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CN-122010461-A - Ultralight sound-absorbing and heat-insulating soft porcelain and preparation method thereof

CN122010461ACN 122010461 ACN122010461 ACN 122010461ACN-122010461-A

Abstract

The invention relates to the technical field of decorative materials, in particular to an ultralight, sound-absorbing and heat-insulating soft porcelain and a preparation method thereof. The ultra-light, sound-absorbing and heat-insulating soft porcelain is prepared from the following raw materials, by weight, 120-145 parts of a compounded polymer emulsion, 190-230 parts of an inorganic matrix, 280-350 parts of quartz sand, 70-140 parts of hollow microspheres, 2-4 parts of bentonite, 7-11 parts of a flame retardant, 2-4 parts of chopped fibers, 0.5-1.5 parts of a wetting dispersant, 0.1-0.5 part of an organosilicon defoamer, 0.5-2 parts of an inorganic pigment and 200-240 parts of a diluent. The ultra-light, sound-absorbing and heat-insulating soft porcelain is prepared by the technology of sectional baking, orderly feeding and low-speed stirring, and the triple aims of ultra-light, heat insulation and sound absorption are realized, and the water absorption, durability and flexibility far exceed the standard requirements.

Inventors

  • SUN XIANGSHAN
  • GAO FENGQIANG

Assignees

  • 河北莱恩斯新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260211

Claims (10)

  1. 1. The ultra-light, sound-absorbing and heat-insulating soft porcelain is characterized by comprising, by weight, 120-145 parts of compounded polymer emulsion, 190-230 parts of inorganic matrix, 280-350 parts of quartz sand, 70-140 parts of hollow microspheres, 2-4 parts of bentonite, 7-11 parts of flame retardant, 2-4 parts of chopped fibers, 0.5-1.5 parts of wetting dispersant, 0.1-0.5 part of organosilicon defoamer, 0.5-2 parts of inorganic pigment and 200-240 parts of diluent.
  2. 2. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, wherein the compound polymer emulsion is prepared from aqueous acrylic ester emulsion and ethylene-vinyl acetate emulsion according to the mass ratio of (6-8) (2-4).
  3. 3. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, wherein the inorganic matrix is prepared from (30-40): (40-50): (120-140) as the mass ratio of heavy calcium powder, calcined kaolin and S95 mineral powder.
  4. 4. The ultra-lightweight, sound-absorbing and heat-insulating soft porcelain according to claim 1, wherein the hollow micro beads are any one of hollow glass micro beads and hollow ceramic micro beads.
  5. 5. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, wherein the flame retardant is any one of aluminum hydroxide and magnesium hydroxide.
  6. 6. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, wherein the wetting dispersant is prepared by mixing a polycarboxylic acid dispersant and a fatty alcohol polyoxyethylene ether wetting agent according to a mass ratio of (2-4): 1.
  7. 7. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, further comprising 15-35 parts of composite light functional filler, wherein the composite light functional filler is prepared from silica aerogel and expanded perlite according to the mass ratio of (2-4) (1-3).
  8. 8. The ultra-light, sound-absorbing and heat-insulating soft porcelain according to claim 1, further comprising a chemical foaming agent, which is 1-3 parts of azodicarbonamide.
  9. 9. The ultra-lightweight, sound-absorbing and heat-insulating soft porcelain according to claim 1, further comprising 2-5 parts of a physical foaming agent, which is a thermal expansion microsphere.
  10. 10. A method for preparing the ultra-lightweight, sound-absorbing and heat-insulating soft porcelain according to any one of claims 1 to 9, comprising the steps of: s1, weighing raw materials in proportion, mixing and stirring for 5-10min until the raw materials are uniformly dispersed, and preparing uniform slurry; s2, spraying the slurry of S1 on the surface of a silica gel mold, and drying the slurry in a low-temperature drying tunnel at 60-90 ℃ for 1-2 hours to obtain a primary matrix, wherein the thickness of a wet film is 1-2mm; S3, performing secondary spraying on the primary substrate of the S2, immediately paving a fiber mesh cloth on the primary substrate after spraying, lightly pressing and leveling the surface by using a rolling device, controlling the thickness of a wet film to be 1-2mm, and drying the wet film in a two-stage high-temperature drying channel at 80-120 ℃ for 1.5-2h; s4, immediately entering an air cooling section after discharging from the furnace, and reducing the temperature to below 50 ℃; S5, stripping from the die, cutting, performing performance inspection, and packaging and warehousing qualified products.

Description

Ultralight sound-absorbing and heat-insulating soft porcelain and preparation method thereof Technical Field The invention relates to the technical field of decorative materials, in particular to an ultralight, sound-absorbing and heat-insulating soft porcelain and a preparation method thereof. Background The soft porcelain is a new type building decoration material formed by using modified inorganic mineral powder as main raw material and mixing with small quantity of water-based high molecular polymer and low-temp. baking. Compared with the traditional ceramic tile, the soft porcelain has the remarkable advantages of light and thin texture, flexibility, easy bending, convenient construction, rich colors, vivid texture and the like, integrates the novel building material sheet products with the advantages of decoration, safety, environmental protection, fire resistance, flame retardance and aging resistance, can be widely applied to the internal and external decoration of buildings, and can realize the pasting of curved vertical faces. Although the soft porcelain is excellent in decoration and construction, with the continuous improvement of the functional requirements of the building materials in the market, the inherent limitations of the soft porcelain are gradually revealed, and particularly, the soft porcelain has obvious short plates, namely ①, the sound insulation and absorption performance is insufficient in the aspects of acoustic and thermal performance, namely, the traditional soft porcelain has compact structure, lacks a porous or resonance sound absorption structure, has large acoustic impedance and air phase difference, has strong reflection, weak absorption and difficult acoustic energy consumption, and is limited in application in places requiring silence or acoustic design such as meeting rooms, cinema and the like. ② The soft porcelain has poor heat insulation performance, the main component is inorganic mineral powder, the heat conductivity coefficient is higher than that of the traditional ceramic, the soft porcelain belongs to a poor heat conductor, heat transfer is difficult to be blocked, and the high requirements of building energy conservation on heat insulation of the enclosure structure are difficult to be met. ③ The larger and larger size of the decoration products means that the weight of the single-piece products is increased, and the on-site constructors are increased, so that the pasting auxiliary materials are required to be higher in adhesive force and anti-sliding, and the problems of local fixation of auxiliary steam nails and the like are solved. Therefore, aiming at the large-size soft porcelain, the development of the ultra-light soft porcelain with excellent sound absorption and heat insulation performances is a technical problem to be solved in the current industry. Disclosure of Invention In order to meet the requirements of large-size soft porcelain, the application has the characteristics of light weight and convenient construction, and has the characteristics of good sound insulation and absorption performance and good heat preservation and insulation performance. In a first aspect, the application provides an ultra-light, sound-absorbing and heat-insulating soft porcelain, which adopts the following technical scheme: The ultra-light, sound-absorbing and heat-insulating soft porcelain is prepared from the following raw materials, by weight, 120-145 parts of a compound high molecular emulsion, 190-230 parts of an inorganic matrix, 280-350 parts of quartz sand, 70-140 parts of hollow microspheres, 2-4 parts of bentonite, 7-11 parts of a flame retardant, 2-4 parts of chopped fibers, 0.5-1.5 parts of a wetting dispersant, 0.1-0.5 part of an organosilicon defoamer, 0.5-2 parts of an inorganic pigment and 200-240 parts of a diluent. By adopting the scheme, the obtained ultra-light, sound-absorbing and heat-insulating soft porcelain is added with light materials such as composite light functional filler, hollow microspheres and physical foaming agent by reducing the specific gravity of heavy calcium powder, the unit weight is reduced by 40-60% on the basis of the original thickness, the weight is lighter, the spray-coating production and preparation are easier to operate due to the spherical structure of the added hollow microspheres, the strength is reduced, the density is reduced to 720 kg/m < 3 >, the heat conductivity is only 0.039W/(m.K), the NRC value reaches 0.55, the triple aims of ultra-light, heat insulation and sound absorption are realized, and the water absorption rate, the durability and the flexibility meet even far-exceeding standard requirements. Preferably, the compound polymer emulsion is prepared from aqueous acrylic ester emulsion and ethylene-vinyl acetate emulsion according to the mass ratio of (6-8) (2-4). By adopting the scheme, the compound polymer emulsion is used as an organic binding phase, inorganic materials are wrapped and formed into a