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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gu, Chun-Hong Wang, Jia-Jun Yu, Yang Sun, Hui Shuai, Ning Wei, Bing |
| Description | Country affiliation: China Author Affiliation: Gu CH ( College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China.) |
| Abstract | A layer-by-layer (LBL) approach was used to assemble alternating layers of sodium alginate (ALG)/polyethyleneimine (PEI) on biaxially oriented poly(lactic acid) (BOPLA) films in order to produce bio-based all-polymer thin films with low gas permeability. Increasing the depositing of ALG and PEI from 0 to 30 layers results in large thickness variations (from 0 to 3.92 µm). After 30 ALG/PEI layers are deposited, the resulting assembly has an OTR of 1.22 cm(3)/(m(2) day atm). When multiplied by thickness, the resulting oxygen permeability (OP) is found to be less than 3.8×10(-17) cm(3) cm/cm(2) s Pa, which is almost 3 orders of magnitude lower than that of uncoated BOPLA film (1.8×10(-14) cm(3)cm/cm(2) s Pa). At the same time, the resulting multilayer-coated BOPLA films maintain high optical clarity and tensile properties. This unique barrier thin film has become a promising alternative to non-biodegradable synthetic food packaging materials. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Issue Number | 2 |
| Volume Number | 92 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-02-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Alginates Chemistry Lactic Acid Polyethyleneimine Polymers Food Packaging Glucuronic Acid Hexuronic Acids Oxygen Permeability Polyesters Tensile Strength Volatilization Water Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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