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Title: Nanostructured thermoplastic polyimide films

Abstract

Structured films containing multi-walled carbon nanotubes (“MWCNTs”) have enhanced mechanical performance in terms of strength, fracture resistance, and creep recovery of polyimide (“PI”) films. Preferably, the loadings of MWCNTs can be in the range of 0.1 wt % to 0.5 wt %. The strength of the new PI films dried at 60° C. increased by 55% and 72% for 0.1 wt % MWCNT and 0.5 wt % MWCNT loadings, respectively, while the fracture resistance increased by 23% for the 0.1 wt % MWCNTs and then decreases at a loading of 0.5 wt % MWCNTs. The films can be advantageously be created by managing a corresponding shift in the annealing temperature at which the maximum strength occurs as the MWCNT loadings increase.

Inventors:
Issue Date:
Research Org.:
Tuskegee Univ., AL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805451
Patent Number(s):
10907026
Application Number:
14/698,467
Assignee:
Tuskegee University (Tuskegee, AL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FG52-05NA27039
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/28/2015
Country of Publication:
United States
Language:
English

Citation Formats

Aglan, Heshmat. Nanostructured thermoplastic polyimide films. United States: N. p., 2021. Web.
Aglan, Heshmat. Nanostructured thermoplastic polyimide films. United States.
Aglan, Heshmat. Tue . "Nanostructured thermoplastic polyimide films". United States. https://www.osti.gov/servlets/purl/1805451.
@article{osti_1805451,
title = {Nanostructured thermoplastic polyimide films},
author = {Aglan, Heshmat},
abstractNote = {Structured films containing multi-walled carbon nanotubes (“MWCNTs”) have enhanced mechanical performance in terms of strength, fracture resistance, and creep recovery of polyimide (“PI”) films. Preferably, the loadings of MWCNTs can be in the range of 0.1 wt % to 0.5 wt %. The strength of the new PI films dried at 60° C. increased by 55% and 72% for 0.1 wt % MWCNT and 0.5 wt % MWCNT loadings, respectively, while the fracture resistance increased by 23% for the 0.1 wt % MWCNTs and then decreases at a loading of 0.5 wt % MWCNTs. The films can be advantageously be created by managing a corresponding shift in the annealing temperature at which the maximum strength occurs as the MWCNT loadings increase.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 02 00:00:00 EST 2021},
month = {Tue Feb 02 00:00:00 EST 2021}
}

Works referenced in this record:

Saturable Absorber of Polyimide Containing Dispersed Carbon Nanotubes
patent-application, October 2008