Color steel plate with macromolecule sound insulation filler

Abstract

The invention provides a color steel plate with macromolecular sound insulation filler, and relates to the technical field of sound insulation filler. The color steel plate comprises an upper-layer steel plate, a lower-layer steel plate and a high-molecular sound-insulation filler layer positioned between the upper-layer steel plate and the lower-layer steel plate, the macromolecular sound insulation filler layer is prepared from the following materials in parts by weight: 55 to 65 parts of ethylene-vinyl acetate copolymer, 25 to 35 parts of polyolefin elastomer POE, 85 to 95 parts of modified hollow glass beads, 20 to 26 parts of modified expanded perlite, 2.5 to 3.5 parts of coupling agent and 1.5 to 2.5 parts of anti-aging agent. According to the color steel plate with the macromolecule sound insulation filler, the sound insulation performance of the color steel plate is remarkably improved by introducing the efficient sound insulation filler, and a more efficient and economical sound insulation solution is provided for the fields of buildings and industries while the defects in the prior art are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of sound insulation fillers, and particularly to a color steel plate with a polymer sound insulation filler. Background Art

[0002] With the rapid development of the modern construction and industrial fields, the functional requirements for building materials are increasing day by day. As a building material widely used in temporary buildings, industrial factories, warehouses and other fields, the color steel plate is widely favored by the market due to its good corrosion resistance, bright colors, convenient processing and forming, and low cost. However, the traditional color steel plate has obvious deficiencies in sound insulation performance. Especially in construction sites and industrial environments with high noise, it cannot provide enough quiet space for users, and long-term exposure to a noisy environment poses a threat to the physical and mental health of personnel. Therefore, the development of a color steel plate with excellent sound insulation performance has become an urgent need in the industry.

[0003] Patent CN107116015A provides a sound insulation color steel sandwich panel, which includes a first color steel plate and a second color steel plate. Protective layers are provided at the bottom of the first color steel plate and the top of the second color steel plate. Sound absorption layers are provided on the opposite sides of the two protective layers. The opposite sides of the two sound absorption layers are connected to the filler layer. By providing holes and grooves in the hard mortar layer, the energy of sound enters the holes and grooves after contacting the first color steel plate or the second color steel plate, and the sound will reflect and impact in the holes and grooves, thereby consuming part of the sound energy. By providing baffles in the holes and grooves, the number of times of reflection and impact of sound in the holes and grooves can be increased, further consuming the sound energy. And the energy of sound reflecting and impacting in the holes and grooves can play a role in sound absorption again through the function of the sound-absorbing cotton.

[0004] Patent CN107116015A provides a heat-insulating, sound-insulating, fireproof and energy-saving color steel plate, which is characterized in that the color steel plate includes a color steel plate substrate; the color steel plate substrate has a first surface and a second surface opposite to the first surface; a first passivation layer, a foamed glass layer and a protective and decorative layer are sequentially provided outward on the first surface of the color steel plate substrate; a second passivation layer and an organic coating are sequentially provided outward on the second surface; the organic coating is composed of the following components in parts by weight: 14 parts of octadecyl stearate, 10 parts of C5 petroleum resin, 2 parts of composite carbon black, 3 parts of colorant, 7 parts of calcium sulfate sulfide, 2 parts of copper sulfide, 5 parts of polypropylene, and 3 parts of dibutyl phthalate; it can effectively solve the problems of heat insulation, sound insulation, fire prevention, waterproofing, etc. of the color steel plate.

[0005] Most of the color steel plates on the current market adopt a single-layer or double-layer steel plate structure, and the middle filler is mostly an air layer or a simple heat insulation material, and these materials perform poorly in terms of sound insulation. Specifically, the sound insulation performance of traditional color steel plates is mainly limited by their material structure and thickness, and it is difficult to effectively isolate noise. In addition, although some color steel plates try to improve the sound insulation effect by increasing the thickness or changing the structure, they often sacrifice the lightness and processing performance of the materials, increasing the cost and construction difficulty. Based on this, the present invention provides a color steel plate with a polymer sound insulation filler. Summary of the Invention

[0006] The purpose of the present invention is to provide a color steel plate with a polymer sound insulation filler, aiming to significantly improve the sound insulation performance of the color steel plate by introducing an efficient sound insulation filler, and also to improve the mechanical properties and flame retardant properties of the sound insulation filler to a certain extent.

[0007] The present invention provides a color steel plate with a polymer sound insulation filler, which includes an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 55-65 parts of ethylene-vinyl acetate copolymer, 25-35 parts of polyolefin elastomer POE, 85-95 parts of modified hollow glass microspheres, 20-26 parts of modified expanded perlite, 2.5-3.5 parts of coupling agent, and 1.5-2.5 parts of anti-aging agent.

[0008] Further, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres into an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 3-5%, stirring and dispersing, heating to 65-75 °C, adding an aqueous solution of titanium sulfate with a mass concentration of 10-14% and reacting for 3-4 h, filtering, washing and drying after completion, and calcining the dried product to obtain the modified hollow glass microspheres.

[0009] Further, the activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in a hydrogen peroxide acidic solution, stirring under magnetic stirring conditions at a temperature of 85-95 °C and a rotation speed of 100-200 rpm for 35-45 min, washing with water to neutral after cooling, and drying to obtain the activated hollow glass microspheres.

[0010] Further, the volume ratio of hydrogen peroxide to sulfuric acid in the hydrogen peroxide acidic solution is 1:8.

[0011] Further, the density of the hollow glass microspheres is 0.45-0.55 g / cm 3 , the compressive strength is 85-89 MPa, and the average particle size is 10-20 μm.

[0012] Further, the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate, and titanium sulfate is 10:(1 - 2):(6 - 8).

[0013] During the activation process of the hollow glass microspheres, surface impurities were removed and surface activity was increased through impregnation treatment with a hydrogen peroxide acidic solution, providing a good foundation for subsequent titanium dioxide coating; the titanium dioxide coating layer on the surface of the microspheres further enhanced its sound insulation effect. By increasing the interaction between sound waves and the material surface, the sound wave attenuation rate was improved. This dual effect makes the color steel plate of the present invention excellent in reducing the sound transmittance. In addition, as an inorganic material, the modified hollow glass microspheres have excellent weather resistance and chemical stability, and can maintain the stability of their sound insulation performance during long-term use.

[0014] Further, the calcination step includes: calcining at 680 - 720 °C for 2 - 3 h, and then calcining at 920 - 940 °C for 1 - 2 h.

[0015] This method of staged calcination ensures the uniformity and stability of the material during the modification process.

[0016] Further, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a silane coupling agent hydrolysis solution, stirring at a temperature of 60 - 70 °C and a rotation speed of 100 - 200 rpm for 20 - 30 min, washing 3 - 4 times with absolute ethanol and filtering after completion, and then drying at 60 - 80 °C for 4 - 6 h. After drying, it is ground to obtain the product.

[0017] Further, the method of alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13 - 14, ultrasonically treating at 60 - 70 °C for 40 - 50 min, washing 3 - 4 times with deionized water after cooling to room temperature, and then drying at 60 - 80 °C for 4 - 6 h.

[0018] Further, the preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 to deionized water, adjusting the pH of the solution to less than 7 with 10 - 20 wt% glacial acetic acid, and then continuing to stir at 200 - 300 rpm for 40 - 50 min to obtain the product.

[0019] Further, the volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the silane coupling agent hydrolysis solution is (5 - 6):1, and the mass of the silane coupling agent is 3 - 4% of the mass of the expanded perlite.

[0020] After the modified expanded perlite is first pretreated with an alkaline solution, the surface of the expanded perlite becomes rougher and more porous, which is beneficial to the reflection and scattering of sound waves inside it, thereby reducing the transmission of sound waves. Subsequently, through the modification treatment with a silane coupling agent, the binding force between the expanded perlite and the polymer sound insulation filler is further enhanced, improving the overall density and sound insulation effect of the sound insulation layer.

[0021] The beneficial effects of the present invention are as follows: In the polymer sound insulation filler layer of the present invention, the synergistic effect of ethylene-vinyl acetate copolymer and polyolefin elastomer POE provides good matrix support and elastic buffering for the sound insulation layer, effectively reducing the vibration during sound wave transmission. The modified hollow glass microspheres, with their unique hollow structure, become natural sound insulation barriers, and significantly consume sound energy through the internal multiple reflection and scattering mechanism. At the same time, the titanium dioxide coating layer on the surface of the microspheres enhances the interaction between sound waves and the material surface, further improving the sound wave attenuation effect. The rough and porous surface of the modified expanded perlite and the modification treatment with a silane coupling agent enhance its contribution in the sound insulation layer. The two work together to form a dense sound insulation network, effectively blocking the sound transmission path, and are suitable for places with high requirements for sound control, such as meeting rooms, libraries, recording studios, etc.

[0022] The unique hollow structure of the modified hollow glass microspheres in the present invention makes them a natural sound insulation barrier. When sound waves encounter these microspheres, multiple reflections and scatterings will occur inside them, thereby consuming sound energy and reducing the transmission of sound waves; their high compressive strength, appropriate particle size distribution, and the strengthening effect of titanium dioxide jointly enhance the overall mechanical properties of the color steel plate.

[0023] After the modified expanded perlite is pretreated with an alkaline solution, the surface roughness increases, enhancing the interfacial bonding force between the expanded perlite and the matrix material, improving the toughening effect. Coupled with its unique expansion performance, it can effectively disperse and absorb stress when subjected to external forces, complementing the modified hollow glass microspheres, and jointly improving the compressive, bending, and impact resistance of the color steel plate, and extending the service life.

[0024] Materials such as ethylene-vinyl acetate copolymer and polyolefin elastomer POE in the polymer sound insulation filler layer of the present invention itself have good flame retardancy. In addition, during the preparation process of the modified hollow glass microspheres, the coating of titanium dioxide not only improves the sound insulation performance. The titanium dioxide coating layer on the surface of the modified hollow glass microspheres, as an inorganic substance, not only improves the sound insulation effect, but also, due to its high thermal stability and chemical stability, maintains the structural integrity at high temperatures, effectively slowing down the spread of fire, providing additional flame retardant protection for the color steel plate. Detailed implementation manners

[0025] The technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. It should be noted that all raw materials can be obtained commercially. Example 1

[0026] This example provides a color steel plate with a polymer sound insulation filler, which includes an upper steel plate, a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphate acyl) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring to disperse, heating to 70°C, adding an aqueous solution of titanium sulfate with a mass concentration of 12%, reacting for 3.5 h, filtering, washing after completion, and drying at 60°C for 10 h, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700°C for 2.5 h, and then calcining at 930°C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate, and titanium sulfate is 10:1.5:7; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in an acidic hydrogen peroxide solution, stirring under magnetic stirring conditions at a temperature of 90°C and a rotation speed of 150 rpm for 40 min, washing with water to neutrality after cooling, and drying at 60°C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a hydrolyzed solution of a silane coupling agent, stirring at a temperature of 65°C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, and then drying at 70°C for 5 h, and grinding after drying to obtain; The method for pretreatment with an alkaline solution includes: immersing expanded perlite in a sodium hydroxide solution with pH = 13.5, performing ultrasonic treatment at 65°C for 45 min, washing three times with deionized water after cooling to room temperature, and then drying at 70°C for 5 h; The preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 to deionized water, making the pH of the solution less than 7 with 15 wt% glacial acetic acid, and then continuously stirring at 250 rpm for 45 min to obtain it; The volume ratio of anhydrous ethanol used for dispersing expanded perlite to deionized water used for preparing the silane coupling agent hydrolysis solution is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of expanded perlite. Example 2

[0027] This example provides a color steel plate with a polymer sound insulation filler, which includes an upper steel plate, a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 55 parts of ethylene-vinyl acetate copolymer, 25 parts of polyolefin elastomer POE, 85 parts of modified hollow glass microspheres, 20 parts of modified expanded perlite, 2.5 parts of isopropyl tris(dioctylpyrophosphate acyloxy) titanate coupling agent, and 1.5 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 3%, stirring and dispersing, heating to 65°C, adding an aqueous solution of titanium sulfate with a mass concentration of 10%, reacting for 3 h, filtering, washing, and drying at 60°C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 680°C for 2 h, and then calcining at 920°C for 1 h; The weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate, and titanium sulfate is 10:1:6; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in a hydrogen peroxide acidic solution, stirring under magnetic stirring conditions at a temperature of 85°C and a rotation speed of 100 rpm for 35 min, washing with water to neutrality after cooling, and drying at 60°C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the hydrogen peroxide acidic solution is 1:8; The density of the hollow glass microspheres is 0.45 g / cm 3 , the compressive strength is 85 MPa, and the average particle size is 10 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a hydrolyzed solution of a silane coupling agent, stirring at a temperature of 60°C and a rotation speed of 100 rpm for 20 min, washing 3 times with absolute ethanol and filtering after completion, then drying at 60°C for 4 h, and grinding after drying to obtain the product; The method for alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13, ultrasonicating at 60°C for 40 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 60°C for 4 h; the preparation method of the hydrolyzed solution of the silane coupling agent is: adding the silane coupling agent KH560 to deionized water, adjusting the pH of the solution to less than 7 with 10 wt% glacial acetic acid, and then continuing to stir at 200 rpm for 40 min to obtain the product; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the hydrolyzed solution of the silane coupling agent is 5:1, and the mass of the silane coupling agent is 3% of the mass of the expanded perlite. Example 3

[0028] This example provides a color steel plate with a polymer sound insulation filler, which includes an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 65 parts of ethylene-vinyl acetate copolymer, 35 parts of polyolefin elastomer POE, 95 parts of modified hollow glass microspheres, 26 parts of modified expanded perlite, 3.5 parts of isopropyl tris(dioctylpyrophosphate acyloxy) titanate coupling agent, and 2.5 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 5% and stirring to disperse, heating to 75°C and adding an aqueous solution of titanium sulfate with a mass concentration of 14% to react for 4 h, filtering, washing and drying at 60°C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 720°C for 3 h, and then calcining at 940°C for 2 h; the weight part ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:2:8; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in a hydrogen peroxide acidic solution, stirring under magnetic stirring conditions at a temperature of 95°C and a rotation speed of 200 rpm for 45 min, washing with water to neutrality after cooling, and drying at 60°C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the hydrogen peroxide acidic solution is 1:8; the density of the hollow glass microspheres is 0.55 g / cm 3, the compressive strength is 89 MPa and the average particle size is 20 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a silane coupling agent hydrolysis solution, stirring at a temperature of 70 °C and a rotation speed of 200 rpm for 30 min, washing 4 times with absolute ethanol and filtering after completion, and then drying at 80 °C for 6 h, and grinding after drying to obtain it; The method of alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with pH = 14, ultrasonically treating at 70 °C for 50 min, washing 4 times with deionized water after cooling to room temperature, and then drying at 80 °C for 6 h; the preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 to deionized water, making the solution pH less than 7 with 20 wt% glacial acetic acid, and then continuing to stir at 300 rpm for 50 min to obtain it; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the silane coupling agent hydrolysis solution is 6:1, and the mass of the silane coupling agent is 4% of the mass of the expanded perlite.

[0029] Comparative Example 1

[0030] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring to disperse, heating to 70 °C and adding an aqueous solution of titanium sulfate with a mass concentration of 12% to react for 3.5 h, filtering, washing and drying at 60 °C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700 °C for 2.5 h, and then calcining at 930 °C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:1.5:7; The activation method of the hollow glass microspheres is: immersing the expanded perlite in a sodium hydroxide solution with pH = 13.5, ultrasonically treating at 65 °C for 45 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 70 °C for 5 h to obtain the activated hollow glass microspheres; The density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a silane coupling agent hydrolysis solution, stirring at a temperature of 65 °C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, and then drying at 70 °C for 5 h, and grinding after drying to obtain it; The method of alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13.5, ultrasonically treating at 65 °C for 45 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 70 °C for 5 h; the preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 to deionized water, making the pH of the solution less than 7 with 15 wt% glacial acetic acid, and then continuing to stir at 250 rpm for 45 min to obtain it; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the silane coupling agent hydrolysis solution is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0031] Comparative Example 2

[0032] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate, a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato)titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring for dispersion, heating to 70 °C and adding an aqueous solution of titanium sulfate with a mass concentration of 12% to react for 3.5 h, filtering, washing and drying at 60 °C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700 °C for 2.5 h, and then calcining at 930 °C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:1.5:7; The density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a hydrolyzed solution of a silane coupling agent, stirring at a temperature of 65 °C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, then drying at 70 °C for 5 h, and grinding after drying to obtain it; The method for alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13.5, ultrasonically treating at 65 °C for 45 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 70 °C for 5 h; The preparation method of the hydrolyzed solution of the silane coupling agent is: adding the silane coupling agent KH560 to deionized water, adjusting the pH of the solution to less than 7 with 15 wt% glacial acetic acid, and then continuing to stir at 250 rpm for 45 min to obtain it; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the hydrolyzed solution of the silane coupling agent is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0033] Comparative Example 3

[0034] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato)titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; The preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a hydrolyzed solution of a silane coupling agent, stirring at a temperature of 65 °C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, then drying at 70 °C for 5 h, and grinding after drying to obtain it; The method for alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13.5, ultrasonically treating at 65 °C for 45 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 70 °C for 5 h; The preparation method of the hydrolyzed solution of the silane coupling agent is: adding the silane coupling agent KH560 to deionized water, adjusting the pH of the solution to less than 7 with 15 wt% glacial acetic acid, and then continuing to stir at 250 rpm for 45 min to obtain it; The volume ratio of absolute ethanol used for expanding perlite dispersion to deionized water used for preparing the hydrolyzed solution of silane coupling agent is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0035] Comparative Example 4

[0036] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate, a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres into an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring to disperse, heating to 70°C, adding an aqueous solution of titanium sulfate with a mass concentration of 12%, reacting for 3.5 h, filtering, washing after completion, and drying at 60°C for 10 h, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700°C for 2.5 h, and then calcining at 930°C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate, and titanium sulfate is 10:1.5:7; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in an acidic hydrogen peroxide solution, stirring under magnetic stirring conditions at a temperature of 90°C and a rotation speed of 150 rpm for 40 min, washing with water to neutrality after cooling, and drying at 60°C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 50 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding the hydrolyzed solution of the silane coupling agent, stirring at a temperature of 65°C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, and then drying at 70°C for 5 h, and grinding after drying to obtain; The method for alkaline solution pretreatment includes: immersing expanded perlite in a sodium hydroxide solution with pH = 13.5, ultrasonicating for 45 min at 65 °C, washing 3 times with deionized water after cooling to room temperature, and then drying at 70 °C for 5 h; The preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 into deionized water, making the solution pH less than 7 with 15 wt% glacial acetic acid, and then continuously stirring for 45 min at 250 rpm to obtain it; The volume ratio of anhydrous ethanol used for dispersing expanded perlite to deionized water used for preparing the silane coupling agent hydrolysis solution is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of expanded perlite.

[0037] Comparative Example 5

[0038] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyltris(dioctylpyrophosphate acyloxy) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres into an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4%, stirring and dispersing, heating to 70 °C, adding an aqueous solution of titanium sulfate with a mass concentration of 12% and reacting for 3.5 h, filtering, washing after completion, and drying at 60 °C for 10 h, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 930 °C for 4 h; The weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate, and titanium sulfate is 10:1.5:7; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in a hydrogen peroxide acidic solution, stirring under magnetic stirring conditions at a temperature of 90 °C and a rotation speed of 150 rpm for 40 min, washing with water to neutrality after cooling, and drying at 60 °C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the hydrogen peroxide acidic solution is 1:8; The density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a hydrolyzed solution of a silane coupling agent, stirring at a temperature of 65°C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, then drying at 70°C for 5 h, and grinding after drying to obtain it; The method for alkaline solution pretreatment includes: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13.5, ultrasonicating at 65°C for 45 min, washing 3 times with deionized water after cooling to room temperature, and then drying at 70°C for 5 h; The preparation method of the hydrolyzed solution of the silane coupling agent is: adding the silane coupling agent KH560 to deionized water, making the pH of the solution less than 7 with 15 wt% glacial acetic acid, and then continuing to stir at 250 rpm for 45 min to obtain it; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the hydrolyzed solution of the silane coupling agent is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0039] Comparative Example 6

[0040] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring to disperse, heating to 70°C and adding an aqueous solution of titanium sulfate with a mass concentration of 12% to react for 3.5 h, filtering, washing and drying at 60°C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700°C for 2.5 h, and then calcining at 930°C for 1.5 h; The weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:1.5:7; The activation method of the hollow glass microspheres is: immersing the hollow glass microspheres in an acidic hydrogen peroxide solution, stirring under magnetic stirring at a temperature of 90°C and a rotation speed of 150 rpm for 40 min, washing with water to neutrality after cooling, and drying at 60°C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: dispersing the expanded perlite pretreated with an alkaline solution in absolute ethanol, then adding a silane coupling agent hydrolysis solution, stirring at a temperature of 65 °C and a rotation speed of 150 rpm for 25 min, washing 3 times with absolute ethanol and filtering after completion, and then drying at 70 °C for 5 h, and grinding after drying to obtain; The method of alkaline solution pretreatment includes: immersing the expanded perlite in the acidic hydrogen peroxide solution, stirring under magnetic stirring conditions at a temperature of 90 °C and a rotation speed of 150 rpm for 40 min, washing with water to neutral after cooling, and drying at 60 °C for 8 h to obtain; the volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; The preparation method of the silane coupling agent hydrolysis solution is: adding the silane coupling agent KH560 to deionized water, making the pH of the solution less than 7 with 15 wt% glacial acetic acid, and then continuing to stir at 250 rpm for 45 min to obtain; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the silane coupling agent hydrolysis solution is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0041] Comparative Example 7

[0042] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of modified expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stirring to disperse, heating to 70 °C and adding an aqueous solution of titanium sulfate with a mass concentration of 12% to react for 3.5 h, filtering, washing and drying at 60 °C for 10 h after completion, and calcining the dried product to obtain the modified hollow glass microspheres; The calcination step includes: calcining at 700 °C for 2.5 h, and then calcining at 930 °C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:1.5:7; The activation method of hollow glass microspheres is as follows: Immerse the hollow glass microspheres in an acidic hydrogen peroxide solution, stir for 40 min under magnetic stirring conditions at a temperature of 90 °C and a rotation speed of 150 rpm, wash with water to neutrality after cooling, and dry at 60 °C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm; Among them, the preparation method of the modified expanded perlite includes: Disperse the expanded perlite in absolute ethanol, then add the hydrolyzed solution of the silane coupling agent, stir at a temperature of 65 °C and a rotation speed of 150 rpm for 25 min, wash 3 times with absolute ethanol and filter after completion, and then dry at 70 °C for 5 h, and grind after drying to obtain; The preparation method of the hydrolyzed solution of the silane coupling agent is: Add the silane coupling agent KH560 to deionized water, adjust the pH of the solution to less than 7 with 15 wt% glacial acetic acid, and then continue to stir at 250 rpm for 45 min to obtain; The volume ratio of the absolute ethanol used for dispersing the expanded perlite to the deionized water used for preparing the hydrolyzed solution of the silane coupling agent is 5.5:1, and the mass of the silane coupling agent is 3.5% of the mass of the expanded perlite.

[0043] Comparative Example 8

[0044] This comparative example provides a color steel plate with a polymer sound insulation filler, including an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer includes the following materials in parts by weight: 60 parts of ethylene-vinyl acetate copolymer, 30 parts of polyolefin elastomer POE, 90 parts of modified hollow glass microspheres, 23 parts of expanded perlite, 3 parts of isopropyl tris(dioctylpyrophosphato) titanate coupling agent, and 2 parts of antioxidant CHEMNOX1010; Among them, the preparation method of the modified hollow glass microspheres includes: Add the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzenesulfonate with a mass concentration of 4% and stir to disperse, heat to 70 °C and add an aqueous solution of titanium sulfate with a mass concentration of 12% to react for 3.5 h, filter, wash and dry at 60 °C for 10 h after completion, and calcine the dried product to obtain the modified hollow glass microspheres; The calcination step includes: Calcining at 700 °C for 2.5 h, and then calcining at 930 °C for 1.5 h; the weight ratio of the activated hollow glass microspheres, sodium dodecylbenzenesulfonate and titanium sulfate is 10:1.5:7; The activation method of hollow glass microspheres is as follows: Immerse the hollow glass microspheres in an acidic hydrogen peroxide solution, stir for 40 min under magnetic stirring conditions at a temperature of 90 °C and a rotation speed of 150 rpm, wash with water to neutrality after cooling, and dry at 60 °C for 8 h to obtain the activated hollow glass microspheres; The volume ratio of hydrogen peroxide to sulfuric acid in the acidic hydrogen peroxide solution is 1:8; the density of the hollow glass microspheres is 0.5 g / cm 3 , the compressive strength is 87 MPa, and the average particle size is 15 μm.

[0045] Test example: Blend the raw materials of the polymer sound insulation filler layer in the foregoing Examples 1-3 and Comparative Examples 1-8, put them into a mixer preheated to 180 °C, knead for 30 min, and then send them to an extruder to extrude the material through a flat die orifice. The rotation speed of the extruder is 200 r / min, the extrusion temperature is 120 °C, and the thickness of the sound insulation filler is 1 mm; the performance test results are shown in Table 1 below:

[0046] Finally, it should be noted that the above examples are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced; and all technical solutions and their improvements that do not depart from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

Claims

1. A color steel plate with high molecular sound insulation filler, characterized in that: It includes an upper steel plate and a lower steel plate, and a polymer sound insulation filler layer located between the upper steel plate and the lower steel plate; The polymer sound insulation filler layer comprises the following materials in parts by weight: 55-65 parts of ethylene-vinyl acetate copolymer, 25-35 parts of polyolefin elastomer POE, 85-95 parts of modified hollow glass microspheres, 20-26 parts of modified expanded perlite, 2.5-3.5 parts of coupling agent, and 1.5-2.5 parts of anti-aging agent.

2. The color steel plate with polymer sound insulation filler according to claim 1, characterized in that: The preparation method of the modified hollow glass microspheres comprises: adding the activated hollow glass microspheres to an aqueous solution of sodium dodecylbenzene sulfonate with a mass concentration of 3-5%, stirring and dispersing, heating to 65-75° C., adding an aqueous solution of titanium sulfate with a mass concentration of 10-14%, reacting for 3-4 hours, filtering, washing and drying after the reaction, and calcining the dried product to obtain the modified hollow glass microspheres.

3. The color steel plate with polymer sound insulation filler according to claim 2, characterized in that: The hollow glass microsphere activation method comprises: immersing the hollow glass microsphere in a hydrogen peroxide acid solution, stirring for 35-45 minutes under magnetic stirring conditions at a temperature of 85-95° C. and a rotation speed of 100-200 rpm, cooling and washing with water to neutrality, and drying to obtain the activated hollow glass microsphere.

4. The color-coated steel plate with polymer sound-insulating filler according to claim 3, characterized in that: The density of the hollow glass microspheres is 0.45-0.55 g / cm 3 , compressive strength is 85-89MPa, and average particle size is 10-20μm.

5. The color steel plate with polymer sound insulation filler according to claim 2, characterized in that: The weight ratio of the activated hollow glass microspheres, sodium dodecylbenzene sulfonate and titanium sulfate is 10:(1-2):(6-8).

6. The color steel plate with polymer sound insulation filler according to claim 2, characterized in that: The calcination step comprises: calcining at 680-720° C. for 2-3 hours, and then calcining at 920-940° C. for 1-2 hours.

7. The color-coated steel plate with polymer sound-insulating filler according to claim 1, characterized in that: The preparation method of the modified expanded perlite comprises: dispersing the expanded perlite pretreated with an alkaline solution in anhydrous ethanol, then adding a silane coupling agent hydrolyzate, stirring for 20-30 minutes at a temperature of 60-70° C. and a rotation speed of 100-200 rpm, washing with anhydrous ethanol for 3-4 times and filtering, then drying at 60-80° C. for 4-6 hours, and grinding after drying to obtain the modified expanded perlite.

8. The color steel plate with polymer sound insulation filler according to claim 7, characterized in that: The alkaline solution pretreatment method comprises: immersing the expanded perlite in a sodium hydroxide solution with a pH of 13-14, ultrasonicating for 40-50 minutes at 60-70° C., cooling to room temperature, washing with deionized water for 3-4 times, and then drying at 60-80° C. for 4-6 hours.

9. The color-coated steel plate with high molecular sound insulation filler according to claim 7, characterized in that: The preparation method of the silane coupling agent hydrolyzate is as follows: adding the silane coupling agent KH560 into deionized water, using 10-20wt% glacial acetic acid to make the pH value of the solution less than 7, and then continuing to stir at 200-300 rpm for 40-50 minutes to obtain the obtained solution.

10. The color steel plate with polymer sound insulation filler according to claim 9, characterized in that: The volume ratio of anhydrous ethanol used for dispersing the expanded perlite to deionized water used for preparing the silane coupling agent hydrolyzate is (5-6):1, and the mass of the silane coupling agent is 3-4% of the mass of the expanded perlite.

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