Abstract
PET/TiO2 composite film is the most widely used film for polymer-laminated steel, and the migration of TiO2 is very important for the safety evaluation of its packaged food. Microwave digestion, wet digestion and dry ashing were used for pretreatment of composite film to determine the content of TiO2 in composite film. Migration tests were carried out at 40°C, 60°C and 80°C 4% using acetic acid and 50% ethanol as the acid and ester food simulants. The migration amount of TiO2 was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). With increasing temperature and time, the migration of TiO2 increased. In 4% acetic acid, the migration amount of TiO2 at 40°C for 10 days was 1.88 mg kg-1 and the migration amount at 80°C for 8 h was 3.32 mg kg-1, indicating that the effect of temperature on migration was more obvious. Under the same conditions, the migration amount of TiO2 in 4% acetic acid was greater than in 50% ethanol. X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimeter (DSC) were used to analyse the crystal structure, morphology, chemical groups and thermal properties of the film before and after the migra...Continue Reading
References
Sep 7, 2007·Journal of Hazardous Materials·Sule DemirelMustafa Soylak
Jun 10, 2010·The European Respiratory Journal·S HussainP H M Hoet
Sep 23, 2010·Nanotoxicology·Hedeer JawadSian E Harding
Aug 17, 2011·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Huseyin Altundag, Mustafa Tuzen
Jan 24, 2012·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·M DemontJ Van Loco
Sep 11, 2014·Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica·Jia-Rui WuXiao-Guang Sheng
Dec 30, 2014·Archives of Environmental Contamination and Toxicology·Vaiyapuri Subbarayan PeriasamyAli A Alshatwi
Apr 2, 2015·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Susana Addo NtimGregory O Noonan
Dec 23, 2015·International Journal of Biological Macromolecules·Qingyan HeShaoyun Wang
Aug 4, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Asako OzakiYoko Kawamura
Nov 1, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Fang LiuHuai-Ning Zhong
Dec 10, 2016·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Viviana GoljaSaša Novak
Apr 22, 2017·Ultrasonics Sonochemistry·Mohamed Mohamady Ghobashy