Study on the synthesis and physical properties of thermoplastic polyurethane containing PEG
Date Issued
2005
Date
2005
Author(s)
Su, Cheng-Feng
DOI
zh-TW
Abstract
This research studies breathable/waterproof thermoplastic polyurethane film which contains PEG (Polyethylene Oxide Glycol) at main chain, alone or along with PEG at side chains. Mechanical strengths, water vapor permeability and other properties are discussed and compared side by side by different factors, such as, hard/soft segment ratio, PEG side chain percentage, isocyanate index, and different molecular weight of PEG used in main chain.
FTIR (Fourier Transform Infrared Spectrometer) is used to trace the extent of reaction and to characterize the formation of TPU. The results show higher water permeability with higher percentage of PEG in the main chain, however, it comes with lower mechanical strengths. Thermo Gravimetric Analysis (TGA), Differential Scanning Colarimetry (DSC), Dynamic Mechanical Analysis (DMA), are used to characterize thermal properties of TPU, and scanning Electron Microscope (SEM) is used to observe the morphology.
Subjects
熱塑性聚胺酯彈性體
透氣防水
PEG
TPU
breathable/waterproof
WVP
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-94-R92549008-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):912596596e2d0c3da36761aa64aafc27