3771 results about "Acoustic insulation" patented technology

The invention relates to the technical field, in particular to an ultralight foamed ceramic hollow sphere prepared from iron lepidolite tailings and a preparation method and application of the ultralight foamed ceramic hollow sphere. The foamed ceramic hollow sphere is prepared from the following raw materials: iron lepidolite tailings, silicon carbide, bentonite, sodium carbonate and potassium carbonate; in percentage by mass, the content of the iron lepidolite tailings is 90 to 96.4 percent; the content of the silicon carbide is 0.1-1%; the iron lepidolite tailings are prepared from the following components in percentage by mass: 77 to 80 percent of SiO2, 10 to 13 percent of Al2O3, 1.3 to 1.6 percent of Fe2O3 and 0.1 to 0.17 percent of Li2O. The ultralight foamed ceramic hollow sphere is prepared by using the iron lepidolite tailings, the silicon carbide, the bentonite, the sodium carbonate and the potassium carbonate as raw materials, can meet various market requirements of heat preservation, heat insulation, sound insulation, noise reduction and the like, and brings remarkable economic benefits and social benefits.

The invention discloses a high-weatherability sound insulation wood plastic wallboard and a preparation method thereof, the high-weatherability sound insulation wood plastic wallboard comprises the following raw materials by weight: 30-40 parts of wood flour or plant fiber, 25-35 parts of a sound insulation functional filler, 35-45 parts of high density polyethylene, 2-2.5 parts of maleic anhydride grafted high density polyethylene, 1-1.5 parts of stearic acid, 3-4.5 parts of a weatherability auxiliary agent, and 1-1.5 parts of azodicarbonamide. The problems of cracking, deformation and the like caused by moisture absorption expansion are relieved by optimizing the proportion and compatibility of the wood flour and the plastic, and then the problems of weather resistance and sound insulation of the wallboard outdoors are solved by filling the porous sound absorption material.

The invention provides a sound-insulation porous ceramic tile and a preparation method thereof, and belongs to the field of building materials. The sound-insulation porous ceramic tile is prepared from the following raw materials: 20 to 30 parts of kaolin, 18 to 22 parts of quartz sand, 12 to 18 parts of potassium feldspar, 3 to 7 parts of talcum powder, 3 to 7 parts of silicon carbide powder, 2 to 4 parts of ferrosilicon alloy powder, 0.5 to 1.5 parts of sodium bicarbonate, 3 to 5 parts of hollow glass beads, 1 to 3 parts of zirconium oxide microspheres, 1 to 3 parts of silicon dioxide aerogel particles, 3 to 5 parts of acrylate emulsion, 1 to 3 parts of butadiene styrene rubber emulsion, 0.5 to 1.5 parts of polyvinyl alcohol solution and 1 to 2 parts of polyurethane dispersion. The composite material comprises the following components in parts by weight: 30-60 parts of polypropylene, 0.3-0.7 part of a dispersing agent, 0.2-0.4 part of a defoaming agent, 0.8-1.6 parts of reinforced fibers and 9-13 parts of deionized water. The raw materials of the porous ceramic tile are reasonably designed, the sound insulation performance of the porous ceramic tile is improved, and full-band efficient sound insulation is achieved.

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 present invention relates to a noise barrier wall panel that is lighter and more structurally sound than existing concrete noise barrier wall panels. The panel has a metal frame that is reinforced via metal strapping in key areas to prevent sagging. The panel has a plurality of layers forming a laminate that can be fixedly attached to the frame. A finish coating layer may have a plurality of designs, logos, symbols, or textures which may mimic building materials or scenery.

The present invention discloses a sound-insulating PVB film, its preparation method, and application. A sound-insulating PVB film comprises: a first PVB resin layer comprising the following components in parts by mass: 100 parts PVB resin, 33-47 parts plasticizer, 0.2-1 part antioxidant, 0.1-1.2 parts UV absorber, and 0.05-1 part adhesion regulator; a TPU resin layer disposed on the surface of the first PVB resin layer, comprising the following components in parts by mass: 8-24 parts TPU resin, 0.01-0.2 parts antioxidant, and 0.02-0.15 parts UV absorber; and a second PVB resin layer disposed on the surface of the TPU resin layer, the components of the second PVB resin layer being the same as those of the first PVB resin layer. The sound-insulating PVB film of the present invention uses TPU material for the middle layer, eliminating the need to add plasticizer to the middle layer. This prevents the plasticizer from seeping out of the PVB film and suppresses the generation of bubbles in laminated glass. The film also has uniform thickness and good optical properties.

The utility model discloses a high-strength assembly type building wallboard, which relates to the technical field of building wallboards, and comprises wallboard main bodies, a splicing frame is arranged between the two wallboard main bodies, the left side and the right side of the splicing frame are respectively provided with an assembly sliding groove, and the left side and the right side of each wallboard main body are respectively and fixedly connected with an assembly sliding plate. According to the utility model, the assembling sliding plate slides downwards and is inserted along the assembling sliding groove, so that the two wallboard main bodies and the splicing frame are spliced together, then cement can be injected into the formed pouring cavity, then the cover plate covers the top of the splicing frame, and after the cement is dry and hard, the assembling is completed; cement pouring can be used for filling gaps at the connecting positions to form an integral structure, loads can be effectively dispersed, shearing force can be effectively resisted, the bonding strength of cement is high, firm connection between the two wallboard bodies and the splicing frame can be ensured, and therefore the strength and the sound insulation and heat preservation effect after the wallboard bodies are assembled are improved.

A wall building system includes panels for walls, floors, ceilings, roofs, eaves, and lofts that positively couple together via one or more couplers. The panels may include an insulating core. The one or more couplers incorporate features for receiving plumbing, vents, drains, electrical, coax, CAT5, HVAC, and any other utilities or technology. The panels are designed such that the utilities are concealed until an electrical outlet, drain or water is required, at which time the panel is cut to expose the one or more couplers, which are subsequently cut to reveal a hollow cavity within. The system is aesthetically pleasing and reduces construction time considerably. The system is also extremely energy efficient, fireproof, soundproof, insect proof, virus proof, resists hurricane force winds, is EMP proof, fallout proof, can support a heavy snow load, and is faster to build with and structurally stronger than other construction methods.

The embodiment of the invention provides a compressor sound insulation structure and a control method thereof. The compressor sound insulation structure comprises a sound insulation cover and a deformation device. The compressor is covered with the sound insulation cover. The sound insulation cover comprises an inner sound insulation layer and an outer sound insulation layer which are sequentially arranged from inside to outside, and a resonant cavity is formed between the inner sound insulation layer and the outer sound insulation layer; the inner sound insulation layer is provided with a plurality of through holes and is made of a shape memory material; the deformation device is arranged in the soundproof cover and used for receiving the operation frequency of the compressor and driving the inner soundproof layer to deform according to the operation frequency so that the hole diameter of the through hole can be changed. Through the arrangement of the resonant cavity, the intensity of low-frequency noise is gradually weakened under the resonance effect, and therefore effective absorption of the low-frequency noise is achieved; by arranging the deformation device and the inner sound insulation layer made of the shape memory material, intelligent adjustment of the hole diameter of the through hole is achieved, so that the sound absorption frequency of the inner sound insulation layer and the resonant cavity is dynamically adjusted, the noise reduction requirement for broadband noise is met, and the operation noise of the outdoor unit is reduced.

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 discloses a multifunctional foam pad made of a regenerated composite material and a production process of the multifunctional foam pad, and belongs to the technical field of production of regenerated composite materials. The surface of the recycled PET non-woven fabric printing layer is provided with 50 + / -5 [mu] m micropores, the cat palm bionic gradient foaming layer (the density is 0.15-0.35 g / cm < 3 > gradient distribution) is formed by blending and foaming PVC recycled materials, PET bottle chips and waste rubber powder, and the glass fiber net reinforced rubber matrix layer and the triangular pyramid micro-sucker bottom layer are arranged from top to bottom. The preparation process comprises the steps of waste material near-infrared sorting and pretreatment, multi-stage dynamic blending granulation, supercritical CO2 gradient foaming, bionic calendaring forming and laser positioning hot-pressing compounding, high-valued utilization of multi-element waste materials is achieved through combination of bionic structure design and a green process, the product has sound insulation, buffering and anti-skid performance, the tear resistance is improved by 150%, and the service life of the product is prolonged. The problems that a traditional foaming cushion depends on raw plastic, is single in function and causes manufacturing pollution are solved, and resource circulation and function strengthening unification are achieved.

The invention belongs to the field of valves, and particularly relates to a high-pressure-difference anti-scouring low-noise stop valve which comprises a valve body, a valve cover, a valve seat, a valve rod and a valve clack, the valve body is provided with a valve cavity, the valve body is provided with a liquid inlet channel and a liquid outlet channel which are communicated with the valve cavity, and the valve seat is provided with a valve seat hole communicated with the liquid inlet channel. The valve sleeve is provided with a valve sleeve hole communicated with the valve seat hole, the valve clack is arranged on the valve rod in a linkage mode and matched with the valve sleeve in a sealing mode, one end of the valve clack is provided with a conical surface sealing portion matched with the valve seat hole in a sealing mode, and a protruding ring sealing portion matched with the valve sleeve in a sealing mode is arranged at the position, corresponding to the position between the conical surface sealing portion and the valve sleeve hole, of the valve clack. A pressure reducing cavity A, a pressure reducing cavity B and a pressure reducing cavity C which are sequentially communicated are formed in the valve cavity, the pressure reducing cavity A is communicated with the valve sleeve hole, and the pressure reducing cavity C is communicated with the liquid outlet channel; the valve clack is of a double-sealing-pair structure and a three-stage pressure reduction cavity structure, and a three-stage pressure reduction cavity has the functions of sound insulation, noise reduction and shock absorption. Erosive wear to a sealing surface is reduced, and the probability of external leakage is reduced.

The invention relates to the field of sound insulation materials, in particular to an environment-friendly automobile interior sound insulation material and a preparation method thereof. An environment-friendly automobile interior sound insulation material comprises a mass layer and a sound absorption layer, the mass layer is made of PET and PP composite non-woven fabric, and the weight of the mass layer is 1500-1700 g / m; the sound absorption layer is made of PET non-woven fabric, and the weight of the sound absorption layer is 400-500 g / m. The mass layer is made of PET and PP composite non-woven fabric, the weight reaches 1500-1700 g / m, and by means of the high surface density and composite structure, transmission of low and medium frequency noise of an engine, a road surface and the like can be effectively blocked; the sound absorption layer is a PET non-woven fabric of 400-500 g / m, the porous structure of the sound absorption layer can absorb medium-high frequency noise, and full-band sound insulation is achieved through combination of the quality layer and the sound absorption layer.

The invention relates to the technical field of polymer composite materials, in particular to flame-retardant light-weight high-sound-insulation composite PVC wiredrawing cloth and a preparation method thereof.The preparation method comprises the following steps that S1, a surface PVC film layer is prepared; s2, preparing bottom layer bonding slurry; s3, obtaining the flame-retardant polyester woven fabric with the PVC coating; s4, the surface layer PVC film layer and the PVC coating flame-retardant polyester woven fabric are coated with the bottom layer bonding slurry, hot-pressing compounding is conducted, wiredrawing texture forming is conducted, and the flame-retardant type light-weight high-sound-insulation composite PVC wiredrawing cloth is obtained. By optimizing the material formula and the structural design, the flame retardant property of the material is improved, the overall weight is reduced, and the sound insulation effect is enhanced, so that the requirements of high-end application scenes on the high-performance PVC high-gauge material are met.

The invention relates to the technical field of headphone production, in particular to a headphone sound insulation sponge installation device which comprises a machine shell, a driving air cylinder, a positioning assembly, a calibration assembly and an overturning assembly, the machine shell is divided into an upper shell body and a lower shell body, and the upper end face of the lower shell body is provided with a containing groove used for containing a headphone body. A mounting groove is formed in the front end face of the upper shell, the driving air cylinder is located in an inner cavity of the upper end of the upper shell, the positioning assembly comprises a sliding mounting block, a containing rod, a positioning barrel and a negative pressure assembly, the sliding mounting block is located at the upper end of an inner cavity of the mounting groove, the driving air cylinder is connected with the sliding mounting block, and the containing rod penetrates through the two sides of the sliding mounting block. The positioning cylinder is connected with the front end of the placing rod, the negative pressure assembly is used for adsorbing the sound insulation sponge, the overturning assembly is used for controlling the placing rod to rotate by 180 degrees when the sliding installation block moves downwards, and the calibration assembly is used for driving the sound insulation sponge to rotate so that the buckles can vertically correspond to the clamping grooves. The sound insulation sponge mounting precision is high, and the overall automation degree is high.

Described herein is an acoustic building panel having a first major exposed surface opposite a second major exposed surface and a side exposed surface extending there between, the acoustic ceiling panel comprising: a body comprising a first major surface opposite a second major surface and a side surface extending between the first and second major surfaces, the body being air-permeable; and an attenuation coating applied to the first major surface of the body; wherein a first portion of the second major exposed surface of the acoustic building panel is formed by the first major surface of the body and a second portion of the second major exposed surface of the acoustic building panel is formed by the attenuation coating.

The invention relates to the technical field of sound insulation materials, in particular to flame-retardant epoxy resin composite diatomite sound insulation cotton and a preparation method thereof. The flame-retardant epoxy resin composite diatomite sound insulation cotton is prepared from epoxy resin, diatomite, a composite flame retardant, a coupling agent, a curing agent, a diluent, a foaming agent and a charring agent. The composite flame retardant at least comprises ammonium polyphosphate and melamine; the coupling agent is a silane coupling agent or a titanate coupling agent; the curing agent is methyl tetrahydrophthalic anhydride; the diluent is n-butyl glycidyl ether; the foaming agent is azodicarbonamide; the charring agent is pentaerythritol. By optimizing the diatomite modification process and combining physical dispersion and chemical modification means, the compatibility of the diatomite and the epoxy resin is greatly improved, the pain point of filler agglomeration in the traditional process is thoroughly solved, the porous sound insulation potential of the diatomite is fully released, and the sound absorption and sound insulation performance of the material is qualitatively improved.

The invention relates to the technical field of multi-layer material preparation, in particular to a high-light-transmittance weather-proof impact-resistant striped sound insulation board. The problem that transparency, weather resistance and sound insulation effect of a traditional stripe material are difficult to consider at the same time is solved. The light scattering and absorption center is reduced and high transparency and low haze are realized through reactive extrusion of the recycled material, combination of high-temperature adsorption activated carbon, multi-stage high vacuum and deep purification of a reactive decolorizing agent, and matching of transparent dispersion diffusion master batch and a compatilizer. The surface layer adopts the core-shell weather-resistant master batch and the secondary high-energy UV fluorosilicone curing coating for double shielding of ultraviolet and inhibition of photodegradation and yellowing; styrene-maleic anhydride damping resin is introduced into the middle layer, and uniform inclined micropores and asymmetric stripes formed by supercritical CO2 are combined, so that the medium and low frequency sound insulation index is improved; the bottom layer is repaired and guaranteed to be durable in impact resistance by virtue of a core-shell toughening agent and molecular chain extension; the defects of traditional products are overcome, and the service life requirement of sound barriers for expressways and rail transit is met.

The utility model provides an aluminum foil pre-pressing tool for an automobile sound insulation part, which comprises a main body frame, an air pump arranged on one side of the main body frame, a partition plate welded inside the main body frame, a limiting guide rod connected to the top of the partition plate through a bolt, and an air cylinder connected to the top of the partition plate through a bolt. The output end of the air cylinder is connected with the sliding plate through a bolt. The bottom of the sliding plate is connected with an upper die through a bolt. The top of the partition plate is connected with a lower die through a bolt. The top of the partition plate is welded with pressing assemblies which are arranged on the two sides of the lower die. According to the aluminum foil pressing device, the aluminum foil can be tightly pressed before the upper die presses the aluminum foil downwards to move, dust on the die can be cleaned and collected in time, and the spiral legs can be adjusted so that the aluminum foil pressing device can adapt to more environments.

The utility model discloses a noise reduction structure, a vibration assembly and a vehicle, and the noise reduction structure is used for being attached to the surface of a housing of a component with vibration excitation and comprises multiple layers of metal sheets; the number of the damping layers is multiple, and the multiple damping layers and the multiple metal sheets are arranged in a stacked mode. According to the noise reduction structure, the plurality of metal sheets and the plurality of damping layers are arranged and attached to the surface of the component with vibration excitation, so that the metal sheets and the damping layers are combined, the noise reduction structure has sound absorption, sound insulation and vibration reduction performance, and the effect of reducing radiation noise of the shell can be achieved; and the original part structure and material with a vibration source do not need to be changed.

The invention relates to the technical field of assembly type structures, and particularly discloses a movable assembly type integrated sound insulation cover which comprises a side blocking structure, first sound insulation plates are detachably clamped on the side blocking structure, the first sound insulation plates are transversely and longitudinally spliced through the side blocking structure, an upper blocking structure is detachably installed on the side blocking structure, and a lower blocking structure is detachably installed on the upper blocking structure. A second sound insulation plate is detachably clamped on the upper blocking structure; wherein the side blocking structures are used for bearing the first sound insulation plates, the side blocking structures can be oppositely spliced, the first sound insulation plates are arranged in a concave shape, the side blocking structures are further used for supporting the upper blocking structures, the upper blocking structures are used for being matched with the side blocking structures to be transversely spliced, and the first sound insulation plates can be driven to form an L-shaped, concave, arc-shaped or even cylindrical enclosure through the overturning function of the shaft column; the sound-proof cover does not need to be customized independently for specific equipment, can be matched with industrial equipment with different sizes and different shapes such as lathes, milling machines, fans and compressors, and overcomes the universality defect that a traditional fixed sound-proof cover has one function.

The invention discloses sound insulation mortar, a preparation method, a sound insulation mortar system and a construction technology, and belongs to the field of building materials. The phosphogypsum-based low-carbon thermal insulation and sound insulation mortar is prepared from the following raw materials in parts by weight: 50 to 60 parts of phosphogypsum, 20 to 30 parts of filler, 10 to 15 parts of inorganic admixture, 10 to 15 parts of glass beads, 5 to 10 parts of aerogel, 0.1 to 0.5 part of water-retaining agent, 1 to 4 parts of polymer rubber powder, 0.02 to 0.05 part of retarder and 0.2 to 0.5 part of water reducing agent. The ardealite-based low-carbon thermal insulation and sound insulation mortar is compact in structure and good in crack resistance, and has an excellent sound insulation effect on the premise of ensuring that the mechanical property reaches the standard. The thermal-insulation and sound-insulation material is good in fire resistance and outstanding in aging resistance and durability in the long-term use process, has convenient construction performance and can fully meet the comprehensive use requirements of constructional engineering for thermal-insulation and sound-insulation materials.

Sound insulation assemblies for use with waste disposers, waste disposer systems having such sound insulation assemblies, and methods of installing such sound insulation assemblies onto waste disposers are provided. The sound insulation assemblies include a sound insulation layer that wraps around an upper portion of the waste disposer housing encompassing at least a grinding section and a food inlet section of the waste disposer, and a sound insulation trim shell layer that attaches to the sound insulation layer and surrounds at least a portion of the sound insulation layer.

The invention relates to the technical field of building materials, and provides a sound-insulation fireproof building material and a preparation method thereof. The sound-insulation and fireproof building material is prepared from, by weight, 100 parts of flame-retardant wood fiber, 15-30 parts of adhesive, 5-6 parts of hollow glass beads and 1-3 parts of waterproof agent, a preparation method of the flame-retardant wood fiber comprises the following steps that a flame retardant is dispersed in a solvent, wood fiber is added, mixing and drying are conducted, and the flame-retardant wood fiber is obtained; and the flame retardant comprises a 2, 4-dihydroxy-5-pyrimidine boric acid and / or a phenyl phosphate compound. By means of the technical scheme, the problem that in the prior art, sound-proof and fireproof building materials are poor in flame retardant property is solved.

The utility model discloses a movable type positive plate sorting production line which comprises a compartment body, and a smashing assembly and a sorting assembly are arranged in the compartment body. The crushing assembly comprises a crusher body, the output end of the crusher body is connected with a cyclone collector, and the solid output end of the cyclone collector is connected with an unloader; according to the utility model, a compartment type structure is adopted, so that flexible deployment in different areas is facilitated, hoisting and loading transportation can be carried out through a hoisting hook during deployment, the transportation cost is effectively reduced, and the renting cost of a site is effectively saved due to the use of the occupied space of the compartment type structure; the production line adopts a compartment type structure, has sealing, sound insulation and heat insulation functions and is combined with negative pressure dust removal equipment to effectively reduce dust and noise generated in the production process, the high-noise working environment is solved, and the safety of workers in the production process is improved; and various requirements of high efficiency of a production line, cleanness of a workshop and a working environment, safety production and the like are met.

The invention discloses a high-performance silicone rubber microporous foam material, a preparation method thereof and application of the high-performance silicone rubber microporous foam material in manufacturing of a warm-edge super spacing bar. According to the invention, a process of low-temperature preheating and high-temperature rapid foaming-curing of feed during extrusion molding is adopted, pre-curing is carried out at low temperature in advance, vinyl silicone resin enhances matrix modulus, homogeneous-phase gas nuclei and heterogeneous-phase gas nuclei generated by the nano nucleating agent, the foaming promoter and the foaming agent are rapidly foamed and cured at high temperature, so that the foaming performance is improved; and the vinyl silicone resin optimizes a foam structure and strengthens a molecular network, so that the mechanical property and the elastic recovery capability of foam are comprehensively improved, and the microporous, light and high-strength high-performance silicone rubber-based warm-edge super spacing bar is obtained. The 3A molecular sieve nanopores and closed micropores endow the foam with good moisture absorption and waterproof performance and sound insulation and heat insulation performance. The super spacing bar can perform elastic deformation compensation under stress, adapts to complex shapes of special-shaped glass (such as a curved curtain wall), and is simple in process and low in maintenance cost.

The invention discloses a sound insulation adhesive film and a preparation method and application thereof, and relates to the field of sound insulation materials. The sound insulation adhesive film comprises the following components in parts by weight: 90-100 parts of matrix resin; 23-30 parts of a plasticizer; 5-10 parts of a grafting agent; the grafting agent is selected from isocyanate uracil dimer; the mass content of hydroxyl in the matrix resin is 18-21% in percentage by weight, so that the vibration energy absorption capacity of the sound insulation adhesive film can be remarkably improved, the sound insulation effect is improved, and the impact resistance of the sound insulation adhesive film is improved.

1. The name of this design product: sound-absorbing panel. 2. Purpose of this design product: used for sound insulation, to isolate sound and reduce noise. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention discloses a high-performance water-based sound insulation, noise reduction and weight reduction coating applied to rail transit large vehicles and a preparation method of the high-performance water-based sound insulation, noise reduction and weight reduction coating, and belongs to the technical field of water-based coatings. Comprising the following components in parts by weight: 45-65 parts of resin liquid, 35-55 parts of grinding slurry and 15-25 parts of expanded microsphere dispersion liquid, the resin liquid mainly comprises a hydroxyl acrylic acid dispersion, the grinding slurry is mainly a mixture composed of a filler and water, and by adding the expanded microspheres and selecting the resin and the filler, the sound insulation and noise reduction performance and the weight reduction performance of the coating are effectively improved.

The invention relates to the technical field of gypsum boards, and particularly discloses a gypsum plaster board and a production process thereof. The invention relates to a gypsum plaster board, which comprises a board core and surface protection paper adhered to the two surfaces of the board core, and the board core comprises the following raw materials: 80-120 parts of gypsum clinker; 5 to 15 parts of vermiculite powder; 5-10 parts of modified elastic microspheres; 6-12 parts of porous soundproof mineral particles; 3-7 parts of glass fiber; 5 to 10 parts of silicon dioxide aerogel particles; 3-7 parts of aluminum hydroxide micro powder; 2 to 5 parts of acrylate emulsion; 2-5 parts of talcum powder; 0.5-2 parts of a water reducing agent; 30 to 50 parts of water; the modified elastic microspheres are nitrile rubber microspheres coated with an ethylene-vinyl acetate copolymer. According to the gypsum plaster board, the modified elastic microspheres and the porous sound insulation mineral particles are introduced to cooperate with other raw materials, so that the anti-cracking performance and the sound insulation performance of the gypsum plaster board are effectively improved.