Effect of melt temperature and skin-core morphology on the mechanical performance of nylon 6.(Abstract): An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB0008EU4K4
ISBN-13978B0008EU4K4
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on May 1, 2002. The length of the article is 4299 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: The crystalline texture and mechanical (tensile and flexural) properties of injection molded nylon 6 were evaluated to understand the influence of the melt temperature ([T.sub.mlt]), one of the key-processing variables. The mechanical properties are found to be sensitive to [T.sub.mit] only below ~ 250[degrees]C. Rapid quenching of the surface produces a skin with lower crystallinity than the core, which cools more slowly; because of this difference in the rate of cooling, the crystalline component in the skin is rich in [gamma] and that in the core is rich in [alpha] The thickness of this skin decreases from about 1.25 mm to 0.75 mm as [T.sub.mlt] increases from 225[degrees]C to 310[degrees]C. Higher tensile strength at yield, lower elongation at break and higher flexural strength were observed in specimens molded at lower [T.sub.mlt] These characteristics are associated with thicker and less ordered skin, and a lower crystallinity core. The role of the [T.sub.mlt] on microstructure and mechanical properties of injection molded nylon 6, the development of skin-core morphology, and the role of the residual stresses in the core are discussed.
Citation Details
Title: Effect of melt temperature and skin-core morphology on the mechanical performance of nylon 6.(Abstract)
Author: N. Sanjeeva Murthy
Publication:Polymer Engineering and Science (Refereed)
Date: May 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 5 Page: 940(11)
Article Type: Abstract
Distributed by Thomson Gale
From the author: The crystalline texture and mechanical (tensile and flexural) properties of injection molded nylon 6 were evaluated to understand the influence of the melt temperature ([T.sub.mlt]), one of the key-processing variables. The mechanical properties are found to be sensitive to [T.sub.mit] only below ~ 250[degrees]C. Rapid quenching of the surface produces a skin with lower crystallinity than the core, which cools more slowly; because of this difference in the rate of cooling, the crystalline component in the skin is rich in [gamma] and that in the core is rich in [alpha] The thickness of this skin decreases from about 1.25 mm to 0.75 mm as [T.sub.mlt] increases from 225[degrees]C to 310[degrees]C. Higher tensile strength at yield, lower elongation at break and higher flexural strength were observed in specimens molded at lower [T.sub.mlt] These characteristics are associated with thicker and less ordered skin, and a lower crystallinity core. The role of the [T.sub.mlt] on microstructure and mechanical properties of injection molded nylon 6, the development of skin-core morphology, and the role of the residual stresses in the core are discussed.
Citation Details
Title: Effect of melt temperature and skin-core morphology on the mechanical performance of nylon 6.(Abstract)
Author: N. Sanjeeva Murthy
Publication:Polymer Engineering and Science (Refereed)
Date: May 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 5 Page: 940(11)
Article Type: Abstract
Distributed by Thomson Gale
