阅读说明：本技术 一种内置无机减震颗粒的粘弹体高阻尼隔音涂料的制造方法 (Method for manufacturing viscoelastic body high-damping sound insulation coating with built-in inorganic shock-absorbing particles ) 是由 张敬敏 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种内置无机减震颗粒的粘弹体高阻尼隔音涂料的制造方法,该内置无机减震颗粒的粘弹体高阻尼隔音涂料的涂层厚度为2.5mm-3mm,共由三种功能成份组成,分别是：具有大量气孔、空穴的热塑性聚烯烃类材料复合硅胶基体层；以氢氧化镁和茶多酚为主体增加耐热性能和以活性炭、金属氧化物构筑的可随音波振动然后与涂料基体摩擦减振的功能填料；以及表面的连续石蜡填充物层。本发明主体粘弹耐水、内置减振功能颗粒、内外结合好、厚度薄、墙面结合好、无异味。(The invention discloses a method for manufacturing viscoelastic body high damping sound-insulating coating with built-in inorganic shock-absorbing particles, the thickness of the coating of the viscoelastic body high damping sound-insulating coating with the built-in inorganic shock-absorbing particles is 2.5mm-3mm, and the coating comprises three functional components: thermoplastic polyolefin material composite silica gel matrix layer with a large amount of pores and cavities; magnesium hydroxide and tea polyphenol are used as main bodies to increase heat resistance, and active carbon and metal oxide are used to construct a functional filler which can vibrate along with sound waves and then rub and damp with a coating matrix; and a continuous paraffin filler layer on the surface. The main body of the invention has viscoelasticity, water resistance, built-in vibration reduction functional particles, good combination of inside and outside, thin thickness, good combination of wall surface and no peculiar smell.)

1. A manufacturing method of viscoelastic body high damping sound insulation coating with built-in inorganic shock absorption particles is characterized by comprising the following steps;

1) raw material preparation

① preparing raw materials, namely preparing 80-100 parts of ethylene propylene diene monomer, 15-20 parts of talcum powder, 2-3 parts of magnesium hydroxide, 25-30 parts of polypropylene, 1-1.2 parts of tea polyphenol, sufficient 20% of sodium silicate solution with mass concentration, sufficient 10-50 mu m of active carbon spherulites, sufficient 10-100 mu m of metal oxide powder, sufficient potassium sulfite, sufficient phosphorus pentoxide, sufficient potassium permanganate, sufficient hydrogen peroxide, sufficient paraffin and sufficient saturated concentrated sulfuric acid according to parts by weight;

② preparing auxiliary materials by preparing water;

2) prepreparation

①, uniformly mixing the metal oxide powder prepared in the step ① in the stage 1) and the activated carbon spheres according to the mass ratio of (7-9) to 1, mixing the mixed powder and the aqueous solution of sodium silicate to form a turbid solution with the solid-liquid mass ratio of 1 to (2.5-3), and adding a proper amount of potassium sulfite into the turbid solution to keep the mass concentration of the potassium sulfite at 3-5% to obtain a component A;

②, mixing saturated concentrated sulfuric acid, phosphorus pentoxide, potassium permanganate and hydrogen peroxide prepared in the step ① in the stage 1) uniformly according to the mass ratio of (8-9) to (1) (5-6) to (2.2-2.7), mixing the mixture with water prepared in the step ② in the stage 1) to prepare an aqueous solution with the total mass concentration of solute of 25-27%, and obtaining a solution B;

3) base layer

① melting and blending the ethylene propylene diene monomer rubber prepared in step ① of stage 1), talcum powder, magnesium hydroxide, polypropylene and tea polyphenol under protective atmosphere, and stirring uniformly to obtain a coating substrate;

4) functional layer

①, uniformly stirring the component A obtained in the step ① in the stage 2), adding the component A into the paint substrate obtained in the stage 3) in an adding amount of 8-10% by mass of the paint substrate to obtain a mixed paint C;

② after spraying a layer of 0.1mm-0.15mm mixed paint C on the inner wall surface, before the mixed paint C is sprayed and solidified, uniformly and slowly spraying the solution B obtained in the step ② in the stage 2) on the surface of the mixed paint C at a speed of 2% V/10 s-3% V/10s by volume of the mixed paint C, continuously cooling the mixed paint C to room temperature, stopping spraying, and standing until the coating is naturally dried to obtain a prefabricated coating;

③ repeating step ② until the coating thickness is accumulated to 2.5mm-3mm to obtain crude coating;

5) surface filling

①, evenly brushing the paraffin wax prepared in the step ① in the step 1) on the rough surface of the coating obtained in the step 4) after hot melting until the rough functional surface is filled to be smooth, and after natural cooling, the volume of the hot wax shrinks to obtain a surface embossed coating which is the viscoelastic body high damping sound insulation coating with the inorganic shock absorption particles.

2. The manufacturing method of the viscoelastic body high damping sound insulation coating with the built-in inorganic shock absorption particles as claimed in claim 1, is characterized in that: wherein the metal oxide is one or more of ferrous oxide, aluminum oxide, magnesium oxide and copper oxide.

Technical Field

The invention relates to the technical field of sound insulation coatings, in particular to a manufacturing method of a viscoelastic high-damping sound insulation coating with built-in inorganic shock-absorbing particles.

Background

The existing noise reduction coating is generally manufactured by taking biological fiber, mineral fiber and the like as main raw materials and combining other fire retardants, moisture-proof agents, enzyme corrosion-proof agents and the like, and the materials are sprayed out together with adhesives through professional machinery and attached to inner roofs and wall surfaces to form thicker materials with apparent porous cotton-shaped coatings.

However, the prior art has several technical difficulties which are not overcome: 1. no material or coating has the functions of sound absorption and sound resistance, the silencing effect is not obvious, and the silencing effect is particularly low on high-frequency sound waves with high permeability; 2. the ingredients contain the plasticizer, so that the ingredients are easy to embrittle due to the migration of the plasticizer, poor in ultraviolet resistance and free of pollution; 3. the sound insulation material is generally an organic polymer, and has poor binding force with a cement wall surface due to the problem of permeability; 4. the coating is very thick, generally 5mm-10mm, the wall surface has poor binding force and large occupied area; 5. a large amount of organic polymer is used, and meanwhile, the weather resistance is poor, the use amount of the adhesive is large, and the process is not environment-friendly.

Therefore, a viscoelastic body high-damping sound insulation coating with built-in inorganic shock absorption particles and a manufacturing method thereof, wherein the viscoelastic body high-damping sound insulation coating is viscoelastic and waterproof in main body, is provided with built-in shock absorption functional particles, is good in combination of inside and outside, is thin in thickness, is good in combination of wall surfaces, and is free from peculiar smell, is urgently needed in the market.

Disclosure of Invention

The invention aims to provide a viscoelastic body high-damping sound-insulation coating with built-in inorganic shock-absorption particles, which has the advantages of viscoelastic water resistance of a main body, built-in shock-absorption functional particles, good combination of inside and outside, thin thickness, good combination of wall surfaces and no peculiar smell, and a manufacturing method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme: a manufacturing method of viscoelastic body high damping sound insulation coating with built-in inorganic shock absorption particles comprises the following steps;

1) raw material preparation

① preparing raw materials, namely preparing 80-100 parts of ethylene propylene diene monomer, 15-20 parts of talcum powder, 2-3 parts of magnesium hydroxide, 25-30 parts of polypropylene, 1-1.2 parts of tea polyphenol, sufficient 20% of sodium silicate aqueous solution, sufficient 1-5 mu m of activated carbon spherulites, sufficient 1-10 mu m of metal oxide powder, sufficient potassium sulfite, sufficient phosphorus pentoxide, sufficient potassium permanganate, sufficient hydrogen peroxide, sufficient paraffin and sufficient saturated concentrated sulfuric acid by weight;

② preparing auxiliary materials by preparing water;

2) prepreparation

①, uniformly mixing the metal oxide powder prepared in the step ① in the stage 1) and the activated carbon spheres according to the mass ratio of (7-9) to 1, mixing the mixed powder and the aqueous solution of sodium silicate to form a turbid solution with the solid-liquid mass ratio of 1 to (2.5-3), and adding a proper amount of potassium sulfite into the turbid solution to keep the mass concentration of the potassium sulfite at 3-5% to obtain a component A;

②, mixing saturated concentrated sulfuric acid, phosphorus pentoxide, potassium permanganate and hydrogen peroxide prepared in the step ① in the stage 1) uniformly according to the mass ratio of (8-9) to (1) (5-6) to (2.2-2.7), mixing the mixture with water prepared in the step ② in the stage 1) to prepare an aqueous solution with the total mass concentration of solute of 25-27%, and obtaining a solution B;

3) base layer

① melting and blending the ethylene propylene diene monomer rubber prepared in step ① of stage 1), talcum powder, magnesium hydroxide, polypropylene and tea polyphenol under protective atmosphere, and stirring uniformly to obtain a coating substrate;

4) functional layer

①, uniformly stirring the component A obtained in the step ① in the stage 2), adding the component A into the paint substrate obtained in the stage 3) in an adding amount of 8-10% by mass of the paint substrate to obtain a mixed paint C;

② after spraying a layer of 0.1mm-0.15mm mixed paint C on the inner wall surface, before the mixed paint C is sprayed and solidified, uniformly and slowly spraying the solution B obtained in the step ② in the stage 2) on the surface of the mixed paint C at a speed of 2% V/10 s-3% V/10s by volume of the mixed paint C, continuously cooling the mixed paint C to room temperature, stopping spraying, and standing until the coating is naturally dried to obtain a prefabricated coating;

③ repeating step ② until the coating thickness is accumulated to 2.5mm-3mm to obtain crude coating;

5) surface filling

①, evenly brushing the paraffin wax prepared in the step ① in the step 1) on the rough surface of the coating obtained in the step 4) after hot melting until the rough functional surface is filled to be smooth, and after natural cooling, the volume of the hot wax shrinks to obtain a surface embossed coating which is the viscoelastic body high damping sound insulation coating with the inorganic shock absorption particles.

Wherein the metal oxide is one or more of ferrous oxide, aluminum oxide, magnesium oxide and copper oxide

Compared with the prior art, the invention has the following advantages: (1) the coating matrix is a thermoplastic polyolefin material with high acoustic resistance and high viscoelasticity, and is mixed with flexible high acoustic resistance silicic acid gel, and hydrogen peroxide is heated and decomposed to release gas during gel curing to form a porous and cavity structure, so that the coating matrix has stronger acoustic resistance and good penetration prevention effect, and simultaneously has a very multi-cavity structure. (2) The surface structure of the invention is actually a comprehensive non-smooth structure of the porous viscoelastic colloid which presents a composite tough substrate with protruding points (lotus effect) and lubricating graphite powder and paraffin under the consolidation action of the wax, the protruding points provide the lotus effect which enables the invention to be more water-resistant, and other structures provide enough internal bonding force, toughness and lubrication for the invention, so the invention is water-resistant and impact-resistant. (3) The main solvent of the invention is water-soluble inorganic material, the penetration rate of the wall surface is high, most of the materials used as the matrix are precipitated in a form of solidification by gel and chemical reaction, the binding force with the wall surface is further deepened, and the addition of magnesium hydroxide and tea polyphenol ensures that the invention is more resistant to high temperature and oxidation. (4) The coating of the invention is very thin and is only 1/4-1/2 in the prior art, and the occupied area is small. (5) The main materials of the invention are all inorganic weather-resistant materials, and the process is environment-friendly and pollution-free. Therefore, the invention has the characteristics of viscoelastic and waterproof main body, built-in vibration-damping functional particles, good combination of inside and outside, thin thickness, good combination of wall surfaces and no peculiar smell.

Detailed Description