An anti-oxidation hybrid particle and its polymer-based composite
A technology of hybrid particles and composite materials, which is applied in the field of anti-oxidation hybrid particles and polymer-based composite materials, which can solve the problems that base metals are easily oxidized, achieve good oxidation resistance and mechanical properties, and improve dielectric properties Constant, structurally stable effect
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Embodiment 1
[0057] This example provides a barium titanate-copper hybrid particle with oxidation resistance, which is prepared through the following steps, and the specific preparation process is as follows: figure 1 Shown:
[0058] Polyethylene glycol 4000 (PEG-4000) 0.25g and CuSO 4 ·5H 2 O 3.0g was dissolved in 100mL ethylene glycol, stirred ultrasonically for 20min, then added 5.0g of BaTiO 3 (100nm), ultrasonically stirred for 30min until the solution turned into a blue suspension;
[0059] Transfer the blue suspension to a three-necked flask and put it in an oil bath. The temperature of the oil bath is 160-180°C. After 2 hours of reaction, stop heating and continue stirring for 5 minutes. During the whole process, the protective gas nitrogen is continuously introduced;
[0060] After the brown suspension is cooled to room temperature, repeat the cleaning-centrifugation-cleaning steps 3-5 times, and vacuum-dry at 30°C for 12 hours to obtain anti-oxidation hybrid particles. The sch...
Embodiment 2
[0064] This embodiment provides an anti-oxidation barium titanate-nickel hybrid particle, which is prepared by the following steps:
[0065] Polyethylene glycol 4000 (PEG-4000) 0.25g and Ni(NO 3 ) 2 ·6H 2 Dissolve 3.5g of O in 100mL of ethylene glycol, stir ultrasonically for 30min, then add 5.0g of BaTiO 3 (100nm), ultrasonically stirred for 30min until the solution turned into a blue-green suspension;
[0066] Transfer the blue suspension to a three-necked flask and put it in an oil bath. The temperature of the oil bath is 160-180°C. After 2 hours of reaction, stop heating and continue stirring for 5 minutes. During the whole process, the protective gas nitrogen is continuously introduced;
[0067] After the dark brown suspension was cooled to room temperature, the steps of washing-centrifugation-washing were repeated 3-5 times, and vacuum-dried at 30° C. for 12 hours to obtain antioxidant hybrid particles.
Embodiment 3
[0069] This example provides a barium titanate-copper hybrid particle / polyvinylidene fluoride composite material, which is prepared by the following steps, and the specific preparation process is as follows: Figure 6 Shown:
[0070] Weigh 0.2g, 0.4g, 0.6g, 0.7g, 0.8g of the anti-oxidation barium titanate-copper hybrid particles in Example 1, and add them to the mixture containing 0.8g, 0.6g, 0.4g, 0.3g, 0.2 g of polyvinylidene fluoride (PVDF) in ethanol solution, ultrasonically stirred for 20 minutes until uniformly dispersed, and the mixed suspension containing different mass fractions of anti-oxidation hybrid particles was placed in a vacuum drying oven for 12 hours;
[0071] Grind the fully dried mixtures with different contents evenly and transfer them to the mold of a hot press machine, heat press at 170°C for 15 minutes and then form them to obtain polymer matrix composites with different filler contents and good mechanical properties.
[0072] Figure 7 The SEM image...
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Abstract
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