2022年10月1日 · Aerospace-grade prepreg resin films based on multifunctional tetraglycidyl-4,4′-methylenedianiline (TGMDA), triglycidyl p-aminophenol (TGAP), Bisphenol A diglycidyl ether (DGEBA) and curing agent 4,4'diaminodiphenyl sulfone (DDS) are investigated in terms of tackiness by probe testing.

Aerospace-grade prepreg resin films based on multifunctional tetraglycidyl-4,4′-methylenedianiline (TGMDA), triglycidyl p-aminophenol (TGAP), Bisphenol A diglycidyl ether (DGEBA) and curing agent...

2022年7月9日 · Among the base resins that have epoxy groups, TGMDA, with the largest number of epoxy groups (four), undergoes more molecular interactions between the polymer chains and inhibits movement with stronger bonding strength, resulting in higher stiffness.

2022年4月16日 · This paper proposes a new multifunctional flame retardant carbon nanofiber/glycidyl polyhedral oligomeric silsesquioxane (GPOSS) epoxy formulation specially designed for lightweight composite materials capable of fulfilling the ever-changing demands of the future aerospace industry.

1986年10月1日 · In this paper the application of nuclear magnetic resonance (n.m.r.) techniques for the analysis of the proton (1H) spectrum of the commonly used epoxy resin in the graphite fibre reinforced composite, tetraglycidyl methylenedianiline (TGMDA) is reported.

Our poly-epoxy is composed of the tetra-functional resin tetraglycidyl methylene dianiline (TGMDA) (Fig. 3) and of the two hardeners 4,4′-methylenebis (2,6-diethylaniline) (MDEA) (Fig. 3a)...

2022年10月21日 · In this paper, we have formulated, prepared, and characterized aeronautic nanofilled resins based on a tetrafunctional epoxy precursor TGMDA. The presence of the reactive diluent BDE in the epoxy mixture reduces the viscosity values thus allowing good dispersion of the carbon nanotubes CNT and graphene nanoparticles GNP within the polymer …

2022年10月5日 · In the current study, a tetra-functional aromatic epoxy pre-polymer namely, tetraglycidyl methylenedianiline (TGMDA) was synthesized and characterized using 1 H NMR (Nuclear Magnetic Resonance) and FT-IR (Fourier …

Another major group of epoxy monomers derived from epichlorohydrin is that comprising monomers synthesized with an aromatic amine, such as methylene dianiline (TGMDA) (Table 1.1 b). Oxirane groups can be generated by peroxidation of carbon – carbon double bonds. Types of such oligomers are epoxidized oils or cycloaliphatic oxides (Table 1.1 c).

As shown in Fig. 5.9, the structure of tetraglycidyl methylene dianiline epoxy, the most important glycidyl amine, is characterized by four epoxy... Resin II contains tetraglycidyl methylene dianiline (TGMDA) as the principal epoxide with small amounts of a cresol novolac and DGEBA.