A kind of flexible conductive adhesive used for direct coating and preparation method thereof
A flexible conductive and coating technology, which is applied in the direction of conductive adhesives, adhesives, epoxy resin glue, etc., can solve the problems of easily damaged conductive paths, reduced conductive performance, and inability to meet the needs of flexible conductive connections. The effect of easy cracking, excellent electrical conductivity, and good flexibility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] 1) First weigh the following components:
[0037]
[0038] 2) Fully mix TKM-828, DER732, methylhexahydrophthalic anhydride, 2-ethyl-4-methylimidazole, and KH560 weighed in 1) to obtain a matrix;
[0039] 3) Add the ethanol solution of silver nanowires to the matrix of 2), mix well, and vacuumize for 24 hours to remove ethanol; then add the flake silver powder SF-0340 weighed in 1), mix well, Get a flexible conductive adhesive for direct coating use.
[0040] The silver nanowire ethanol solution used in this embodiment has a length of 15-60 μm, a diameter of 150-350 nm, and a concentration of 0.05 g / ml.
[0041] The flexible conductive adhesive of this embodiment is cured for 2 hours at 150°C, and the resistivity is 6.65×10 -5 Ω·cm, excellent electrical conductivity; and, if figure 1 As shown, the bending resistance of the flexible conductive adhesive is much better than that of the conductive adhesive prepared with ordinary epoxy as the matrix and flake silver pow...
Embodiment 2
[0043] 1) First weigh the following components:
[0044]
[0045] 2) Fully mix the TKM-828, DER732, methyltetrahydrophthalic anhydride, Ni-imidazole complex, and KH550 weighed in 1) to obtain a matrix;
[0046] 3) Add the ethanol solution of copper nanowires to the matrix of 2), mix well, and vacuumize for 24 hours to remove ethanol; then add the flake silver powder SF-0340 weighed in 1), mix well, Get a flexible conductive adhesive for direct coating use.
[0047] The ethanol solution of copper nanowires used in this embodiment has a length of 0.8-6 μm, a diameter of 100-200 nm, and a concentration of 0.2 g / ml.
[0048] The flexible conductive adhesive of this embodiment is cured for 2 hours at 150°C, and the resistivity is 8.56×10 -5 Ω·cm, excellent electrical conductivity; and, if figure 1 As shown, the bending resistance of the flexible conductive adhesive is much better than that of the conductive adhesive prepared with ordinary epoxy as the matrix and flake silver ...
Embodiment 3
[0050] 1) First weigh the following components:
[0051]
[0052] 2) TKM-828, DER732, methyl hexahydrophthalic anhydride, methyl tetrahydrophthalic anhydride, 2-ethyl-4-methylimidazole, 2-ethyl Mix imidazole and KH570 thoroughly to obtain a matrix;
[0053] 3) Add the ethanol solution of gold nanowires to the matrix of 2), mix well, and vacuumize for 24 hours to remove ethanol; then add the flaky silver powder SF-0340 weighed in 1), mix well, Get a flexible conductive adhesive for direct coating use.
[0054] The ethanol solution of gold nanowires used in this embodiment has a length of 3-6 μm, a diameter of 20-50 nm, and a concentration of 0.1 g / ml.
[0055] The flexible conductive adhesive of this embodiment is cured for 2 hours at 150°C, and the resistivity is 7.83×10 -5 Ω·cm, excellent electrical conductivity; and, if figure 2 As shown, the bending resistance of the flexible conductive adhesive is much better than that of the conductive adhesive prepared with ordin...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| concentration | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More