1817results about "Flooring insulations" patented technology

The utility model discloses a mute floor which comprises a surface treatment layer, a protection layer, a decoration layer, a first carrier, a first buffer layer and a second carrier. The surface treatment layer is arranged on one side of the protection layer, the decoration layer is arranged on the other side of the protection layer, the first carrier is arranged between the decoration layer and the first buffer layer, the first buffer layer is arranged between the first carrier and the second carrier, and the first buffer layer is of a porous structure and / or a net structure. A buffer groove is formed in at least one side face of the first buffer layer and extends to the two ends of the side face. By arranging the floor with the first buffer layer with the porous and / or honeycomb structure, noise is reflected and refracted for multiple times in the porous and / or honeycomb structure, so that sound is attenuated, a sound wave propagation path is prolonged, and the effect of more effectively reducing noise propagation is achieved.

The invention discloses an assembly type efficient sound insulation cover convenient to install, and relates to the technical field of sound insulation covers. Comprising a plurality of pieces of main body square steel, the main body square steel are linearly and evenly distributed at equal intervals, jacking mechanisms used for improving the bottom supporting strength are arranged on the inner walls of the main body square steel correspondingly, and assembly type connecting mechanisms used for improving the connecting strength and stability are installed in the main body square steel correspondingly; according to the assembly type efficient sound insulation cover convenient to install, main body square steel is inserted and limited in a penetrating and inserting mode through the assembly type connecting mechanism, the defect that limiting performance is insufficient due to the fact that a lap joint mode is directly used in a traditional structure is overcome, the whole assembly process is simpler and more convenient, rubber pads and expansion water stop strips are arranged at splicing joints, and the assembly efficiency is improved. The vibration transmission of equipment can be blocked, the inherent frequency is kept away from the vibration frequency of the equipment, secondary noise caused by resonance is avoided, meanwhile, through gaps are reduced, the noise is prevented from leaking from the insertion hole position, and the problem of noise leakage is solved.

The invention provides a movable sound insulation dustproof construction shed, a plurality of supporting mechanisms are sequentially arranged in a shed body in the X-axis direction, and each supporting mechanism comprises two telescopic rods oppositely arranged in the Y-axis direction, a supporting assembly erected on the two telescopic rods and a walking assembly connected to the lower end of each telescopic rod; each telescopic rod is provided with a first limiting assembly used for limiting a sound insulation plate installed on the telescopic rod, and the supporting assembly comprises a first arc-shaped supporting rod and a second arc-shaped supporting rod which are used for supporting the shed body located at the upper ends of the two telescopic rods and can be oppositely folded. The walking assembly is used for driving each telescopic rod to move or stop, so that the problems that an existing dustproof noise reduction shed lacks comprehensive shielding and sound insulation measures on a device to be shielded, and sound insulation felt cloth is inconvenient to disassemble and assemble, so that the dustproof noise reduction effect and stability of the dustproof noise reduction shed are poor are solved.

The utility model belongs to the technical field of building materials, and relates to an anti-skidding and shock-absorbing mute composite floor which sequentially comprises a resin layer, a mute layer, a base material layer, a balance layer and a shock-absorbing layer from top to bottom. Wherein the mute layer is a cork layer, and the thickness of the mute layer is 2-4 mm; the base material layer is a plywood layer, and the thickness of the base material layer is 7-9 mm; the balance layer is a plywood layer, and grooves which are uniformly distributed in parallel are formed in the surface of the balance layer; the damping layer is a foaming material layer, the thickness of the damping layer is 4-6 mm, and the damping layer is provided with evenly-distributed air channels. The mute layer is made of cork, is light in density and has soft and elastic touch feeling, cells of the cork are of a honeycomb structure filled with gas, have low conductivity on heat, noise and vibration and have a synergistic effect with the foaming damping layer at the bottom, and the surface is coated with the anti-skid coating with good flexibility, so that the anti-skid damping mute floor has a good impact sound absorption effect; the impact absorption performance is excellent, the head injury evaluation value is low, and the protection and mute effects are achieved.

The invention discloses a damping and sound-absorbing wood composite floor suitable for aging, which is strictly and orderly compounded according to a four-layer structure from top to bottom, and all layers are clear in division of labor and have a synergistic effect to form an organic whole with complementary functions: the first layer is a wood grain facing layer; the second layer is a cushioning layer; the third layer is a wood core layer; the fourth layer is a sound absorption layer; the preparation method of the damping and sound-absorbing wood composite floor suitable for aging comprises the following steps that firstly, all the layers are evenly coated with waterborne polyurethane environment-friendly adhesives through high-precision gluing equipment, and the gluing amount is 120-150 g / m < 2 >; 2, hot-pressing compounding: during hot-pressing compounding, controlling the temperature to be 120-140 DEG C, the pressure to be 8-12MPa, the time to be 8-10 minutes and the peel strength to be greater than or equal to 1.5 N / mm, and meanwhile, avoiding the performance degradation of the material caused by high temperature; the invention has the following beneficial effects: the noise within the frequency range of 100-5000 Hz is comprehensively reduced to 35-45 decibels; a weight of 60kg freely falls down at a height of 30cm, and the impact absorption value of the floor reaches 55-60%; a 24-hour boiling water dipping test shows that the water absorption thickness swelling rate is less than or equal to 8%; and the cost is reduced by 30-40%.

To provide a partition wall using wood finishing material and having excellent sound insulation performance.SOLUTION: A partition wall P includes sound insulators 11 and 12 arranged and erected facing each other at a predetermined interval, a wood finishing material 20 covering the surface of at least one of the sound insulators 11 and 12, and a support member 30 for the sound insulators 11 and 12 and the wood finishing material 20, which is interposed between the sound insulators 11 and 12. At a butt joint 25 of the wood finishing material 20, a flange 31b of the support member 30 is in contact with the sound insulator 11. The wood finishing material 20 is attached to the flange 31b of the support member 30 by means of a fitting (screw 17) that passes through the sound insulators 11 and 12.SELECTED DRAWING: Figure 1

A plant sound insulation screen comprises sound insulation plates continuously arranged on one side of a plant wall, a preset interval is formed between every two adjacent sound insulation plates, and supports are arranged at the positions, corresponding to the adjacent sound insulation plates, of the wall. The support is of a metal plate structure, the lower end of the support is provided with a supporting plate perpendicular to the enclosing wall and extending outwards and used for supporting the bottom faces of the ends of the sound insulation plates, the top of the support is flush with or higher than the top faces of the sound insulation plates, and the width of the support is larger than the interval between the adjacent sound insulation plates. The bracket is fixed on the surface of an enclosing wall through expansion screws; locking screws are vertically arranged on the support in a penetrating mode and located in the intervals between the adjacent sound insulation plates, and pressing plates are arranged on the locking screws in a sleeving mode and used for pressing the side portions of the sound insulation plates. The scheme facilitates later replacement of the sound insulation board, is more convenient to disassemble and assemble, and can effectively ensure the uniformity and sound insulation effect of the sound insulation screen before and after replacement of the sound insulation board.

The invention describes a subfloor or a split subfloor system for use in the construction of a portable deck. The proposed subfloor system can be installed without any special skill set or tools. The subfloor comprises of several footings that are arranged on the ground, at least two pre-notched beams that are placed on the footings, at least two pre-notched joists that rest perpendicularly on the pre-notched beams, at least two frame units that rest perpendicularly on the pre-notched beams in a direction parallel to the pre-notched joists, and at least one rim joist secured to each end of the pre-notched joists and the frame units. These components of the subfloor system could also be split in two or more pieces for a split subfloor system that makes transportation easier. A kit comprising the components of the subfloor system and a method of construction is also provided.

An acoustic baffle system that includes an acoustic baffle coupler, an acoustic baffle, and one or more fasteners to secure the acoustic baffle system to a ceiling. The acoustic baffle coupler includes a body comprising an upper end, a first lateral end, a second lateral end, a lower end, a slot defined in the upper end and extending from a first end to a second end, a first channel defined in the first lateral end and extending from the first end to the second end, and a second channel defined in the second lateral end and extending from the first end to the second end. An acoustic baffle is secured into the first and second channels of the acoustic baffle coupler. The one or more fasteners are disposed within the slot of the acoustic baffle coupler and the one or more fasteners are secured to the ceiling.

The invention relates to the technical field of building materials, in particular to a bio-based multifunctional sound insulation wallboard and a preparation method thereof. The wallboard comprises a sound absorption layer and a sound insulation layer. The sound absorption layer is cooperatively constructed by an inactivated mycelium three-dimensional porous framework and microalgae biomass, and the sound insulation layer is a high-density complex formed by compounding bio-based raw materials such as wood fiber, straw, recycled paper pulp and shell filler. And the two are combined through a biological-physical mechanical interlocking interface formed by hypha growth, extension and embedding to form a natural acoustic gradient structure from porous low acoustic impedance to compact high acoustic impedance. According to the preparation method, an in-situ growth process of mycelium culture and microalgae coating is embedded into a hot-pressing process, a three-dimensional anchoring network is formed by actively embedding mycelia into the sound insulation layer, the microalgae permeates into pores and is subjected to hot pressing to generate biomacromolecules for bonding and filling, a porous structure is synchronously constructed by a one-step method, and firm interlayer bonding is realized. The wallboard has excellent broadband acoustic performance, stable bonding strength and low-carbon and environment-friendly benefits.

The invention belongs to the technical field of automatic control, and particularly relates to a large-span ellipsoidal glass structure space noise reduction method based on sound field optimization, and the method comprises the steps: 1, transmitting a sample noise in an ellipsoidal glass structure through a sound wave generator, building a sound wave propagation model to describe the behavior of the sample noise in the ellipsoidal structure, an incident sound field is obtained; 2, analyzing the propagation characteristics of the sample noise in the ellipsoidal glass structure to obtain an acoustic structure coupling equation, and solving the acoustic structure coupling equation to obtain structural vibration displacement; 3, obtaining a sound radiation field of the ellipsoidal glass structure according to the structural vibration displacement; and step 4, combining the incident sound field and the sound radiation field, and performing spatial noise reduction by reflecting the sound pressure of the sound field. According to the method, the problems of poor adaptability and low control precision of a traditional noise reduction method in a non-uniform structure are effectively solved, and the noise reduction efficiency, the control sensitivity and the environment adaptability of a building space are remarkably improved.

The invention provides a high-strength sound-insulation fireproof composite board, and relates to the technical field of composite boards. The frame body is of an H-shaped structure, and aerogel is arranged at the two ends of the inner side of the frame body; the frame body is provided with the sound insulation plates, the sound insulation plates are symmetrically arranged at the two ends of the inner side of the frame body, noise sound waves penetrate through the fireproof plates and then are reflected and refracted multiple times in the spiral sound absorption holes, the sound wave propagation path is effectively disturbed, the efficient sound absorption characteristic of aerogel is matched, and a multi-stage attenuation mechanism for noise of different frequency bands such as high frequency and low frequency is formed. Compared with a traditional single-material sound insulation mode, the composite structure breaks through the bottleneck of sound insulation performance, can meet the noise reduction requirements in complex noise environments such as building decoration and industrial factory buildings, and solves the problems that a traditional board mostly depends on a single sound insulation material to achieve the noise reduction function, systematic acoustic structure design and the material synergistic effect are lacked, and the noise reduction effect is poor. The noise reduction requirements in complex noise environments such as high frequency, low frequency and the like are difficult to meet.

The present invention relates to a panel element, such as a floor panel, a wall panel, a ceiling panel or a decking panel. The panel element comprises a first substrate made of a synthetic composite material comprising at least 20% by weight of mineral material, and a second substrate made of a distance material embedded or recessed in the first substrate. The distance material has a bulk density which is lower than a bulk density of the synthetic composite material. The panel element comprises at least two opposing side edge portions formed solely by the first substrate. A method for forming a panel element and an extrusion device configured to form a panel element are also provided.

The utility model discloses a continuous fiber reinforced polyvinyl chloride (PVC) wood-plastic fireproof composite wood floor, which belongs to the technical field of composite floors and is characterized by comprising a composite floor, the composite floor comprises a base layer, a fireproof layer is arranged at the top of the base layer, and a first damp-proof layer is arranged at the top of the fireproof layer. A first damp-proof layer is arranged at the bottom of the base layer, a second damp-proof layer is arranged at the bottom of the base layer, and protective layers are arranged on the opposite sides of the first damp-proof layer and the second damp-proof layer. By arranging the fireproof layers, flame spreading can be effectively prevented when a fire disaster occurs, release of toxic smoke is reduced, and compared with an existing PVC wood-plastic composite floor, the fireproof performance is remarkably improved; the PVC wood-plastic composite floor is simple in structure and convenient to use, life safety and property safety of personnel can be better protected, the structural strength of the floor can be remarkably improved by arranging the reinforcing layer, and compared with an existing PVC wood-plastic composite floor, the PVC wood-plastic composite floor can bear larger pressure and impact force and effectively prevent the situation that the floor sinks, deforms and even breaks in the using process.

The utility model discloses a sound-proof decorative plate, which relates to the technical field of decorative plates and comprises a plate main body, the plate main body comprises a decorative plate and a base plate, a sound-proof plate is connected between the decorative plate and the base plate, and the sound-proof plate comprises a front sound-proof plate and a rear sound-proof plate. A plurality of cavity grooves are formed in one side of the front sound insulation plate and one side of the rear sound insulation plate, complex reflection and scattering paths can be formed through the sound insulation folded plates, the contact opportunity of sound waves and sound absorption materials is increased, the problem that the sound insulation effect of a decorative plate is poor is solved, and the sound insulation performance of the decorative plate is improved; the front sound insulation layer, the middle sound insulation layer and the rear sound insulation layer are matched with aperture decreasing, so that the decorative plate can specifically absorb sound waves of different frequencies, the effect of widening the sound absorption frequency band is achieved, the problem that the decorative plate is poor in sound absorption effect of different frequency bands is solved, and the absorption effect of the decorative plate on the sound of different frequency bands can be improved.

The invention discloses a sound chamber module system which is provided with walls on four sides and comprises a door to create an internal space, a main body frame arranged on one side of the wall, a video device arranged in the center of the main body frame and a plurality of audio devices arranged on two sides of the periphery of the video device, and the wall comprises a concrete layer. The sound absorption material layer is installed on the concrete layer, and the sponge component is doped with ferrite components. The sound absorption material layer comprises a semi-non-combustible sheet layer in which water and melamine resin powder are dissolved.

The application discloses a whole-house floor tile paving method, comprising the following steps: cleaning a base layer; uniformly mixing blast furnace slag and sand and uniformly dry paving the blast furnace slag and sand on the base layer to form a dry paving layer; determining a paving position of the floor tile on the dry paving layer; cleaning the floor tile and pre-wetting a sticking surface of the floor tile; uniformly spraying an alkali activator to the paving position of the floor tile, and then placing the floor tile flat to make the floor tile tightly combined with the dry paving layer; and cleaning the surface of the floor tile. The application has the beneficial effects that: the used gel material has high early strength, the blast furnace slag and sand are used for whole-house paving, the activator is pre-prepared, so that the construction period can be greatly saved; the blast furnace slag and sand are compacted after being used for whole-house paving, and the compacted blast furnace slag and sand are subjected to levelness verification, so that the deviation caused by manual paving and manual mortar stirring of workers is small compared with single paving; and the paving ground can be quickly put into normal use due to the fast bonding property of the used gel material.

The utility model discloses a shielding layer structure integrated design module, which comprises a first shielding layer, a second shielding layer arranged on the rear side of the first shielding layer, and a convenient splicing mechanism arranged inside and on the rear side of the first shielding layer. The convenient splicing mechanism comprises a triangular groove, a clamping groove, a triangular block, a clamping block, a second shielding layer, a connecting column, a fixing shaft, a spring, a clamping strip and a bayonet. According to the shielding layer structure integrated design module, wall shielding layers of a nuclear medicine and an accelerator can be rapidly spliced for installation by arranging a convenient splicing mechanism, the installation efficiency can be greatly improved, meanwhile, a structure bearing capacity strengthening mechanism is arranged, the bearing capacity of the shielding layers can be strengthened, and therefore the wall bodies are connected; in addition, a convenient-to-carry mechanism is arranged, a wall shielding layer can be stacked and limited, and convenience is provided for transportation and carrying.

The invention relates to an acoustic insulation product (5) comprising a panel (1) made of porous material, based on foam or fibres, comprising a first face, referred to as back face (20), intended to face towards a wall, and a second face, referred to as front face (30), situated on the opposite side to the back face (20), and a layer, referred to as backing layer (2), which adheres to or is linked or coupled at least in part to the back face (20) of the panel (1) made of porous material, the backing layer (2) having an airflow resistance of between 5 kPa.s / m and 20 kPa.s / m, preferably between 7 kPa.s / m and 15 kPa.s / m. The acoustic insulation product according to the invention is able to improve both acoustic insulation and noise absorption.

The utility model discloses a site protective frame for green construction of a high-rise plant, which relates to the technical field of protective frames and comprises two cross rods and two vertical rods, the two cross rods are fixedly connected with the two vertical rods, one end of each cross rod is fixedly provided with a mounting plate, one end of each cross rod is fixedly provided with a mounting frame I, and the other end of each cross rod is fixedly provided with a mounting frame II. A dustproof net is fixedly mounted on the inner wall of the first mounting frame, a second mounting frame and a sound insulation plate are arranged at one ends of the two transverse rods and the two vertical rods, a greening module is arranged on the inner wall of the second mounting frame, and a water inlet groove is formed in one end of each transverse rod; after the sliding rod is pushed, the sliding rod drives the L-shaped plate to move horizontally, so that collected rainwater can quickly flow out of the water inlet groove and irrigate plants through the flow guide plate, the utilization rate of the rainwater is effectively increased, the plants are irrigated in time, the probability that the plants are dried up is reduced, resources are saved, the greening effect can be improved, and the applicability is further improved.

The present application relates to the technical field of bathroom base plate, particularly relates to a leakproof assembled base plate for integral bathroom, which comprises a bottom support plate, a support outer frame, a supporting unit, a grid frame and a splicing plate, and can solve the following problems of the existing integral bathroom base plate: the gaps between the base plate modules cannot be compensated and sealed, thus water leakage is easy to occur, affecting the use effect; the slope of the base plate module cannot be adjusted, and it is difficult to drain water at the upper end of the base plate module; the present application can adjust the slope of the bathroom base plate by rotating the bolt to drive the positioning column to move up or down, so that the side of the inner bottom wall of the bathroom base plate near the drain gradually inclines downward as a whole, and the water at the upper end of the bathroom base plate flows to the inclined position, so as to accelerate the drainage speed and prevent water storage caused by small slope; the present application can insert the splicing plate between the support rod and the sealing baffle, and the jacking strip can jack up the splicing plate upward, so as to enhance the sealing strength between the splicing plate and the sealing baffle, thereby avoiding water leakage.

The invention relates to the technical field of building decoration, in particular to a heat preservation and sound insulation integrated furniture wall which comprises a furniture wall body, a plurality of adjusting assemblies and a plurality of inserting assemblies, and the furniture wall body comprises a plurality of modular wall bodies; the adjusting assembly comprises an adjusting cylinder and a rotating part, the adjusting cylinder is arranged in the arrangement direction of the side wall of the wall, two rotating grooves are formed in the side wall of the adjusting cylinder and arranged in the axis direction of the adjusting cylinder, the two rotating grooves are located on the same side of one longitudinal section of the adjusting cylinder, and the two rotating grooves are symmetrically arranged relative to the other longitudinal section. The rotating part comprises two rotating plates, the rotating plates correspond to the rotating grooves in a one-to-one mode, at least one rotating plate is rotationally connected with the adjusting cylinder, when the two modular wall bodies are connected at the corner of the wall body, the included angle of the two rotating plates is 90 degrees, and when the two modular wall bodies are connected at the plane of the wall body, the included angle of the two rotating plates is 180 degrees; the two rotating plates are connected with a plurality of plug-in assemblies; the method has the effect of improving the construction cost increase.

The invention relates to the technical field of green plant building, and discloses a self-adaptive noise reduction type green new energy low-carbon plant and a using method.The self-adaptive noise reduction type green new energy low-carbon plant comprises an outer wall arranged on the outer side of an inner wall, a sound insulation space is formed between the outer wall and the inner wall, and supporting columns are installed for supporting; first reflecting plates are rotationally arranged on the inner walls of the two sides of the inner wall, sound detection probes are arranged on the first reflecting plates, and an adjusting mechanism comprising a first rotating plate, a second rotating plate and an electromagnet is arranged between the first reflecting plates and the inner wall of the inner wall; an opening is formed in the top of the inner wall, a second reflecting plate is slidably mounted in the opening, and linkage mechanisms comprising rotating shafts and telescopic mechanisms are arranged on two sides of the second reflecting plate; the lower ends of the two second reflecting plates are connected with partition plates, and compartments are formed between the partition plates and the inner wall. In the invention, the noise centralized processing area is constructed through the sound insulation space and the honeycomb layer, an additional sound insulation cover is not needed, and the equipment flexibility is improved; the angle of the first reflecting plate is adjusted through the detection probe and the adjusting mechanism, the position of the second reflecting plate is synchronously adjusted through the linkage mechanism, noise is reflected into the sound insulation space to be absorbed, energy consumption is reduced, and carbon emission is reduced.

The utility model belongs to the field of floor heating, and particularly relates to a wet paving graphene floor heating system and a floor structure, the wet paving graphene floor heating system comprises a concrete layer, a waterproof layer, a graphene electric heating layer, an insulating layer, a heat preservation layer and a heat insulation layer which are sequentially paved from top to bottom, and aluminum foil is paved on the outer surface of the heat preservation layer. According to the wet laying graphene floor heating system, through the arrangement, the safety and the waterproof performance of the system are improved, and the heat loss is reduced.

The application discloses a construction method of a diamond sand floor, which can effectively prevent cracks from being generated on the floor after shrinkage by sinking a reinforcing mesh into fine stone concrete, so that the reinforcing mesh can generate effective tensile force on the surface of the fine stone concrete; in addition, the method realizes accurate control of the amount of diamond sand by spreading the diamond sand in unit areas, so that the situation that the diamond sand is excessively or insufficiently spread in local areas is avoided, the diamond sand is fully combined with cement slurry by spreading the diamond sand twice, so that the diamond sand is prevented from falling off in the later period; and the light smoothing machine is used to perform light collection and finishing in the cross direction, so that the surface of the floor is smooth and bright, the compactness of the wear-resistant layer is high, and the stain resistance and wear resistance of the wear-resistant layer are further improved.

This utility model relates to the field of building structure engineering technology and discloses a prefabricated octagonal grid structure, including a connecting frame. A connecting mechanism is provided at the top of the connecting frame to connect it. Multiple support rods are equidistantly arranged around the bottom wall of the connecting frame, and an energy supply mechanism is provided on the outer wall of each support rod to achieve energy self-sufficiency for the structure. The connecting mechanism includes a connecting frame located at the top of the connecting frame. Multiple connecting slots are equidistantly formed on the top wall of the connecting frame, and these slots engage with the connecting frame. In this utility model, the outer connecting parts of the grid unit are precisely aligned with the mounting holes on the support rods. Bolts are passed through and tightened to firmly connect the grid unit to the support rods, enhancing the stability and load-bearing capacity of the structure. Furthermore, the octagonal grid shape enriches the visual effect of the building and meets diverse aesthetic needs.

The invention relates to the technical field of building waterproof materials, in particular to a rubber waterstop for a deformation joint of a combined concrete floor. The rubber waterstop sequentially comprises a composite rubber plate, a self-adhesive rubber sheet and an elastic supporting strip from top to bottom. The composite rubber plate is composed of a modified rubber plate and a glass fabric reinforcing layer arranged on the top of the modified rubber plate. The modified rubber plate is prepared by the following method: putting 90-110 parts by weight of a rubber base material, 4-6 parts by weight of nano zinc oxide, 1-1.5 parts by weight of stearic acid, 2-3 parts by weight of an anti-aging agent, 8-12 parts by weight of a functional aid, 20-30 parts by weight of dioctyl phthalate, 15-30 parts by weight of carbon black, 20-40 parts by weight of kaolin and 1-2 parts by weight of an accelerant into an internal mixer for mixing; performing extrusion molding on the rubber compound by adopting an extruder or a calender, and then performing cutting treatment, thereby obtaining the product. The rubber waterstop provided by the invention not only has excellent waterproof and dynamic sealing effects, but also has excellent mechanical properties and aging resistance; meanwhile, installation is flexible and efficient, and construction and later maintenance cost is reduced.

The invention provides a polymer floor and a preparation method thereof. The floor sequentially comprises a first outer layer, a first buffer layer, a first bonding layer, a base material layer, a second bonding layer, a second buffer layer and a second outer layer from top to bottom, wherein the base material layer is made of a first polymer, and the first polymer is selected from one or a mixture of more of PVC (polyvinyl chloride), PET (polyethylene glycol terephthalate), PETG (polyethylene glycol terephthalate) and TPU (thermoplastic polyurethane); wherein the first buffer layer and the second buffer layer are respectively and independently selected from one or more of non-woven fabrics and glass fiber mats; wherein the first bonding layer and the second bonding layer are blended membranes of grafted resin and a second polymer, and the second polymer is selected from one or a mixture of more of TPU (thermoplastic polyurethane), EAA (ethylene-acrylic acid copolymer) and PETG (polyethylene terephthalate glycol); wherein the first outer layer and the second outer layer are impregnated with glue.

The invention relates to the technical field of building materials, and discloses a composite floor sound insulation board and a preparation method thereof, and the preparation method comprises the four core steps of base material pretreatment, honeycomb structure forming, PP non-woven fabric compounding, post-treatment and cutting. The composite floor sound insulation board prepared by the method comprises an HDPE substrate, a honeycomb structure layer, an epoxy resin adhesive layer and a PP non-woven fabric layer which are sequentially compounded. Tests show that the weighted sound insulation index is larger than or equal to 55 dB in the frequency band of 100 Hz to 5000 Hz, the heat conductivity coefficient is stabilized to be 0.028 W / mK to 0.035 W / mK, the interlayer bonding strength is larger than or equal to 1.5 MPa, the sound insulation and heat insulation performance and the structural durability are excellent, the compatibility of the preparation technology is high, and the sound insulation and heat insulation composite board is suitable for being used in the building. The technical problems that an existing floor sound insulation board is poor in preparation process stability, insufficient in product sound insulation performance, large in heat conductivity coefficient fluctuation and prone to failure of interlayer bonding can be solved, and the floor sound insulation board is suitable for large-scale production and can be widely applied to floor sound insulation projects of residences, office buildings and other buildings.