CN104529267A - Calking mortar and preparation method thereof - Google Patents

Abstract

A calking mortar is prepared from the following raw materials, by weight, 10-14 parts of dispersible latex powder, 2-4 parts of sodium hexametaphosphate, 60-70 parts of meerschaum, 5-8 parts of lignocellulose, 30-40 parts of Chinese medical stone, 2-3 parts of expanded corn starch, 1-2 parts of sodium tripolyphosphate, 2-2.5 parts of polyisobutylene, 3-4 parts of polyethylene glycol, 140-160 parts of cement, 140-160 parts of yellow sand, 30-40 parts of ore powder, a proper amount of water and 20-25 parts of an assistant. The mortar has the advantages of improved cohesiveness, fluidity and thixotropy, easy calking, high bonding strength and compressive strength, good water resistance and cracking resistance; and the assistant used in the invention increases the compressive strength and the flexural strength, and improves the workability, the sagging resistance, the thixotropy and the settlement resistance of the mortar.

Description

A kind of filleting mortar and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of filleting 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 filleting mortar and preparation method thereof, the cohesiveness of this mortar, mobility, thixotropy improve, and filleting is easy, and cohesive strength, ultimate compression strength are high, water-tolerant, cracking resistance.

Technical scheme of the present invention is as follows:

A kind of filleting mortar, is characterized in that being made up of the raw material of following weight part: polymer dispersion powder 10-14, Sodium hexametaphosphate 99 2-4, sepiolite 60-70, lignocellulose 5-8, medical stone 30-40, expanded corn starch 2-3, tripoly phosphate sodium STPP 1-2, polyisobutene 2-2.5, polyoxyethylene glycol 3-4, cement 140-160, yellow sand 140-160, breeze 30-40, 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 filleting mortar, is characterized in that comprising the following steps:

(1) by sepiolite, medical stone mixing, 140-180 order particle is ground into;

(2) by Sodium hexametaphosphate 99, lignocellulose, expanded corn starch, tripoly phosphate sodium STPP, polyoxyethylene glycol, water mixing, stir and obtain slurry;

(3) by auxiliary agent, polymer dispersion powder, polyisobutene, breeze 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

The cohesiveness of mortar of the present invention, mobility, thixotropy improve, and filleting is easy, and cohesive strength, ultimate compression strength are high, water-tolerant, cracking resistance; 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 filleting mortar, is made up of the raw material of following weight part (kilogram): polymer dispersion powder 13, Sodium hexametaphosphate 99 3, sepiolite 65, lignocellulose 7, medical stone 35, expanded corn starch 2.5, tripoly phosphate sodium STPP 1.5, polyisobutene 2.3, polyoxyethylene glycol 3.5, cement 150, yellow sand 150, breeze 35, 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 filleting mortar, comprises the following steps:

(1) by sepiolite, medical stone mixing, 160 order particles are ground into;

(2) by Sodium hexametaphosphate 99, lignocellulose, expanded corn starch, tripoly phosphate sodium STPP, polyoxyethylene glycol, water mixing, stir and obtain slurry;

(3) by auxiliary agent, polymer dispersion powder, polyisobutene, breeze 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 14 minutes, to obtain final product.

Experimental data:

The ultimate compression strength of the mortar 28d of this embodiment is 38MPa, folding strength 15MPa, water-intake rate 1.6%.

Claims (2)

1. a filleting mortar, is characterized in that being made up of the raw material of following weight part: polymer dispersion powder 10-14, Sodium hexametaphosphate 99 2-4, sepiolite 60-70, lignocellulose 5-8, medical stone 30-40, expanded corn starch 2-3, tripoly phosphate sodium STPP 1-2, polyisobutene 2-2.5, polyoxyethylene glycol 3-4, cement 140-160, yellow sand 140-160, breeze 30-40, 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 filleting mortar according to claim 1, is characterized in that comprising the following steps:

(1) by sepiolite, medical stone mixing, 140-180 order particle is ground into;

(2) by Sodium hexametaphosphate 99, lignocellulose, expanded corn starch, tripoly phosphate sodium STPP, polyoxyethylene glycol, water mixing, stir and obtain slurry;

(3) by auxiliary agent, polymer dispersion powder, polyisobutene, breeze 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.