High Performance Resins for Aeronautical Applications - Final Report

Sridhar, MK and Kanakalatha, P and Kiran, V Pandare and Chandra, Ajay and Sugunalakshmi, M and Padma, G and Padmavathi, T (2000) High Performance Resins for Aeronautical Applications - Final Report. Project Report. National Aerospace Laboratories, Bangalore.

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The presence of controlled molecular weight backbone like aromatic ethers or dicyclopentadiene novolaks in resin systems give improved fracture toughness. Liquid crystallinity also gives resins with higher fracture toughness. Endcapping these systems /with cyanates give resins which form thermally stable networks. The cyanate end caps I form cyclic aromatic rings during cure resulting in high T,, low moisture absorption and better retention of mechanical properties at elevated temperatures. A few such systems were developed and evaluated. The dicyanate of Bisphenol A, liquid crystalline epoxy: diglycidyl ether of Chydroxy phenyl-4'hydroxy benzoate and the cyanate ester of I phenol-dicyclopentadiene-novolak were the systems evaluated.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Cynateester, liquid crystalline epoxy, Phenol dicyclopentadiene-novolak & its derivatives, moisture absorption, fracture toughness
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 10 not found.
Date Deposited: 05 Mar 2012 10:11
Last Modified: 07 Aug 2015 06:26
URI: http://nal-ir.nal.res.in/id/eprint/10357

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