Crosslinking of polybutadiene rubber without any vulcanization agent.: An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00098BP02
ISBN-13978B00098BP07
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 August 1, 1998. The length of the article is 4021 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: Polybutadiene rubber with 10% vinyl unsaturation has been crosslinked without the addition of any vulcanization chemicals. The crosslinks have been created through treatment at high temperature (240-250 [degrees] C) and elevated pressure ([less than] 293 MPa) in a plunger type mold. The treatment time needed to achieve a crosslinked material is of the order of a few minutes and the reaction rate is shown to be dependent upon the temperature as well as upon the pressure applied. As a result of the severe treatment, some degradation reactions may be expected but careful FTIR analysis shows no increased oxidation. There is some consumption of the vinyl unsaturation, to an amount comparable to the number of crosslinks formed. The presence of carbon black increases the measured crosslink density, as expected, but at higher pressures the amount of extra network material, because of the carbon black, is much larger than at lower pressures, suggesting that the carbon black plays a critical role in the network formation process. The stress relaxation properties in compression of the rubber material were investigated and found to be comparable to those of a peroxide vulcanizate.
Citation Details
Title: Crosslinking of polybutadiene rubber without any vulcanization agent.
Author: Martin Bellander
Publication:Polymer Engineering and Science (Refereed)
Date: August 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n8 Page: p1254(7)
Distributed by Thomson Gale
From the author: Polybutadiene rubber with 10% vinyl unsaturation has been crosslinked without the addition of any vulcanization chemicals. The crosslinks have been created through treatment at high temperature (240-250 [degrees] C) and elevated pressure ([less than] 293 MPa) in a plunger type mold. The treatment time needed to achieve a crosslinked material is of the order of a few minutes and the reaction rate is shown to be dependent upon the temperature as well as upon the pressure applied. As a result of the severe treatment, some degradation reactions may be expected but careful FTIR analysis shows no increased oxidation. There is some consumption of the vinyl unsaturation, to an amount comparable to the number of crosslinks formed. The presence of carbon black increases the measured crosslink density, as expected, but at higher pressures the amount of extra network material, because of the carbon black, is much larger than at lower pressures, suggesting that the carbon black plays a critical role in the network formation process. The stress relaxation properties in compression of the rubber material were investigated and found to be comparable to those of a peroxide vulcanizate.
Citation Details
Title: Crosslinking of polybutadiene rubber without any vulcanization agent.
Author: Martin Bellander
Publication:Polymer Engineering and Science (Refereed)
Date: August 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n8 Page: p1254(7)
Distributed by Thomson Gale
