass Spectrometry/methods Oxidation-Reduction Ozone/chemistry Polypropylenes/chemistry Resins, Synthetic/*chemistry Time Factors Volatile Organic Compounds/analysis/*chemistry Hs-gc-fid/ms PP resin degra;" |
| Notes: | "MedlineKang, Peng Wu, Peng Jin, Yan Shi, Shengpeng Gao, Dali Chen, Guangxin Li, Qifang eng 2016YFB0302000/National key Research and Development Program of China/ 2018013-6/research and development program of SINOPEC/ Switzerland 2020/06/19 Molecules. 2020 Jun 15; 25(12):2761. doi: 10.3390/molecules25122761" |
