Properties and preparation of thermoplastic polyurethane/silica hybrids using a modified sol-gel process.(Author abstract): An article from: Polymer Engineering and Science
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Book Details
Author(s)
S.-M. Lai, S.-D. Liu
Publisher
Thomson Gale
ISBN / ASIN
B000SKKDFO
ISBN-13
978B000SKKDF2
Marketplace
France 🇫🇷
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Description
This digital document is an article from Polymer Engineering and Science, published by Thomson Gale on February 1, 2007. The length of the article is 4777 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Thermoplastic polyurethane elastomer/silica hybrids (TPU/Si[O.sub.2]) were prepared using a modified sol-gel process. This modified approach used tetrahydrofuran (THF) to extract polysilicic acid from aqueous sodium metasilicate solutions. A THF or aqueous solution containing sol particles was mixed with TPU solution to form TPU/silica hybrids. The Fourier transform infrared (FTIR) spectra and dynamical mechanical properties were recorded to depict the interfacial interaction. Storage modulus increased due to the reinforcement of the in situ silica. Tear strength decreased significantly with increasing in situ silica content. Cutting strength decreased slightly due to crack tip confinement. The modified process with extraction showed improved mechanical properties and better optical properties than the conventional sol-gel process without extraction. The fracture surface was revealed through SEM (scanning electron microscopy) to observe the degree of Si[O.sub.2] dispersion, which in turn confirmed the optical and mechanical property results. POLYM. ENG. SCI., 47:77-86, 2007. [c] 2007 Society of Plastics Engineers
Citation Details
Title: Properties and preparation of thermoplastic polyurethane/silica hybrids using a modified sol-gel process.(Author abstract)
Author: S.-M. Lai
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: February 1, 2007
Publisher: Thomson Gale
Volume: 47 Issue: 2 Page: 77(10)
Article Type: Author abstract
Distributed by Thomson Gale
From the author: Thermoplastic polyurethane elastomer/silica hybrids (TPU/Si[O.sub.2]) were prepared using a modified sol-gel process. This modified approach used tetrahydrofuran (THF) to extract polysilicic acid from aqueous sodium metasilicate solutions. A THF or aqueous solution containing sol particles was mixed with TPU solution to form TPU/silica hybrids. The Fourier transform infrared (FTIR) spectra and dynamical mechanical properties were recorded to depict the interfacial interaction. Storage modulus increased due to the reinforcement of the in situ silica. Tear strength decreased significantly with increasing in situ silica content. Cutting strength decreased slightly due to crack tip confinement. The modified process with extraction showed improved mechanical properties and better optical properties than the conventional sol-gel process without extraction. The fracture surface was revealed through SEM (scanning electron microscopy) to observe the degree of Si[O.sub.2] dispersion, which in turn confirmed the optical and mechanical property results. POLYM. ENG. SCI., 47:77-86, 2007. [c] 2007 Society of Plastics Engineers
Citation Details
Title: Properties and preparation of thermoplastic polyurethane/silica hybrids using a modified sol-gel process.(Author abstract)
Author: S.-M. Lai
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: February 1, 2007
Publisher: Thomson Gale
Volume: 47 Issue: 2 Page: 77(10)
Article Type: Author abstract
Distributed by Thomson Gale
