Nitrogen-doped graphene modified graphite puree and preparation method thereof
A graphene modification and graphene technology, which is applied in the direction of cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, electrical components, etc., can solve the problem of further improvement of electrical conductivity and poor conductivity of coating thickness advanced questions
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preparation example 1
[0018] Preparation of nitrogen-doped graphene: 150g of urea (analytical pure) was added to 100mL of graphene oxide solution, fully stirred and mixed; air-dried at 40°C for 10h to obtain a mixed powder; then the mixed powder was calcined to obtain the Nitrogen doped graphene. Wherein, the steps of calcination used are: starting from 20°C to 800°C and maintaining at 800°C for 1 hour, wherein the heating rate is 5°C / min; then cooling down to 30°C at a cooling rate of 10°C / min; wherein, the The calcination atmosphere is N2, and the flow rate of N2 is 0.001m3 / h.
preparation example 2
[0020] Preparation of nitrogen-doped graphene: Add 200g of urea (analytical pure) to 100mL of graphene oxide solution, stir and mix thoroughly; blow dry at 60°C for 6h to obtain mixed powder; then calcinate the mixed powder to obtain the Nitrogen doped graphene. Wherein, the steps of calcination used are: starting from 20°C to 800°C and maintaining at 800°C for 1 hour, wherein the heating rate is 5°C / min; then cooling down to 30°C at a cooling rate of 10°C / min; wherein, the The calcination atmosphere is N2, and the flow rate of N2 is 0.001m3 / h.
Embodiment 1
[0022] Nitrogen-doped graphene, conductive graphite, polypropylene resin (with a weight average molecular weight of 10,000), glass powder, zinc powder, terpineol, ethyl cellulose and polyvinylpyrrolidone in a weight ratio of 10:100: 25:1:1:30:1:1 Stirring for 2 hours at a rotational speed of 2000rpm to obtain nitrogen-doped graphene modified graphite puree A1;
[0023] Wherein, the added nitrogen-doped graphene is prepared from Preparation Example 1.
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