Temperature-resistant and variable two-component water-based waterproof coating composition, temperature-resistant and variable two-component water-based waterproof coating, preparation method and application thereof
A waterproof coating, two-component technology, used in cement coatings, carboxyl rubber coatings, coatings, etc., can solve the problems of complex preparation process, and achieve good bonding strength, water resistance, and good temperature resistance.
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[0052] According to a preferred embodiment, the preparation method of the rapid hardening agent includes: mixing the amorphous calcium aluminate, the nano-active calcium carbonate and the gypsum I; the mixing I condition is at least Satisfaction: it is carried out under stirring, and the stirring speed is 200-500 rpm, the temperature is 20-40° C., and the time is 15-20 min.
[0053] The amount and type of each component involved in the second aspect of the present invention are the same as the content and type of the corresponding components described in the first aspect of the present invention, and will not be repeated here. Those skilled in the art should not understand that the present invention limits.
[0054] Preferably, in the method for preparing the mixture A, in step (1), the conditions for the first mixing at least meet: under stirring, and the stirring speed is 400-600rpm, and the temperature is 5-35°C , the time is 10-15min.
[0055] Preferably, in the method f...
Embodiment 1
[0095] This example is used to illustrate that the temperature-resistant two-component water-based waterproof coating composition of the present invention is prepared according to the formula and process parameters in Table 1, and the temperature-resistant two-component water-based waterproof coating is prepared as follows.
[0096] The preparation method of described temperature-resistant two-component water-based waterproof coating comprises the following steps:
[0097] Prepare mixture A:
[0098] (1) At room temperature, the carboxylated nitrile latex and the acrylic acid emulsion are first mixed to obtain a mixture I;
[0099] The first mixing condition is: stirring at a speed of 500rpm for 15min;
[0100] (2) At room temperature, the mixture I is mixed with the dispersant, defoamer, preservative, and water contained in component a for the second time to obtain mixture A;
[0101] The second mixing condition is: after stirring for 10 minutes at a rotating speed of 500 r...
Embodiment 2-3
[0110] Embodiment 2-3 adopts the same flow process as embodiment 1 to carry out, and difference is, in the present embodiment:
[0111] The formulations and process parameters of the temperature-resistant two-component water-based waterproof coating compositions used are different, see Table 1 for details.
[0112] The temperature-resistant two-component water-based waterproof coatings T2 and T3 were prepared respectively.
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