Modularized plate type viscoelastic damper and preparation method thereof

Abstract

The invention relates to the technical field of shock absorption and seismic resistance of buildings, in particular to a modular plate type viscoelastic damper and a preparation method thereof. The modular plate-type viscoelastic damper comprises a rigid connecting layer, a viscoelastic damping layer and a rigid connecting layer which are sequentially arranged from top to bottom. The viscoelastic damping layer is made of a viscoelastic damping material; the viscoelastic damping material is prepared from the following raw materials in parts by mass: 60 to 100 parts of halogenated butyl rubber, 0 to 40 parts of polar rubber, 15 to 50 parts of tackifying resin, 50 to 200 parts of polyisobutene, 40 to 150 parts of filler, 1 to 8 parts of anti-aging agent, 0 to 20 parts of plasticizer and 0 to 8 parts of antioxidant. The modular plate-type viscoelastic damper is formed by curing at room temperature after the rigid connecting layer and the viscoelastic damping layer are attached, has the advantages of being simple in production process, environmentally friendly, free in splicing, easy to install and the like, has excellent energy dissipation capacity and restorability, and can be used in an infilled wall.

Description

Technical Field

[0001] The present invention relates to the technical field of building shock absorption and earthquake resistance, and particularly relates to a modular plate viscoelastic damper and a preparation method thereof. Background Art

[0002] A viscoelastic damper is a shock-absorbing and energy-dissipating device formed by laminating multiple layers of internal viscoelastic damping materials and multiple layers of internal steel plates and vulcanizing them integrally. The viscoelastic damper is connected to the embedded steel plate in the building as a whole through the external constraint steel plate, and absorbs and dissipates the vibration energy through the viscoelastic characteristics of the viscoelastic material itself.

[0003] The viscoelastic damping material is used in various shock-absorbing fields. This material is made into a viscoelastic damper and applied to buildings to reduce wind vibration or seismic action. The above-mentioned viscoelastic damping material is based on rubber. To increase energy dissipation, a large amount of fillers such as carbon black and silica, or tackifying agents such as petroleum resin and organic small molecules are usually added. The constraint steel plate and the viscoelastic material are formed into one body through adhesive hot vulcanization. Finally, the damper is connected to the steel in the cantilever wall to play the role of energy dissipation. Therefore, this type of viscoelastic damper cannot be applied in the infill wall, and there are limitations in use.

[0004] Compared with the viscoelastic damper, the modular plate viscoelastic damper prepared by the present invention has strong energy dissipation ability of the energy dissipation material and has restorability. The rigid connection material on the side of the damper has high strength and hardness and can be fully attached to the energy dissipation material. At the same time, the reserved groove can be filled with mortar to effectively form an integral body with the infill wall, improving the shock absorption and earthquake resistance ability of the building. Summary of the Invention

[0005] Based on the above, the present invention provides a modular plate viscoelastic damper and a preparation method thereof. The production process of the present invention is simple and environmentally friendly. The prepared modular plate viscoelastic damper can be arbitrarily spliced, is easy to install, and has excellent energy dissipation ability and restorability, and can be used in the infill wall.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] One of the technical solutions of the present invention is a viscoelastic damping material. By mass, the raw materials include: 60-100 parts of halogenated butyl rubber, 0-40 parts of polar rubber, 15-50 parts of tackifying resin, 50-200 parts of polyisobutylene, 40-150 parts of filler, 1-8 parts of antioxidant, 0-20 parts of plasticizer, and 0-8 parts of antioxidant.

[0008] Another technical solution of the present invention is a preparation method of the viscoelastic damping material. Mix the raw materials according to mass to carry out mixing and kneading to obtain the viscoelastic damping material.

[0009] The third technical solution of the present invention is a modular plate-type viscoelastic damper, which includes a rigid connection layer, a viscoelastic damping layer, and a rigid connection layer arranged in sequence from top to bottom;

[0010] The viscoelastic damping layer is made of the above-mentioned viscoelastic damping material;

[0011] By mass fraction, the raw materials of the rigid connection layer include: 100 parts of polar rubber, 0 - 100 parts of filler, 0 - 15 parts of tackifying resin, 0 - 30 parts of plasticizer, 10 - 30 parts of compatibilizer, 10 - 30 parts of epoxy resin, and 5 - 15 parts of epoxy resin curing agent;

[0012] The polar rubber is the same as the above-mentioned polar rubber; the filler is the same as the above-mentioned filler; the tackifying resin is the same as the above-mentioned tackifying resin; the plasticizer is the same as the above-mentioned plasticizer.

[0013] The fourth technical solution of the present invention is a preparation method of the above-mentioned modular plate-type viscoelastic damper, which includes the following steps:

[0014] Mix the raw materials of each rigid connection layer by mass fraction and then carry out mixing to obtain the rigid connection layer material;

[0015] Press the rigid connection layer material into a rigid connection layer through a mold;

[0016] Press the viscoelastic damping material into a viscoelastic damping layer;

[0017] Composite the rigid connection layer and the viscoelastic damping layer in the order of rigid connection layer, viscoelastic damping layer, and rigid connection layer from top to bottom, and then cure to obtain the modular plate-type viscoelastic damper.

[0018] The fifth technical solution of the present invention is the application of the above-mentioned modular plate-type viscoelastic damper in the construction field.

[0019] The present invention discloses the following technical effects:

[0020] The viscoelastic damping material of the present invention uses halogenated butyl rubber as the main material. Its molecular chain has more branches, which can endow the damping material with good energy dissipation performance and elasticity. At the same time, adding polyisobutylene (medium molecular weight polyisobutylene) with good compatibility can further improve the energy dissipation performance of the viscoelastic material. At the same time, polyisobutylene has good adhesiveness and recovery, which can improve the recovery of the energy dissipation material and the adhesiveness with the restraint material.

[0021] When preparing the viscoelastic damping material, the present invention further adds a part of polar rubber material identical to the rigid connection to ensure the compatibility of the two materials at the interface joint. At the same time, the tackifying resin in the viscoelastic material can effectively improve the compatibility between the halogenated butyl rubber and the polar rubber, and broaden the use temperature and range of the viscoelastic damping material.

[0022] When preparing the viscoelastic damping material, the present invention further adds fillers to the main material, which can increase the friction between polymer materials, improve the energy dissipation capacity, and effectively adjust the shear modulus of the viscoelastic damping material when used in combination with a plasticizer (low molecular weight polyisobutylene).

[0023] The rigid connection layer material of the present invention uses polar rubber as the main body to increase the compatibility with epoxy resin, which is convenient for the processing and pre-forming of uncured liquid epoxy resin. At the same time, fillers are added to further increase the rigidity of the rigid connection layer material.

[0024] The modular plate-type viscoelastic damper of the present invention is formed by curing the rigid connection layer and the viscoelastic damping layer after fitting at room temperature, and has the characteristics of simple production process, environmental protection, arbitrary splicing, simple installation, etc. Moreover, the product has excellent energy dissipation capacity and recovery performance, and can be used in the infill wall for building shock absorption and earthquake resistance. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the overall structure of the viscoelastic damper.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the viscoelastic damper.

[0028] Figure 3 It is the dynamic force-displacement curve of the modular plate-type viscoelastic damper prepared in Example 5. Detailed Embodiments

[0029] The various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, characteristics, and implementation embodiments of the present invention.

[0030] It should be understood that the terms used in this invention are only for describing specific embodiments and are not intended to limit the invention. Additionally, for the numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Any intermediate value within any stated value or stated range, as well as each smaller range between any other stated value or intermediate value within the stated range, is also included in this invention. The upper and lower limits of these smaller ranges can be independently included or excluded from the range.

[0031] Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Although this invention only describes preferred methods and materials, any methods and materials similar or equivalent to those described herein can also be used in the implementation or testing of this invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials related to the said documents. In case of conflict with any incorporated document, the content of this specification shall prevail.

[0032] Without departing from the scope or spirit of this invention, various improvements and changes can be made to the specific embodiments of the description of this invention, which are obvious to those skilled in the art. Other embodiments obtained from the description of this invention are obvious to those skilled in the art. The description and examples of this invention are merely exemplary.

[0033] Regarding the use of "comprising", "including", "having", "containing", etc. herein, they are all open-ended terms, meaning including but not limited to.

[0034] The "parts" mentioned in this invention, unless otherwise specified, all represent parts by mass.

[0035] The "%" mentioned in this invention, unless otherwise specified, all represent mass percentages.

[0036] In a first aspect of this invention, a viscoelastic damping material is provided. By mass parts, the raw materials include: 60 - 100 parts of halogenated butyl rubber, 0 - 40 parts of polar rubber, 15 - 50 parts of tackifying resin, 50 - 200 parts of polyisobutylene, 40 - 150 parts of filler, 1 - 8 parts of antioxidant, 0 - 20 parts of plasticizer, and 0 - 8 parts of antioxidant.

[0037] In a preferred embodiment of this invention, by mass parts, the raw materials include: 60 - 80 parts of halogenated butyl rubber, 20 - 40 parts of polar rubber, 20 - 30 parts of tackifying resin, 130 - 200 parts of polyisobutylene, 70 - 90 parts of filler, 3 parts of antioxidant, 15 - 20 parts of plasticizer, and 8 parts of antioxidant.

[0038] In the present invention, when the amount of polar rubber exceeds 40 parts, the compatibility with polyisobutylene will deteriorate. When the amount of tackifying resin exceeds 50 parts, the permanent viscosity will deteriorate, and the performance of the product will be more affected by temperature. Too little or too much polyisobutylene is not conducive to the molding and processing of the product. When the amount of filler is too much, the fatigue resistance of the product will deteriorate. Therefore, the amounts of the respective raw materials are preferably limited to the above parameter ranges in the present invention.

[0039] In a preferred embodiment of the present invention, the polyhalobutyl rubber includes chlorobutyl rubber and / or bromobutyl rubber; the polar rubber includes at least one of nitrile rubber, chloroprene rubber, and epoxidized rubber; the tackifying resin includes petroleum resin and / or phenolic resin.

[0040] In the present invention, the petroleum resin can be at least one of C5 petroleum resin, C9 petroleum resin, hydrogenated modified C5 petroleum resin, and hydrogenated modified C9 petroleum resin. The present invention does not make a special limitation on the source of the petroleum resin, and it can be obtained through commercial channels.

[0041] In a preferred embodiment of the present invention, the molecular weight distribution of the polyisobutylene is 50,000 to 60,000; the filler is at least one of carbon black, silica, and calcium carbonate; the antioxidant is antioxidant 4010NA and / or antioxidant RD; the plasticizer is low molecular weight polyisobutylene with a molecular weight of 1,000 to 3,000; the antioxidant is antioxidant AO-80.

[0042] The second aspect of the present invention provides a method for preparing the viscoelastic damping material, in which the respective raw materials are mixed by mass parts and kneaded to obtain the viscoelastic damping material.

[0043] In the examples of the present invention, the method for preparing the viscoelastic damping material includes the following steps: The halobutyl rubber and the polar rubber are put into a mixer / kneader by mass parts and kneaded at 80 to 110 °C for 2 to 5 minutes, then the petroleum resin, antioxidant, and antioxidant are added and kneaded at 80 to 110 °C for 1 to 3 minutes. Finally, the filler, polyisobutylene, and plasticizer are added and kneaded at 80 to 110 °C for 1 to 5 minutes, and then taken out from the mixer / kneader to obtain the viscoelastic damping material.

[0044] The third aspect of the present invention provides a modular plate-type viscoelastic damper, which includes a rigid connection layer, a viscoelastic damping layer, and a rigid connection layer arranged in sequence from top to bottom;

[0045] The viscoelastic damping layer is made of the viscoelastic damping material;

[0046] By mass parts, the raw materials of the rigid connection layer include: 100 parts of polar rubber, 0 - 100 parts of filler, 0 - 15 parts of tackifying resin, 0 - 30 parts of plasticizer, 10 - 30 parts of compatibilizer, 10 - 30 parts of epoxy resin, and 5 - 15 parts of epoxy resin curing agent;

[0047] The polar rubber is the same as the above-mentioned polar rubber; the filler is the same as the above-mentioned filler; the tackifying resin is the same as the above-mentioned tackifying resin; the plasticizer is the same as the above-mentioned plasticizer.

[0048] In a preferred embodiment of the present invention, the compatibilizer is maleic anhydride modified ethylene vinyl acetate copolymer with a vinyl acetate content of 10wt% - 22wt%; the epoxy resin is bisphenol A type; the epoxy resin curing agent is low molecular weight polyamide.

[0049] The fourth aspect of the present invention provides a preparation method of the modular plate viscoelastic damper as described above, including the following steps:

[0050] Mix the raw materials of each rigid connection layer by mass parts and then carry out kneading to obtain the rigid connection layer material;

[0051] Press the rigid connection layer material into a rigid connection layer through a mold;

[0052] Press the viscoelastic damping material into a viscoelastic damping layer;

[0053] Composite the rigid connection layer and the viscoelastic damping layer in the order of rigid connection layer, viscoelastic damping layer, and rigid connection layer from top to bottom, and then cure to obtain the modular plate viscoelastic damper.

[0054] In the embodiment of the present invention, when preparing the rigid connection layer material, the kneading parameter settings are as follows: Put the polar rubber into a mixer / kneader and knead at 80 - 110°C for 2 - 5 minutes, then add the tackifying resin and compatibilizer at 80 - 110°C and knead for 1 - 3 minutes, and finally add the filler, epoxy resin, and plasticizer at 80 - 110°C and knead for 1 - 5 minutes, then take it out of the mixer and place it on an open mill and add the epoxy resin curing agent to obtain the rigid connection layer material.

[0055] In some embodiments of the present invention, the rigid connection layer can be formed into a shape with one side flat and the other side having grooves through a mold. Pre - forming the rigid connection layer material into a groove shape can effectively embed it in the mortar to ensure the connection reliability. The present invention does not make special limitations on the specific dimensional parameters, which can be set according to actual applications.

[0056] The viscoelastic damping layer can be pressed into a sheet with a specific size through equipment such as an open mill and an extruder.

[0057] In a preferred embodiment of the present invention, the pressure of the compounding is 0.1 Mpa to 5 Mpa, the temperature is 40 to 70 °C, and the time is 10 to 30 min; the curing is specifically curing at room temperature for 1 to 3 days.

[0058] The fifth aspect of the present invention provides the application of the modular plate viscoelastic damper in the construction field.

[0059] The loss factor of the sandwich-form modular plate viscoelastic damper prepared by the present invention is higher than 0.6, and the shear modulus is 0.05 to 0.1 MPa. It can be combined as needed to form modular plate viscoelastic dampers with different shapes and maximum damping forces. This damper has high deformation energy dissipation ability and reparability, and the installation and construction are simple and reliable. The modular plate viscoelastic damper of the present invention has a novel structure (in the present invention, the damper can be cut according to actual needs, and several models can also be spliced to obtain the required mechanical property requirements of the damper), the forming process is simple, and the modular plate viscoelastic damper has the characteristics of high energy consumption, simple connection, and can be combined and spliced as needed.

[0060] The technical solutions of the present invention, unless otherwise specified, are all conventional solutions in the art. The reagents or raw materials used, unless otherwise specified, are all purchased from commercial channels or have been made public.

[0061] The petroleum resin used in the examples of the present invention is a mixture of C5 petroleum resin and C9 petroleum resin with a mass ratio of 1:1; the medium molecular weight polyisobutylene used has a molecular weight distribution of 50,000 to 60,000; the low molecular weight polyisobutylene used has a molecular weight distribution of 1,000 to 3,000.

[0062] The compatibilizer used in the examples of the present invention is maleic anhydride-modified ethylene vinyl acetate copolymer, in which the vinyl acetate content is 10% to 22%.

[0063] The technical solutions provided by the present invention will be described in detail below in conjunction with the examples, but they should not be construed as limiting the protection scope of the present invention.

[0064] Example 1

[0065] This example provides a preparation method of a viscoelastic damping material for a modular plate viscoelastic damper, and the steps are as follows:

[0066] 60 parts of bromobutyl rubber, 40 parts of nitrile rubber, 20 parts of petroleum resin, 200 parts of medium molecular weight polyisobutylene, 60 parts of white carbon black, 10 parts of carbon black, 1.5 parts of antioxidant 4010NA, 1.5 parts of antioxidant RD, 20 parts of low molecular weight polyisobutylene and 8 parts of antioxidant AO-80 are kneaded evenly in a kneader to form a viscoelastic damping material.

[0067] Example 2

[0068] The difference from Example 1 is only that, by mass parts, the viscoelastic damping material is composed of 60 parts of bromobutyl rubber, 40 parts of nitrile rubber, 20 parts of petroleum resin, 180 parts of medium molecular weight polyisobutylene, 60 parts of silica, 10 parts of carbon black, 1.5 parts of antioxidant 4010NA, 1.5 parts of antioxidant RD, 20 parts of low molecular weight polyisobutylene, and 8 parts of antioxidant AO-80.

[0069] Example 3

[0070] The difference from Example 1 is only that, by mass parts, the viscoelastic damping material is composed of 80 parts of bromobutyl rubber, 20 parts of chloroprene rubber, 20 parts of petroleum resin, 150 parts of medium molecular weight polyisobutylene, 80 parts of silica, 10 parts of carbon black, 1.5 parts of antioxidant 4010NA, 1.5 parts of antioxidant RD, 20 parts of low molecular weight polyisobutylene, and 8 parts of antioxidant AO-80.

[0071] Example 4

[0072] The difference from Example 1 is only that, by mass parts, the viscoelastic damping material is composed of 60 parts of bromobutyl rubber, 40 parts of chloroprene rubber, 30 parts of petroleum resin, 130 parts of medium molecular weight polyisobutylene, 80 parts of silica, 10 parts of carbon black, 1.5 parts of antioxidant 4010NA, 1.5 parts of antioxidant RD, 15 parts of low molecular weight polyisobutylene, and 8 parts of antioxidant AO-80.

[0073] Example 5

[0074] This example provides a preparation method of a modular plate-type viscoelastic damper, and the steps are as follows:

[0075] (1) Preparation of the rigid connection layer material: Knead 100 mass parts of polar rubber (bromobutyl rubber), 70 mass parts of filler (silica), 10 mass parts of tackifying resin (phenolic resin), 15 mass parts of plasticizer (polyisobutylene PIB1300 with a molecular weight of 1300), 10 mass parts of compatibilizer (maleic anhydride-modified vinyl acetate EVA), 30 mass parts of epoxy resin (bisphenol A epoxy resin E51), and 15 mass parts of epoxy resin curing agent (polyamide curing agent 651) in a kneader to form the rigid connection layer material;

[0076] (2) Precast the rigid connection material in a mold with grooves to the required dimensions (dimension parameters: the thickness of the part in contact with the viscoelastic material is 2 mm, the groove depth is 8 mm, the width is 40 mm, and the length and width of the rigid layer are the same as those of the viscoelastic material) to obtain the precast rigid material; press the viscoelastic damping material prepared in Example 1 into the required sheet size (dimension parameters: the thickness of the damping material is 8 mm, the length is 400 mm, and the width is 200 mm); (in the actual preparation process, the dimension parameters can be adjusted according to actual needs)

[0077] (3) Lay the precast rigid material on both sides of the viscoelastic damping material, and press and bond them into one body under normal pressure and at 40 °C by an extruder. The pressing time is 10 min, and cure at room temperature for 2 days (1 - 3 days are all acceptable) to obtain the modular plate-type viscoelastic damper (the overall structural schematic diagram is as shown in Figure 1 shown, and the cross-sectional schematic diagram is as shown in Figure 2 shown).

[0078] Example 6

[0079] The difference from Example 5 is only that the viscoelastic damping material prepared in Example 1 is replaced by the viscoelastic damping material prepared in Example 2.

[0080] Example 7

[0081] The difference from Example 5 is only that the viscoelastic damping material prepared in Example 1 is replaced by the viscoelastic damping material prepared in Example 3.

[0082] Example 8

[0083] The difference from Example 5 is only that the viscoelastic damping material prepared in Example 1 is replaced by the viscoelastic damping material prepared in Example 4.

[0084] Table 1 shows the performance test results of the modular plate-type viscoelastic dampers prepared in Examples 5 - 8.

[0085] Table 1

[0086] Example 5 Example 6 Example 7 Example 8 Shear modulus / MPa 0.05 0.07 0.09 0.1 Loss factor / % 0.65 0.65 0.65 0.65

[0087] It can be seen from Table 1 that viscoelastic damping products with different shear moduli / maximum damping forces can be obtained according to the ratio, and the loss factor reaches 0.65, having a high energy dissipation capacity. At the same time, it is convenient for the combined use of plate-type viscoelastic dampers.

[0088] Figure 1 This is the schematic diagram of the viscoelastic damper of the present invention. In actual application, it can be used alone or in combination according to the wall size and the required design damping force. When in use, replace the mortar layer of the wall with the damper, and fill the mortar in the upper and lower grooves of the damper to connect it with the wall blocks as a whole.

[0089] Figure 2 The dynamic force-displacement curve of the modular plate viscoelastic damper prepared in Example 5. It can be seen from Figure 2 that the hysteresis curve of the plate viscoelastic damper is plump and it has strong energy dissipation capacity; in practical applications, multiple such products can be combined to achieve products with different designed damping forces.

[0090] In summary, the present invention discloses a modular plate viscoelastic damper and its preparation method. The material preparation process is simple and environmentally friendly, the damper has high energy dissipation capacity and recovery capacity, and the connection is simple and reliable.

[0091] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A viscoelastic damping material, characterized in that: Calculated by weight, the raw materials include: 60-100 parts of halogenated butyl rubber, 0-40 parts of polar rubber, 15-50 parts of tackifying resin, 50-200 parts of polyisobutylene, 40-150 parts of filler, 1-8 parts of antioxidant, 0-20 parts of plasticizer and 0-8 parts of antioxidant.

2. The viscoelastic damping material according to claim 1, characterized in that: Calculated by weight, the raw materials include: 60-80 parts of halogenated butyl rubber, 20-40 parts of polar rubber, 20-30 parts of tackifying resin, 130-200 parts of polyisobutylene, 70-90 parts of filler, 3 parts of antioxidant, 15-20 parts of plasticizer and 8 parts of antioxidant.

3. The viscoelastic damping material according to claim 1 or 2, characterized in that: The polyhalogenated butyl rubber includes chlorinated butyl rubber and / or brominated butyl rubber; the polar rubber includes at least one of nitrile rubber, chloroprene rubber, and epoxidized rubber; and the tackifying resin includes petroleum resin and / or phenolic resin.

4. The viscoelastic damping material according to claim 1 or 2, characterized in that: The molecular weight distribution of the polyisobutylene is 50,000 to 60,000; the filler is at least one of carbon black, white carbon black and calcium carbonate; the antioxidant is antioxidant 4010NA and / or antioxidant RD; the plasticizer is low molecular weight polyisobutylene with a molecular weight of 1000 to 3000; and the antioxidant is antioxidant AO-80.

5. A method for preparing the viscoelastic damping material according to claim 1 or 2, characterized in that: The raw materials are mixed and kneaded according to their mass fractions to obtain the viscoelastic damping material.

6. A modular plate-type viscoelastic damper, characterized in that: It includes a rigid connection layer, a viscoelastic damping layer and a rigid connection layer which are arranged in sequence from top to bottom; The viscoelastic damping layer is made of the viscoelastic damping material according to claim 1 or 2; The raw materials of the rigid connection layer include, by weight: 100 parts of polar rubber, 0-100 parts of filler, 0-15 parts of tackifying resin, 0-30 parts of plasticizer, 10-30 parts of compatibilizer, 10-30 parts of epoxy resin and 5-15 parts of epoxy resin curing agent; The polar rubber is the same as the polar rubber described in claim 1 or 2; the filler is the same as the filler described in claim 1 or 2; the tackifying resin is the same as the tackifying resin described in claim 1 or 2; and the plasticizer is the same as the plasticizer described in claim 1 or 2.

7. The modular plate-type viscoelastic damper according to claim 6, characterized in that: The compatibilizer is maleic anhydride modified ethylene vinyl acetate copolymer, with a vinyl acetate content of 10wt% to 22wt%; the epoxy resin is bisphenol A type; and the epoxy resin curing agent is low molecular weight polyamide.

8. A method for preparing a modular plate-type viscoelastic damper according to claim 6 or 7, characterized in that: The following steps are involved: The raw materials of each rigid connection layer are mixed according to mass fractions and then kneaded to obtain a rigid connection layer material; Pressing the rigid connection layer material into a rigid connection layer through a mold; pressing the viscoelastic damping material into a viscoelastic damping layer; The rigid connection layer and the viscoelastic damping layer are compounded in the order of the rigid connection layer, the viscoelastic damping layer and the rigid connection layer from top to bottom, and then cured to obtain the modular plate-type viscoelastic damper.

9. The method for preparing a modular plate-type viscoelastic damper according to claim 8, characterized in that: The compounding pressure is 0.1Mpa-5Mpa, the temperature is 40-70°C, and the time is 10-30min; the curing is specifically performed at room temperature for 1-3 days.

10. Application of the modular plate-type viscoelastic damper according to claim 6 or 7 in the field of construction.

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