Anti-seepage coating layer with heavy metal chelating function as well as composition and application thereof
An anti-seepage coating and heavy metal technology, applied in the field of environmental governance, can solve the problems of heavy metal pollution in groundwater, uplift and rupture of anti-seepage membrane, etc., and achieve the effect of increasing mechanical strength, high efficiency and lasting effect, and low cost
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[0040] Such as figure 1 As shown, the preparation method of the anti-seepage coating with heavy metal chelating function provided by the embodiments of the present invention comprises the following steps:
[0041] S101: through active siloxane, long-chain alkyl derivatives and polyamine structure compounds, all undergo ring-opening reactions with polyepoxy main chain molecules or epoxy rings of polyepoxy polymers;
[0042] S102: The polyether-modified siloxane chain Rn, long-chain alkyl Rn f and the polyamine structure R m Introduced into the polymer chain, multi-epoxy main chain: polyether modified siloxane chain R n : long chain alkyl R f : polyamine chain R m The ratio is 5-50:1-10:1-10:1-10.
[0043] The present invention also provides an anti-seepage coating composition with a heavy metal chelating function. The above-mentioned anti-seepage layer is used in conjunction with micro-nano particles, vinyl silicone oil, hydrogen-containing silicone oil and a catalyst to for...
Embodiment 1
[0059] The anti-seepage coating with heavy metal chelating function provided by the embodiments of the present invention has the following structural characteristics:
[0060]
[0061] Wherein, x, y, z, g are all integers of 10-500;
[0062] R n is aminosiloxane;
[0063] R f is hexyl hydroxyl alcohol;
[0064] R m is ethylenediamine;
[0065] The preparation method of the anti-seepage coating in the embodiment of the present invention is as follows: double-part A epoxy resin 828, aminosiloxane, hexyl hydroxyl alcohol, and ethylenediamine are stirred and mixed evenly in a molar ratio of 50:10:10:10. It is the anti-seepage layer with heavy metal chelating function.
[0066] The preparation method of the anti-seepage coating composition of the embodiment of the present invention is: anti-seepage coating, vinyl silicone oil, methyl silicone resin, diatomaceous earth, hydrogen-containing silicone oil, reaction inhibitor: chloroplatinic acid, in a molar ratio of 5: 10: 5:...
Embodiment 2
[0070] The anti-seepage coating with heavy metal chelating function provided by the embodiments of the present invention has the following structural features:
[0071]
[0072] Wherein, x, y, z, g are all integers of 10-500;
[0073] R n is hydroxysiloxane;
[0074] R f is dodecyl hydroxy alcohol;
[0075] R m is diethylenetriamine;
[0076] The preparation method of the anti-seepage coating in the embodiment of the present invention is: trimethylolpropane triglycidyl ether, hydroxysiloxane, dodecyl hydroxyl alcohol, diethylenetriamine, and the molar ratio is 5:2:3:1 Mix and stir evenly to obtain the anti-seepage coating composition. .
[0077] The preparation method of the anti-seepage coating composition of the embodiment of the present invention is: the anti-seepage coating, vinyl silicone oil, phenyl silicone resin, sepiolite, hydrogen-containing silicone oil, reaction inhibitor, and castor catalyst are mixed in a molar ratio Mix at 50:30:10:10:5:1:1 and grind ...
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