Environmentally friendly sound insulation and heat insulation coating and preparation method thereof

Abstract

The invention discloses an environmentally friendly sound insulation and heat insulation coating and a preparation method thereof, and relates to the technical field of coatings. The present invention grinds epoxy resin, polyhexamethylene guanidine hydrochloride, diethyl (3-aminopropyl) phosphate oxalate, zeolite, zinc oxide, and titanium oxide to mix together, thereby modifying epoxy resin and improving the antibacterial and flame retardant properties of the coating. The present invention selects raw materials and each raw material ratio, and combines aerogel, ceramic hollow microspheres, zeolite, zinc oxide, and titanium oxide with multiple particle sizes, so that the path of the sound inside the coating is more complex and tortuous when passing through, so that the coating achieves better sound insulation effect. The present invention has a simple process and is easy to implement, so that a coating that can form effective protection on the surface of the coated substrate, strong decorativeness, low energy consumption, fire retardant and antibacterial and long service life can be prepared efficiently and energy-savingly, and each raw material ratio is regulated to ensure the superiority of the overall performance of the coating.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to an environmentally friendly sound-insulating and heat-insulating coating and a preparation method thereof. Background Art

[0002] From architectural coatings to industrial anti-corrosion coatings to special coatings, the materials range from wood materials, plastic products, and steel structure surfaces. The application of water-based coatings has penetrated into various application fields with the rapid development of industry. The materials of daily decorative materials such as ceilings, sound insulation materials, window lintels, seat side panels, and outdoor steel structures, bridges, tunnels, and other components all have the performance of flame propagation and high-temperature deformation. Steel structures have become the main structural form of large-space buildings due to their light weight and good ductility. Although steel is a non-combustible material, its mechanical properties will decrease rapidly under the high temperature of fire. Steel structures are prone to collapse, causing serious losses of life and property, so fire protection must be carried out on steel structures. Let people realize that fires caused by decorative materials have reached a problem that cannot be ignored. This has promoted the technological transformation and upgrading of the coating industry, achieved the fire retardancy of decorative materials, and prevented the progress of combustion deformation performance test methods.

[0003] The impact of noise on people's physical and mental health is becoming more and more serious. The sound insulation effect of existing residential floors is poor. The traditional sound insulation method is to lay sound insulation materials with special structures. It is not only troublesome to lay but also has poor effect. Therefore, many researchers are committed to the research and development of new sound insulation composite materials. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly sound insulation and heat insulation coating and a preparation method thereof, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an environmentally friendly sound insulation and heat insulation coating, made of the following raw materials in parts by weight: 10-20 parts of aerogel, 30-50 parts of modified epoxy resin, 10-20 parts of ceramic hollow microspheres, 5-10 parts of curing agent, 1-3 parts of defoaming agent, 1-3 parts of leveling agent, 1-3 parts of dispersant, and 10-20 parts of deionized water.

[0006] Furthermore, the aerogel is SiO2 aerogel powder with a particle size of 5 to 40 μm.

[0007] Furthermore, the preparation method of the modified epoxy resin is as follows: 10 parts by mass of zinc oxide and 5 parts by mass of titanium oxide are mixed and placed in a high-speed ball mill, the grinding speed of the grinder is 600 rpm, after grinding for 1 hour, 20 parts by mass of zeolite are added, the grinding speed is adjusted to 400 rpm, and grinding is carried out for 40 minutes, and then 150 parts by mass of liquid bisphenol A epoxy resin, 15 parts by mass of polyhexamethylene guanidine hydrochloride, 15 parts by mass of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by mass of pentaerythritol, and 0.5 parts by mass of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm, and after grinding for 45 minutes, the grinding speed is adjusted to 300 rpm, and grinding is carried out for 1 hour.

[0008] Furthermore, the particle sizes of the zinc oxide, titanium oxide and zeolite are all 50 μm.

[0009] Furthermore, the particle size of the ceramic hollow microspheres is 5-100 μm.

[0010] Furthermore, the curing agent is a polyamide curing agent.

[0011] Furthermore, the defoaming agent is a silicone defoaming agent.

[0012] Furthermore, the leveling agent is a fluorocarbon surfactant.

[0013] Furthermore, the dispersant is sodium hexametaphosphate.

[0014] A method for producing an environmentally friendly sound insulation and heat insulation coating comprises the following steps:

[0015] (1) adding aerogel and ceramic hollow microspheres into a high-speed mixer, and stirring at a speed of 800-1200 r / min for 10-30 minutes to obtain a mixed material;

[0016] (2) Add the mixed material into a planetary mixer, add the modified epoxy resin, curing agent, defoaming agent, leveling agent, dispersant and deionized water in sequence, and stir at a speed of 1000-1500 r / min for 30-60 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] The present invention mixes epoxy resin with polyhexamethylene guanidine hydrochloride, diethyl (3-aminopropyl) phosphate oxalate, zeolite, zinc oxide and titanium oxide by grinding, and realizes modification of epoxy resin at the same time. In addition, grinding not only makes zeolite, zinc oxide and titanium oxide present nanostructures, but also improves dispersibility in coatings. Nanostructured coatings expose more active sites, which further adsorb resins, help inhibit thermal decomposition of resin polymers and cool generated combustible gases, thereby realizing flame retardant effects. Polyhexamethylene guanidine hydrochloride and diethyl (3-aminopropyl) phosphate oxalate are assisted to improve antibacterial properties and flame retardancy of coatings.

[0019] The present invention selects raw materials and the proportions of each raw material, and combines aerogel, ceramic hollow microspheres, zeolite, zinc oxide and titanium oxide in multiple particle sizes, so that the path of sound passing through the coating is more complex and tortuous, so that the coating achieves better sound insulation effect. The present invention has a simple process and is easy to implement, so that a coating that can effectively protect the surface of the coated substrate, has strong decorative properties, low energy consumption, is fire-retardant and antibacterial, and has a long service life can be prepared efficiently and energy-savingly, and the proportions of each raw material are adjusted to ensure the superiority of the overall performance of the coating. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In order to more clearly illustrate the method provided by the present invention, the following examples are used to describe in detail the various index testing methods of the environmentally friendly sound insulation and heat insulation coatings prepared in the following examples are as follows:

[0022] Adhesion: Refer to GB / T9286-1998 test;

[0023] Sound insulation performance: refer to GB / T8485-2008 test;

[0024] Flame retardant: refer to GB12441-2005 test;

[0025] Antibacterial: Test according to the method specified in Appendix C5 of GB15979-2002.

[0026] Example 1

[0027] An environmentally friendly sound insulation and heat insulation coating is made of the following raw materials in parts by weight: 15 parts of SiO2 aerogel powder with a particle size of 5 μm, 40 parts of modified epoxy resin, 15 parts of ceramic hollow microspheres with a particle size of 100 μm, 8 parts of polyamide curing agent, 2 parts of silicone defoaming agent, 2 parts of fluorocarbon surfactant, 2 parts of sodium hexametaphosphate, and 15 parts of deionized water. The preparation method thereof comprises the following steps:

[0028] (1) 10 parts by weight of zinc oxide and 5 parts by weight of titanium oxide are mixed and placed in a high-speed ball mill at a grinding speed of 600 rpm. After grinding for 1 hour, 20 parts by weight of zeolite are added, and the particle sizes of zinc oxide, titanium oxide and zeolite are all 50 μm. The grinding speed is adjusted to 400 rpm and the grinding is carried out for 40 minutes. Then, 150 parts by weight of liquid bisphenol A epoxy resin, 15 parts by weight of polyhexamethylene guanidine hydrochloride, 15 parts by weight of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by weight of pentaerythritol, and 0.5 parts by weight of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm. After grinding for 45 minutes, the grinding speed is adjusted to 300 rpm and the grinding is carried out for 1 hour to obtain a modified epoxy resin;

[0029] (2) adding SiO2 aerogel powder and ceramic hollow microspheres into a high-speed mixer, stirring at a speed of 1000 r / min for 20 minutes to obtain a mixed material;

[0030] (3) The mixed material is added into a planetary mixer, and modified epoxy resin, polyamide curing agent, silicone defoaming agent, fluorocarbon surfactant, sodium hexametaphosphate and deionized water are added in sequence, and stirred at a speed of 1200 r / min for 45 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0031] Example 2

[0032] An environmentally friendly sound insulation and heat insulation coating is made of the following raw materials in parts by weight: 10 parts of SiO2 aerogel powder with a particle size of 40 μm, 30 parts of modified epoxy resin, 20 parts of ceramic hollow microspheres with a particle size of 10 μm, 5 parts of polyamide curing agent, 1 part of silicone defoaming agent, 1 part of fluorocarbon surfactant, 1 part of sodium hexametaphosphate, and 10 parts of deionized water. The preparation method thereof comprises the following steps:

[0033] (1) 10 parts by weight of zinc oxide and 5 parts by weight of titanium oxide are mixed and placed in a high-speed ball mill at a grinding speed of 600 rpm. After grinding for 1 hour, 20 parts by weight of zeolite are added, and the particle sizes of zinc oxide, titanium oxide and zeolite are all 50 μm. The grinding speed is adjusted to 400 rpm and the grinding is carried out for 40 minutes. Then, 150 parts by weight of liquid bisphenol A epoxy resin, 15 parts by weight of polyhexamethylene guanidine hydrochloride, 15 parts by weight of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by weight of pentaerythritol, and 0.5 parts by weight of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm. After grinding for 45 minutes, the grinding speed is adjusted to 300 rpm and the grinding is carried out for 1 hour to obtain a modified epoxy resin;

[0034] (2) adding SiO2 aerogel powder and ceramic hollow microspheres into a high-speed mixer, stirring at a speed of 800 r / min for 10 min to obtain a mixed material;

[0035] (3) The mixed material is added into a planetary mixer, and modified epoxy resin, polyamide curing agent, silicone defoaming agent, fluorocarbon surfactant, sodium hexametaphosphate and deionized water are added in sequence, and stirred at a speed of 1000 r / min for 30 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0036] Example 3

[0037] An environmentally friendly sound insulation and heat insulation coating is prepared from the following raw materials in parts by weight: 20 parts of SiO2 aerogel powder with a particle size of 15 μm, 50 parts of modified epoxy resin, 10 parts of ceramic hollow microspheres with a particle size of 15 μm, 10 parts of polyamide curing agent, 3 parts of organosilicon defoaming agent, 3 parts of fluorocarbon surfactant, 3 parts of sodium hexametaphosphate, and 20 parts of deionized water. The preparation method thereof comprises the following steps:

[0038] (1) 10 parts by weight of zinc oxide and 5 parts by weight of titanium oxide are mixed and placed in a high-speed ball mill at a grinding speed of 600 rpm. After grinding for 1 hour, 20 parts by weight of zeolite are added, and the particle sizes of zinc oxide, titanium oxide and zeolite are all 50 μm. The grinding speed is adjusted to 400 rpm and the grinding is carried out for 40 minutes. Then, 150 parts by weight of liquid bisphenol A epoxy resin, 15 parts by weight of polyhexamethylene guanidine hydrochloride, 15 parts by weight of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by weight of pentaerythritol, and 0.5 parts by weight of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm. After grinding for 45 minutes, the grinding speed is adjusted to 300 rpm and the grinding is carried out for 1 hour to obtain a modified epoxy resin;

[0039] (2) adding SiO2 aerogel powder and ceramic hollow microspheres into a high-speed mixer, stirring at a speed of 1200 r / min for 30 minutes to obtain a mixed material;

[0040] (3) The mixed material is added into a planetary mixer, and modified epoxy resin, polyamide curing agent, silicone defoaming agent, fluorocarbon surfactant, sodium hexametaphosphate and deionized water are added in sequence, and stirred at a speed of 1500 r / min for 60 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0041] Example 4

[0042] An environmentally friendly sound insulation and heat insulation coating is prepared from the following raw materials in parts by weight: 10 parts of SiO2 aerogel powder with a particle size of 25 μm, 45 parts of modified epoxy resin, 20 parts of ceramic hollow microspheres with a particle size of 55 μm, 5 parts of polyamide curing agent, 1.5 parts of silicone defoaming agent, 1 part of fluorocarbon surfactant, 1 part of sodium hexametaphosphate, and 12 parts of deionized water. The preparation method thereof comprises the following steps:

[0043] (1) 10 parts by weight of zinc oxide and 5 parts by weight of titanium oxide are mixed and placed in a high-speed ball mill at a grinding speed of 600 rpm. After grinding for 1 hour, 20 parts by weight of zeolite are added, and the particle sizes of zinc oxide, titanium oxide and zeolite are all 50 μm. The grinding speed is adjusted to 400 rpm and the grinding is carried out for 40 minutes. Then, 150 parts by weight of liquid bisphenol A epoxy resin, 15 parts by weight of polyhexamethylene guanidine hydrochloride, 15 parts by weight of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by weight of pentaerythritol, and 0.5 parts by weight of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm. After grinding for 45 minutes, the grinding speed is adjusted to 300 rpm and the grinding is carried out for 1 hour to obtain a modified epoxy resin;

[0044] (2) adding SiO2 aerogel powder and ceramic hollow microspheres into a high-speed mixer, stirring at a speed of 1200 r / min for 30 minutes to obtain a mixed material;

[0045] (3) The mixed material is added into a planetary mixer, and modified epoxy resin, polyamide curing agent, silicone defoaming agent, fluorocarbon surfactant, sodium hexametaphosphate and deionized water are added in sequence, and stirred at a speed of 1500 r / min for 60 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0046] Comparative Example 1

[0047] The difference between Comparative Example 1 and Example 2 is that polyhexamethyleneguanidine hydrochloride is not added, and the remaining steps are the same as Example 2.

[0048] Comparative Example 2

[0049] The difference between Comparative Example 2 and Example 2 is that diethyl (3-aminopropyl) phosphate oxalate is not added, and the remaining steps are the same as Example 2.

[0050] Comparative Example 3

[0051] The difference between Comparative Example 3 and Example 2 is that: 10 parts by mass of zinc oxide, 5 parts by mass of titanium oxide, and 20 parts by mass of zeolite are mixed and placed in a high-speed ball mill, the grinding speed of the grinder is 600 rpm, and after grinding for 1 hour, the particle sizes of zinc oxide, titanium oxide, and zeolite are all 50 μm, and 150 parts by mass of liquid bisphenol A epoxy resin, 15 parts by mass of polyhexamethylene guanidine hydrochloride, 15 parts by mass of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by mass of pentaerythritol, and 0.5 parts by mass of dibutyltin dilaurate are added. At 85° C., the grinding speed is first adjusted to 200 rpm. After grinding for 45 minutes, the grinding speed is adjusted to 300 rpm and ground for 1 hour to obtain a modified epoxy resin; the remaining steps are the same as in Example 2.

[0052] Comparative Example 4

[0053] An environmentally friendly sound insulation and heat insulation coating is prepared from the following raw materials in parts by weight: 10 parts of SiO2 aerogel powder with a particle size of 40 μm, 30 parts of modified epoxy resin, 20 parts of ceramic hollow microspheres with a particle size of 40 μm, 10 parts of zinc oxide with a particle size of 40 μm, 5 parts of titanium oxide with a particle size of 40 μm, 20 parts of zeolite with a particle size of 40 μm, 5 parts of polyamide curing agent, 1 part of organosilicon defoaming agent, 1 part of fluorocarbon surfactant, 1 part of sodium hexametaphosphate, and 10 parts of deionized water. The preparation method thereof comprises the following steps:

[0054] (1) placing 150 parts by weight of liquid bisphenol A epoxy resin, 15 parts by weight of polyhexamethyleneguanidine hydrochloride, 15 parts by weight of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by weight of pentaerythritol, and 0.5 parts by weight of dibutyltin dilaurate in a high-speed ball mill, adjusting the grinding speed to 200 rpm at 85° C., grinding for 45 minutes, then adjusting the grinding speed to 300 rpm, and grinding for 1 hour to obtain a modified epoxy resin;

[0055] (2) SiO2 aerogel powder, ceramic hollow microspheres, modified epoxy resin, polyamide curing agent, silicone defoaming agent, fluorocarbon surfactant, sodium hexametaphosphate, zinc oxide, titanium oxide, zeolite, and deionized water are mixed and stirred at a speed of 1000 r / min for 30 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

[0056] Effect example

[0057] Table 1 below shows the performance analysis results of the environmentally friendly sound insulation and heat insulation coatings of Examples 1 to 3 of the present invention and Comparative Examples 1 to 4.

[0058] Table 1

[0059]

[0060] The present invention, through grinding, makes epoxy resin and polyhexamethylene guanidine hydrochloride, diethyl (3-aminopropyl) phosphate ester oxalate, zeolite, zinc oxide, titanium oxide are mixed together, and the modification of epoxy resin is realized at the same time. In addition, grinding not only makes zeolite, zinc oxide and titanium oxide present nanostructure, but also can improve the dispersibility in coating, and nanostructure exposes more active sites, and then adsorbs resin, helps to inhibit the thermal decomposition of resin polymer and the effect of cooling the generated combustible gas, realizes flame retardant effect, and assists polyhexamethylene guanidine hydrochloride and diethyl (3-aminopropyl) phosphate ester oxalate, improves the antibacterial property and flame retardancy of coating. The present invention selects raw materials and the proportion of each raw material, and combines aerogel, ceramic hollow microspheres, zeolite, zinc oxide and titanium oxide with multiple particle sizes, so that the path of sound inside the coating is more complicated and tortuous when passing through, so that the coating realizes better sound insulation effect. The process of the present invention is simple and easy to implement, so that a coating which can effectively protect the surface of the coated substrate, has strong decorative properties, low energy consumption, is fire-retardant, antibacterial and has a long service life can be prepared efficiently and energy-savingly, and the ratio of each raw material can be adjusted to ensure the superiority of the overall performance of the coating.

[0061] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An environmentally friendly sound insulation and heat insulation coating, characterized in that: The invention is prepared from the following raw materials in parts by weight: 10-20 parts of aerogel, 30-50 parts of modified epoxy resin, 10-20 parts of ceramic hollow microspheres, 5-10 parts of curing agent, 1-3 parts of defoaming agent, 1-3 parts of leveling agent, 1-3 parts of dispersant and 10-20 parts of deionized water.

2. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The aerogel is SiO2 aerogel powder with a particle size of 5 to 40 μm.

3. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The preparation method of the modified epoxy resin is as follows: 10 parts by mass of zinc oxide and 5 parts by mass of titanium oxide are mixed and placed in a high-speed ball mill, the grinding speed of the grinder is 600 rpm, after grinding for 1 hour, 20 parts by mass of zeolite are added, the grinding speed is adjusted to 400 rpm, and grinding is carried out for 40 minutes, and then 150 parts by mass of liquid bisphenol A epoxy resin, 15 parts by mass of polyhexamethylene guanidine hydrochloride, 15 parts by mass of diethyl (3-aminopropyl) phosphate oxalate, 4 parts by mass of pentaerythritol, and 0.5 parts by mass of dibutyltin dilaurate are added, and at 85° C., the grinding speed is first adjusted to 200 rpm, after grinding for 45 minutes, the grinding speed is adjusted to 300 rpm, and grinding is carried out for 1 hour.

4. The environmentally friendly sound insulation and heat insulation coating according to claim 3 is characterized in that: The particle sizes of the zinc oxide, titanium oxide and zeolite are all 50 μm.

5. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The particle size of the ceramic hollow microspheres is 5-100 μm.

6. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The curing agent is a polyamide curing agent.

7. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The defoamer is an organosilicon defoamer.

8. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The leveling agent is a fluorocarbon surfactant.

9. The environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The dispersant is sodium hexametaphosphate.

10. A method for preparing the environmentally friendly sound insulation and heat insulation coating according to claim 1, characterized in that: The following steps are involved: (1) adding aerogel and ceramic hollow microspheres into a high-speed mixer, and stirring at a speed of 800-1200 r / min for 10-30 minutes to obtain a mixed material; (2) Add the mixed material into a planetary mixer, add the modified epoxy resin, curing agent, defoaming agent, leveling agent, dispersant and deionized water in sequence, and stir at a speed of 1000-1500 r / min for 30-60 minutes to obtain an environmentally friendly sound insulation and heat insulation coating.

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