Graphene reinforced polyethylene terephthalate
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United States of America Patent
Stats
-
Aug 13, 2024
Grant Date -
Jan 28, 2021
app pub date -
Aug 10, 2020
filing date -
Mar 17, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A composition and a method are provided for graphene reinforced polyethylene terephthalate (PET). Graphene nanoplatelets (GNPs) comprising multi-layer graphene are used to reinforce PET, thereby improving the properties of PET for various new applications. Master-batches comprising polyethylene terephthalate with dispersed graphene nanoplatelets are obtained by way of compounding. The master-batches are used to form PET-GNP nanocomposites at weight fractions ranging between 0.5% and 15%. In some embodiments, PET and GNPs are melt compounded by way of twin-screw extrusion. In some embodiments, ultrasound is coupled with a twin-screw extruder so as to assist with melt compounding. In some embodiments, the PET-GNP nanocomposites are prepared by way of high-speed injection molding. The PET-GNP nanocomposites are compared by way of their mechanical, thermal, and rheological properties so as to contrast different compounding processes.
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International Classification(s)
- 2020 Application Filing Year
- C08J Class
- 2176 Applications Filed
- 924 Patents Issued To-Date
- 42.47 % Issued To-Date
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- C08J Class
- 0 % this patent is cited more than
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