Chemical toughening of epoxies. I. Structural modification of epoxy resins by reaction with hydroxy-terminated poly (butadiene-co-acrylonitrile)


Autoria(s): Sankaran, S; Chanda, Manas
Data(s)

05/04/1990

Resumo

In an attempt to toughen the epoxy resin matrix for fiber-reinforced composite applications, a chemical modification procedure of a commercially available bisphenol-A-based epoxy resin using reactive liquid rubber HTBN [hydroxy-terminated poly(butadiene-co-acrylonitrile)] and TDI (tolylene diisocyanate) is described. The progress of the reaction and the structural changes during modification process are studied using IR spectroscopy, viscosity data, and chemical analysis (epoxy value determination). The studies support the proposition that TDI acts as a coupling agent between the epoxy and HTBN, forming a urethane linkage with the former and an oxazolidone ring with the latter. The chemical reactions that possibly take place during the modification are discussed.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/34901/1/Chemical.pdf

Sankaran, S and Chanda, Manas (1990) Chemical toughening of epoxies. I. Structural modification of epoxy resins by reaction with hydroxy-terminated poly (butadiene-co-acrylonitrile). In: Journal of Applied Polymer Science, 39 (7). pp. 14591-1466.

Publicador

John Wiley and Sons

Relação

http://onlinelibrary.wiley.com/doi/10.1002/app.1990.070390704/abstract;jsessionid=0B25F3FE5DC19E91AA4BB7FC67619061.d02t01

http://eprints.iisc.ernet.in/34901/

Palavras-Chave #Chemical Engineering
Tipo

Journal Article

PeerReviewed