Study on the behavior and mechanism of polycarbonate with hot-water aging

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Kong, L.P.^1 ; Zhao, Y.X.^1 ; Zhou, C.H.^1 ; Huang, Y.H.^1 ; Tang, M.^1 ; Gao, J.G.^2

Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Qingdao

266042, China^1

Qingdao Exit-and-Entry Inspection and Quarantine Bureau, Qingdao

266001, China^2

关键词: Absorption intensity;    Absorption wavelengths;    Bisphenol a polycarbonates;    Color changes;    Hot water aging;    Internal defects;    Phenolic hydroxyl;    UV-vis spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012059/pdf
DOI  :  10.1088/1757-899X/137/1/012059

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The present work was concerned with hot-water aging behavior and mechanism of Bisphenol A polycarbonate (PC) used as food and packaging materials. It indicated that with the aging time prolonged, PC sample had internal defects and the mechanical properties of PC materials changed not too much, molecular weight decreased, thermal stability declined. Phenolic hydroxyl absorption intensity enhanced in IR spectra and the maximum absorption wavelength red shift of benzene in UV-Vis spectra, the level of BPA increased. The color change of PC sample was not apparent.