阅读说明：本技术 一种钢筋混泥土楼板撞击声隔声涂料及其制备方法 (Reinforced concrete floor impact sound insulation coating and preparation method thereof ) 是由 茹开颜 林博波 茹开发 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种钢筋混泥土楼板撞击声隔声涂料及其制备方法,属于涂料及其制备方法技术领域,本发明的钢筋混泥土楼板撞击声隔声涂料中,以酚醛树脂乳液,具有隔声效果,还配伍使用了空心漂珠、云母粉和玄武岩粉等,使该涂料能够对噪声进行吸音,具有更良好的隔声降噪的功能；而且,本发明的空心漂珠壁薄中空,具有良好的减震效果,与云母粉、玄武岩粉、羧基丁腈胶粉二氧化钛纳米粉和二氧化硅纳米粉配伍使用,降低因振动产生的噪声污染,从而使钢筋混泥土楼板撞击声隔声涂料具有双重的隔音效果。(The invention discloses a reinforced concrete floor impact sound insulation coating and a preparation method thereof, belonging to the technical field of coatings and preparation methods thereof, wherein the reinforced concrete floor impact sound insulation coating has a sound insulation effect by using phenolic resin emulsion, and also uses hollow floating beads, mica powder, basalt powder and the like in a compatible manner, so that the coating can absorb noise and has better sound insulation and noise reduction functions; moreover, the hollow floating bead is thin and hollow in wall and has good shock absorption effect, and is compatible with mica powder, basalt powder, carboxyl nitrile rubber powder, titanium dioxide nano powder and silicon dioxide nano powder for use, so that noise pollution caused by vibration is reduced, and the impact sound and sound insulation coating for the reinforced concrete floor slab has double sound insulation effect.)

1. The utility model provides a reinforced concrete floor impact sound insulation coating which characterized in that: the paint comprises the following components in parts by weight: 8-15 parts of phenolic resin emulsion, 2-3 parts of titanium dioxide nano powder, 3-4 parts of silicon dioxide nano powder, 10-20 parts of basalt powder, 10-20 parts of hollow floating beads, 3-5 parts of mica powder, 1-5 parts of carboxyl butyronitrile rubber powder, 30-35 parts of water and 0.6-2 parts of auxiliary materials.

2. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the phenolic resin emulsion is prepared by mixing 80-90 parts by weight of phenolic resin nano particles, 10-20 parts by weight of solvent and 0.1-0.4 part by weight of emulsifier.

3. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the titanium dioxide nano powder is at least one of rutile type titanium dioxide nano powder and anatase type titanium dioxide nano powder.

4. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the median particle diameter of the hollow floating bead is 3-8 μm.

5. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the median particle diameter of the carboxyl butyronitrile rubber powder is 200-400 mu m.

6. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the median particle diameter of the silicon dioxide nano powder is 50-500 nm.

7. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the median particle size of the mica powder is 20-40 μm.

8. The reinforced concrete floor impact sound and sound insulation coating as claimed in claim 1, wherein: the medium particle size of the basalt powder is 200-500 mu m.

9. A preparation method of impact sound and sound insulation coating for reinforced concrete floor slabs is characterized by comprising the following steps: the method comprises the following steps:

mixing and stirring the phenolic resin emulsion, the mica powder and the hollow floating beads, adding water in the stirring process, stirring at the speed of 200-500rmp, and stirring for 2-5 min;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 10-20min, adding auxiliary materials during the time interval, stirring at the stirring speed of 400-800rmp, and stirring for 3-5 min;

and step three, adding the carboxyl butyronitrile rubber powder, and continuing stirring for 3-9min at the stirring speed of 600-800 rmp.

Technical Field

The invention relates to the technical field of coatings and preparation methods thereof, in particular to an impact sound insulation coating for a reinforced concrete floor and a preparation method thereof.

Background

The noise is the sound which prevents people from normally resting, studying and working and interferes with the sound to be heard. In today's society, noise has been listed as an important pollution. Noise pollution easily causes troubles and harm to the health and daily life of people, causes dysphoria and dysthymia of people and is not beneficial to the physical and mental health of people.

In the advanced development of cities, commercial houses are more and more, and the demand of people on the commercial houses is higher and higher. In commercial houses, due to the low density between buildings, tight connection between floors and low floor thickness, small sounds or vibrations such as walking upstairs, chopping dishes, dragging stools, jumping, chasing, speaking loudly and the like are often serious noise pollution. The building materials of the building are used for sound insulation, so that sound insulation and noise reduction between floors are formed, and the noise pollution of commercial houses can be effectively and fundamentally reduced.

The sound-insulation and shock-absorption coating for the reinforced concrete floor is a sound-insulation and noise-reduction material coated on the inner layer of the floor in the floor forming process, can effectively reduce noise transfer between floors under the conditions of ensuring the thickness of the reinforced concrete floor, ensuring the rigidity of the reinforced concrete floor and reducing the load of the reinforced concrete floor, and provides a quiet and comfortable living environment for people.

However, the existing sound insulation coating for the reinforced concrete floor on the market mainly performs shock absorption and sound insulation based on a large amount of rubber substances, and the water-based sound insulation coating for ground sound insulation and shock absorption disclosed in the chinese patent CN2019112768984 has the main shock absorption and noise reduction components of rubber particles and rubber fibers, and the content of the rubber particles and the rubber fibers reaches more than 12%, so that the coating cost is greatly increased. As another example, chinese patent CN2017112455209 discloses a vibration-damping and sound-insulating coating for floor slabs, which mainly comprises pure acrylate emulsion, polyurethane emulsion, talc powder, light calcium carbonate, silane coupling agent modified cork particles and a thickener, and the vibration-damping and sound-insulating coating does not use rubber materials and has a short surface drying time, but has poor elasticity after drying, poor rebound resilience after vibration damping, and adverse effect on the quality of floor slabs.

Disclosure of Invention

The embodiment of the invention provides a reinforced concrete floor impact sound insulation coating and a preparation method thereof, aiming at solving the problems of high cost and poor quality of the sound insulation coating in the prior art, and the contents of the invention are as follows:

the invention aims to provide an impact sound and sound insulation coating for a reinforced concrete floor slab, which has the technical points that: the paint comprises the following components in parts by weight: 8-15 parts of phenolic resin emulsion, 2-3 parts of titanium dioxide nano powder, 3-4 parts of silicon dioxide nano powder, 10-20 parts of basalt powder, 10-20 parts of hollow floating beads, 3-5 parts of mica powder, 1-5 parts of carboxyl butyronitrile rubber powder, 30-35 parts of water and 0.6-2 parts of auxiliary materials.

In some embodiments of the present invention, the phenolic resin emulsion in the formula system of the impact sound and sound insulation coating for reinforced concrete floor slabs is prepared by mixing 80 to 90 parts by weight of phenolic resin nanoparticles, 10 to 20 parts by weight of solvent and 0.1 to 0.4 part by weight of emulsifier.

In some embodiments of the present invention, the titanium dioxide nanopowder in the formula system of the impact sound and sound insulation coating for a reinforced concrete floor slab is at least one of rutile type titanium dioxide nanopowder and anatase type titanium dioxide nanopowder.

In some embodiments of the present invention, the median particle diameter of the hollow floating beads in the formula system of the impact sound and sound insulation coating for reinforced concrete floor slabs is 3 to 8 μm.

In some embodiments of the present invention, the median particle size of the carboxyl nitrile rubber powder in the formula system of the impact sound and sound insulation coating for reinforced concrete floors is 200-.

In some embodiments of the present invention, the median particle diameter of the silica nanopowder in the formula system of the impact sound and sound insulation coating for reinforced concrete floor slab is 50-500 nm.

In some embodiments of the present invention, the mica powder in the formulation system of the impact sound and sound insulation coating for reinforced concrete floor slab has a median particle size of 20 to 40 μm.

In some embodiments of the present invention, the medium particle size of the basalt powder in the above reinforced concrete floor impact sound insulation coating formula system is 200-.

The second purpose of the invention is to provide a preparation method of the reinforced concrete floor impact sound insulation coating, which has the technical points that: the method comprises the following steps:

mixing and stirring the phenolic resin emulsion, the mica powder and the hollow floating beads, adding water in the stirring process, stirring at the speed of 200-500rmp, and stirring for 2-5 min;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 10-20min, adding auxiliary materials during the time interval, stirring at the stirring speed of 400-800rmp, and stirring for 3-5 min;

and step three, adding the carboxyl butyronitrile rubber powder, and continuing stirring for 3-9min at the stirring speed of 600-800 rmp.

The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:

the invention provides a reinforced concrete floor impact sound insulation coating and a preparation method thereof, the reinforced concrete floor impact sound insulation coating has a sound insulation effect by using phenolic resin emulsion, and hollow floating beads, mica powder, basalt powder and the like are used in a compatible manner, so that the coating can absorb noise and has better sound insulation and noise reduction functions; moreover, the hollow floating bead is thin and hollow in wall and has good shock absorption effect, and is compatible with mica powder, basalt powder, carboxyl nitrile rubber powder, titanium dioxide nano powder and silicon dioxide nano powder for use, so that noise pollution caused by vibration is reduced, and the impact sound and sound insulation coating for the reinforced concrete floor slab has double sound insulation effect.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The impact sound and sound insulation coating for the reinforced concrete floor slab comprises the following components: 11kg of phenolic resin emulsion, 2.5kg of titanium dioxide nano powder, 3.5kg of silicon dioxide nano powder, 15kg of basalt powder, 15kg of hollow floating beads, 4kg of mica powder, 3kg of carboxyl butadiene-acrylonitrile rubber powder, 32kg of water and 1kg of auxiliary materials.

The phenolic resin emulsion in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is prepared by mixing 85kg of phenolic resin nanoparticles, 15kg of solvent and 0.25kg of emulsifier.

Wherein, the titanium dioxide nano powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is rutile titanium dioxide nano powder.

Wherein the median particle diameter of the hollow floating beads in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 5.5 mu m.

Wherein, the median particle diameter of the carboxyl butadiene-acrylonitrile rubber powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 300 mu m.

Wherein, the median particle diameter of the silicon dioxide nanometer powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 250 nm.

Wherein the median particle diameter of the mica powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 30 mu m.

Wherein the medium particle size of the basalt powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 350 μm.

According to the formula, the preparation method of the reinforced concrete floor impact sound insulation coating comprises the following steps:

mixing and stirring phenolic resin emulsion, mica powder and hollow floating beads, adding water in the stirring process, and stirring for 3.5min at the stirring speed of 350 rmp;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 15min, adding auxiliary materials during the time interval, stirring at the stirring speed of 600rmp for 4 min;

and step three, adding carboxyl nitrile rubber powder, and continuing stirring for 6min at the stirring speed of 700rmp to obtain the impact sound and sound insulation coating for the reinforced concrete floor slab.

Part 7 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.7-2005: the detection method of the site measurement of floor impact sound insulation measures the sound insulation coating for the reinforced concrete floor to be inspected. And the impact sound insulation performance of the reinforced concrete floor is judged according to the basis of GB50118-2010 civil construction sound insulation design specifications, so that the impact sound insulation performance of the reinforced concrete floor measured in the embodiment meets the impact sound insulation standard requirement (the weighted standard impact sound pressure level is less than or equal to 75dB) of the reinforced concrete floor between living rooms of the residential buildings in the GB50118-2010 civil construction sound insulation design specifications.

Example 2

The impact sound and sound insulation coating for the reinforced concrete floor slab comprises the following components: 8kg of phenolic resin emulsion, 2kg of titanium dioxide nano powder, 3kg of silicon dioxide nano powder, 10kg of basalt powder, 10kg of hollow floating beads, 3kg of mica powder, 1kg of carboxyl butyronitrile rubber powder, 30kg of water and 0.6kg of auxiliary materials.

The phenolic resin emulsion in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is prepared by mixing 80kg of phenolic resin nanoparticles, 10kg of solvent and 0.1kg of emulsifier.

Wherein, the titanium dioxide nano powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is anatase titanium dioxide nano powder.

Wherein the median particle diameter of the hollow floating beads in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 3 mu m.

Wherein, the median particle diameter of the carboxyl butadiene-acrylonitrile rubber powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 200 mu m.

Wherein, the median particle diameter of the silicon dioxide nanometer powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 50 nm.

Wherein the median particle diameter of the mica powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 20 microns.

Wherein the medium particle size of the basalt powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 200 mu m.

According to the formula, the preparation method of the reinforced concrete floor impact sound insulation coating comprises the following steps:

mixing and stirring phenolic resin emulsion, mica powder and hollow floating beads, adding water in the stirring process, and stirring for 2min at the stirring speed of 200 rmp;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 10min, adding auxiliary materials during the time interval, stirring at the stirring speed of 400rmp for 3 min;

and step three, adding carboxyl nitrile rubber powder, continuing stirring for 3min at the stirring speed of 600rmp to obtain the impact sound and sound insulation coating for the reinforced concrete floor slab.

Part 7 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.7-2005: the detection method of the site measurement of floor impact sound insulation measures the sound insulation coating for the reinforced concrete floor to be inspected. And the impact sound insulation performance of the reinforced concrete floor is judged according to the basis of GB50118-2010 civil construction sound insulation design specifications, so that the impact sound insulation performance of the reinforced concrete floor measured in the embodiment meets the impact sound insulation standard requirement (the weighted standard impact sound pressure level is less than or equal to 75dB) of the reinforced concrete floor between living rooms of the residential buildings in the GB50118-2010 civil construction sound insulation design specifications.

Example 3

The impact sound and sound insulation coating for the reinforced concrete floor slab comprises the following components: 15kg of phenolic resin emulsion, 3kg of titanium dioxide nano powder, 4kg of silicon dioxide nano powder, 20kg of basalt powder, 20kg of hollow floating beads, 5kg of mica powder, 5kg of carboxyl butyronitrile rubber powder, 35kg of water and 2kg of auxiliary materials.

The phenolic resin emulsion in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is prepared by mixing 90kg of phenolic resin nanoparticles, 20kg of solvent and 0.4kg of emulsifier.

The titanium dioxide nano powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is a mixture of rutile titanium dioxide nano powder and anatase titanium dioxide nano powder, wherein the weight ratio of the rutile titanium dioxide nano powder to the anatase titanium dioxide nano powder is 1: 1.

Wherein the median particle diameter of the hollow floating beads in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 8 mu m.

Wherein, the median particle diameter of the carboxyl butadiene-acrylonitrile rubber powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 400 mu m.

Wherein, the median particle diameter of the silicon dioxide nanometer powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 500 nm.

Wherein the median particle diameter of the mica powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 40 mu m.

Wherein the medium particle size of the basalt powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 500 mu m.

According to the formula, the preparation method of the reinforced concrete floor impact sound insulation coating comprises the following steps:

mixing and stirring phenolic resin emulsion, mica powder and hollow floating beads, adding water in the stirring process, and stirring for 5min at the stirring speed of 500 rmp;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 20min, adding auxiliary materials during the period, stirring at the stirring speed of 800rmp for 5 min;

and step three, adding carboxyl nitrile rubber powder, and continuing stirring for 9min at a stirring speed of 800rmp to obtain the impact sound and sound insulation coating for the reinforced concrete floor slab.

Part 7 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.7-2005: the detection method of the site measurement of floor impact sound insulation measures the sound insulation coating for the reinforced concrete floor to be inspected. And the impact sound insulation performance of the reinforced concrete floor is judged according to the basis of GB50118-2010 civil construction sound insulation design specifications, so that the impact sound insulation performance of the reinforced concrete floor measured in the embodiment meets the impact sound insulation standard requirement (the weighted standard impact sound pressure level is less than or equal to 75dB) of the reinforced concrete floor between living rooms of the residential buildings in the GB50118-2010 civil construction sound insulation design specifications.

Example 4

The impact sound and sound insulation coating for the reinforced concrete floor slab comprises the following components: 10kg of phenolic resin emulsion, 2kg of titanium dioxide nano powder, 3kg of silicon dioxide nano powder, 12kg of basalt powder, 12kg of hollow floating beads, 3.5kg of mica powder, 2kg of carboxyl butyronitrile rubber powder, 32kg of water and 1.5kg of auxiliary materials.

The phenolic resin emulsion in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is prepared by mixing 82kg of phenolic resin nanoparticles, 12kg of solvent and 0.2kg of emulsifier.

The titanium dioxide nano powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is a mixture of rutile titanium dioxide nano powder and anatase titanium dioxide nano powder, wherein the weight ratio of the rutile titanium dioxide nano powder to the anatase titanium dioxide nano powder is 1: 3.

Wherein the median particle diameter of the hollow floating beads in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 4 mu m.

Wherein, the median particle diameter of the carboxyl butadiene-acrylonitrile rubber powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 350 μm.

Wherein, the median particle diameter of the silicon dioxide nanometer powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 400 nm.

Wherein the median particle size of the mica powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 25 mu m.

Wherein the medium particle size of the basalt powder in the formula system of the impact sound and sound insulation coating for the reinforced concrete floor slab is 400 mu m.

According to the formula, the preparation method of the reinforced concrete floor impact sound insulation coating comprises the following steps:

mixing and stirring phenolic resin emulsion, mica powder and hollow floating beads, adding water in the stirring process, and stirring for 3min at the stirring speed of 400 rmp;

sequentially adding titanium dioxide nano powder, silicon dioxide nano powder and basalt powder at the time interval of 18min, adding auxiliary materials during the period, stirring at the stirring speed of 600rmp for 4 min;

and step three, adding carboxyl nitrile rubber powder, continuing stirring for 8min at the stirring speed of 700rmp to obtain the impact sound and sound insulation coating for the reinforced concrete floor slab.

Part 7 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.7-2005: the detection method of the site measurement of floor impact sound insulation measures the sound insulation coating for the reinforced concrete floor to be inspected. And the impact sound insulation performance of the reinforced concrete floor is judged according to the basis of GB50118-2010 civil construction sound insulation design specifications, so that the impact sound insulation performance of the reinforced concrete floor measured in the embodiment meets the impact sound insulation standard requirement (the weighted standard impact sound pressure level is less than or equal to 75dB) of the reinforced concrete floor between living rooms of the residential buildings in the GB50118-2010 civil construction sound insulation design specifications.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.