CN104263029A - Anti-cracking and waterproof coating for wall body - Google Patents

Abstract

The invention discloses an anti-cracking and waterproof coating for a wall body. The anti-cracking and waterproof coating comprises the following raw materials in parts by weight: 1-2 parts of N-ethyl-o/p-toluene sulfonamide, 2-4 parts of conch shell powder, 2-3 parts of calcium aluminate, 0.5-1 part of decanedihydrazide, 0.6-1 part of sodium hexametaphosphate, 1-3 parts of methyl-2, 2-dithienyl glycolate, 2-4 parts of dibutyl maleate, 2-3 parts of triethylene glycol, 10-13 parts of heavy calcium carbonate, 120-150 parts of ethyl acrylate, 140-200 parts of vinyl acetate, 0.7-2 parts of ammonium persulfate, 500-700 parts of deionized water, 0.5-1 part of ammonium sulfite, 2-3 parts of sodium dodecyl diphenyl ether disulfonate and 4-5 parts of bonding additives. The coating disclosed by the invention has the advantages of excellent adhesion performance with a base layer, good construction performance, rigid paint film, strong impact resistance, effect of being less prone to cracking, strong impermeability, good water resistance and soft texture.

Description

A kind of body of wall anticracking waterproof coating

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Technical field

The present invention relates generally to paint field, particularly relates to a kind of body of wall anticracking waterproof coating.

Background technology

Be applied to body surface can be formed there is protection, the class I liquid I of solid-state film of decoration or property (as insulation, anticorrosion, mark etc.) or the general name of solid material, comprise oil (property) paint, water-miscible paint, powder coating.Paint is flowable liquid coating, comprises oil (property) paint and water-miscible paint.Paint take organic solvent as medium or high solid, solvent-free oil-base paint.Water-miscible paint is used water dissolving or the coating with water-dispersion.Coating is as one of the main material of house decoration, and the large percentage accounted in decorations, buys the whether qualified environment directly having influence on overall finishing effect and room of coating, sometimes even can produce harm greatly to the health of human body.At present along with the generation of various coating, the quality requirements of coating is also improved constantly, and improve constantly coating quality and can play very large help for building, life.

Summary of the invention

The object of the invention is just to provide a kind of body of wall anticracking waterproof coating.

The present invention is achieved by the following technical solutions:

A kind of body of wall anticracking waterproof coating, is characterized in that what it was made up of the raw material of following weight parts:

N-ethyl-adjacency pair toluol sulfonamide 1-2, Concha rapanae thomasianae powder 2-4, calcium aluminate 2-3, sebacic dihydrazide 0.5-1, Sodium hexametaphosphate 99 0.6-1,2,2-dithienyl methyl glycolate 1-3, dibutyl maleate 2-4, triglycol 2-3, water-ground limestone 10-13, ethyl propenoate 120-150, vinyl acetate 140-200, ammonium persulphate 0.7-2, deionized water 500-700, ammonium sulphite 0.5-1, dodecyl diphenyl oxide disodium sulfonate 2-3, adhesive aid 4-5;

Described adhesive aid is made up of each raw material of following weight parts:

Acrylate and vinyl acetate emulsion 30-37, narra micro mist 1-2, hydroxyethyl methylacrylate 2-3, ammonium persulphate 2-3, Starso 1-2, silica gel 1-2, AESA 0.8-1, deionized water 10-15;

By silica gel, ammonium persulphate mixing, add hydroxyethyl methylacrylate after stirring, at 60-70 DEG C, be uniformly mixed 3-5 minute, join in acrylate and vinyl acetate emulsion, stir;

Be mixed to join in deionized water by Starso and narra micro mist, raised temperature is 50-60 DEG C, adds AESA, stirs;

Mixed with each raw material of residue by each raw material after above-mentioned process, 300-400 rev/min of dispersed with stirring 10-20 minute, obtains described adhesive aid.

A preparation method for body of wall anticracking waterproof coating, is characterized in that comprising the following steps:

(1) by ammonium persulphate, ammonium sulphite mixing, add the 10-15% of above-mentioned deionized water weight, stirring and dissolving, obtains initiator solution;

(2) get dodecyl diphenyl oxide disodium sulfonate, add the 70-80% of residue deionized water weight, insulated and stirred 10-20 minute at 50-60 DEG C, is cooled to normal temperature, obtains pre-emulsion;

(3) the 40-50% mixing of the 30-40% of aforesaid propylene acetoacetic ester weight, vinyl acetate weight is got, add above-mentioned pre-emulsion, 30-35 minute is uniformly mixed at 60-65 DEG C, raised temperature is 70-75 DEG C, add above-mentioned initiator solution, treat that emulsion is blue phase, insulation 60-70 minute, obtains seed emulsion;

(4) by remaining ethyl propenoate, vinyl acetate, dibutyl maleate, triglycol mixing, insulated and stirred 20-30 minute at 65-70 DEG C, obtains mix monomer;

(5) in above-mentioned seed emulsion, add dropping mix monomer, time for adding is 90-120 minute, after dropwising, at 80-90 DEG C, is incubated 50-60 minute, cooling, filters discharging with 200-250 eye mesh screen;

(6) material above-mentioned steps (5) obtained mixes with each raw material of residue, and 800-1200 rev/min of dispersed with stirring 20-30 minute, obtains described body of wall anticracking waterproof coating.

Advantage of the present invention is:

There are excellent adhesion property in coating of the present invention and basic unit, and have good workability, paint film is hard, and anti-impact force is strong, are not easy cracking, and impervious strong, good waterproof performance, texture is soft.The ammonium persulphate added in adhesive aid of the present invention has heat insulating effect, and acrylate and vinyl acetate emulsion and narra micro mist, hydroxyethyl methylacrylate, Starso, silica gel is mixed and modified effectively can improve cohesive strength, strengthens coatingsurface resistance and stability.

Embodiment

Embodiment 1

A kind of body of wall anticracking waterproof coating, is characterized in that what it was made up of the raw material of following weight parts:

N-ethyl-adjacency pair toluol sulfonamide 2, Concha rapanae thomasianae powder 4, calcium aluminate 2, sebacic dihydrazide 0.5, Sodium hexametaphosphate 99 0.6,2,2-dithienyl methyl glycolate 1-3, dibutyl maleate 2, triglycol 2, water-ground limestone 13, ethyl propenoate 150, vinyl acetate 200, ammonium persulphate 0.7, deionized water 700, ammonium sulphite 0.5, dodecyl diphenyl oxide disodium sulfonate 2, adhesive aid 5;

Described adhesive aid is made up of each raw material of following weight parts:

Acrylate and vinyl acetate emulsion 37, narra micro mist 1, hydroxyethyl methylacrylate 2, ammonium persulphate 2, Starso 2, silica gel 1, AESA 0.8, deionized water 15;

By silica gel, ammonium persulphate mixing, add hydroxyethyl methylacrylate after stirring, at 70 DEG C, be uniformly mixed 5 minutes, join in acrylate and vinyl acetate emulsion, stir;

Be mixed to join in deionized water by Starso and narra micro mist, raised temperature is 60 DEG C, adds AESA, stirs;

Mixed with each raw material of residue by each raw material after above-mentioned process, 400 revs/min of dispersed with stirring 20 minutes, obtain described adhesive aid.

A preparation method for body of wall anticracking waterproof coating, is characterized in that comprising the following steps:

(1) by ammonium persulphate, ammonium sulphite mixing, add 15% of above-mentioned deionized water weight, stirring and dissolving, obtains initiator solution;

(2) get dodecyl diphenyl oxide disodium sulfonate, add 80% of residue deionized water weight, at 60 DEG C, insulated and stirred 20 minutes, is cooled to normal temperature, obtains pre-emulsion;

(3) get 40% of aforesaid propylene acetoacetic ester weight, 40% mixing of vinyl acetate weight, add above-mentioned pre-emulsion, at 65 DEG C, be uniformly mixed 35 minutes, raised temperature is 75 DEG C, adds above-mentioned initiator solution, treats that emulsion is blue phase, be incubated 70 minutes, obtain seed emulsion;

(4) by remaining ethyl propenoate, vinyl acetate, dibutyl maleate, triglycol mixing, at 70 DEG C, insulated and stirred 30 minutes, obtains mix monomer;

(5) in above-mentioned seed emulsion, add dropping mix monomer, time for adding is 120 minutes, after dropwising, at 90 DEG C, be incubated 60 minutes, and cooling filters discharging with 250 eye mesh screens;

(6) material above-mentioned steps (5) obtained mixes with each raw material of residue, and 1200 revs/min of dispersed with stirring 30 minutes, obtain described body of wall anticracking waterproof coating.

Performance test:

Unit elongation: >=300%;

Watertightness: 0.3MPa (one hour waterproof).

Claims (2)

1. a body of wall anticracking waterproof coating, is characterized in that what it was made up of the raw material of following weight parts:

N-ethyl-adjacency pair toluol sulfonamide 1-2, Concha rapanae thomasianae powder 2-4, calcium aluminate 2-3, sebacic dihydrazide 0.5-1, Sodium hexametaphosphate 99 0.6-1,2,2-dithienyl methyl glycolate 1-3, dibutyl maleate 2-4, triglycol 2-3, water-ground limestone 10-13, ethyl propenoate 120-150, vinyl acetate 140-200, ammonium persulphate 0.7-2, deionized water 500-700, ammonium sulphite 0.5-1, dodecyl diphenyl oxide disodium sulfonate 2-3, adhesive aid 4-5;

Described adhesive aid is made up of each raw material of following weight parts:

Acrylate and vinyl acetate emulsion 30-37, narra micro mist 1-2, hydroxyethyl methylacrylate 2-3, ammonium persulphate 2-3, Starso 1-2, silica gel 1-2, AESA 0.8-1, deionized water 10-15;

By silica gel, ammonium persulphate mixing, add hydroxyethyl methylacrylate after stirring, at 60-70 DEG C, be uniformly mixed 3-5 minute, join in acrylate and vinyl acetate emulsion, stir;

Be mixed to join in deionized water by Starso and narra micro mist, raised temperature is 50-60 DEG C, adds AESA, stirs;

Mixed with each raw material of residue by each raw material after above-mentioned process, 300-400 rev/min of dispersed with stirring 10-20 minute, obtains described adhesive aid.

2. a preparation method for body of wall anticracking waterproof coating as claimed in claim 1, is characterized in that comprising the following steps:

(1) by ammonium persulphate, ammonium sulphite mixing, add the 10-15% of above-mentioned deionized water weight, stirring and dissolving, obtains initiator solution;

(2) get dodecyl diphenyl oxide disodium sulfonate, add the 70-80% of residue deionized water weight, insulated and stirred 10-20 minute at 50-60 DEG C, is cooled to normal temperature, obtains pre-emulsion;

(3) the 40-50% mixing of the 30-40% of aforesaid propylene acetoacetic ester weight, vinyl acetate weight is got, add above-mentioned pre-emulsion, 30-35 minute is uniformly mixed at 60-65 DEG C, raised temperature is 70-75 DEG C, add above-mentioned initiator solution, treat that emulsion is blue phase, insulation 60-70 minute, obtains seed emulsion;

(4) by remaining ethyl propenoate, vinyl acetate, dibutyl maleate, triglycol mixing, insulated and stirred 20-30 minute at 65-70 DEG C, obtains mix monomer;

(5) in above-mentioned seed emulsion, add dropping mix monomer, time for adding is 90-120 minute, after dropwising, at 80-90 DEG C, is incubated 50-60 minute, cooling, filters discharging with 200-250 eye mesh screen;

(6) material above-mentioned steps (5) obtained mixes with each raw material of residue, and 800-1200 rev/min of dispersed with stirring 20-30 minute, obtains described body of wall anticracking waterproof coating.