Method for preparing nano-copper/epoxy resin composite material
A technology of epoxy resin and composite materials, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of low mechanical properties, poor dispersion, easy agglomeration of nano copper powder, etc. Good performance, improved mechanical properties and dimensional stability
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[0024] Embodiment 1: The present embodiment is a preparation method of nano-copper / epoxy resin composite material, which is completed according to the following steps:
[0025] 1. Preparation of nano-copper powder: ① Using distilled water as solvent at room temperature, the CuSO 4 ·5H 2 O dissolves completely to give CuSO 4 Aqueous solution; ② to the CuSO obtained in step 1 ① 4 Add polyvinylpyrrolidone to the aqueous solution, and sonicate for 30-50min to obtain polyvinylpyrrolidone / CuSO 4 mixed aqueous solution; 3. Mix hydrazine hydrate with distilled water at room temperature to obtain a hydrazine hydrate solution; 4. Use distilled water as a solvent at room temperature to completely dissolve NaOH to obtain a NaOH solution; CuSO 4 The mixed aqueous solution was added to the three-necked round-bottomed flask, then the hydrazine hydrate solution obtained in step 1 (3) was added to the three-necked round-bottomed flask, and the NaOH solution obtained in step 1 (4) was added...
Example Embodiment
[0041] Embodiment 2: The difference between this embodiment and Embodiment 1 is: the CuSO described in step 1 ① 4 ·5H 2 The mass ratio of O to distilled water is (0.15g~0.2g):1mL. Other steps are the same as in the first embodiment.
Example Embodiment
[0042] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the quality of the polyvinylpyrrolidone described in step 1 ② is the same as that of CuSO 4 The volume ratio of the aqueous solution is (0.015g~0.025g):1mL. Other steps are the same as in the first or second embodiment.
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