| Issue |
E3S Web Conf.
Volume 261, 2021
2021 7th International Conference on Energy Materials and Environment Engineering (ICEMEE 2021)
|
|
|---|---|---|
| Article Number | 02067 | |
| Number of page(s) | 7 | |
| Section | Energy Chemistry Performance and Material Structure Analysis | |
| DOI | https://doi.org/10.1051/e3sconf/202126102067 | |
| Published online | 21 May 2021 | |
Determination of Small-Amount Polypropylene in Imported Recycled Polyethylene/Polypropylene Blends by Fourier Transform Infrared Spectroscopy
1
Ningbo Cross-border E-commerce Promotion Center, LinQiao Road 190#, NingBo, 315012, P. R. China
2
Ningbo Customs District, QinYi Road 66#, NingBo, 315012, P. R. China
3
Ningbo academy of science and technology for inspection and quarantine, QinYi Road 66#, NingBo, 315012, P. R. China
* Corresponding author’s e-mail: luochuan@customs.gov.cn
In the domestic production of recycled plastics, it is difficult to separate olefin polymers such as polyethylene and polypropylene. Therefore, the prerequisite for identifying the cargo-solid waste properties of recycled plastics is to determine the polymer composition. In this paper, Fourier transform infrared spectroscopy was used to detect polypropylene content in polyethylene and polypropylene blends. Under 2%-8% polypropylene content, an exponential relationship was shown in the ratio of characteristic peak area. This method features fast detection speed and accurate judgment. It can quickly determine whether the polypropylene content in the polyethylene and polypropylene blends is greater than 5% in the tariff inspection. Also, it can determine plastic solid waste attributes and identify whether polyethylene is mixed with a small amount of polypropylene content.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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