阅读说明：本技术 一种降噪隔音内墙腻子膏及其制备方法 (Noise-reducing sound-insulating interior wall putty paste and preparation method thereof ) 是由 韩哲兵 林朋 林昌庆 叶正夫 黄益洲 李生辉 于 2021-10-12 设计创作，主要内容包括：本发明涉及一种降噪隔音内墙腻子膏及其制备方法,由以下按重量份的原料组成：水、PH调节剂、羟乙基纤维素、防腐剂、润湿分散剂、消泡剂、云母粉、滑石粉、碳酸钙、乳液、中空玻璃微珠、硅酸铝纤维棉、抗冻剂、增稠剂。本发明的腻子膏除了有易批刮、抗裂好以外,同时还具有降噪隔音的功能,提供良好的居住环境。(The invention relates to a noise-reducing and sound-insulating interior wall putty paste and a preparation method thereof, wherein the interior wall putty paste is prepared from the following raw materials in parts by weight: water, a pH regulator, hydroxyethyl cellulose, a preservative, a wetting dispersant, a defoaming agent, mica powder, talcum powder, calcium carbonate, emulsion, hollow glass microspheres, aluminum silicate cellucotton, an antifreeze agent and a thickening agent. The putty paste has the advantages of easy scraping and good crack resistance, and also has the functions of noise reduction and sound insulation, thereby providing a good living environment.)

1. The utility model provides a noise reduction sound insulation interior wall putty cream coating which characterized in that: the composition comprises the following raw materials in parts by weight:

2. the noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the pH regulator is 2-amino-2-methyl-1-propanol.

3. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the hydroxyethyl cellulose is nonionic water-soluble cellulose ether.

4. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the preservative is one or a mixture of 5-chloro-2-methyl-4-isothiazoline-3-ketone or 2-methyl-4-isothiazoline-3-ketone in any proportion; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent.

5. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the mica powder is sericite powder; the talcum powder is magnesium silicate mineral talcum family talcum powder; the calcium carbonate is heavy calcium carbonate.

6. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the styrene-acrylic emulsion is modified styrene-acrylic emulsion.

7. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the granularity of the hollow glass beads is 10-250um, and the wall thickness is 1-2 um; the diameter of the aluminum silicate fiber cotton is 1.8-5 μm, the whiteness is 85-93, and the noise reduction coefficient is more than or equal to 0.8.

8. The noise-reducing and sound-insulating interior wall putty paste defined in claim 1 which comprises: the antifreeze agent is a glycerol ethoxylate antifreeze agent; the thickening agent is an associated polyurethane thickening agent.

9. A method for preparing a noise-reducing and sound-insulating interior wall putty paste as set forth in any one of claims 1 to 8, comprising the steps of:

step 1, adding 11.15-14.7 parts of water into a dispersion cylinder, then adding 0.1-0.2 part of PH regulator and 0.5-0.7 part of hydroxyethyl cellulose, and then continuously dispersing for 5-8min at 400r/min under 300-;

step 2, slowly adding 0.2-0.3 part of preservative, 0.35-0.5 part of wetting dispersant and 0.6-0.8 part of defoaming agent, and continuously dispersing for 3-5min at 500r/min of 400-;

step 3, adding 4-7 parts of mica powder, 8-10 parts of talcum powder and 46-52 parts of calcium carbonate, and continuously dispersing for 10-20min at the speed of 900-;

step 4, adding 4-6 parts of hollow glass microspheres, 5-10 parts of aluminum silicate fiber cotton and 7-8.5 parts of styrene-acrylic emulsion at the rotating speed of 500-;

and 5, finally, adding 0.9-1.1 parts of antifreeze agent and 0.2-0.25 part of thickening agent at the rotation speed of 450-.

Technical Field

The invention relates to the field of coatings, in particular to noise-reducing and sound-insulating interior wall putty paste and a preparation method thereof.

Background

With the improvement of the living standard of people, domestic railways and highways are developed more and more, and living houses are mainly multi-storey buildings. People are increasingly polluted by noise from the outside and among neighborhoods in life, and the life and emotion of people are influenced to a great extent. People live in noisy environments for a long time and are prone to emotional instability.

Disclosure of Invention

The noise-reducing and sound-insulating interior wall putty paste can well block sound transmission, achieves noise-reducing and sound-insulating effects and provides a good quiet environment for people.

The invention is realized by the following technical scheme

The noise-reducing and sound-insulating interior wall putty paste consists of the following raw materials in parts by weight:

further, the pH regulator is 2-amino-2-methyl-1-propanol.

Further, the hydroxyethyl cellulose is a non-ionic water-soluble cellulose ether.

Further, the preservative is a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one in any proportion; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent.

Further, the mica powder is sericite; the talcum powder is magnesium silicate mineral talcum family talcum powder; the calcium carbonate is heavy calcium carbonate.

Further, the hollow glass beads are novel ultra-light inorganic non-metal materials with excellent performance and hollow spherical powder, and the particle size is as follows: 10-250um, wall thickness: 1-2 um; the aluminum silicate fiber cotton is inorganic fiber cotton with the fiber diameter smaller than 5UM, and the fiber diameter is as follows: 1.8-5um, whiteness: 85-93, and the noise reduction coefficient is more than or equal to 0.8.

Furthermore, the emulsion is an anionic styrene acrylate copolymer, is a main film forming substance of the coating and provides strength, chalking resistance and the like.

Further, the antifreeze is a glycerol ethoxylate antifreeze; the thickening agent is an associated polyurethane thickening agent.

Step 1, adding 11.15-14.7 parts of water into a dispersion cylinder, sequentially adding 0.1-0.2 part of PH regulator and 0.5-0.7 part of hydroxyethyl cellulose, controlling the rotation speed of the dispersion cylinder at 400r/min, and continuously dispersing for 5-8 min;

step 2, slowly adding 0.2-0.3 part of preservative, 0.35-0.5 part of wetting dispersant and 0.6-0.8 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 400-500r/min, and continuously dispersing for 3-5 min;

step 3, sequentially adding 4-7 parts of mica powder, 8-10 parts of talcum powder and 46-52 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 900-1200r/min, and continuously dispersing for 10-20 min;

step 4, keeping the rotating speed of the dispersion cylinder at 500-;

and 5, reducing the rotating speed of the dispersion cylinder to below 450-500r/min, adding 0.9-1.1 parts of antifreeze agent and 0.2-0.25 part of thickening agent, and continuously dispersing for 5-10min by the dispersion cylinder until the system is a uniform and particle-free white mixture.

The invention has the beneficial effects that: the putty paste has the advantages of easy scraping and good crack resistance, and also has the functions of noise reduction and sound insulation, thereby providing a good living environment.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof.

The noise-reducing and sound-insulating interior wall putty paste consists of the following raw materials in parts by weight:

in this embodiment, the water is deionized water, which serves as a dispersion for dispersing the pigment and filler, and also serves as a carrier for thickening the thickener.

Further, the pH regulator is 2-amino-2-methyl-1-propanol which mainly plays a role in maintaining and regulating the pH value of the whole system.

Further, the hydroxyethyl cellulose is a non-ionic water-soluble cellulose ether, which provides primarily its initial viscosity while providing storage stability for later periods of the coating.

Furthermore, the preservative is a mixture of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone in any proportion, and mainly plays a role in corrosion prevention and sterilization on the coating, so that the long-term storage stability of the coating is ensured; the wetting dispersant is ammonium polyacrylate or sodium polyacrylate, is mainly used for quickly wetting a coating system and is beneficial to uniformly dispersing pigment and filler into the system; the defoaming agent is mineral oil or organic silicon defoaming agent, the generation of bubbles in the proofing process is inhibited, the surface tension of the system is changed, the generated bubbles are eliminated, and the compactness of the product system is improved.

Further, the mica powder is sericite which is mainly used as a pigment and filler for filling, absorbing vibration energy and weakening vibration waves and sound waves; the talcum powder is magnesium silicate mineral talcum group talcum and mainly plays a role in filling and improving the polishing performance; the calcium carbonate is heavy calcium carbonate, is mainly used as pigment and filler, and plays a role in filling and reducing cost.

Furthermore, the hollow glass beads are novel hollow spherical powder ultra-light inorganic non-metal materials with excellent performance, and the particle size is as follows: 10-250um, wall thickness: 1-2 um; sound is transmitted from the glass to the air or from the air to the glass, and the sound insulation effect is achieved through multiple reflections; the aluminum silicate fiber cotton is inorganic fiber cotton with the fiber diameter smaller than 5UM, and the fiber diameter is as follows: 1.8-5um, whiteness: 85-93, sound insulation performance is more than or equal to 0.8, and the sound insulation effect is achieved by utilizing the mechanical vibration resistance and elasticity.

Furthermore, the emulsion is modified styrene-acrylic emulsion, is a main film forming substance of the coating, and provides strength, pulverization resistance and the like.

Furthermore, the antifreeze agent is a glycerol ethoxylate antifreeze agent, so that the storage property of the coating at low temperature is ensured; the thickening agent is an associated polyurethane thickening agent, provides certain leveling property for the coating, and simultaneously changes the viscosity of the product, so that the coating has good application property.

A preparation method of noise-reducing and sound-insulating interior wall putty paste comprises the following steps:

step 1, adding 11.15-14.7 parts of water into a dispersion cylinder, sequentially adding 0.1-0.2 part of PH regulator and 0.5-0.7 part of hydroxyethyl cellulose, controlling the rotation speed of the dispersion cylinder at 400r/min, and continuously dispersing for 5-8 min;

step 2, slowly adding 0.2-0.3 part of preservative, 0.35-0.5 part of wetting dispersant and 0.6-0.8 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 400-500r/min, and continuously dispersing for 3-5 min;

step 3, sequentially adding 4-7 parts of mica powder, 8-10 parts of talcum powder and 46-52 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 900-1200r/min, and continuously dispersing for 10-20 min;

step 4, keeping the rotating speed of the dispersion cylinder at 500-;

and 5, reducing the rotating speed of the dispersion cylinder to below 450-500r/min, adding 0.9-1.1 parts of antifreeze agent and 0.2-0.25 part of thickening agent, and continuously dispersing for 5-10min by the dispersion cylinder until the system is a uniform and particle-free white mixture.

The raw material brands and models for the following examples are as follows:

pH regulators: adopts the modesty AMP-95 which is sold on the market;

hydroxyethyl cellulose: adopts cellulose of 10K of Astera, and is available on the market;

styrene-acrylic emulsion: the emulsion of BLJ800AF, Baolijia, is available on the market;

preservative: KSG 15, a product of Guangdong Dimei Biotechnology Co., Ltd, commercially available;

wetting and dispersing agent: the dispersant adopts SN-5040 of Nopochaceae and the wetting agent adopts Dow CA-2500 which is commercially available;

defoaming agent: corning 334, commercially available;

mica powder: adopting GA-2 of Chuzhou Gerui mining industry Co., Ltd, and being available on the market;

talc powder: the Wuhan Boshi chemical A-90 is sold in the market;

calcium carbonate: adopting Guangfu Jian material refinement Co., Ltd CC-700 which is available on the market;

hollow glass beads: adopts Zhejiang Haiyue New Material company 5019, which is available on the market;

aluminum silicate fiber cotton: SS-RFB available in the market and available in Shandong Yubang energy-saving technology Limited is adopted;

an antifreeze agent: adopting a Jiaxian chemical PPG-1000 antifreeze agent which is sold in the market;

thickening agent: the Rohm and Hass RM2020 polyurethane thickening agent is adopted and is commercially available.

Example 1

The noise-reducing and sound-insulating interior wall putty paste comprises the following specific raw materials in parts by weight:

the manufacturing process comprises the following steps:

(1) adding 14.7 parts of water into a dispersion cylinder, sequentially adding 0.1 part of pH regulator and 0.7 part of hydroxyethyl cellulose, controlling the rotating speed of the dispersion cylinder at 300r/min, and continuously dispersing for 8 min;

(2) slowly adding 0.3 part of preservative, 0.5 part of wetting dispersant and 0.6 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 400r/min, and continuously dispersing for 5 min;

(3) sequentially adding 4 parts of mica powder, 10 parts of talcum powder and 52 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 900r/min, and continuously dispersing for 20 min;

(4) keeping the rotating speed of the dispersion cylinder at 500-;

(5) and reducing the rotating speed of the dispersion cylinder to below 450r/min, adding 0.9 part of antifreeze agent and 0.2 part of thickening agent, and continuously dispersing for 10min in the dispersion cylinder until the system is a uniform and particle-free white mixture.

Example 2

The noise-reducing and sound-insulating interior wall putty paste comprises the following specific raw materials in parts by weight:

the manufacturing process comprises the following steps:

(1) adding 14.13 parts of water into a dispersion cylinder, sequentially adding 0.12 part of pH regulator and 0.6 part of hydroxyethyl cellulose, controlling the rotating speed of the dispersion cylinder at 400r/min, and continuously dispersing for 5 min;

(2) slowly adding 0.25 part of preservative, 0.45 part of wetting dispersant and 0.7 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 500r/min, and continuously dispersing for 3 min;

(3) sequentially adding 5 parts of mica powder, 9 parts of talcum powder and 50 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 1200r/min, and continuously dispersing for 10 min;

(4) slowly adding 5 parts of hollow glass microspheres, 6 parts of aluminum silicate fiber cotton and 7.5 parts of emulsion while maintaining the rotating speed of a dispersion cylinder at 650r/min, and continuously dispersing for 5 min;

(5) and reducing the rotating speed of the dispersion cylinder to be below 500r/min, adding 1 part of antifreeze agent and 0.25 part of thickening agent, and continuously dispersing for 5min in the dispersion cylinder until the system is a uniform and particle-free white mixture.

Example 3

The noise-reducing and sound-insulating interior wall putty paste comprises the following specific raw materials in parts by weight:

the manufacturing process comprises the following steps:

(1) adding 11.7 parts of water into a dispersion cylinder, sequentially adding 0.15 part of pH regulator and 0.55 part of hydroxyethyl cellulose, controlling the rotating speed of the dispersion cylinder at 350r/min, and continuously dispersing for 7 min;

(2) slowly adding 0.2 part of preservative, 0.4 part of wetting dispersant and 0.7 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 450r/min, and continuously dispersing for 4 min;

(3) sequentially adding 6 parts of mica powder, 9 parts of talcum powder and 48 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 1000r/min, and continuously dispersing for 10-20 min;

(4) slowly adding 6 parts of hollow glass microspheres, 8 parts of aluminum silicate fiber cotton and 8 parts of emulsion while keeping the rotating speed of a dispersion cylinder at 600r/min, and continuously dispersing for 7 min;

(5) and reducing the rotating speed of the dispersion cylinder to 470r/min, adding 1.1 parts of antifreeze agent and 0.2 part of thickening agent, and continuously dispersing for 6min by the dispersion cylinder until the system is a uniform white mixture without particles.

Example 4

The noise-reducing and sound-insulating interior wall putty paste comprises the following specific raw materials in parts by weight:

the manufacturing process comprises the following steps:

(1) adding 11.15 parts of water into a dispersion tank, sequentially adding 0.2 part of pH regulator and 0.5 part of hydroxyethyl cellulose, controlling the rotating speed of the dispersion tank at 340r/min, and continuously dispersing for 6 min;

(2) slowly adding 0.2 part of preservative, 0.35 part of wetting dispersant and 0.8 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 450r/min, and continuously dispersing for 4 min;

(3) sequentially adding 7 parts of mica powder, 8 parts of talcum powder and 46 parts of heavy calcium carbonate, adjusting the rotating speed of a dispersion cylinder to 900-1200r/min, and continuously dispersing for 150 min;

(4) slowly adding 6 parts of hollow glass microspheres, 10 parts of aluminum silicate fiber cotton and 8.5 parts of emulsion while keeping the rotating speed of a dispersion cylinder at 600r/min, and continuously dispersing for 6 min;

(5) and reducing the rotating speed of the dispersion cylinder to 460r/min, adding 1.1 parts of antifreeze agent and 0.2 part of thickening agent, and continuously dispersing for 6min in the dispersion cylinder until the system is a uniform white mixture without particles.

The paint product belongs to the field of putty auxiliary materials, has a sound insulation effect, and is used for testing the noise-reduction sound-insulation interior wall putty paste prepared by each embodiment according to the related performance of sound absorption performance grading of JG/T298-2010 indoor putty for buildings and GB/T16731-1997 building sound absorption products. The results of the physical property tests are shown in table 1 below,

TABLE 1

As can be seen from Table 1, each of the examples of the noise-reducing and sound-insulating interior wall putty paste of the present invention was tested for its relevant performance in terms of the construction interior putty as described in JG/T298-2010, all of which met the criteria for the case performance, with example 4 being the best.

The sound absorption performance ratings of GB/T16731-1997 building sound absorption products are given in Table 2 below,

TABLE 2

Grade	Noise reduction coefficient, NRC
		I	NRC≥0.8
II	0.8≥NRC≥0.6
		III	0.6≥NRC≥0.4
IV	0.4≥NRC≥0.2

The sound absorption performance test results of the construction sound absorption products according to GB/T16731-1997 in each example are shown in Table 3

TABLE 3

Serial number	Example 1	Example 2	Example 3	Example 4
					Noise reduction coefficient/NRC	0.35	0.41	0.62	0.83

As can be seen from tables 2 and 3, the noise reduction coefficient of each embodiment of the noise reduction and sound insulation interior wall putty paste disclosed by the invention is tested according to GB/T16731-1997 and meets the standard requirement, and the product can achieve the sound insulation effect and has the better effect along with the increase of the addition amount of the hollow glass beads and the aluminum silicate fiber cotton, wherein the embodiment 4 is the best.

In conclusion, in the embodiments 1 to 4 of the noise-reducing and sound-insulating interior wall putty paste, the key performance of the sound-absorbing performance grading of the G/T298-2010 indoor putty for buildings and the GB/T16731-1997 sound-absorbing products for buildings meets the standard, and the other performances are tested according to the standard and have no abnormity.

The noise-reducing and sound-insulating interior wall putty paste has the putty function, and can effectively reduce the noise reduction coefficient, thereby achieving the sound insulation effect.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.