Development of Thermoplastic Polyurethane-Hexagonal Boron Nitride Composite Foams with Enhanced Effective Thermal Conductivity

Simple item page
dc.contributor.advisorLeung, Siu-Ning
dc.creatorGhariniyat, Parisa
dc.date.accessioned2018-05-28T12:57:41Z
dc.date.available2018-05-28T12:57:41Z
dc.date.copyright2017-12-15
dc.date.issued2018-05-28
dc.date.updated2018-05-28T12:57:41Z
dc.degree.disciplineMechanical Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractThermoplastic polyurethane (TPU)-hexagonal boron nitride (hBN) composites fabricated by batch foaming were studied in this study. The results of this research demonstrated that by CO2 foaming it was possible to produce TPU foams at relatively low temperatures (60C). The results indicated that the cell size and cell density range are significantly wider at lower saturation pressures to varying foaming temperatures. While TPU foams usually yield extremely high cell population density and small cell size, by applying the appropriate foaming conditions, we prepared foams with a wide range of cell sizes, from 21 to 170 m, and cell population density from 105 to 108 pore/cm3. These conditions have been used to investigate the foaming-assisted filler alignment in TPU composite and nanocomposite foams for tailoring the thermal conductivity. Foamed samples at lower saturation temperatures (i.e. 20 and 40C) yielded higher thermal conductivity than solid counterparts.
dc.identifier.urihttp://hdl.handle.net/10315/34557
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectMechanical engineering
dc.subject.keywordsThermoplastic polyurethane (TPU)
dc.subject.keywordsHexagonal boron nitride (hBN)
dc.subject.keywordsCO2 foaming
dc.subject.keywordsTPU foams
dc.subject.keywordsFoaming-assisted filler alignment
dc.subject.keywordsTPU composite and nanocomposite foams
dc.subject.keywordsThermal conductivity
dc.subject.keywordsHigher thermal conductivity
dc.subject.keywordsThermally conductive polymer composites
dc.subject.keywordsPolymer
dc.subject.keywordsFiller
dc.titleDevelopment of Thermoplastic Polyurethane-Hexagonal Boron Nitride Composite Foams with Enhanced Effective Thermal Conductivity
dc.typeElectronic Thesis or Dissertation

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Ghariniyat_Parisa_2018_Master.pdf
Size:
4.47 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
license.txt
Size:
1.83 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
YorkU_ETDlicense.txt
Size:
3.38 KB
Format:
Plain Text
Description:
Download

Collections

Mechanical Engineering

All items in the YorkSpace institutional repository are protected by copyright, with all rights reserved except where explicitly noted.