Formation of Multiple Networks in Cis-1, 4-Polybutadiene: Dynamical Viscoelasticity, Gel Content and Cross-Link Density

Autor:	Shugao Zhao, Zhai Jinting, Ping Zhang, Junxue Zhai, Li Xiang
Rok vydání:	2020
Předmět:	Imagination Thesaurus (information retrieval) Search engine Polybutadiene Materials science Polymer science media_common.quotation_subject Content (measure theory) Cross-link Viscoelasticity media_common
Zdroj:	IOP Conference Series: Materials Science and Engineering. 774:012053
ISSN:	1757-899X 1757-8981
Popis:	The formation of multiple networks of cis-1, 4-polybutadiene rubber (BR) with sulfur and carbon black (CB) were discussed by analysing the curing curve, gel content, cross-linking density (XLD) and dynamic viscoelasticity. XLD and gel test show the network from chains entanglement and sulfur cross-link existing in unfilled BR, in addition there is another network from CB in filled BR. Networks from sulfur and CB cross-links has two different peaks of loss modulus (G”) and loss tangent at different dynamic strain. Furthermore, the average bonding number of each chain to form the network is calculated from the sulfur cross-link density. There is two percolation of G‘0.01Hz or gel content as the average bonding number increased in curing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6745d6ee37fb68c79c743591229aa9e4 https://doi.org/10.1088/1757-899x/774/1/012053 Zobrazit plný text záznamu