CN104140776A - Aqueous environmentally-friendly wall interface processing material and preparation method thereof - Google Patents

Abstract

The invention belongs to the field of construction materials, and relates to an aqueous environmentally-friendly wall interface processing material and a preparation method thereof. The wall interface processing material is prepared by using 4-8wt% of a water-soluble high molecular polymer, 15-25wt% of a polymer emulsion, 5-10wt% of an acrylic acid monomer, 1-1.5wt% of an assistant and 60-70wt% of softened water. The preparation method has the advantages of simplicity and easy control, and the above product obtained in the invention has the advantages of attractiveness in price and quality, no toxicity or smell, no pollution to the environment, harmlessness to the health of bodies of builders, and safe and convenient use. The material can be constructed through brushing, roller coating and spraying, has excellent permeability, and can fully infiltrate the surface of a base material to make the base layer compact in order to improve the adhesion of the interface. The material can be widely used in compact treatment of new and old building brick and concrete wall surface bases, wall surface old coating renew treatment reconstruction and the like.

Description

Aqueous, environmental protective wall interface processing material and preparation method thereof

Technical field

The present invention relates to structure material, relate in particular to a kind of aqueous, environmental protective inexpensive wall interface processing material and preparation method.

Background technology

Wall interface processing material claims again wall solid, is that a kind of metope solidifies glue, is the renewal product of traditional 107 glue, 108 glue, interfacial agents.Mostly tradition 107 glue, 108 glue, interfacial agents are with water-soluble polymers tackiness agent such as modified formaldehyde polyvinyl alcohol, urea-formaldehyde resins, ubiquity residual free monomer formaldehyde in product, and toxicity is large, not environmental protection.As everyone knows, 37% formalin (formalin) is a kind of strong sanitas, and the corpse that wherethrough was managed for many years can be not putrid and deteriorated, and reason is exactly that formaldehyde has changed Normocellular structure, makes it produce variation institute extremely.If use 107 traditional glue, 108 glue, interfacial agents as wall interface processing material, when after house decoration, remaining formaldehyde will slow release in room air, people live in such environment, by air inhaled formaldehyde unconsciously, long-term suck that run up to a certain degree will be sick, and disease now not common cold, fever, may be exactly the incurable diseases such as leukemia.As can be seen here, finishing uses the wall interface processing material containing formaldehyde such as traditional 107 glue, 108 glue, interfacial agents, quite large to harm.

Summary of the invention

The toxicity that object of the present invention is just to overcome the adhesive products such as 107 traditional glue, 108 glue, interfacial agents is large, and the drawback of not environmental protection provides one containing free formaldehyde, inexpensive, the wall interface processing material of real aqueous, environmental protective.

For realizing the object of the invention, the present invention adopts following component to be prepared into wall interface processing material, and each component weight percent content is: high molecular weight water soluble polymer 4-8%, polymer emulsion 15-25%, acrylic monomer 5-10%, auxiliary agent 1-1.5%, softening water 60-70%.

Described high molecular weight water soluble polymer is selected from one or more in the solid shape such as polyvinyl alcohol, hydroxyethyl ether cellulose, hydroxypropylcelluloether ether, TYLOSE 30000, polyacrylamide, rubber powder or powdery superpolymer; Preferred alcoholysis degree 87.0 ~ 89.0 % of described polyvinyl alcohol, viscosity 21.0 ~ 26.0 mPas.

Described polymer emulsion is selected from one or more in the emulsions such as benzene emulsion that solid content is 30%-50%, pure-acrylic emulsion, organosilicon crylic acid latex, polyaminoester emulsion;

Described acrylic monomer is selected from one or more in the monomers such as vinylformic acid, Hydroxyethyl acrylate, Propylene glycol monoacrylate, acrylamide;

Described auxiliary agent is selected from Soxylat A 25-7, potassium aluminium sulfate, and boric acid or borax, ammonium persulphate or Potassium Persulphate, mineral oil, isothiazolinone etc. are two or more;

Described softening water is deionized water or distilled water.

Its preparation method is as follows:

(1) in reaction vessel, add formula ratio part softening water, high molecular weight water soluble polymer, acrylic monomer, part of auxiliary, soaking and stirring;

(2) after material stirring is even, heat temperature raising, is controlled at 98 ± 2 DEG C of reactive polymeric modifications of temperature;

(3) reduce temperature to 80 ± 2 DEG C, add formula ratio part softening water, polymer emulsion, remainder auxiliary agent, be controlled at 80 ± 2 DEG C of reactive polymeric modifications of temperature;

(4) add formula ratio residue softening water, stir and be down to 50 ± 2 DEG C of temperature, with screen filtration, make finished product.

The present invention makes the wall interface processing material of aqueous, environmental protective taking environment-friendly materials as raw material, containing free formaldehyde, not nonpoisonous and tasteless, and environmentally safe is healthy harmless to workmen, safe and convenient to use, inexpensive.This wall interface processing material has excellent perviousness, can fully infiltrate substrate surface, after concrete walls surface construction, the solid material of a part of wall is penetrated into metope inside, the solid material of part wall is stayed metope surface, in the time smearing mortar or batch putty, the solid material dissolves of this part wall of metope surface swell to mortar or putty in, after mortar or putty solidify, just form firmly entirety together with metope, make basic unit closely knit, improve the sticking power at interface, reach good protection effect.

Embodiment

Embodiment 1

Wall interface processing material each component weight percent content of the present invention is as follows:

Polyvinyl alcohol (alcoholysis degree 87.0 ~ 89.0 %, viscosity 21.0 ~ 26.0 mPas) 5

Solid content is 30% benzene emulsion 20

Vinylformic acid, acrylamide 8

Mineral oil, Potassium Persulphate 1.5

Softening water 65.5

Its preparation method is as follows:

(1) in reaction vessel, add formula ratio part softening water, high molecular weight water soluble polymer, acrylic monomer, part of auxiliary, immersion treatment time 2 h;

(2) after material stirring is even, heat temperature raising, is controlled at 98 ± 2 DEG C of temperature, the modification of time 2 h reactive polymeric, and rotating speed is 80 revs/min;

(3) reduce temperature to 80 ± 2 DEG C, add formula ratio part softening water, polymer emulsion, remainder auxiliary agent, be controlled at 80 ± 2 DEG C of temperature, the reactive polymeric modification of 1 hour time, 80 revs/min of rotating speeds;

(4) add formula ratio residue softening water, stir and be down to 50 ± 2 DEG C of proper temperatures, 80 revs/min of rotating speeds;

(5) filter with 80 eye mesh screens, detect qualified after, packaging makes finished product.

Embodiment 2

Wall interface processing material each component weight percent content of the present invention is as follows:

Hydroxyethyl ether cellulose 4

Pure-acrylic emulsion 16

Vinylformic acid, acrylamide 10

Mineral oil, Potassium Persulphate 1.2

Softening water 68.8

Its preparation method is as follows:

(1) in reaction vessel, add formula ratio part softening water, high molecular weight water soluble polymer, acrylic monomer, part of auxiliary, immersion treatment time 2 h;

(2) after material stirring is even, heat temperature raising, is controlled at 98 ± 2 DEG C of temperature, the modification of time 2 h reactive polymeric, and rotating speed is 80 revs/min;

(3) reduce temperature to 80 ± 2 DEG C, add formula ratio part softening water, polymer emulsion, remainder auxiliary agent, be controlled at 80 ± 2 DEG C of temperature, the reactive polymeric modification of 1 hour time, 80 revs/min of rotating speeds;

(4) add formula ratio residue softening water, stir and be down to 50 ± 2 DEG C of proper temperatures, 80 revs/min of rotating speeds;

(5) filter with 80 eye mesh screens, detect qualified after, packaging makes finished product.

Aqueous, environmental protective wall interface processing material of the present invention can adopt the method constructions such as brushing, roller coating, spraying, and rebuilding construction etc. is processed in the renovation that can be widely used in the closely knit processing of new and old building Zhuan Hun metope basic unit, the old coating of metope.

Claims (3)

1. an aqueous, environmental protective wall interface processing material, it is characterized in that, adopt following component to be prepared from, each component weight percent is: high molecular weight water soluble polymer 4-8%, polymer emulsion 15-25%, acrylic monomer 5-10%, auxiliary agent 1-1.5%, softening water 60-70%;

Described high molecular weight water soluble polymer is selected from one or more in the solid shape such as polyvinyl alcohol, hydroxyethyl ether cellulose, hydroxypropylcelluloether ether, TYLOSE 30000, polyacrylamide, rubber powder or powdery superpolymer;

Described polymer emulsion is selected from one or more in the emulsions such as benzene emulsion that solid content is 30%-50%, pure-acrylic emulsion, organosilicon crylic acid latex, polyaminoester emulsion;

Described acrylic monomer is selected from one or more in the monomers such as vinylformic acid, Hydroxyethyl acrylate, Propylene glycol monoacrylate, acrylamide;

Described auxiliary agent is selected from Soxylat A 25-7, potassium aluminium sulfate, and boric acid or borax, ammonium persulphate or Potassium Persulphate, mineral oil, isothiazolinone etc. are two or more;

Described softening water is deionized water or distilled water.

2. aqueous, environmental protective wall interface processing material as claimed in claim 1, is characterized in that, preferred alcoholysis degree 87.0 ~ 89.0 % of described polyvinyl alcohol, viscosity 21.0 ~ 26.0 mPas.

3. the method for preparation aqueous, environmental protective wall interface processing material as claimed in claim 1, is characterized in that, its preparation method is as follows:

(1) in reaction vessel, add formula ratio part softening water, high molecular weight water soluble polymer, acrylic monomer, part of auxiliary, soaking and stirring;

(2) after material stirring is even, heat temperature raising, is controlled at 98 ± 2 DEG C of reactive polymeric modifications of temperature;

(3) reduce temperature to 80 ± 2 DEG C, add formula ratio part softening water, polymer emulsion, remainder auxiliary agent, be controlled at 80 ± 2 DEG C of reactive polymeric modifications of temperature;

(4) add formula ratio residue softening water, stir and be down to 50 ± 2 DEG C of temperature, with screen filtration, make finished product.