Effective Identification on Adulteration of Polyethylene With Post-consumer Ones

International Conference on Computer Information and Automation Engineering

计算机科学;运输工程

Zhao, S.^1 ; Qin, W.B.^1 ; Guo, J.F.^1 ; Liu, J.^1 ; Wang, Y.L.^1 ; Zhang, W.^1 ; Zhao, X.Y.^2 ; Wang, L.^1

Hebei Research Institution for Product Quality Supervision and Inspection, Shijiazhuang

050000, China^1

Department of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang

050000, China^2

关键词: Differential scanning calorimeters;    Doping content;    Melt flow index;    Post-consumer;    Processability;    Recycled polyethylene;    Thermal decomposition temperature;    Thermal gravimetric analyses (TGA);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/359/1/012028/pdf
DOI  :  10.1088/1757-899X/359/1/012028

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

This paper mainly describes the effective identification of the adulteration of polyethylene with post-consumer ones. Degradation would be happened when multiple processings occurred. The melt flow index (MFI) analysis, thermal gravimetric analysis (TGA), differential scanning calorimeter (DSC) were used to characterize the processability and thermal stabilities of virgin polyethylene and recycled polyethylene which adulterated post-consumer PE. The results indicated that MFI of PE increased with the increasing doping content. Adulterating reclaimed PE had effects on the thermal stability of PE, which led to lower thermal decomposition temperature. Melting peak of recycled LLDPE varied from merely single to double, which differently compared differently with virgin LLDPE. Besides, with the doping content of post-consumer LDPE, the melting temperature had a decreasing tendency.