CN111205765B - Sound insulation coating for inner wall surface of inflammable and explosive warehouse and manufacturing method thereof - Google Patents
Sound insulation coating for inner wall surface of inflammable and explosive warehouse and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses a sound insulation coating for the inner wall surface of a warehouse of inflammable and explosive products and a manufacturing method thereof, the sound insulation coating consists of a substrate and a functional filler, wherein the substrate is a silicon-based resin substrate prepared by taking starch grafted sodium acrylate, polymethyl silicone resin, silicon dioxide-polymethyl vinyl silicone rubber, a vulcanizing agent and a silane coupling agent as raw materials, the functional filler is a conductive resonance particle with a three-layer structure prepared by taking ethyl orthosilicate, ammonia water, glass micropowder, tin chloride dihydrate, antimony chloride, citric acid powder and sodium bicarbonate powder as raw materials, and the three-layer structure comprises the glass micropowder, an active silicon dioxide substrate layer and an antimony-doped tin oxide outer film coating layer from inside to outside. The invention has the advantages of static electricity removal, flame retardance, nonflammability, sound insulation and shock absorption.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a sound insulation coating for an inner wall surface of a warehouse for flammable and explosive materials and a manufacturing method thereof.
Background
In prior art warehouses for storing flammable and explosive products, the prior art requirements generally include: 1. far from other buildings, ventilation is good; 2. strictly forbidding fireworks and firecrackers, and not bringing fire seeds, inflammable materials, ironware and the like into a warehouse; 3. inflammable and explosive articles need to be stored in a special warehouse respectively and cannot be randomly placed, the calcium carbide is stored in a moistureproof manner, and materials such as the calcium carbide are not required to be shipped in rainy days. And all technical requirements do not standardize the in-wall coating, in fact, choose suitable coating to protect in the wall, can reduce the risk of deflagration in the warehouse to a great extent, for example use antistatic coating.
The common antistatic coating in the prior art is mainly prepared by coating and adding conductive materials, and has an antistatic function on the basis of keeping the inherent physical characteristics of a base material. The composite coating material is prepared by using a composite of organic and inorganic raw materials as a main component and performing nano-technology modulation and production, and has the advantages of no color, transparency, flat and smooth surface, and is used for shielding electromagnetic waves and eliminating static electricity.
However, in the prior art, a coating material specially designed for the inner wall surface of the flammable and explosive material warehouse is not provided, and the existing professional coating only has an antistatic function, but in fact, the technical performances of dehumidification, self-flame retardance, sound insulation, shock absorption and the like in the flammable and explosive material warehouse have obvious excellent effects on improving the safety performance of the flammable and explosive material warehouse.
Therefore, there is a need in the market for a sound-insulating coating for the inner wall surface of a warehouse for flammable and explosive materials, which has the advantages of static electricity elimination, flame retardance, self-flammability, sound insulation and shock absorption, and a manufacturing method thereof.
Disclosure of Invention
The invention aims to provide a method for manufacturing a sound insulation coating for the inner wall surface of a warehouse of flammable and explosive materials, which has the advantages of static electricity removal, flame retardance, nonflammability, sound insulation and shock absorption.
In order to achieve the purpose, the invention adopts the following technical scheme: a manufacturing method of a sound insulation coating for the inner wall surface of a warehouse of flammable and explosive materials comprises the following steps:
1) raw material preparation
Preparing raw materials: preparing 2-2.5 parts of ethyl orthosilicate, 4.5-5 parts of saturated ammonia water, 8-10 parts of glass micro powder with the granularity of 2000-4000 meshes, 3-5 parts of starch grafted sodium acrylate, 6-8 parts of stannic chloride dihydrate, 0.9-1.2 parts of antimony chloride, 0.05-0.06 part of citric acid powder, 0.05-0.06 part of sodium bicarbonate powder, 45-55 parts of polymethyl silicone resin, 8-10 parts of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4-0.5 part of vulcanizing agent and 0.5-0.7 part of silane coupling agent according to parts by weight;
preparing auxiliary materials: preparing sufficient ethanol;
2) functional filler preparation
Dissolving the ethyl orthosilicate prepared in the step 1) in a proper amount of the ethanol prepared in the step 1) in the step II until the ethyl orthosilicate is completely dissolved, and standing for 12-15 min to obtain a solution A;
secondly, stirring the solution A obtained in the first step at a speed of 80-100 rpm/min, uniformly and slowly and completely dripping all the saturated ammonia water prepared in the first step in the stage 1) within a time range of 35-40 min while stirring, continuing stirring for 5-8 min after dripping is finished, and then standing and sealing for 2-3 days to obtain a sol solution B;
thirdly, completely putting the glass micro powder prepared in the step 1) in the step I into the sol solution B obtained in the step II, uniformly stirring, heating the mixed solution to 260-270 ℃ until the content is completely dried into a cake, then heating to 520-530 ℃, keeping for 60-80 min, air-cooling to room temperature to obtain a treated dry solid, and ball-milling the obtained dry solid to 800-1000 meshes to obtain particles C;
completely dissolving the tin chloride dihydrate prepared in the step 1) in 80-85 parts by weight of the ethanol prepared in the step 1) in a closed environment
Stirring at the speed of 80-100 rpm/min, heating to 72-78 ℃, preserving heat for 2-2.5 h, removing the seal, continuously preserving heat until the total weight of the solution is 48-50 parts by weight, then cooling to room temperature, cooling, and standing for 8-10 h to obtain a sol solution D;
completely dissolving antimony chloride prepared in the step 1) into 18-20 parts by weight of ethanol prepared in the step two in the step 1), stirring and heating to 72-78 ℃ at the speed of 80-100 rpm/min in a closed environment, and preserving heat for 2-2.5 hours to obtain a sol solution E;
sixthly, mixing the particles C obtained in the step three, the sol solution D obtained in the step four and the sol solution E obtained in the step five, fully stirring the mixture until the mixture is completely dried, heating the mixture to 520-530 ℃, keeping the temperature for 1.5-2 h to obtain a composite dried substance, ball-milling the obtained composite dried substance to 500-800 meshes to obtain particles, and uniformly mixing the particles with the citric acid powder prepared in the step 1) to obtain the required functional filler
3) Bath preparation
Preparing the polymethyl silicone resin, the silicon dioxide doped polymethyl vinyl silicone rubber and the starch grafted sodium acrylate prepared in the step 1) into an original mixed rubber molten pool by adopting a double-roller open mill in a mechanical blending mode;
gradually adding the vulcanizing agent, the silane coupling agent and the sodium bicarbonate powder prepared in the step 1) into the original mixed glue melting pool obtained in the step I, and continuously reacting for 1.5-2 h to obtain a pre-reaction melting pool;
4) sound insulation coating forming method for inner wall surface of inflammable and explosive product warehouse
Putting the functional filler obtained in the step 2) into the pre-reaction molten pool obtained in the step 3), uniformly stirring while preserving heat, and continuously stirring until the solution is stable to obtain a pre-prepared coating stock solution;
secondly, brushing the prefabricated coating stock solution obtained in the first step on the inner wall surface of a warehouse of flammable and explosive materials, and brushing the thickness of the prefabricated coating stock solution to 8-10 mm to obtain an original coating;
thirdly, the obtained original coating is baked by long-distance flame, the surface of the original coating is heated to 170-180 ℃ for 8-10 seconds, and the required sound insulation coating is obtained.
A sound insulation coating for the inner wall of a warehouse of inflammable and explosive articles comprises a substrate and a functional filler, wherein the substrate is a silicon-based resin substrate prepared by taking 3-5 parts by weight of starch grafted sodium acrylate, 45-55 parts by weight of polymethyl silicone resin, 8-10 parts by weight of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4-0.5 part by weight of vulcanizing agent and 0.5-0.7 part by weight of silane coupling agent as raw materials, the functional filler is a three-layer conductive resonance particle which is prepared by taking 2-2.5 parts by weight of ethyl orthosilicate, 4.5-5 parts by weight of saturated ammonia water, 8-10 parts by weight of glass micro powder with the granularity of 2000-4000 meshes, 6-8 parts by weight of tin chloride dihydrate, 0.9-1.2 parts by weight of antimony chloride, 0.05-0.06 part by weight of citric acid powder and 0.05-0.06 part by weight of sodium bicarbonate powder as raw materials and has the particle size of 500-800 meshes, the three-layer structure comprises glass micro powder, an active silica substrate layer and an antimony-doped tin oxide outer coating layer from inside to outside.
Compared with the prior art, the invention has the following advantages: (1) the invention is a very miscellaneous integral, and has the functions of static resistance, dehumidification, self-flame retardation, sound insulation and shock absorption, and the comprehensive protective performance is excellent. (2) The antistatic function of the invention is realized by the combined action of starch grafted sodium acrylate and sodium salt generated by absorbing moisture in the starch grafted sodium acrylate, adding special conductive coating and reacting citric acid with sodium bicarbonate, and the antistatic performance and the electromagnetic shielding performance of the whole antistatic coating are both good. (3) The invention contains a proper amount of starch grafted sodium acrylate, so that the starch grafted sodium acrylate can actively adsorb moisture in the air when the air humidity is too high, and the drying in a warehouse is ensured to a certain extent. (4) The material used in the invention is silicon sulfide-based resin and contains various temperature-resistant and non-self-flammable components, so that the material is self-flame-retardant. (5) The invention generates a certain amount of air holes and water through the reaction of citric acid and sodium bicarbonate during final forming, part of the water is absorbed by starch grafted sodium acrylate in the gasification process, and then part of the water is evaporated in the high-temperature post-treatment process to form a cavity with contracted volume, so that the obtained sound insulation material is loose as a whole and contains a large number of compact air holes, the contracted starch grafted sodium acrylate in the air holes and the conductive resonance particles taking silicon dioxide as a core and doped with antimony tin oxide as a shell can eliminate the mechanical energy of sound waves to a certain degree through resonance, and has good sound insulation effect. (6) The composite material using silicon-based resin material as matrix has the biggest problem that the viscosity of the melt is too high, and the internal components are difficult to mix uniformly, so that the complex silicon-based sulfide resin composite material with multiple components, which is like the invention, is not available in the prior art. Therefore, the invention has the characteristics of static electricity removal, flame retardance, non-flammability, sound insulation and shock absorption.
Detailed Description
Example 1:
the preparation method of the sound insulation coating for the inner wall surface of the inflammable and explosive warehouse comprises the following steps:
preparing raw materials: preparing 2.2kg of ethyl orthosilicate, 4.8kg of saturated ammonia water, 9kg of glass micropowder with the granularity of 2000-4000 meshes, 3.5kg of starch grafted sodium acrylate, 7kg of tin chloride dihydrate, 1kg of antimony chloride, 0.06kg of citric acid powder, 0.05kg of sodium bicarbonate powder, 52kg of polymethyl silicone resin, 9kg of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4kg of vulcanizing agent, 0.6kg of silane coupling agent and sufficient ethanol according to parts by weight;
dissolving ethyl orthosilicate into a proper amount of ethanol until the ethyl orthosilicate is completely dissolved, and standing for 12-15 min to obtain a solution A; stirring the solution A at a speed of 80-100 rpm/min, uniformly and slowly dripping all saturated ammonia water within a time range of 35-40 min while stirring, continuously stirring for 5-8 min after dripping is finished, and then standing and sealing for 2-3 days to obtain a sol solution B; completely putting the glass micro powder into the sol solution B, uniformly stirring, heating the mixed solution to 260-270 ℃ until the content is completely dried into a cake, then heating to 520-530 ℃, keeping for 60-80 min, air-cooling to room temperature to obtain a treated dry solid, and ball-milling the obtained dry solid to 800-1000 meshes to obtain particles C;
dissolving tin chloride dihydrate into alcohol completely under closed environment
Stirring at the speed of 80-100 rpm/min, heating to 72-78 ℃, preserving heat for 2-2.5 h, removing the seal, continuously preserving heat until the total weight of the solution is 50-60% of the original total weight, then air-cooling to room temperature, cooling, and standing for 8-10 h to obtain a sol solution D; completely dissolving antimony chloride into ethanol, stirring and heating to 72-78 ℃ at the speed of 80-100 rpm/min in a closed environment, and preserving heat for 2-2.5 h to obtain a sol solution E;
mixing the particles C, the sol solution D and the sol solution E completely, stirring the mixture fully to be uniform, heating the mixture until the mixture is completely dried, heating the mixture to 520-530 ℃, keeping the temperature for 1.5-2 h to obtain a composite dried substance, ball-milling the obtained composite dried substance to 500-800 meshes to obtain particles, and uniformly mixing the particles with the citric acid powder prepared in the step 1) to obtain the functional filler;
preparing original mixed glue molten pool by adopting a double-roller open mill by adopting polymethyl silicone resin, silicon dioxide doped polymethyl vinyl silicone rubber and starch grafted sodium acrylate in a mechanical blending mode; gradually adding a vulcanizing agent, a silane coupling agent and sodium bicarbonate powder into the original mixed glue molten pool, and continuously reacting for 1.5-2 h to obtain a pre-reaction molten pool;
sixthly, putting the functional filler into the pre-reaction molten pool, uniformly stirring while preserving heat, and continuously stirring until the solution is stable to obtain a pre-prepared coating stock solution; brushing the obtained pre-coating stock solution on the inner wall surface of a warehouse of flammable and explosive products, wherein the brushing thickness is 8mm-10mm, and thus obtaining an original coating; the obtained original coating is baked by remote flame to raise the surface of the original coating to 170 DEG C
And (4) keeping the temperature at-180 ℃ for 8-10 s, thus obtaining the required sound insulation coating. The sound-proof coating consists of a matrix and functional filler.
The sound insulation coating manufactured according to the embodiment has the overall conductivity of 200S/cm-300S/cm, the sound absorption coefficient range NRC of 0.55-0.65, the sound insulation amount of 10dB-12dB, the flame retardant property V-0, no toxic gas and smoke when contacting a fire source, environmental protection E0 grade methanol or formaldehyde-free property, and the following steps are the same.
Example 2:
the whole is in accordance with example 1, with the difference that:
preparing raw materials: preparing 2kg of ethyl orthosilicate, 4.5kg of saturated ammonia water, 8kg of glass micro powder with the granularity of 2000-4000 meshes, 3kg of starch grafted sodium acrylate, 6kg of tin chloride dihydrate, 0.9kg of antimony chloride, 0.05kg of citric acid powder, 0.05kg of sodium bicarbonate powder, 55kg of polymethyl silicone resin, 8kg of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4kg of vulcanizing agent, 0.5kg of silane coupling agent and sufficient ethanol according to parts by weight;
example 3:
the whole is in accordance with example 1, with the difference that:
preparing raw materials: preparing 2.5kg of ethyl orthosilicate, 5kg of saturated ammonia water, 10kg of glass micro powder with the granularity of 2000-4000 meshes, 5kg of starch grafted sodium acrylate, 8kg of tin chloride dihydrate, 1.2kg of antimony chloride, 0.06kg of citric acid powder, 0.06kg of sodium bicarbonate powder, 45kg of polymethyl silicone resin, 10kg of silicon dioxide doped polymethyl vinyl silicone rubber, 0.5kg of vulcanizing agent, 0.7kg of silane coupling agent and sufficient ethanol in parts by weight;
the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A manufacturing method of a sound insulation coating for the inner wall surface of a warehouse for flammable and explosive materials is characterized by comprising the following steps:
1) raw material preparation
Preparing raw materials: preparing 2-2.5 parts of ethyl orthosilicate, 4.5-5 parts of saturated ammonia water, 8-10 parts of glass micro powder with the granularity of 2000-4000 meshes, 3-5 parts of starch grafted sodium acrylate, 6-8 parts of stannic chloride dihydrate, 0.9-1.2 parts of antimony chloride, 0.05-0.06 part of citric acid powder, 0.05-0.06 part of sodium bicarbonate powder, 45-55 parts of polymethyl silicone resin, 8-10 parts of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4-0.5 part of vulcanizing agent and 0.5-0.7 part of silane coupling agent according to parts by weight;
preparing auxiliary materials: preparing sufficient ethanol;
2) functional filler preparation
Dissolving the ethyl orthosilicate prepared in the step 1) in a proper amount of the ethanol prepared in the step 1) in the step II until the ethyl orthosilicate is completely dissolved, and standing for 12-15 min to obtain a solution A;
secondly, stirring the solution A obtained in the first step at a speed of 80-100 rpm/min, uniformly and slowly and completely dripping all the saturated ammonia water prepared in the first step in the stage 1) within a time range of 35-40 min while stirring, continuing stirring for 5-8 min after dripping is finished, and then standing and sealing for 2-3 days to obtain a sol solution B;
thirdly, completely putting the glass micro powder prepared in the step 1) in the step I into the sol solution B obtained in the step II, uniformly stirring, heating the mixed solution to 260-270 ℃ until the content is completely dried into a cake, then heating to 520-530 ℃, keeping for 60-80 min, air-cooling to room temperature to obtain a treated dry solid, and ball-milling the obtained dry solid to 800-1000 meshes to obtain particles C;
completely dissolving the tin chloride dihydrate prepared in the step 1) in 80-85 parts by weight of the ethanol prepared in the step 1), stirring and heating to 72-78 ℃ at the speed of 80-100 rpm/min in a closed environment, preserving heat for 2-2.5 h, removing the seal, continuing preserving heat until the total weight of the solution is 48-50 parts by weight, then cooling to room temperature, and standing for 8-10 h after cooling to obtain a sol solution D;
completely dissolving antimony chloride prepared in the step 1) into 18-20 parts by weight of ethanol prepared in the step two in the step 1), stirring and heating to 72-78 ℃ at the speed of 80-100 rpm/min in a closed environment, and preserving heat for 2-2.5 hours to obtain a sol solution E;
sixthly, mixing the particles C obtained in the step three, the sol solution D obtained in the step four and the sol solution E obtained in the step five, fully stirring the mixture until the mixture is completely dried, heating the mixture to 520-530 ℃, keeping the temperature for 1.5-2 h to obtain a composite dried substance, ball-milling the obtained composite dried substance to 500-800 meshes to obtain particles, and uniformly mixing the particles with the citric acid powder prepared in the step 1) to obtain the required functional filler
3) Bath preparation
Preparing the polymethyl silicone resin, the silicon dioxide doped polymethyl vinyl silicone rubber and the starch grafted sodium acrylate prepared in the step 1) into an original mixed rubber molten pool by adopting a double-roller open mill in a mechanical blending mode;
gradually adding the vulcanizing agent, the silane coupling agent and the sodium bicarbonate powder prepared in the step 1) into the original mixed glue melting pool obtained in the step I, and continuously reacting for 1.5-2 h to obtain a pre-reaction melting pool;
4) sound insulation coating forming method for inner wall surface of inflammable and explosive product warehouse
Putting the functional filler obtained in the step 2) into the pre-reaction molten pool obtained in the step 3), uniformly stirring while preserving heat, and continuously stirring until the solution is stable to obtain a pre-prepared coating stock solution;
secondly, brushing the prefabricated coating stock solution obtained in the first step on the inner wall surface of a warehouse of flammable and explosive materials, and brushing the thickness of the prefabricated coating stock solution to 8-10 mm to obtain an original coating;
thirdly, the obtained original coating is baked by long-distance flame, the surface of the original coating is heated to 170-180 ℃ for 8-10 seconds, and the required sound insulation coating is obtained.
2. The utility model provides a soundproof coating that is used for wall in inflammable and explosive article warehouse which characterized in that: the sound insulation coating comprises a substrate and a functional filler, wherein the substrate is a silicon-based resin substrate prepared by taking 3-5 parts by weight of starch grafted sodium acrylate, 45-55 parts by weight of polymethyl silicone resin, 8-10 parts by weight of silicon dioxide doped polymethyl vinyl silicone rubber, 0.4-0.5 part by weight of vulcanizing agent and 0.5-0.7 part by weight of silane coupling agent as raw materials, the functional filler is a three-layer structure conductive resonance particle which is prepared by taking 2-2.5 parts by weight of ethyl orthosilicate, 4.5-5 parts by weight of saturated ammonia water, 8-10 parts by weight of glass micropowder with the granularity of 2000 meshes-4000 meshes, 6-8 parts by weight of tin chloride dihydrate, 0.9-1.2 parts by weight of antimony chloride, 0.05-0.06 part by weight of citric acid powder and 0.05-0.06 part by weight of sodium bicarbonate powder as raw materials and has the particle size of 500 meshes-800 meshes, and the three-layer structure conductive resonance particle is specifically composed of the glass micropowder from inside to outside, An active silicon dioxide substrate layer and an antimony-doped tin oxide outer coating layer.
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| CN202010107246.4A CN111205765B (en) | 2020-02-21 | 2020-02-21 | Sound insulation coating for inner wall surface of inflammable and explosive warehouse and manufacturing method thereof |
| PCT/CN2020/123788 WO2021164297A1 (en) | 2020-02-21 | 2020-10-27 | Soundproof coating for interior wall of flammable and explosive article warehouse, and manufacturing method therefor |
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| CN202010107246.4A CN111205765B (en) | 2020-02-21 | 2020-02-21 | Sound insulation coating for inner wall surface of inflammable and explosive warehouse and manufacturing method thereof |
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| CN107163581A (en) * | 2017-06-12 | 2017-09-15 | 合肥铭佑高温技术有限公司 | A kind of fire-resistant silicon rubber and preparation method thereof |
| CN107163834A (en) * | 2017-05-31 | 2017-09-15 | 兴勤（常州）电子有限公司 | A kind of organic resin coating composition |
| CN110808159A (en) * | 2019-12-14 | 2020-02-18 | 山东光韵智能科技有限公司 | Method for manufacturing electromagnetic conductive contact made of iron-nickel-based composite material by sol-gel method |
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| KR100272624B1 (en) * | 1998-05-15 | 2000-12-01 | 손연호 | Fireproofing and sound-absorbing composition |
| CN103992710A (en) * | 2014-06-10 | 2014-08-20 | 马鞍山创宁新材料科技有限公司 | Environment-friendly sound-insulation paint with antistatic function and preparation method thereof |
| CN109679393A (en) * | 2019-01-06 | 2019-04-26 | 微山宏瑞电力科技有限公司 | The pure inorganic covering fire-retardant fireproof high-temperature resistant coating additive of one kind and its manufacturing method |
| CN110713758A (en) * | 2019-09-18 | 2020-01-21 | 山东光韵智能科技有限公司 | Method for manufacturing viscoelastic body high-damping sound insulation coating with built-in inorganic shock-absorbing particles |
| CN111205765B (en) * | 2020-02-21 | 2021-05-25 | 广西弗士特资源综合利用有限公司 | Sound insulation coating for inner wall surface of inflammable and explosive warehouse and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107163834A (en) * | 2017-05-31 | 2017-09-15 | 兴勤（常州）电子有限公司 | A kind of organic resin coating composition |
| CN107163581A (en) * | 2017-06-12 | 2017-09-15 | 合肥铭佑高温技术有限公司 | A kind of fire-resistant silicon rubber and preparation method thereof |
| CN110808159A (en) * | 2019-12-14 | 2020-02-18 | 山东光韵智能科技有限公司 | Method for manufacturing electromagnetic conductive contact made of iron-nickel-based composite material by sol-gel method |
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