Novel Terpolymers: Poly(keto–amine–urea)S

1996 ◽  
Vol 8 (2) ◽  
pp. 225-231 ◽  
Author(s):  
Hasmukh S Patel ◽  
Manhar J Lad
Keyword(s):  
Epoxy Resin ◽  
Conductometric Titration ◽  
Reinforced Composites ◽  
Resin System ◽  
Amino Groups ◽  
Thermally Stable Polymers ◽  
Epoxy Resin System ◽  
Glass Fibre Reinforced ◽  
Glass Fibre Reinforced Composites ◽  
Fibre Reinforced Composites

Thermally stable polymers containing keto–amine–urea groups have been prepared by condensation of keto–amino groups containing diamine and various diisocyanates. The resulting polymer samples have been characterized by elemental analysis and IR spectra, and Mn estimated by non-aqueous conductometric titration and thermogravimetry. Curing of commercial epoxy resin-DGEBA by employing these polymers was scanned on a differential scanning colorimeter (DSC). Glass fibre reinforced composites (i.e. laminates) based on such terpolymer–epoxy resin system have also been prepared and characterized.

Novel Bismaleimide–Epoxy Resin System: II

1996 ◽  
Vol 8 (2) ◽  
pp. 233-242
Author(s):  
Hasmukh S Patel ◽  
Sanket N Shah
Keyword(s):  
Epoxy Resin ◽  
Average Molecular Weight ◽  
Conductometric Titration ◽  
Diglycidyl Ether ◽  
Spectral Studies ◽  
Reinforced Composites ◽  
Resin System ◽  
Number Average Molecular Weight ◽  
Scanning Calorimetry ◽  
Epoxy Resin System

Novel diamines, namely N, N′-bis[1-(2-methyl-4-aminophenyl)ethanonyl]-1,4- benzenediamine (BMAED 1) and N, N′-bis[1-(4-methyl-3-animophenyl)ethanonyl]-1,4-benzenediamine (BMAED 2), have been prepared and reacted with various bismaleimides (BM) at a BM:diamine ratio of 1:2. The resulting oligoimides have been characterized by elemental analysis, IR spectral studies and the number average molecular weight ( Mn) estimated by non-aqueous conductometric titration and thermogravimetry. Some of the oligomides have been modified by addition (i.e. curing reaction) of epoxy resin, namely the diglycidyl ether of bisphenol-A, and studied by differential scanning calorimetry (DSC). The glass- and carbon-reinforced composites have also been prepared and characterized by their mechanical properties.

scholarly journals Modified Castor Oil as an Epoxy Resin Curing Agent

2004 ◽  
Vol 1 (1) ◽  
pp. 11-16 ◽  
Author(s):  
B. P. Patel ◽  
H. S. Patel ◽  
S. R. Patel
Keyword(s):  
Epoxy Resin ◽  
Glass Fibre ◽  
Castor Oil ◽  
Thermo Gravimetric Analysis ◽  
Agricultural Product ◽  
Gravimetric Analysis ◽  
Reinforced Composites ◽  
Glass Fibre Reinforced ◽  
Glass Fibre Reinforced Composites ◽  
Fibre Reinforced Composites

A castor oil, an agricultural product, is an unsaturated material. Hence the castor oil is brominated by bromine liquid. The brominated castor oil (BCO) was then reacted with excess of aliphatic diaminesviz; ethylene diamine, 1,3-propane diamine and 1,6-hexane diamine. The resultant amino functionalized castor oil (ACO) samples were then characterized by elemental analysis, IR spectral study and number of amino groups. All the three ACO samples were then employed for the curing of commercial Brominated epoxy resin. The curing of epoxy resin by ACO was monitored on differential scanning calorimeter (DSC) and based on the DSC study their glass fibre reinforced composites (GRC) were fabricated. The cured samples (i.e. unreinforced) were also subjected to thermo gravimetric analysis (TGA). The chemical, mechanical and electrical properties of the glass fibre reinforced composites (GRC) were also evaluated.

The Influence of Processing Additives on the Properties of Glass-fibre-reinforced Composites Based on Biobased Polyamide 1010

2017 ◽  
Vol 44 (7) ◽  
pp. 43-48 ◽  
Author(s):  
A.A. Nikiforov ◽  
S.I. Vol'fson ◽  
N.A. Okhotina ◽  
R. Rinberg ◽  
L. Kroll
Keyword(s):  
Glass Fibre ◽  
Reinforced Composites ◽  
Glass Fibres ◽  
Glass Fibre Reinforced ◽  
Glass Fibre Reinforced Composites ◽  
Polyamide 1010 ◽  
Fibre Reinforced Composites ◽  
Properties Of Composites

The results of investigating the influence of processing additives from a group of lubricants on the degree of comminution of glass fibres during extrusion and the properties of composites based on biobased polyamide 1010 with different degrees of filling with chopped glass fibre are presented.

Sign in / Sign up

Export Citation Format

Share Document