Effect of matrix ductility on the fracture behavior of rubber toughened epoxy resins.: An article from: Polymer Engineering and Science
Book Details
Author(s)Teng Ko Chen, Yi Hung Jan
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00093MDJO
ISBN-13978B00093MDJ2
AvailabilityAvailable for download now
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on May 15, 1995. The length of the article is 4148 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: This paper investigates the effect of matrix ductility on toughness in a carboxyl-terminated butadiene-acryionitrile copolymer (CTBN) toughened diglycidyl ether of bisphenol-A (DGEBA)-piperidine system. Two kinds of epoxides were blended separately into this system to change the matrix ductility. One was a rigid and polyfunctional 4,4[prime]-diaminodiphenol methane (MY720), and the other was a flexible diglycidyl ether of propylene glycol (DER732). The matrix [T.sub.g] was significantly changed, but without alteration of the microstructure of the dispersed rubbery phase. The result of fracture energy tests reveals that the toughness of the neat epoxy resins increases slightly with the increase in the resin ductility. The toughness of the rubber-modified epoxy resins increases strongly with matrix ductility. Studies on the morphology of the toughened systems and their fracture surfaces indicate that the size of the plastic deformation zone under constant rubbery-phase morphology is determined by the multiple but localized plastic shear yielding. Increasing matrix ductility increases the size of the plastic deformation zone by inducing more extensive shear yielding. In addition, fracture surfaces reveal that as the matrix rigidity is increased, an increasing proportion of the fracture energy is dissipated by rubber cavitation during crack initiation.
Citation Details
Title: Effect of matrix ductility on the fracture behavior of rubber toughened epoxy resins.
Author: Teng Ko Chen
Publication:Polymer Engineering and Science (Refereed)
Date: May 15, 1995
Publisher: Society of Plastics Engineers, Inc.
Volume: v35 Issue: n9 Page: p778(8)
Distributed by Thomson Gale
From the author: This paper investigates the effect of matrix ductility on toughness in a carboxyl-terminated butadiene-acryionitrile copolymer (CTBN) toughened diglycidyl ether of bisphenol-A (DGEBA)-piperidine system. Two kinds of epoxides were blended separately into this system to change the matrix ductility. One was a rigid and polyfunctional 4,4[prime]-diaminodiphenol methane (MY720), and the other was a flexible diglycidyl ether of propylene glycol (DER732). The matrix [T.sub.g] was significantly changed, but without alteration of the microstructure of the dispersed rubbery phase. The result of fracture energy tests reveals that the toughness of the neat epoxy resins increases slightly with the increase in the resin ductility. The toughness of the rubber-modified epoxy resins increases strongly with matrix ductility. Studies on the morphology of the toughened systems and their fracture surfaces indicate that the size of the plastic deformation zone under constant rubbery-phase morphology is determined by the multiple but localized plastic shear yielding. Increasing matrix ductility increases the size of the plastic deformation zone by inducing more extensive shear yielding. In addition, fracture surfaces reveal that as the matrix rigidity is increased, an increasing proportion of the fracture energy is dissipated by rubber cavitation during crack initiation.
Citation Details
Title: Effect of matrix ductility on the fracture behavior of rubber toughened epoxy resins.
Author: Teng Ko Chen
Publication:Polymer Engineering and Science (Refereed)
Date: May 15, 1995
Publisher: Society of Plastics Engineers, Inc.
Volume: v35 Issue: n9 Page: p778(8)
Distributed by Thomson Gale
