Stabilized sparse metal conductive films and solutions for delivery of stabilizing compounds
A metal conductive layer, sparse technology, applied to the conductive layer on the insulating carrier, conductive materials dispersed in non-conductive inorganic materials, conductive coatings, etc., can solve problems such as cracking of flexible substrates
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[0086]The following examples use a single ink comprising a solvent as well as a stable dispersion of silver nanowires, a polymeric binder, and a molten solution. The silver nanowire ink is essentially as in U.S. Patent 9,150,746 B1 to Li et al., entitled "Metal Nanowire Inks for the Formation of Transparent Conductive Films With Fused Networks." Described in Example 5, which patent is incorporated herein by reference. AgNWs are typically present in the ink at a level of 0.06 wt% to 1.0 wt%, and the binder is about 0.01 wt% to 1 wt%. The ink is coated on PET polyester film by slot coating. After the nanowire ink was applied, the film was then heated in a 120°C oven for 2 minutes to dry the film. The stabilizing compound coating composition was similarly slot-coated on the molten metal nanostructure layer. Unless otherwise stated, the concentration of the stabilizing compound is about 0.01 wt% to 0.03 wt% in the solution and 1.0 wt% to 3.5 wt% in the coating. The film is the...
example 1
[0095] Example 1— Transparent Conductive Films with Topcoats Containing Stabilized Compositions Containing Vanadium Oxide Tripropoxide (LS-1)
[0096] This example demonstrates the effectiveness of stabilizing compound LS-1 placed in the top coat.
[0097] A set of samples was prepared according to Test Configuration A, with LS-1 stabilizer in commercial coating solution OC-1. The concentration of the stabilizing compound in the top coat was 3% by weight relative to the solids in the layer. For light irradiation stability, the test results of LS-1 are as follows Figure 5 shown. The results proved that the stability was excellent under the test conditions, greater than 2000 hours.
example 2
[0098] Example 2— Topcoat in Construction B with Stabilizing Compositions Containing Various Levels of Vanadium Oxytripropoxide (LS-1) transparent conductive film
[0099] This example demonstrates the effectiveness of stabilizing compound LS-1 placed in the top coat as well as in Laminate Construction B.
[0100] A set of samples was prepared according to Test Configuration B, containing three different levels of LS-1 stabilizer in commercial coating solution OC-1. The concentration of the stabilizing compound in the top coat was 2 wt%, 3 wt% and 5 wt% relative to the solids in the layer. The test results of Xe light irradiation stability are as follows: Image 6 shown. The results show that under the test conditions, the stability is excellent in Xe light irradiation stability, which is greater than 1700 hours.
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