CN111747690A

CN111747690A - Door and window frame joint filling waterproof mortar with strong hydrophobic and micro-elastic functions

Info

Publication number: CN111747690A
Application number: CN202010489899.3A
Authority: CN
Inventors: 黄生辉
Original assignee: Jiangmen Yucheng New Building Material Co ltd
Current assignee: Jiangmen Yucheng New Building Material Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-10-09

Abstract

The invention discloses door and window frame joint filling waterproof mortar with a strong hydrophobic and micro-elastic function, which comprises powder and polyphenyl particles, wherein the ratio of the powder to the polyphenyl particles is 300-400 Kg:1M³The powder material comprises the following components in percentage by mass: 0.1 to 0.5 percent of hydroxypropyl methyl cellulose, 0.1 to 0.5 percent of starch ether, 0.2 to 1 percent of hydrophobic agent, 0.1 to 0.5 percent of redispersible latex powder, 0.1 to 0.5 percent of polypropylene fiber, 0.1 to 0.5 percent of wood fiber and 80 to 99 percent of cement. The mortar is prepared from hydroxypropyl methyl cellulose, starch ether, a hydrophobic agent, redispersible latex powder, polypropylene fiber, wood fiber and cement, the hydrophobicity of the surface of the mortar is improved, the water absorption of the surface layer mortar is reduced, and the strength, the crack resistance and the hydrophobicity of the mortar are ensured; by mixing the polyphenyl particles, the mortar has contractibility, thereby improving the moisture resistance and the impermeability of the mortar.

Description

Door and window frame joint filling waterproof mortar with strong hydrophobic and micro-elastic functions

Technical Field

The invention relates to the technical field of building materials, in particular to door and window frame joint filling waterproof mortar with a strong hydrophobic and micro-elastic function.

Background

At present, the repair and water prevention of door and window frame joints of buildings at home and abroad generally adopt waterproof materials such as common cement mortar, common waterproof mortar, polymer cement waterproof mortar and the like. The waterproof principle of the material is that the waterproof property of the mortar is improved by adding a waterproof agent, so that external water is difficult to permeate into the mortar and enter a building wall; meanwhile, the material has no elasticity, and the expansion of walls and doors and windows can cause the material at the joint filling position to form gaps or cracks along with the change of seasons. Therefore, how to have a certain contractibility on the premise of ensuring that the waterproof mortar has a waterproof function becomes a technical problem to be solved urgently.

Disclosure of Invention

The invention aims to solve at least one of the technical problems in the prior art, and provides the door and window frame joint filling waterproof mortar with the strong hydrophobic and micro-elastic functions, which can effectively improve the hydrophobicity of the surface of the mortar, has elasticity and improves the moisture resistance and the impermeability of the mortar.

The solution of the invention for solving the technical problem is as follows: the door and window frame joint filling waterproof mortar with the strong hydrophobic and micro-elastic functions comprises powder and polyphenyl particles, wherein the ratio of the powder to the polyphenyl particles is 300-400 Kg:1M³The powder material comprises the following components in percentage by mass: 0.1 to 0.5 percent of hydroxypropyl methyl cellulose, 0.1 to 0.5 percent of starch ether, 0.2 to 1 percent of hydrophobic agent, 0.1 to 0.5 percent of redispersible latex powder, 0.1 to 0.5 percent of polypropylene fiber, 0.1 to 0.5 percent of wood fiber and 80 to 99 percent of cement.

Further, the powder material also comprises a defoaming agent for preventing foam from forming and a water reducing agent for reducing the water consumption for mixing.

Further, the powder comprises 0.05-1% of defoaming agent and 0.05-1% of water reducing agent by mass percent.

Further, the powder comprises 0.1% of defoaming agent and 0.1% of water reducing agent by mass percent.

Further, the cement has a strength rating of greater than or equal to 425# cement.

Further, the hydrophobizing agent, the dispersible latex powder and the cement are used in combination.

Further, the powder comprises, by mass, 0.1% of hydroxypropyl methyl cellulose, 0.1% of starch ether, 0.8% of a hydrophobizing agent, 0.3% of redispersible latex powder, 0.1% of polypropylene fiber, 0.1% of wood fiber and 98% of cement.

One or more technical schemes provided in the embodiment of the invention have at least the following beneficial effects: the mortar is prepared from hydroxypropyl methyl cellulose, starch ether, a hydrophobic agent, redispersible latex powder, polypropylene fiber, wood fiber and cement which are mixed according to a certain proportion, so that the mortar has integral compactness, the hydrophobicity of the surface of the mortar is improved, the water absorption of the surface layer mortar is reduced, the strength, the crack resistance and the hydrophobicity of the mortar are ensured, and the mortar has more excellent performances on slump and the water absorption; by mixing the polyphenyl granules, the mortar has contractibility, so that the mortar has more excellent elasticity, thereby improving the moisture resistance and the impermeability of the mortar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the invention.

The embodiment of the invention relates to door and window frame joint filling waterproof mortar with a strong hydrophobic and micro-elastic function, which comprises powder and polyphenyl particles, wherein the ratio of the powder to the polyphenyl particles is 300-400 Kg:1M³The powder material comprises the following components in percentage by mass: 0.1 to 0.5 percent of hydroxypropyl methyl cellulose, 0.1 to 0.5 percent of starch ether, 0.2 to 1 percent of hydrophobic agent, 0.1 to 0.5 percent of redispersible latex powder, 0.1 to 0.5 percent of polypropylene fiber, 0.1 to 0.5 percent of wood fiber and 80 to 99 percent of cement.

It can be understood that the polypropylene fiber, the wood fiber and the cement are used in combination, so that the anti-cracking performance and the bonded strength of the mortar are ensured, the hydroxypropyl methyl cellulose is contained in the mortar, the product construction performance can be improved, and the strength of the interface mortar after later curing is ensured.

In some embodiments of the present invention, based on the component proportions of the above embodiments, the following mass percentages are preferred, wherein the powder comprises, by mass percentage, 0.1% of hydroxypropyl methyl cellulose, 0.1% of starch ether, 0.8% of a water repellent, 0.3% of redispersible latex powder, 0.1% of polypropylene fiber, 0.1% of wood fiber, and 98% of cement.

In specific practice, the performance test data of the above embodiment is as follows:

serial number	Detecting items	Unit of	Test results	Results of ordinary cement mortar
					1	Dry apparent density	Kg/m³	505	1777
2	Modulus of elasticity under static pressure	GPa	490	2.8*10⁴
					3	Water absorption rate	％	12	14.2

TABLE 1 Performance test data sheet

As is apparent from the data in table 1, the door and window frame caulking waterproof mortar with strong hydrophobic and micro-elastic functions provided by the embodiment has lower values in dry apparent density, static pressure elastic modulus and water absorption than common cement mortar, namely, more excellent performances in cost performance, flexibility and hydrophobicity, effectively improves the impermeability of construction gaps, eliminates the subsequent influence of moisture on the positions around the gaps, dries the peripheries of the wall gaps, does not wet and mildew, and reduces the phenomena of mildew, damp, blistering and shedding; on the other hand, the embodiment is a single-component product, so that the formula is fine, the construction is simple and convenient, the labor and material cost is saved, and the bonding problem of water resistance and a subsequent process is effectively solved.

In some embodiments of the invention, the powder further comprises a defoamer for preventing foam formation and a water reducer for reducing the amount of water used for blending. The powder comprises 0.05-1% of defoaming agent and 0.05-1% of water reducing agent by mass percent. Preferably, the powder material comprises 0.1% of defoaming agent and 0.1% of water reducing agent by mass percentage.

It can be understood that the defoaming agent can prevent foam formation, the water reducing agent can reduce the mixing water consumption, and the production of the mortar can be optimized by adding the defoaming agent and the water reducing agent.

In some embodiments of the invention, the cement has a strength rating of greater than or equal to 425# cement. The water repellent agent, the dispersible emulsion powder and the cement are used in combination.

It can be understood that the strength of the cement is greater than or equal to 425# cement, which can ensure the strength of the mortar. The water repellent agent, the dispersible emulsion powder and the cement are used in combination, so that the production effectiveness is ensured.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. The door and window frame joint filling waterproof mortar with the strong hydrophobic and micro-elastic functions is characterized by comprising powder and polyphenyl particles, wherein the ratio of the powder to the polyphenyl particles is 300-400 Kg:1M³The powder material comprises the following components in percentage by mass: 0.1 to 0.5 percent of hydroxypropyl methyl cellulose, 0.1 to 0.5 percent of starch ether, 0.2 to 1 percent of hydrophobic agent, 0.1 to 0.5 percent of redispersible latex powder, 0.1 to 0.5 percent of polypropylene fiber, 0.1 to 0.5 percent of wood fiber and 80 to 99 percent of cement.

2. The water-proof mortar for gap filling of door and window frames with strong hydrophobic and micro-elastic function as claimed in claim 1, wherein the powder further comprises defoaming agent for preventing foam formation and water reducing agent for reducing water consumption for blending.

3. The door and window frame joint filling waterproof mortar with the strong hydrophobic and micro-elastic function according to claim 2, wherein the powder comprises 0.05 to 1 percent of the defoamer and 0.05 to 1 percent of the water reducer by mass percentage.

4. The door and window frame joint filling waterproof mortar with the strong hydrophobic and micro-elastic function according to claim 3, wherein the powder comprises 0.1% of the defoaming agent and 0.1% of the water reducing agent by mass percent.

5. A water-proof mortar for filling joints of door and window frames with strong hydrophobic and micro-elastic functions as claimed in claim 1, wherein the strength grade of the cement is greater than or equal to 425# cement.

6. The mortar of claim 1, wherein the water repellent agent, the dispersible latex powder and the cement are used in combination.

7. The water-proof mortar for door and window frames with strong hydrophobic and micro-elastic functions as recited in any one of claims 1-6, wherein the powder comprises, by mass, 0.1% of hydroxypropyl methylcellulose, 0.1% of starch ether, 0.8% of water repellent, 0.3% of redispersible powders, 0.1% of polypropylene fibers, 0.1% of wood fibers, and 98% of cement.