國立虎尾科技大學 |

Functional Nanocomposite Coatings for Use in Food Packaging.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Functional Nanocomposite Coatings for Use in Food Packaging./
作者:	Webb, Camden.
面頁冊數:	1 online resource (108 pages)
附註:	Source: Masters Abstracts International, Volume: 85-08.
Contained By:	Masters Abstracts International85-08.
標題:	Metals. -
電子資源:	click for full text (PQDT)
ISBN:	9798381467956

Functional Nanocomposite Coatings for Use in Food Packaging.
Webb, Camden.

Functional Nanocomposite Coatings for Use in Food Packaging. - 1 online resource (108 pages)

Source: Masters Abstracts International, Volume: 85-08.

Thesis (M.Sc.)--California Polytechnic State University, 2023.

Includes bibliographical references

Plastics are a class of materials known for their cost and property advantages, increasing significantly in their usage worldwide. Unfortunately, these benefits come with an increasingly concerning environmental impact. A combination of inadequate disposal options and combinations of materials have led to environmental disasters that will impact generations. One of the worst areas for plastic waste is food packaging. Plastic as a material generally excels at durability and longevity, but as food packaging, it outlives its intended purpose by several orders of magnitude. This leads to plastic food packaging materials sitting in landfill or leading to the environment for hundreds of years. Because of this, there is a strong motivation to develop food packaging materials that are biodegradable, yet still maintain the properties that make plastic better than other classes of materials. Food packaging has many forms, but in general, the most important aspects are cost, mechanical, and oxygen and water barrier properties. To achieve an end-product that excels in these aspects, combinations of materials called composites may be developed. Nanocomposites are a subcategory of composites composed of a matrix material and nanomaterials, separate phases that interact with one another in a number of ways. This research is focused on increasing the mechanical and barrier properties of polyvinyl alcohol, the most commercially-viable biodegradable polymer. The nanomaterials used were graphene oxide (GO) and cellulose nanofibers (CNF) for mechanical and barrier reinforcement. Five sample compositions were produced: a control PVA, CNF, 1 wt% GO, 5 wt% GO, and 10 wt% GO, which were drawn down on uncoated paper and cast by themselves. Testing of these nanocomposites included oxygen transmission, mechanical, and thermal property analysis, and various solvent-interaction testing including absorption of water and oil, Cobb testing, and water vapor permeation. With the addition of CNF and GO to PVA, there was an observed increase in barrier properties through a reduction of hydrophilicity and water absorption, and oxygen permeability.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798381467956Subjects--Topical Terms:

563369
Metals.
Index Terms--Genre/Form:

554714
Electronic books.

Functional Nanocomposite Coatings for Use in Food Packaging.
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