Self-healing backwater surface waterproof material capable of stopping open water, preparation method and application thereof
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A waterproof material, backwater technology, used in building insulation materials, water conservancy projects, climate sustainability, etc.
Active Publication Date: 2020-10-27
SUZHOU GUARDEX NEW MATERIAL TECH CO LTD
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Problems solved by technology
In the existing technology, there are few waterproof materials with self-repairing and self-healing effects for cracks caused by poor weather resistance of coating materials, and waterproof materials with quick-setting and water-stopping effects for wet or seepage construction environments.
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Embodiment 1-4
[0055] See Table 1 for specific formulations of backwater waterproof materials that can stop clear water and self-heal.
[0056] Table I
[0057]
[0058] Among them, the sulphoaluminate cement in Examples 1-4 is sulphoaluminate cement 42.5 grade, the ore powder is ultrafine slag powder, silica fume is silicon dioxide ultrafine powder, the rubber powder is acrylic latex powder, fluosilicic acid Magnesium is magnesium hexafluorosilicate powder, early strengthening agent is calcium chloride, water repellent is sodium stearate, polymer emulsion is acrylate copolymer emulsion, defoaming agent is simethicone oil, dispersant is stearamide, The multifunctional additive is AMP-95 multifunctional additive. The antifreeze agent is propylene glycol, the preservative is C15 bactericidal preservative, and the water is deionized water.
[0059] Wherein comparative examples 1~6 are identical with embodiment 3 components, difference is: comparative example 1 is that sulphoaluminate cemen...
Embodiment 5
[0061] The preparation method of Example 5 is the same as that of Example 1, except that the early strengthening agent is calcium formate, and the waterproofing agent is calcium stearate or ammonium stearate.
Embodiment 6
[0063] According to any one of Examples 1-5, each component is weighed according to the formula ratio.
[0064] (1) The powder is weighed according to the formula ratio, and then the sulphoaluminate cement is first added to the powder mixer, and then the mineral powder, quartz sand, sodium silicate, fly ash, waterproofing agent, silica fume , acrylic rubber powder, early strength agent, magnesium fluorosilicate, and then fully stir the mixed powder in the mixer, and finally remove the impurities in the powder mixture through filtration, and the filtered powder can be used to make the water surface waterproof powder of material;
[0065] (2) The liquid material weighs each component according to the formula ratio, and then adds water, defoamer, dispersant, multifunctional auxiliary agent, antifreeze agent, preservative to the reaction kettle in turn, and finally adds polymer propylene milk. The mixed solution is fully stirred evenly in the reaction kettle, and finally the impu...
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Abstract
The invention discloses a self-healing backwater surface waterproof material capable of stopping open water, a preparation method and application thereof. The material comprises the following powder materials by weight: 16-22 parts of sulphoaluminate cement, 8-12 parts of mineral powder, 6-10 parts of fly ash, 40-48 parts of quartz sand, 4-6 parts of sodium silicate, 0.5-1 part of a waterproof agent, 4-8 parts of silica fume, 4-6 parts of rubber powder, 0.25-0.4 part of an early strength agent and 0.3-0.8 part of magnesium fluosilicate; and the liquid materials: 20-26 parts of a polymer emulsion, 0.1-0.2 part of an antifoaming agent, 0.05-0.15 part of a dispersant, 0.05-0.1 part of a multifunctional auxiliary agent, 0.06-0.12 part of an antiseptic, 0.08-0.14 part of an anti-freezing agentand 20-26 parts of water. The material disclosed by the invention is good in durability, impermeable, anti-cracking and anti-freezing; and the waterproof material is simple and convenient to manufacture and convenient to construct, has self-repairing and self-healing effects when leakage occurs again, and achieves an efficient and long-lasting waterproof effect.
Description
technical field [0001] The invention relates to a waterproof material for construction, in particular to a backwater surface waterproof material capable of stopping open water and self-healing, and a preparation method and application thereof. Background technique [0002] At present, domestic and foreign scholars' research on polymer cement-based coatings mainly focuses on the improvement of coating formulations and the modification of polymer emulsions. Polymer emulsion is the base material of the coating, which has an important influence on the performance of the coating. At present, polyacrylate emulsion and vinyl acetate-ethylene copolymer emulsion (VAE) are widely used. VAE emulsion is a linear polymer material with high tensile strength and good alkali resistance, but its molecular polarity is large, and its heat aging resistance is poor. After heating, the coating film tends to become brittle and hard. Polyacrylate emulsion is mainly composed of acrylates, methacryl...
Claims
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