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4月16日 · The unfilled epoxy matrix, defined hereinafter with the acronym EM, is composed of the tetraglycidyl methylene dianiline (TGMDA) tetrafunctional resin (80 wt%), 1,4-Butanediol diglycidyl ether (BDE) reactive diluent (20 wt%), and diaminodiphenyl sulfone (DDS) curing agent in a stoichiometric quantity solubilized at 120 °C for 20 min.

2024年6月18日 · In this work, the acronym ER was used to indicate the unfilled epoxy matrix where the resin tetraglycidyl methylene dianiline (TGMDA) (80 mass%) was mixed with 1,4-Butanediol diglycidyl ether (BDE) (20 mass%) (acting as a reactive diluent), and a stoichiometric quantity of the hardener agent diaminodiphenyl sulfone (DDS) was solubilized in the ...

1986年10月1日 · The application of Fourier transform two-dimensional n.m.r. spectroscopy to the study of the epoxy resin monomer, tetraglycidyl methylenedianiline, TGMDA, is reported. The combination of homonuclear proton 2D-J resolved and shift correlated SUPERCOSY experiments permits the complete elucidation of the complex spectrum due to the glycidylamine ...

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.

在目前的研究中，合成了一种四官能芳族环氧预聚物，即四缩水甘油基亚甲基二苯胺 (TGMDA)，并使用 1 H NMR（核磁共振）和 FT-IR（傅里叶变换红外光谱）光谱技术。 使用先进的流变仪在异丙醇中测试流变特性。 评价了温度和溶液浓度对芳香族预聚物环氧溶液粘度的影响。 在质量浓度（%；0.5、1.0、1.5、2.5 和 5%）和温度（298-328 K）的溶液中，对环氧预聚物在异丙醇中的溶液的不同温度进行剪切流变学研究。 前沿分子轨道的能量，通过 B3LYP 方法计 …

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 …

1999年11月17日 · Systematic Fourier transform infrared (FTIR) spectroscopy studies of the cure reaction of epoxy and epoxy–cyanate during thermal cycles are presented. FTIR studies indicate that the reaction of TGMDA monomer is total but the network contains a …