Method of imparting corrosion resistance to a multi-layer window film having a metal layer
A technology of corrosion resistance and metal layer, applied in the direction of chemical instruments and methods, coatings, layered products, etc., can solve the problems of reducing the conductivity of the metal layer, increasing the cost of the window film, changing the appearance and light transmittance of the window film, etc. Achieves the effect of increasing service life, improving corrosion resistance, and inexpensive method
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example 1
[0043] Will figure 2 Window films similar to those shown and described in were mounted on 1 / 8 inch thick glass substrates. A small portion of the glass plate was immersed in a 0.05% by weight ethylene glycol dimercaptoacetate solution in ethyl acetate for 30 minutes. Then, rinse the treated edges with running deionized water. The samples were placed in a salt spray chamber maintained and operated in accordance with ASTM G85-02. After 3 days, the samples were removed from the salt spray chamber and inspected for signs of edge corrosion. The treated edges were found to show significantly less erosion compared to untreated edges. It was observed that the uncorroded edges extended beyond the line contacted with the resist solution. This is attributed to the wicking effect.
example 2
[0045] Five resist materials were tested in lightening and figure 2 Effectiveness in terms of edge corrosion for similar window films shown and described. The resist materials are as follows: 1-octadecanethiol (ODT), trimethylolpropane tris(3-mercaptopropionate) (TMP), 5-methyl-1H-benzotriazole (MBT), four (3-mercaptopropionic acid) pentaerythritol ester (PTT) and glycol dimercaptoacetate (GDA). These five materials were dissolved in ethyl acetate at 0.001 wt%, 0.01 wt%, 0.05 wt%, and 0.1 wt%. cut window film 1 / 4 "×6 1 / 2 " strips and soaked them in the above solution for 5 minutes, 15 minutes and 30 minutes. The treated strips were mounted on a 1 / 8" thick glass plate along with untreated strips of the same size. The glass plates were placed in a salt spray chamber and maintained according to ASTM G85-02. Samples were left in the salt spray chamber for 24 hours (unless specifically stated otherwise). Then, remove the sample and record the % of corroded edge length....
example 3
[0049] Pastes of CARBOPOL EZ-1 neutralized with triethanolamine containing 0.01 wt%, 0.1 wt% and 1 wt% GDA were prepared and applied to glass-mounted figure 2 shown on the edge of the window film. Let the paste dry overnight, then rinse off with water. The samples were then placed in a salt spray chamber for 24 hours according to ASTM G85-02, and the degree of corrosion was measured. For the 0.01% and 0.1% GDA concentration levels, the improvement in corrosion resistance was evident, but not as dramatic as expected. The paste containing 1% GDA did not appear to change the length of the corrosion edge compared to the control without any GDA, but the corrosion intrusion was less in the samples treated with the GDA containing paste. The results are shown below in terms of corroded area for comparison.
[0050] Sample corrosion area (mm 2 )
[0051] Pastes without GDA 213
[0052] Paste containing 1% GDA 26
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