CN110642584B

CN110642584B - Light sound-insulation high-elasticity daub and preparation method thereof

Info

Publication number: CN110642584B
Application number: CN201911048217.9A
Authority: CN
Inventors: 张福恒; 张尊杰; 单秀军; 卢相志; 张越
Original assignee: Suzhou Mahayana Environmental Protection New Material Co ltd
Current assignee: Suzhou high tech Dacheng low carbon environmental protection new material development Co.,Ltd.
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2021-12-14
Anticipated expiration: 2039-10-30
Also published as: CN110642584A

Abstract

The invention discloses light sound-insulation high-elasticity daub. The paint comprises the following components in parts by weight: 600 parts of filler 300-. The light sound-insulation high-elasticity daub has the characteristics of high construction efficiency, low labor intensity, good sound insulation and high formaldehyde purification rate; in addition, the invention discloses a preparation method of the light sound-insulation high-elasticity daub. The preparation method of the invention has the advantages of promoting the uniform mixing of the raw materials, accelerating the dissolution of the components, saving the preparation time, along with simple preparation process and low operation requirement.

Description

Light sound-insulation high-elasticity daub and preparation method thereof

Technical Field

The invention relates to the field of daub materials, in particular to light sound-insulation high-elasticity daub and a preparation method thereof.

Background

Along with the rapid development of industry, economic development is quite rapid, the worldwide demand for energy sources is greater and greater, the building energy consumption is particularly large in the increasing total energy consumption, the building energy consumption accounts for about 11-25% of the total energy consumption, and a large amount of data and experiments show that the most effective method is to use heat-insulating energy-saving materials. Meanwhile, with the development of transportation and urban buildings and the increase of population density, the increase of household facilities (sound, air conditioner, television and the like) and the increasing of environmental noise become serious environmental pollution of human society. In general, people have the opportunity to be exposed to different degrees of noise in daily life, hearing loss of different degrees can occur, and the noise can affect the health of heart blood vessels, the quality of sleep and even the development of fetuses.

At present, a Chinese utility model patent with publication number CN208415581U discloses a gypsum-based sound insulation wall, which comprises a gypsum base layer, a sound insulation layer and a decorative layer; the surface of the gypsum base layer is sequentially provided with a sound insulation layer and a decorative layer; the gypsum base layer is internally provided with a reinforcing piece. The gypsum-based sound insulation wall body provided by the utility model has the advantages that the gypsum base layer is used for supporting and bearing buildings, the reinforcing piece in the gypsum base layer is used for enhancing the strength of the gypsum base layer, and in addition, the gypsum base layer also has the sound insulation effect; the sound insulation layer is used for increasing the sound insulation effect of the gypsum-based sound insulation wall; the decorative layer is used for decorating the gypsum-based sound insulation wall body and plays a role in beautifying. Adopt the utility model provides a gypsum base sound insulation wall body, wall body intensity is high, give sound insulation effectual, pleasing to the eye.

However, the gypsum-based sound insulation wall has the following defects in the actual production and use process:

(1) the preparation process is long: the preparation process of the gypsum-based sound insulation wall body is divided into three parts, firstly, a gypsum base layer is built on the wall, then the gypsum solidification is carried out for a period of time, the preparation of the sound insulation layer is carried out on the surface of the gypsum base layer, and finally, the one layer is sprayed to beautify the decorative layer of the wall body after the airing for a period of time. The preparation process has the defects of complex preparation process and long time;

(2) poor sound insulation performance: the sound insulation rate of the gypsum-based sound insulation wall body is about 80%, so that the market demand can not be met, and the sound insulation rate of the gypsum-based sound insulation wall body needs to be improved;

(3) the gypsum-based sound insulation wall body cannot degrade formaldehyde, so that potential safety hazards are brought to users.

Therefore, how to prepare a sound insulation material which has short construction time, good sound insulation and can degrade formaldehyde is a problem to be solved in the industry.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the light sound-insulation high-elasticity daub which has the advantages of high construction efficiency, low labor intensity, good sound insulation and high formaldehyde purification rate.

In order to achieve the first object, the invention provides the following technical scheme: the light sound-insulation high-elasticity daub comprises the following components in parts by weight:

600 parts of filler 300-.

By adopting the technical scheme, the method at least has the following advantages:

1. the light sound-insulation high-elasticity daub prepared by the above materials has the advantages of high construction efficiency, low labor intensity, good sound insulation and high formaldehyde purification rate;

2. the filler can improve the properties of the flexural strength, the impact resistance and the bonding strength of the daub;

3. the sulfur-free odorless elastic thermoplastic rubber particles are used as a high-elasticity material, so that the daub has excellent elasticity and excellent compression damping performance, and the impact absorption rate is better; the sulfur-free odorless elastic thermoplastic rubber particles are prepared from a rubber material, and the rubber has good acid and alkali resistance, corrosion resistance and excellent chemical stability, so that the corrosion resistance of the daub is improved, and the service life of the daub is prolonged; the sulfur-free odorless elastic thermoplastic rubber particles have the performance of reducing sound, so that the sound insulation rate of the daub is improved, and the daub has the performance of reducing sound and noise;

4. the hollow glass beads are used as heat insulation materials, so that the clay paste has excellent heat insulation effect, and meanwhile, the hollow glass beads and the sulfur-free odorless elastic thermoplastic rubber particles also have sound insulation effect and good sound insulation effect. The two materials have excellent fluidity, and can be uniformly dispersed by low-speed stirring when being stirred into slurry;

5. compared with expanded perlite used in the prior art, the hollow glass microspheres are not easy to be crushed due to stirring collision in the mixing process, and the reduction of the heat insulation performance of the daub due to improper mixing is reduced;

6. the water-retaining agent has the function of improving the construction performance of the heat-insulating material;

7. the redispersible latex powder can form a polymer film in the curing process, and a spatial three-dimensional network structure formed by the long molecular chains can coat the hollow glass beads and the sulfur-free odorless elastic thermoplastic rubber particles, so that the bonding strength is improved, and the shrinkage rate is reduced; meanwhile, the slurry system has good dispersion stability, is not easy to delaminate or separate water, and the redispersible latex powder also has the function of adjusting the consistency and the water retention of the slurry;

8. the water repellent has good pulping performance, so that the pulp is full and smooth; meanwhile, the water repellent is matched with the water retention agent, so that the workability of the clay cement can be improved in a synergistic manner;

9. the anion additive has the functions of continuously releasing anions, removing harmful gases and peculiar smell of formaldehyde, ammonia and benzene, resisting and inhibiting bacteria, and is safe and environment-friendly;

10. the nanometer titanium dioxide is white loose powder, has strong ultraviolet shielding effect and good dispersibility and weather resistance, and simultaneously improves the filling density of the filler volume in the daub, reduces the capillary action, improves the shielding effect of the daub on corrosive media and effectively improves the corrosion resistance of the daub when the daub is prepared by taking the nanometer material as an additive.

Furthermore, the filler is high-strength gypsum, the flexural strength of the high-strength gypsum is more than or equal to 6MPa, and the retarder is a gypsum retarder.

By adopting the technical scheme, the white high-strength gypsum is used as a setting material and is mixed with the redispersible latex powder, so that the slurry has high bonding fastness, can be firmly attached to a construction base layer after being sprayed, is not easy to retract after being cured, and is not easy to crack, hole, bubble and other problems; meanwhile, the other types of gypsum and the high-strength gypsum used in the invention have performance difference in the aspects of compressive strength, setting time and the like, and have no applicability, so that the high-strength gypsum of the invention cannot be replaced by common semi-hydrated gypsum, desulfurized gypsum, phosphogypsum and the like. After construction, the mud glue prepared from gypsum with low breaking strength has poor strength and compactness, so that high-strength gypsum with the breaking strength of more than or equal to 6MPa is preferably used. The gypsum retarder is used for reducing the setting speed of gypsum, and is convenient for workers to construct.

Further, the filler is portland cement, and the retarder is a cement retarder.

By adopting the technical scheme, the Portland cement is used as a setting material and is mixed with the redispersible latex powder, so that the bonding fastness of the slurry is high, the slurry can be firmly attached to a construction base layer after being sprayed, and the slurry is not easy to retract after being cured and is not easy to crack, hole, bubble and other problems; meanwhile, the Portland cement has better compressive strength and wear resistance, so the Portland cement is selected for improving the strength of the mortar. The cement retarder can delay the hydration reaction of cement, thus prolonging the setting time of cement, leading the freshly mixed cement to have longer time for keeping plasticity, being convenient for pouring and improving the construction efficiency. Therefore, the construction time can be prolonged.

Further, the true density of the hollow glass beads is 10-15kg/m³。

By adopting the technical scheme, the density of the hollow glass beads is higher than 15kg/m³In time, the density of the constructed mud daub is increased, and the heat preservation, heat insulation and sound insulation effects of the mud daub are reduced; and the true density is less than 10kg/m³The hollow glass beads are easy to be broken in the stirring process, so that the heat preservation and insulation effects of the hollow glass beads are influenced, the hollow glass beads are easy to float and are not easy to be uniformly stirred when being stirred by adding water due to low density, and the hollow glass beads are easy to float on the surface of the slurry after being sprayed, so that the doping density is 10-15kg/m³The hollow glass beads have the best effect.

Further, the particle size of the sulfur-free odorless elastic thermoplastic rubber particles is 20 to 80 mesh.

By adopting the technical scheme, the sulfur-free odorless elastic thermoplastic rubber particles with the particle size larger than 80 meshes are easy to collide with each other in the mixing process, so that the heat preservation and heat insulation performance of the sulfur-free odorless elastic thermoplastic rubber particles is influenced; the sulfur-free odorless elastic thermoplastic rubber particles with the particle size of less than 20 meshes are easy to generate micro aggregation during stirring and are not easy to stir uniformly, so the sulfur-free odorless elastic thermoplastic rubber particles with the particle size of 20-80 meshes are preferably added.

Further, the water retaining agent is hydroxypropyl methyl cellulose ether, and the viscosity is 100000mPa & s.

By adopting the technical scheme, the hydroxypropyl methyl cellulose ether with low viscosity has water retention, so that the effect of inhibiting the floating and layering phenomena of the hollow glass microspheres and the sulfur-free odorless elastic thermoplastic rubber particles is poor, and the viscosity of the hydroxypropyl methyl cellulose ether is preferably 100000 mPas. The slurry prepared from the hydroxypropyl methyl cellulose ether with the viscosity has excellent and uniform heat insulation performance and excellent application property.

Further, the anion additive is HB-TL anion additive.

By adopting the technical scheme, the HB-TL negative ion additive has the functions of continuously releasing negative ions, removing harmful gases and peculiar smell of formaldehyde, ammonia and benzene, and resisting and inhibiting bacteria due to the existence of dipole moment of the HB-TL negative ion additive 1; 2. the HB-TL anion additive has the function of permanently releasing anions, can neutralize the electropositivity of electromagnetic waves, absorbs the electromagnetic waves, is converted into far infrared rays for emission on one hand, and can stimulate the additive to emit more anions on the other hand, thereby having the radiation effect of resisting the electromagnetic waves. Therefore, the HB-TL negative ion additive endows the daub with the performances of antibiosis, bacteriostasis and electromagnetic wave resistance.

The second purpose of the invention is to provide a preparation method of the light sound-insulation high-elasticity daub, which has the advantages of promoting the uniform mixing of the components of the raw materials, accelerating the dissolution of the components, saving the preparation time, along with simple preparation process and low operation requirement.

In order to achieve the second object, the invention provides the following technical scheme: the method comprises the following steps:

s1: adding redispersible latex powder, a water repellent, nano titanium dioxide and an anion additive into a stirrer, and uniformly stirring;

s2: then adding the filler and the water-retaining agent into a stirrer, and stirring uniformly;

s3: then, adding the sulfur-free odorless elastic thermoplastic rubber particles, the hollow glass beads and the hollow glass beads into a stirrer, and uniformly stirring;

s4: finally, adding water, and uniformly stirring to obtain the light sound-insulation high-elasticity daub.

By adopting the technical scheme, through stirring, on one hand, the uniform mixing of all the components of the raw materials is promoted, on the other hand, the dissolution among all the components is accelerated, the preparation time is saved, the preparation process is simple, and the operation requirement is low;

1. firstly, the redispersible latex powder, the water repellent, the nano titanium dioxide and the anion additive are fully mixed, so that the redispersible latex powder is more easily and uniformly dispersed in an anhydrous state without high-speed stirring;

2. then, sequentially adding the filler and the water-retaining agent for mixing, then adding the sulfur-free odorless elastic thermoplastic rubber particles, the hollow glass microspheres and the retarder for uniformly mixing, and uniformly mixing the powder and the granules; under the water-free state, materials with different particle sizes and densities can be mixed uniformly;

3. finally, water is added to mix and prepare slurry with proper viscosity, the water-retaining agent, the water repellent and the redispersible latex powder start to play a role after the water is added, and the long chain of the molecule forms a three-dimensional net structure or the gel performance of the molecule hinders the layered segregation of the granules, so that the hollow glass microspheres and the sulfur-free odorless elastic thermoplastic rubber particles keep the uniformly dispersed state and are not easy to delaminate and segregate;

the preparation method provided by the invention has the advantages that the process steps are simple, cracking or damage to the hollow glass beads and the sulfur-free odorless elastic thermoplastic rubber particles caused by mixing can be reduced to the greatest extent in the preparation process, and the mixed daub is uniform in heat insulation performance, high in stability and suitable for construction.

In conclusion, the invention has the following beneficial effects:

firstly, the light sound-insulation high-elasticity daub prepared by the method has the advantages of high construction efficiency, low labor intensity, good sound insulation and high formaldehyde purification rate;

secondly, the preparation method of the light sound-insulation high-elasticity daub promotes the uniform mixing of the components of the raw materials on the one hand and accelerates the dissolution of the components on the other hand by stirring, saves the preparation time, has simple preparation process and low operation requirement, can reduce the cracking or damage caused by stirring to the hollow glass microspheres and the sulfur-free odorless elastic thermoplastic rubber particles to the maximum extent, and has uniform heat-insulation performance and high stability of the stirred mortar.

Detailed Description

The present invention will be described in further detail with reference to examples.

The raw material sources are as follows: see Table 1 below

TABLE 1 sources of the components of the inorganic anti-graffiti environmental protection coating

Examples 1-8 all relate to a lightweight insulating high elasticity cement having the following composition levels in table 2 below:

table 2.

Examples 1 to 4:

a preparation method of light sound-insulation high-elasticity daub comprises the following steps:

(1) preparing materials: high-strength gypsum, sulfur-free odorless elastic thermoplastic rubber particles, an HB-TL negative ion additive, hollow glass microspheres, redispersible latex, nano titanium dioxide, a gypsum retarder, hydroxypropyl methyl cellulose ether, an organosilicon water repellent and water are weighed according to the proportion in Table 1. Wherein the high-strength gypsum is high-strength gypsum with the breaking strength of more than or equal to 6 MPa; the hollow glass beads have a true density of 0.5g/cm³The particle size is 70 mu m; nano titanium dioxide with the particle size of 30 nm; the bulk density of the sulfur-free odor-removing elastic thermoplastic rubber particles is 875kg/m³The grain diameter is 40 meshes; selecting viscosity of hydroxypropyl methyl cellulose ether to be 100000mPa & s;

(2) preparation:

s1: adding redispersible latex powder, an organic silicon water repellent, nano titanium dioxide and an HB-TL negative ion additive into a stirrer, and uniformly stirring;

s2: then adding the high-strength gypsum and the hydroxypropyl methyl cellulose ether into a stirrer, and uniformly stirring;

s3: then, adding the sulfur-free odorless elastic thermoplastic rubber particles and the hollow glass beads into a stirrer, and uniformly stirring;

s4: finally, adding water, and uniformly stirring to obtain the light sound-insulating high-elasticity daub.

Examples 5 to 8:

(1) preparing materials: the portland cement, the sulfur-free odorless elastic thermoplastic rubber particles, the HB-TL negative ion additive, the hollow glass microspheres, the redispersible latex, the nano titanium dioxide, the gypsum retarder, the hydroxypropyl methyl cellulose ether, the organosilicon water repellent and the water are weighed according to the proportion in the table 1. Wherein the high-strength gypsum is high-strength gypsum with the breaking strength of more than or equal to 6 MPa; the hollow glass beads have a true density of 0.5g/cm³The particle size is 70 mu m; nano titanium dioxide with the particle size of 30 nm; the bulk density of the sulfur-free odor-removing elastic thermoplastic rubber particles is 875kg/m³The grain diameter is 40 meshes; selecting viscosity of hydroxypropyl methyl cellulose ether to be 100000mPa & s;

(2) preparation:

s2: then adding the silicate cement and the hydroxypropyl methyl cellulose ether into a stirrer, and uniformly stirring;

Comparative example 1:

based on example 1, the only difference is that: the HB-TL negative ion additive was not included, as shown in Table 2 below.

Comparative example 2:

based on example 5, the only difference is that: the HB-TL negative ion additive was not included, as shown in Table 2 below.

Comparative example 3:

based on example 1, the only difference is that: the nano titanium dioxide is not contained, and the concrete is shown in the following table 2.

Comparative example 4:

based on example 5, the only difference is that: the nano titanium dioxide is not contained, and the concrete is shown in the following table 2.

Comparative example 5:

based on example 1, the only difference is that: the HB-TL negative ion additive and the nano titanium dioxide are not contained, and the details are shown in the following table 2.

Comparative example 6:

based on example 5, the only difference is that: the HB-TL negative ion additive and the nano titanium dioxide are not contained, and the details are shown in the following table 2.

Comparative examples 1-6 each relate to a lightweight insulating high elasticity cement having the following composition content as shown in table 3 below:

table 3.

Examples 9-12 differ from each other in the presence of different selected hollow glass microspheres and sulfur-free odorless elastomeric thermoplastic rubber particles, as shown in table 4 below,

embodiments 9-12 relate to a lightweight acoustic resilient daub comprising, by weight:

(1) the formula is as follows: 300kg of high-strength gypsum, 400kg of sulfur-free odorless elastic thermoplastic rubber particles, 65kg of hollow glass microspheres, 60kg of redispersible latex powder, 30kg of nano titanium dioxide, 3kg of gypsum retarder, 2kg of hydroxypropyl methyl cellulose ether, 3kg of organic silicon water repellent and 410kg of water. Wherein the high-strength gypsum is high-strength gypsum with the breaking strength of more than or equal to 6 MPa; the viscosity of the hydroxypropyl methyl cellulose ether is selected to be 10000 mPa.s;

(2) preparation:

Examples 13-16 differ from each other in the presence of selected hollow glass microspheres and sulfur-free, odorless elastomeric thermoplastic rubber particles as shown in table 5 below:

table 5.

Embodiments 13-16 relate to a lightweight acoustic resilient daub comprising, by weight:

(1) the formula is as follows: 300kg of Portland cement, 400kg of sulfur-free odorless elastic thermoplastic rubber particles, 65kg of hollow glass microspheres, 60kg of redispersible latex powder, 30kg of nano titanium dioxide, 3kg of gypsum retarder, 2kg of hydroxypropyl methyl cellulose ether, 3kg of organic silicon water repellent and 410kg of water. Wherein the high-strength gypsum is high-strength gypsum with the breaking strength of more than or equal to 6 MPa; the viscosity of the hydroxypropyl methyl cellulose ether is selected to be 10000 mPa.s;

(2) preparation:

Performance test

The comparative examples 1 to 3 were prepared from examples 10 to 12 having application publication No. CN106316320A and entitled "A moisture-resistant Gypsum composite thermal insulation Material and method for producing the same"; the lightweight soundproof high elastic anti-aldehyde mastics prepared by the preparation methods of examples 1 to 20 and comparative examples 1 to 4 were used as samples, respectively.

And (3) experimental detection: determining the compressive strength of the mortar material by referring to JGJ-90 'building mortar basic performance experimental method'; the thermal conductivity was measured with reference to JIS A1412-1977; the volume water absorption of the cement material is determined by referring to DG/TJ 08-2088-2011.

The impact absorption test refers to DB/32/T1213-2008 'sports field composite surface layer material impact absorption determination' to determine the impact absorption of the daub.

The experiment of the sound insulation effect refers to GB/T19889.7-2005 part 4 of Acoustic building and construction component Sound insulation measurement: in-situ measurement of the acoustic insulation of air between rooms.

The photocatalysis effect adopts a formaldehyde decomposition method, a coated sample plate is placed in the box body, formaldehyde with the concentration of 20mg/m3 is filled, the formaldehyde concentration in the box body is measured after 8 hours of illumination, and the degradation rate is calculated.

The performance of samples 1-24 and comparative examples 1-3 were tested according to DB31/T895-2015 technical Specification for reflective insulation coating and desulfurized gypsum lightweight aggregate mortar thermal insulation System, and the test results are shown in Table 6 below:

as can be seen from the data in table 6 above,

1. the light sound-insulation high-elasticity cement has the heat conductivity coefficient as low as 0.025W/(m.K), the solar reflectance of more than 55 percent and good reflective and heat-insulating properties. The impact absorption is 20-30%, and the prepared daub has good resilience; the sound insulation rate is more than 60%, and the prepared daub has a good sound insulation effect. The compressive strength, the heat conductivity coefficient, the solar reflectance, the impact absorption and the sound insulation rate of the light sound-insulating high-elasticity daub are all equivalent to or superior to those of the comparative examples 1-3.

2. When the particle sizes of the hollow glass beads are consistent, the true densities of the hollow glass beads are different, and the larger the true density is, the poorer the heat insulation performance of the daub is; and the vacuum density of the hollow glass micro-beads is more than 0.8g/cm³When the mortar is used, the heat conductivity coefficient of the mortar is obviously increased, and the heat insulation performance is poor; the vacuum density of the hollow glass beads is less than 0.4g/cm³When the mortar is used, the heat conductivity coefficient of the mortar is slightly increased, namely, the hollow glass beads with low true density are crushed to a certain degree in the process of mixing the mortar, so that the heat conductivity coefficient is slightly increased, and the heat insulation performance is poor. Therefore, the selected true density is 0.4-0.6g/cm³The hollow glass beads of (3) are most suitable.

3. When the vacuum glass beads have the same true density and particle size and the stacking density of the sulfur-free odorless elastic thermoplastic rubber particles is consistent, the particle size is larger than 80 meshes, the heat conductivity coefficient of the mortar is increased, and the heat insulation performance is reduced. During the process of mixing mortar, the hollow glass beads with large particle size and low true density are easy to crack or even break due to collision, so that the heat conductivity coefficient is increased. When the particle size is less than 20 meshes, the heat conductivity coefficient is not obviously influenced, but the difficulty of mixing mortar is increased due to the excessively small particle size of the hollow glass beads. Therefore, it is most suitable to select hollow glass beads having a particle size in the range of 20 to 80 mesh.

4. The photocatalytic degradation rates of the light sound-insulation high-elasticity cement of the invention in the embodiments 1-16 all reach 90%, and according to the comparative examples 1-6, the HB-TL negative ion additive and the nano titanium dioxide have good formaldehyde purification performance, so that the formaldehyde purification performance of the cement is improved.

The volume water absorption of comparative examples 1 to 3 and samples 1 to 6 was measured with reference to DG/TJ08-2088-

As can be seen from the experimental data in Table 7, the lightweight soundproof highly elastic daub of examples 1 to 8 has better water-resistant effect than the comparative examples 1 to 3 in terms of volume water absorption.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The light sound-insulation high-elasticity daub is characterized by comprising the following components in parts by weight:

600 parts of filler, 800 parts of sulfur-free odorless elastic thermoplastic rubber particle, 125 parts of HB-TL negative ion additive, 250 parts of hollow glass microsphere, 60-120 parts of redispersible latex powder, 30-60 parts of nano titanium dioxide, 3-6 parts of retarder, 2-4 parts of hydroxypropyl methyl cellulose ether, 3-6 parts of water repellent and 800 parts of water 400;

the particle size of the sulfur-free odorless elastic thermoplastic rubber particles is 20-80 meshes;

the viscosity of the hydroxypropyl methyl cellulose ether is 100000 mPa.s;

the vacuum density of the hollow glass bead is 0.4-0.6g/cm³。

2. The light sound-insulation high-elasticity cement as claimed in claim 1, wherein the filler is high-strength gypsum, the flexural strength of the high-strength gypsum is not less than 6MPa, and the retarder is a gypsum retarder.

3. The lightweight acoustic insulation high elasticity cement of claim 1, wherein the filler is portland cement and the retarder is cement buffer.

4. The method for preparing the light-weight sound-insulation high-elasticity daub as claimed in any one of claims 1 to 3, which is characterized by comprising the following steps:

s3: then, adding the sulfur-free odorless elastic thermoplastic rubber particles, the hollow glass microspheres and the retarder into a stirrer, and uniformly stirring;