Preparation method of anti-freezing waterproof adhesive for building

A building waterproof and adhesive technology, which is applied in the direction of adhesive type, polymer adhesive additive, non-polymer adhesive additive, etc., can solve the problem of poor waterproof performance, no adhesion of adhesive, The preparation method is complicated and other problems, and the effect of improving the application range and area, excellent waterproof performance and simple preparation method is achieved.

CN108977127AInactive Publication Date: 2018-12-11FOSHAN ELITE INTPROP SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-12-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of an anti-freezing waterproof adhesive for a building. The method comprises the steps: adding water into a reaction kettle, heating the reaction kettle to70-80 DEG C, and starting reflux condensation; adding polyvinyl alcohol into the reaction kettle, and starting a stirrer until completely dissolving polyvinyl alcohol; adding a vinyl acetate copolymer emulsion, polyvinyl alcohol and methyl acrylate into the reaction kettle, carrying out stirring, adding a dispersant, an emulsifying agent and a defoaming agent, and carrying out uniform stirring; adding an initiator, and carrying out heat insulation; and cooling the reaction kettle to the room temperature, adding a film forming additive into the reaction kettle, and carrying out uniform stirring to obtain the anti-freezing waterproof adhesive for the building. The prepared adhesive has the advantages of relatively good joint filling property as well as water leakage and seepage prevention when being applied to the building; in particular, the adhesive can still keep a relatively good characteristic in a low-temperature environment; the preparation method is relatively simple and wild inreaction condition; and the raw materials are available and low in price, so that the cost of the adhesive is greatly reduced.
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Description

technical field

[0001] The invention relates to the technical field of adhesives, in particular to a preparation method of antifreeze building waterproof adhesives. Background technique

[0002] With the passage of time, the building houses will age accordingly, and the life span of ordinary reinforced concrete buildings is only a few decades. The aging of buildings will bring a series of hidden dangers to human safety and property safety. These include the breeding of insects and ants, especially on the roof, and there may be water leakage and seepage.

[0003] The adhesive prepared by the existing preparation method is used for building joints, but the waterproof performance of its joints is not ideal, and because this construction adhesive is generally used outdoors, in high temperature environments, the adhesive Fortunately, it can achieve seam filling and waterproofing, but once it is still exposed to low temperature environments, the existing adhesives will become no...

Examples

Embodiment 1

[0035] Freeze-resistant building waterproof adhesive, its raw material components in parts by mass are:

[0036]

[0037] Its preparation method is:

[0038] Weighing component quantities of vinyl acetate copolymer emulsion, polyvinyl alcohol, methyl acrylate, potassium persulfate, polytetrafluoroethylene, propylene glycol butyl ether, emulsified silicone oil, soap and deionized water;

[0039] Add deionized water into the reaction kettle, and heat the reaction kettle at a rate of 3°C / min, raise the temperature to 80°C, and turn on reflux condensation;

[0040] Add polyvinyl alcohol to the reaction kettle, turn on the stirrer, and the stirring speed is 180r / min, until it is completely dissolved;

[0041] Add vinyl acetate copolymer emulsion, polyvinyl alcohol and methyl acrylate to the reaction kettle, adjust the stirring speed to 450r / min, after stirring for 4 minutes, add polytetrafluoroethylene, soap and emulsified silicone oil, and stir evenly;

[0042] Add potassium ...

Embodiment 2

[0046] Freeze-resistant building waterproof adhesive, its raw material components in parts by mass are:

[0047]

[0048] Its preparation method is:

[0049] Weigh the components of vinyl acetate copolymer emulsion, polyvinyl alcohol, methyl acrylate, sodium persulfate, hexenyl bis stearamide, propylene glycol methyl ether acetate, higher alcohol fatty acid ester complex, gum arabic and deionized water;

[0050] Add deionized water into the reaction kettle, and heat the reaction kettle at a rate of 4°C / min, raise the temperature to 77°C, and turn on reflux condensation;

[0051] Add polyvinyl alcohol to the reaction kettle, turn on the stirrer, and the stirring speed is 210r / min, until it is completely dissolved;

[0052] Add vinyl acetate copolymer emulsion, polyvinyl alcohol and methyl acrylate to the reaction kettle, adjust the stirring speed to 430r / min, after stirring for 7 minutes, add hexenyl bis stearamide, gum arabic and higher alcohol fatty acid ester compound,...

Embodiment 3

[0057] Freeze-resistant building waterproof adhesive, its raw material components in parts by mass are:

[0058]

[0059] Its preparation method is:

[0060] Vinyl acetate copolymer emulsion, polyvinyl alcohol, methyl acrylate, ammonium persulfate, hexenyl bis stearamide, propylene glycol butyl ether, polyoxyethylene polyoxypropylene pentaerythritol ether, sodium alkylbenzene sulfonate and Deionized water;

[0061] Add deionized water into the reaction kettle, and heat the reaction kettle at a rate of 6°C / min, raise the temperature to 70°C, and turn on reflux condensation;

[0062] Add polyvinyl alcohol to the reaction kettle, turn on the stirrer, and the stirring speed is 300r / min, until it is completely dissolved;

[0063] Add vinyl acetate copolymer emulsion, polyvinyl alcohol and methyl acrylate to the reaction kettle, adjust the stirring speed to 320r / min, and after stirring for 8 minutes, add hexenylbisstearamide, sodium alkylbenzenesulfonate and polyoxygen Ethylen...