阅读说明：本技术 一种外墙强力透明防水胶及其制备方法 (Strong transparent waterproof glue for outer wall and preparation method thereof ) 是由 谢玉华 于 2020-08-14 设计创作，主要内容包括：本发明提供一种外墙强力透明防水胶,属于建筑材料技术领域。按重量份计,其原料组分包括：丙烯酸乳液60-70份、硅丙乳液20-30份、增稠剂0.3-0.5份、成膜助剂5-8份、消泡剂0.5-1份、pH调节剂0.1-0.2份、水5-10份、石蜡10-20份、增粘剂2-3份、聚酯树脂5-20份。本发明还提供了一种外墙强力透明防水胶的制备方法。本发明制备的的外墙用透明防水胶具有优异的成膜性,柔软、坚韧能抵抗基层形开裂时所产生的应力,利用石蜡和聚酯树脂的协同作用,提升其耐候性和低温稳定性,使得胶粘能力强,使用寿命长。(The invention provides a strong transparent waterproof adhesive for an outer wall, belonging to the technical field of building materials. The raw material components comprise the following components in parts by weight: 60-70 parts of acrylic emulsion, 20-30 parts of silicone-acrylic emulsion, 0.3-0.5 part of thickening agent, 5-8 parts of film-forming additive, 0.5-1 part of defoaming agent, 0.1-0.2 part of pH regulator, 5-10 parts of water, 10-20 parts of paraffin, 2-3 parts of tackifier and 5-20 parts of polyester resin. The invention also provides a preparation method of the strong transparent waterproof adhesive for the outer wall. The transparent waterproof adhesive for the outer wall, prepared by the invention, has excellent film forming property, is soft and tough, can resist stress generated when a base layer is cracked, and improves the weather resistance and low-temperature stability by utilizing the synergistic effect of paraffin and polyester resin, so that the adhesive capacity is strong and the service life is long.)

1. The strong transparent waterproof glue for the exterior wall is characterized by comprising the following raw material components in parts by weight:

60-70 parts of acrylic emulsion, 20-30 parts of silicone-acrylic emulsion, 0.3-0.5 part of thickening agent, 5-8 parts of film-forming additive, 0.5-1 part of defoaming agent, 0.1-0.2 part of pH regulator, 5-10 parts of water, 10-20 parts of paraffin, 2-3 parts of tackifier and 5-20 parts of polyester resin.

2. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the weight ratio of the paraffin to the polyester resin is 2: 1-4.

3. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the solid content of the acrylic emulsion is 60-65%.

4. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the solid content of the silicone-acrylic emulsion is 25-30%.

5. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the thickener comprises an alkali swelling thickener.

6. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the film forming auxiliary agent comprises one or more of alcohol ester twelve, propylene glycol butyl ether or propylene glycol methyl ether acetate.

7. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the defoaming agent comprises an emulsion type silicone oil defoaming agent.

8. An exterior strong transparent waterproof adhesive according to claim 1, characterized in that: the tackifier comprises modified rosin resin.

9. The method for preparing the strong transparent waterproof glue for the outer wall according to any one of claims 1 to 8, characterized by comprising the following steps:

(1) adding the weighed acrylic emulsion into a reaction kettle; stirring, wherein the rotating speed of the stirrer is maintained at 350-450 r/min;

(2) firstly, adding the silicone-acrylic emulsion and the polyester resin into a reaction kettle, adding the film-forming auxiliary agent after 5-10min, stirring for 5-10min, and then adding the defoaming agent and the paraffin wax; after the rotating speed of the stirrer is increased to 500-550r/min, the thickening agent and the tackifier are slowly added;

(3) when the slurry is obviously thickened, the rotating speed of the stirrer is increased to 600-800r/min, and then the pH regulator is added to stabilize the pH range of the emulsion to 8-9;

(4) and after the feeding is finished, stirring the mixture in the stirrer for 15-30min to obtain the product.

Technical Field

The invention relates to the technical field of building materials, in particular to a strong transparent waterproof adhesive for an outer wall and a preparation method thereof.

Background

The waterproof glue belongs to chemical products and has the characteristics of high flexibility, water resistance, moisture insulation, strong adhesive force, strong cracking resistance, strong adhesive force and the like. The transparent waterproof glue for outer wall is one kind of flexible transparent colorless outer wall waterproof paint prepared with special copolymer emulsion as base material and through adding synthetic rubber emulsion modifier, surfactant, plasticizer, etc. The transparent waterproof glue for the outer wall is used for decorating the outer wall, is waterproof and attractive, and is a common material for the waterproof paint for the outer wall.

The existing waterproof glue for the outer wall mainly adopts JS polymer cement-based waterproof paint and the like, liquid materials consist of styrene-acrylic emulsion or VAE emulsion, and cement with a certain proportion is added when the waterproof glue is used. The wall surface pasted with the ceramic tiles is not suitable for using the outer wall waterproof glue material, and the ceramic tiles can be covered, so that the effect of keeping the outer wall attractive and tidy can not be achieved. In addition, the manufacturing process of the waterproof glue material for the outer wall is complex, the waterproof glue material can be coated after being stirred for 5-10min before construction, and the waterproof glue material can be stirred to prevent bottom sinking when being constructed, so the manufacturing cost is high.

Disclosure of Invention

The invention aims to provide a strong transparent waterproof adhesive for an outer wall and a preparation method thereof.

In order to achieve the purpose, the invention provides a strong transparent waterproof glue for an outer wall, which comprises the following raw material components in parts by weight:

60-70 parts of acrylic emulsion, 20-30 parts of silicone-acrylic emulsion, 0.3-0.5 part of thickening agent, 5-8 parts of film-forming additive, 0.5-1 part of defoaming agent, 0.1-0.2 part of pH regulator, 5-10 parts of water, 10-20 parts of paraffin, 2-3 parts of tackifier and 5-20 parts of polyester resin.

Wherein the weight ratio of the paraffin wax to the polyester resin is 2: 1-4.

Wherein the solid content of the acrylic emulsion is 60-65%.

Wherein, the solid content of the silicone acrylic emulsion is 25-30%.

Wherein the thickener comprises an alkali swelling thickener.

Wherein, the film forming auxiliary agent comprises one or more of alcohol ester twelve, propylene glycol butyl ether or propylene glycol methyl ether acetate.

Wherein the defoaming agent comprises an emulsion type silicone oil defoaming agent.

Wherein the tackifier comprises modified rosin resin.

The invention also provides a preparation method of the strong transparent waterproof adhesive for the outer wall, which comprises the following steps:

(1) adding the weighed acrylic emulsion into a reaction kettle; stirring, wherein the rotating speed of the stirrer is maintained at 350-450 r/min;

(2) firstly, adding the silicone-acrylic emulsion and the polyester resin into a reaction kettle, adding the film-forming auxiliary agent after 5min, stirring for 5min, and then adding the defoaming agent and the paraffin; after the rotating speed of the stirrer is increased to 500-550r/min, the thickening agent and the tackifier are slowly added;

(3) when the slurry is obviously thickened, the rotating speed of the stirrer is increased to 600-800r/min, and then the pH regulator is added to stabilize the pH range of the emulsion to 8-9;

(4) and after the feeding is finished, stirring the mixture in the stirrer for 15-30min to obtain the product.

The invention has the beneficial effects that:

the transparent waterproof adhesive for the outer wall has excellent film forming property, is soft and tough, can resist stress generated when a base layer is cracked, and improves the weather resistance and low-temperature stability by utilizing the synergistic effect of paraffin and polyester resin, so that the adhesive has strong adhesive capacity and long service life. The coating is colorless and transparent, the original wall decoration effect cannot be damaged after the coating, and the phenomena of yellowing, dust adhesion and the like cannot occur; in addition, the preparation method of the invention is simple and easy to control, has low production cost and simple and convenient use method, and can be directly sprayed, coated, brushed and scraped on the wall surface.

Detailed Description

In order to more clearly and completely describe the technical scheme of the invention, the invention is further described in detail by the specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the invention, and are not used for limiting the invention, and various changes can be made within the scope defined by the claims of the invention.