CN104387003A - Interface waterproofing mortar and preparation method thereof - Google Patents

Abstract

The invention discloses interface waterproofing mortar. The interface waterproofing mortar is prepared from the following raw materials in parts by weight: 13-16 parts of mica powder, 14-18 parts of calcium carbonate powder, 6-8 parts of beta-hemihydrate gypsum, 3-4 parts of monopotassium phosphate, 0.7-1.2 parts of butyl naphthalene sulfonate, 0.3-0.4 part of polyvinylpyrrolidone, 0.6-0.9 part of hydroxystearic acid, 7-9 parts of hydrophobic type dispersible adhesive powder, 200-240 parts of cement, 200-230 parts of river sand, 1-1.4 parts of methyl cellulose ether MC, a proper amount of water and 20-25 parts of additives. The interface waterproofing mortar is high in strength, excellent in waterproof performance, high in tenacity, high in weathering resistance, is unshrinkable during hardening and aging-resistant, and is applied to places such as concrete surface treatment agents and adhesive tiles; by virtue of the application of the adhesive, the compressive strength and flexural strength of the mortar are improved; the workability, anti-sagging property, thixotropy and anti-settling property are improved.

Description

A kind of interface waterproof mortar and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of interface waterproof mortar and preparation method thereof.

Background technology

Mortar is common material for building, belongs to the indispensable material in building operation.Divide according to performance, mortar is divided into a variety of, has in conjunction with mortar, filleting mortar, thermal insulation mortar etc.; Masonry mortar, plastering mortar (comprising decoration mortar, waterproof mortar), adhesive mortar etc. are divided into by purposes.

The performance quality of current mortar differs, and affects use.Specifically the factor affecting mortar performance comprises the workability of fresh mortar, mobility, water-retentivity, is exactly the intensity of hardened mortar in addition.Need to study new mortar, make it have excellent application property and processibility, sag resistance, thixotropy, anti-settling, package stability, improve pumping and shear-thinning, also need to find new material, to improve its use properties and intensity, and reduce comprehensive cost.

Summary of the invention

The object of the present invention is to provide a kind of interface waterproof mortar and preparation method thereof, this mortar bonding strength is large, and good waterproof performance, does not shrink during sclerosis, good toughness, and good weatherability is ageing-resistant.

Technical scheme of the present invention is as follows:

A kind of interface waterproof mortar, is characterized in that being made up of the raw material of following weight part: mica powder 13-16, Paris white 14-18, β-semi-hydrated gypsum 6-8, potassium primary phosphate 3-4, sodium butylnaphthalenesulfonate 0.7-1.2, polyvinylpyrrolidone 0.3-0.4, oxystearic acid 0.6-0.9, hydrophobic type re-dispersible glue powder 7-9, cement 200-240, river sand 200-230, methyl cellulose ether MC 1-1.4, water are appropriate, auxiliary agent 20-25;

Described auxiliary agent is made up of the raw material of following weight part: kaolin 2-3, 20-25% sodium hydroxide solution 4-5, Nanoscale Iron 1-2, carbon fiber 6-7, redispersible latex powder 2-3, cyanoethyl cellulose 0.4-0.5, dicyclopentadiene acrylate 2-3, methacrylic ester 2-3, potassium silicate 1-2, magnesium borate crystal whisker 1-2, triglycidyl isocyanurate 2-3, bisphenol A epoxide resin 4-5, magnesium oxide 4-5, Oleum Folium Artemisiae Argyi 0.4-0.5, pungent capric acid 0.8-1.2, calcium aluminate 1-1.6, Sodium dodecylbenzene sulfonate 0.2-0.3, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 16-20, preparation method is: kaolin is put into calcining furnace, at 670-700 DEG C, calcine 3-4 hour, takes out, puts into 20-25% sodium hydroxide solution and be ground to 20-40 μm of slurry, and material pH value of sizing mixing is for neutral, and spraying dry obtains powder, water, Sodium dodecylbenzene sulfonate, dicyclopentadiene acrylate, methacrylic ester, potassium silicate, triglycidyl isocyanurate, bisphenol A epoxide resin, the mixing of pungent capric acid, be heated to 70-80 DEG C, add Potassium Persulphate stirring reaction 20-30 minute, add described powder and other remaining components again, be heated to 80-90 DEG C, stirring reaction 30-40 minute, to obtain final product.

The preparation method of described interface waterproof mortar, is characterized in that comprising the following steps:

(1) by mica powder, oxystearic acid, the mixing of hydrophobic type re-dispersible glue powder, 140-180 order particle is ground into;

(2) by potassium primary phosphate, sodium butylnaphthalenesulfonate, polyvinylpyrrolidone, the mixing of methyl cellulose ether MC water, stir and obtain slurry;

(3) by auxiliary agent, β-semi-hydrated gypsum, Paris white mixing, dispersion grinding 20-30 minute, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step obtained is even, and stirring reaction 10-15 minute, to obtain final product.

Beneficial effect of the present invention

Mortar bonding strength of the present invention is large, and good waterproof performance, does not shrink during sclerosis, good toughness, and good weatherability is ageing-resistant; Be applicable to the places such as concrete surface treatment agent, sticking brick; The application of the invention auxiliary agent, improves the resistance to compression of mortar, folding strength, improves workability, sag resistance, thixotropy and anti-settling.

Embodiment

A kind of interface waterproof mortar, is made up of the raw material of following weight part (kilogram): mica powder 14, Paris white 17, β-semi-hydrated gypsum 7, potassium primary phosphate 3.5, sodium butylnaphthalenesulfonate 1, polyvinylpyrrolidone 0.3, oxystearic acid 0.7, hydrophobic type re-dispersible glue powder 8, cement 220, river sand 220, methyl cellulose ether MC 1.2, water are appropriate, auxiliary agent 23;

Described auxiliary agent is made up of the raw material of following weight part (kilogram): kaolin 2.5, 20% sodium hydroxide solution 4.5, Nanoscale Iron 1.5, carbon fiber 6.5, redispersible latex powder 2.5, cyanoethyl cellulose 0.5, dicyclopentadiene acrylate 2.5, methacrylic ester 2.5, potassium silicate 1.5, magnesium borate crystal whisker 1.5, triglycidyl isocyanurate 2.5, bisphenol A epoxide resin 4.5, magnesium oxide 4.5, Oleum Folium Artemisiae Argyi 0.5, pungent capric acid 1, calcium aluminate 1.3, Sodium dodecylbenzene sulfonate 0.2, ammonium persulphate 0.1, Potassium Persulphate 0.1, water 18, preparation method is: kaolin is put into calcining furnace, calcines 3.5 hours at 690 DEG C, takes out, puts into 20% sodium hydroxide solution and be ground to 30 μm of slurries, and material pH value of sizing mixing is for neutral, and spraying dry obtains powder, water, Sodium dodecylbenzene sulfonate, dicyclopentadiene acrylate, methacrylic ester, potassium silicate, triglycidyl isocyanurate, bisphenol A epoxide resin, the mixing of pungent capric acid, be heated to 75 DEG C, add Potassium Persulphate stirring reaction 25 minutes, add described powder and other remaining components again, be heated to 85 DEG C, stirring reaction 35 minutes, to obtain final product.

The preparation method of described interface waterproof mortar, comprises the following steps:

(1) by mica powder, oxystearic acid, the mixing of hydrophobic type re-dispersible glue powder, 170 order particles are ground into;

(2) by potassium primary phosphate, sodium butylnaphthalenesulfonate, polyvinylpyrrolidone, the mixing of methyl cellulose ether MC water, stir and obtain slurry;

(3) by auxiliary agent, β-semi-hydrated gypsum, Paris white mixing, dispersion grinding 25 minutes, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step obtained is even, and stirring reaction 13 minutes, to obtain final product.

Experimental data:

The ultimate compression strength of the mortar 28d of this embodiment is 46MPa, folding strength 16MPa, water-intake rate 1.7%.

Claims (2)

1. an interface waterproof mortar, is characterized in that being made up of the raw material of following weight part: mica powder 13-16, Paris white 14-18, β-semi-hydrated gypsum 6-8, potassium primary phosphate 3-4, sodium butylnaphthalenesulfonate 0.7-1.2, polyvinylpyrrolidone 0.3-0.4, oxystearic acid 0.6-0.9, hydrophobic type re-dispersible glue powder 7-9, cement 200-240, river sand 200-230, methyl cellulose ether MC 1-1.4, water are appropriate, auxiliary agent 20-25;

Described auxiliary agent is made up of the raw material of following weight part: kaolin 2-3, 20-25% sodium hydroxide solution 4-5, Nanoscale Iron 1-2, carbon fiber 6-7, redispersible latex powder 2-3, cyanoethyl cellulose 0.4-0.5, dicyclopentadiene acrylate 2-3, methacrylic ester 2-3, potassium silicate 1-2, magnesium borate crystal whisker 1-2, triglycidyl isocyanurate 2-3, bisphenol A epoxide resin 4-5, magnesium oxide 4-5, Oleum Folium Artemisiae Argyi 0.4-0.5, pungent capric acid 0.8-1.2, calcium aluminate 1-1.6, Sodium dodecylbenzene sulfonate 0.2-0.3, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 16-20, preparation method is: kaolin is put into calcining furnace, at 670-700 DEG C, calcine 3-4 hour, takes out, puts into 20-25% sodium hydroxide solution and be ground to 20-40 μm of slurry, and material pH value of sizing mixing is for neutral, and spraying dry obtains powder, water, Sodium dodecylbenzene sulfonate, dicyclopentadiene acrylate, methacrylic ester, potassium silicate, triglycidyl isocyanurate, bisphenol A epoxide resin, the mixing of pungent capric acid, be heated to 70-80 DEG C, add Potassium Persulphate stirring reaction 20-30 minute, add described powder and other remaining components again, be heated to 80-90 DEG C, stirring reaction 30-40 minute, to obtain final product.

2. the preparation method of interface according to claim 1 waterproof mortar, is characterized in that comprising the following steps:

(1) by mica powder, oxystearic acid, the mixing of hydrophobic type re-dispersible glue powder, 140-180 order particle is ground into;

(2) by potassium primary phosphate, sodium butylnaphthalenesulfonate, polyvinylpyrrolidone, the mixing of methyl cellulose ether MC water, stir and obtain slurry;

(3) by auxiliary agent, β-semi-hydrated gypsum, Paris white mixing, dispersion grinding 20-30 minute, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step obtained is even, and stirring reaction 10-15 minute, to obtain final product.