Graphene oxide bonding agent and bonding method
A technology of graphene and adhesives, applied in the direction of bonding methods, surface pretreatment bonding methods, adhesives, etc., can solve the problems of corrosion, human body burns, slow drying speed, etc., and achieve a stable bonding interface, Easy to use, good adhesive effect
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Embodiment 1
[0016] The present embodiment has studied the bonding performance of the graphene oxide binder under different concentrations, and its condition is as follows:
[0017] In the graphene oxide solution used, the amount of graphene oxide sheets with a size smaller than 5um is 7±3%, the amount of graphene oxide sheets with a size larger than 30um is 65±4%, and the size of the rest is between 5-30um; The overall C / O ratio is 2.5:1, and single-layer graphene oxide accounts for 81.5% of the total graphene oxide.
[0018] The graphene oxide aqueous solution is prepared according to the concentration of 2-20mg / ml, and it is bonded to two glass slides. The bonding method is as follows: firstly, the glass slides are treated with hydrophilicity, and then the graphene oxide is bonded. The agent is evenly coated between two glass slides, and after it dries, the two glass slides are bonded by graphene oxide.
[0019] The bonding effect at different concentrations is as follows: figure 1 sh...
Embodiment 2
[0021] This embodiment studies the bonding performance of graphene oxide binders with different C / O ratios (1:3, 1:2, 1:1, 2:1, 3:1, 4:1, 5:1) , whose conditions are as follows:
[0022] Among the graphene oxide used, the amount of graphene oxide sheets with a size smaller than 5um is 5±3%, the amount of graphene oxide sheets with a size larger than 30um is 60±5%, and the size of the rest is between 5-30um; Layered graphene oxide accounts for 95.8% of the total graphene oxide. Prepare the graphene oxide aqueous solution according to the concentration of 8mg / ml, and bond it to two glass slides. Covered between two glass slides, after drying, the two glass slides are bonded by graphene oxide.
[0023] By testing the bonding performance of 6 bonded samples, it was found that when the C / O is less than or equal to 3:1, it has a better bonding effect, while the two adhesives with C / O of 4:1 and 5:1 The bonding effect of the knot sample is not good.
Embodiment 3
[0025] The present embodiment has studied the bonding performance of the graphene oxide binder of different size distribution, and its condition is as follows:
[0026] In the graphene oxide used, the size distribution is shown in Table 1; the overall C / O ratio is 2.5:1, and the single-layer graphene oxide content is 91.6%. The graphene oxide aqueous solution is prepared according to the concentration of 4mg / ml, and it is bonded to two glass slides. Covered between two glass slides, after drying, the two glass slides are bonded by graphene oxide.
[0027] The bonding effect under different size distributions is shown in Table 1. It can be seen from the table that the amount of graphene oxide sheets whose size is smaller than 5um should not be more than 10%, and the amount of graphene oxide sheets whose size is larger than 30um should not be less than 60%.
[0028] Table 1
[0029]
PUM
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