Modification of Phenol Formaldehyde Resin for Improved Mechanical Properties


Autoria(s): Parameswaran, P S; Dr. Eby Thomas, Thachil
Data(s)

31/10/2013

31/10/2013

30/12/2009

Resumo

Phenolic resins suffer from the presence of microvoids on curing. This often leads to less than satisfactory properties in the cured resin. This disadvantage has limited the use of phenolic resins to some extent. This study is an attempt to improve the mechanical properties of the phenolic resol resins by chemical modification aimed at reducing the microvoid population. With this end in view various themoset resins synthesised under predetennined conditions have been employed for modifying phenolic resols. Such resins include unsaturated polyester, epoxy and epoxy novolac prepolymers. The results establish the effectiveness of these resins for improving the mechanical properties of phenolics. Experimental and analytical techniques used include FTIR, DMA, TGA, SEM and mechanical property evaluation. While most of the modifier resins employed give positive results the effect of adding UP is found to be surprising as well as impressive.

Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology

Cochin University of Science and Technology

Identificador

http://dyuthi.cusat.ac.in/purl/3088

Idioma(s)

en

Publicador

Cochin University of Science and Technology

Palavras-Chave #Thermoset resins #Phinolic resin #Fibre reinforced plastic #Phenolic resol resin
Tipo

Thesis