61results about How to "With sound absorption and noise reduction" patented technology

The invention discloses energy-saving paint and a preparation method thereof. The energy-saving paint comprises the following components of cellulose, 2-amino-2-methyl-1-propanol-95 (AMP-95), a temperature-regulating, phase-changing, energy-storing and heat-preserving material, pure acrylic emulsion, a dispersing agent, a wetting agent, a defoaming agent, rutile titanium dioxide, glycol, a film forming aid, a preservative, a mildew prevention agent, a flattening agent, a thickening agent and deionized water. According to the energy-saving paint, the novel temperature-regulating, phase-changing, energy-storing and heat-preserving material is adopted, so that effects of saving energy by using latent heat, storing and releasing heat energy and making the room temperature be relatively balanced are achieved; and the energy-saving paint has sound absorbing, noise lowering, sterilizing, toxicity preventing, odor removing and fire and mildew preventing functions, and alkali can be prevented from being separated out.

A high-crystal, light and high-strength gauge stuff ceiling is prepared through the following steps that firstly, a stirring solution is prepared, namely, a polyving akohol solution, the copolymer emulsion of polyvinyl acetate and ethylene, a water reducer, a water-proofing agent, a retarder and a defoaming agent are mixed with water and stirred evenly; secondly, mixed powder is prepared, namely gypsum powder and white cement are evenly mixed; thirdly, gypsum pulp is prepared, namely the mixed powder is poured in a barrel containing the stirring solution, short-cut glass fiber filaments are added during stirring, and even stirring is performed; fourthly, pouring molding is carried out, namely the gypsum pulp is poured in a PVC mold for bottoming, leveling and bottom shielding, and glass fiber gridding cloth and glass fiber bars are placed, wherein the glass fiber bars are placed close to the edge of an inner cavity of the PVC mold, residual pulp is poured in the PVC mold and ironed through a mud plate, a PVC cover plate is placed during knocking, and the periphery is compacted; and after the residual pulp is finally set, the high-crystal, light and high-strength gauge stuff ceiling is obtained through maintaining, drying and surface processing. The high-crystal, light and high-strength gauge stuff ceiling has the beneficial effects of being light in weight, low in transporting and installing cost, high in safety coefficient and the like.

A method for making diatomite bricks belongs to the technical field of inorganic non-metallic materials. The invention consists of materials: natural diatomite, kaolin, attapulgite, sepiolite powder, vermiculite powder, bentonite, water, bamboo powder, alginate, silicon carbide, and carboxymethyl cellulose. Diatomite bricks are prepared through the production process of configuring materials, pouring molds into billets, and microwave drying and sintering. The microwave drying and sintering method adopted in the present invention has fast heating speed, improved production efficiency, uniform heating, shortened production cycle, high efficiency, energy saving and no pollution. The diatomite brick produced by the invention is environmentally friendly and non-toxic, and has the functions of eliminating formaldehyde, purifying air, adjusting humidity, releasing negative oxygen ions, preventing fire and flame, sterilizing, deodorizing, absorbing moisture and deodorizing, absorbing sound and reducing noise.

The invention provides a sound absorbing and noise reduction decorative board and a preparation method and application thereof. The decorative board comprises a non-woven needled glass fiber reinforced polypropylene layer and a thermoplastic film layer. The microporous structure of the non-woven needled glass fiber reinforced polypropylene layer has the advantages of sound absorption and noise reduction, and is combined with resonance sound absorption of a film layer, and the decorative board has the advantages of sound absorption and noise reduction.

The invention relates to a foaming cement and foaming polyurethane interpenetrating network thermal insulation board for an external wall and preparation of the foaming cement and foaming polyurethane interpenetrating network thermal insulation board, aiming at overcoming the defects that a foaming cement board has low intensity and is easy to crack, and a foaming polyurethane board is low in cost and poor in fireproof performance and the like. The external wall is characterized by being prepared from foaming cement (a component A) and polyurethane (a component B) through an inserting hole grouting process. In a preparation process, the component A is machined into the foaming cement board and the component B is filled through an inserting hole by pressurizing; after the polyurethane is foamed, the foaming cement and foaming polyurethane interpenetrating network structure can be formed. The foaming cement and foaming polyurethane interpenetrating network thermal insulation board provided by the invention has the advantages that the researched thermal insulation board for the external wall of a building has light weight and the surface-dry density is 100kg/m<3> to 300kg/m<3>; the coefficient of thermal conductivity is 0.03W/(m.K) to 0.05W/(m.K) and the thermal insulation and heat preservation performance is better; the compression strength is 0.2MPa to 3.0MPa; furthermore, the foaming cement and foaming polyurethane interpenetrating network thermal insulation board has the characteristics of sound absorption and noise reduction, fire resistance and flame resistance, low comprehensive cost and the like, and can be widely applied to heat preservation, energy saving and consumption reduction of the external wall of the building.

The invention discloses a bamboo-wood fiber flame-retardant composite decorative plate and a preparation method thereof. The composite decorative plate comprises a middle foaming flame-retardant plate and bamboo-wood fiber flame-retardant plates arranged on the upper surface and the lower surface of the middle foaming flame-retardant plate. The middle foaming flame-retardant plate comprises by weight: 50-70% of PVC resin, 10-15% of a foaming agent, 3-8% of a foaming regulator, 2-4% of a stabilizer, 5-10% of filler and 3-5% of flame retardant. The bamboo-wood fiber flame-retardant plate comprises by weight: 15%-30% of PVC resin, 20%-40% of bamboo-wood fiber powder, 30%-45% of calcium powder, 5%-10% of flame retardant and 1%-3% of mineral pigment. The middle foaming flame-retardant plate has the functions of sound absorption, noise reduction, heat preservation and heat insulation, meanwhile, the rigidity of the decorative plate is reduced, and therefore the situation that the plate is warped and deformed due to the fact that expansion force difference is generated after moisture absorption is avoided. The bamboo-wood fiber flame-retardant plate has the advantages that the raw materials are green and environment-friendly, the flame-retardant function is realized, meanwhile, the product is light and thin, the transfer from low-value products to high-value products is realized, and the maintenance cost is extremely low.

The invention relates to a rainstorm-resistant waterlogging-resistant recycled pervious concrete pavement design method which is characterized by comprising the following steps: S01, determining a permeability coefficient K of a concrete pavement when a set drainage standard is reached; S02, obtaining a relational expression I between the concrete porosity P and the permeable system K, and determining the porosity P corresponding to the permeable coefficient K in the step S01 according to the relational expression I; S03, obtaining a relational expression II between the concrete strength and the porosity P, and determining the concrete strength according to the relational expression II; S04, designing water permeable holes in the concrete pavement according to a relational expression III between the porosity P and the water permeable holes, wherein the water permeable hole design comprises hole diameter and hole distribution design of the water permeable holes; and S05, designing the mix proportion of the concrete according to the concrete strength determined in the step S03. According to the method, the porosity and the mix proportion of the pervious concrete can be designed according to the rainstorm grade and the flood drainage requirement needing to be met by the pavement.

The invention relates to a gear and specifically provides a noise-reducing gear. The noise-reducing gear structurally comprises a gear main body, wherein sound-absorbing cotton fills the gear main body. Compared with the prior art, the noise-reducing gear has the characteristics of reasonable design, simple structure, low manufacturing cost, long service life and capability of absorbing sound and reducing noise.

The invention discloses a solid waste-based geopolymer mortar dry blend which is prepared from 10-30% of mountain ash cementing material, 10-20% of phosphorus slag powder, 30-60% of sand, 0-10% of vermiculite powder, 0-10% of diatomite, 0-5% of magnesium borate whisker, 0-5% of modified nano titanium oxide, polyvinyl alcohol accounting for 0.02-0.2% of the total amount of the raw materials, and the alkali activator accounting for 2-6% of the total amount of the raw materials. The solid waste-based geopolymer mortar dry blend developed by taking the phosphorus slag, the soda ash waste residue and other industrial byproducts as main raw materials can simultaneously exert the dual effects of geological polymerization and hydration, the added functional material improves the added value of the product, and the dry blend can replace the traditional cement mortar to be used for road, bridge and culvert and tunnel construction. The material has the advantages of high strength, high toughness, cracking resistance, sound absorption, noise reduction, air purification, energy conservation, emission reduction and the like, is wide in application range, and has good practical application value.