کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4753127 | 1416512 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of graphene on the migration of two ultraviolet absorbents from graphene-LDPE composite films into a fatty food simulant
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of graphene on the migration of two ultraviolet absorbents from graphene-LDPE composite films into a fatty food simulant Effect of graphene on the migration of two ultraviolet absorbents from graphene-LDPE composite films into a fatty food simulant](/preview/png/4753127.png)
چکیده انگلیسی
The effect of graphene on the migration of ultraviolet absorbents from graphene-low density polyethylene (LDPE) composite films into fatty food simulant was studied. First, a gas chromatography mass spectrometry (GC-MS) method was developed to detect the total content of the two ultraviolet absorbents 2-hydroxy-4-n-octyloxybenzophenone (UV-531) and 2-(2â²-hydroxy-5â²-methylphenyl) (UV-P) in graphene-LDPE composite films. Toluene soluble extraction was selected to process the samples with different additives for its better extract effect. The standard curves were linear in the range of 0.01-1 μg/mL and had a good linear relationship (R > 0.99). The recoveries were 82.0%-99.3% with RSD 3.7%-10.0%. The limits of detection of UV-531, UV-P were 0.3 ng/mL and 0.5 ng/mL, respectively. The migration test reveals that the two ultraviolet absorbers had no interaction with each other on their migration into isooctane, but graphene hindered the migration of the two ultraviolet absorbers. The reason might be that the incorporated graphene reduce the number and/or the size of free volume within the polymer by occupying some of the free volume, which may affect the diffusion of the two ultraviolet absorbers; in addition, they are absorbed by the nearby graphene within the polymer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Packaging and Shelf Life - Volume 12, June 2017, Pages 9-15
Journal: Food Packaging and Shelf Life - Volume 12, June 2017, Pages 9-15
نویسندگان
Qin-Bao Lin, Xi-Zhen Liang, Qi-Zhi Su, Li-Jun Shan, Zhi-Wei Wang,