Modification of physical properties of thermoplastic polyurethane by incorporation of low-molecular-weight diurethanes.: An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB004G8NUP4
ISBN-13978B004G8NUP0
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on December 1, 2010. The length of the article is 5263 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.
From the author: In this study, two diurethanes were synthesized and blended with thermoplastic polyurethane (TPU), and the effects of the incorporation of these diurethanes on the physical properties of the TPU were evaluated. The diurethanes were obtained reacting 4,4'-diphenylmethane-diisocyanate with 1-butanol (Additive 1) or 1-octanol (Additive 2). An increase in the amount of Additive 1 promoted a reduction in the rigid phase glass transition temperature ([T.sub.g]), while an increase in the amount of Additive 2 caused an increase in the [T.sub.g] of this phase. Processing of the TPU increased the hardness and elastic modulus and decreased the tensile stress at break. Addition of diurethanes did not promote significant changes in the hardness and stressstrain behavior, compared with the processed TPU; however, increasing the additive content decreased the elongation and tensile stress at break. Scanning electron microscopy micrographs showed that incorporation of diurethanes into TPU led to migration of these additives. POLYM. ENG. SCI., 50:2321-2328, 2010. [C] 2010 Society of Plastics Engineers
Citation Details
Title: Modification of physical properties of thermoplastic polyurethane by incorporation of low-molecular-weight diurethanes.
Author: Rudinei Fiorio
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: December 1, 2010
Publisher: Society of Plastics Engineers, Inc.
Volume: 50 Issue: 12 Page: 2321(8)
Distributed by Gale, a part of Cengage Learning
From the author: In this study, two diurethanes were synthesized and blended with thermoplastic polyurethane (TPU), and the effects of the incorporation of these diurethanes on the physical properties of the TPU were evaluated. The diurethanes were obtained reacting 4,4'-diphenylmethane-diisocyanate with 1-butanol (Additive 1) or 1-octanol (Additive 2). An increase in the amount of Additive 1 promoted a reduction in the rigid phase glass transition temperature ([T.sub.g]), while an increase in the amount of Additive 2 caused an increase in the [T.sub.g] of this phase. Processing of the TPU increased the hardness and elastic modulus and decreased the tensile stress at break. Addition of diurethanes did not promote significant changes in the hardness and stressstrain behavior, compared with the processed TPU; however, increasing the additive content decreased the elongation and tensile stress at break. Scanning electron microscopy micrographs showed that incorporation of diurethanes into TPU led to migration of these additives. POLYM. ENG. SCI., 50:2321-2328, 2010. [C] 2010 Society of Plastics Engineers
Citation Details
Title: Modification of physical properties of thermoplastic polyurethane by incorporation of low-molecular-weight diurethanes.
Author: Rudinei Fiorio
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: December 1, 2010
Publisher: Society of Plastics Engineers, Inc.
Volume: 50 Issue: 12 Page: 2321(8)
Distributed by Gale, a part of Cengage Learning
