Amine-functionalized magnetic nanoparticles NiFe₂O₄@SiO₂@Amine (AMNP), and epoxy functionalized magnetic nanoparticles, CuFe₂O₄@SiO₂@Epoxy (EMNP) were synthesized in three steps. Homogeneous stable dispersion of AMNP and EMNP, at concentrations of 1, 5, 10, 15, 20 wt% in epoxy resin were prepared using stoichiometric amounts of 4,4’-diaminodiphenylsulfone (DDS) as a curing. The optimum ratio of AMNP and EMNP were found to be 5%, and these were investigated by the total enthalpy of the curing reaction using differential scanning calorimetry (DSC) thermograms at 10°C/min. The cure kinetics of epoxy resin-functional magnetic nanoparticles-DDS composites were studied using non-isothermal DSC thermograms at different heating rates (5, 10, 15, 20°C/min). The kinetic parameters of the curing process, such as activation energy (E_a), pre-exponential factor (A), and rate constant (k) were determined using several non-isothermal kinetic methods: Kissinger-Akahira-Sunose (KAS), Kissinger, Straink, Flynn-Wall-Ozawa (OFW), and Bosewell. The kinetic curing values obtained with different kinetic methods are well-matched. The E_a values were calculated in the range of 59.80 to 65.94, 57.69 to 63.92, and 45.38 to 52.45 kJ.mol⁻¹ for the DGEBA/DDS, DGEBA/DDS/AMNP, and DGEBA/DDS/EMNP systems respectively. Also, The A values, using the Kissinger method, were calculated to be in the range of 7.0 × 10⁵, 4.0 × 10⁵, and 0.2 × 10⁵ S⁻¹ for the DGEBA/DDS, DGEBA/DDS/AMNP, and DGEBA/DDS/EMNP systems respectively. The glass transition temperatures of cured resins were determined with DSC, and the surface morphology of the nanocomposites and also the dispersion of the nanoparticles were investigated using scanning electron microscopy (SEM).

胺官能化的磁性纳米粒子NiFe ₂ O ₄ @SiO ₂ @Amine（AMNP）和环氧官能化的磁性纳米粒子CuFe ₂ O ₄ @SiO ₂环氧（EMNP）分三步合成。使用化学计量的4,4'-二氨基二苯砜（DDS）作为固化剂，制备了浓度为1、5、10、15、20 wt％的AMNP和EMNP在环氧树脂中的均质稳定分散体。发现AMNP和EMNP的最佳比例为5％，并使用差示扫描量热法（DSC）差示热分析图以10°C / min通过固化反应的总焓进行研究。使用非等温DSC热谱图在不同的加热速率（5、10、15、20°C / min）下研究了环氧树脂功能磁性纳米颗粒-DDS复合材料的固化动力学。固化过程的动力学参数，例如活化能（E _a），预指数因子（A）和速率常数（k）是使用几种非等温动力学方法确定的：基辛格-赤平-Sunose（KAS），基辛格，Straink，Flynn-Wall-Ozawa（OFW）和Bosewell。用不同的动力学方法获得的动力学固化值是完全匹配的。所述Ë_一个中的59.80的范围内，计算值65.94，57.69至63.92，45.38和52.45到kJ.mol ^-1分别针对DGEBA / DDS，DGEBA / DDS / AMNP，和DGEBA / DDS / EMNP系统。另外，甲值，并使用基辛格方法，分别计算为在7.0×10的范围内⁵，4.0×10 ⁵和0.2×10 ⁵小号^-1分别用于DGEBA / DDS，DGEBA / DDS / AMNP和DGEBA / DDS / EMNP系统。用DSC测定固化树脂的玻璃化转变温度，并使用扫描电子显微镜（SEM）研究纳米复合材料的表面形态以及纳米颗粒的分散性。