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CN-122011625-A - High-toughness nano rubber and plastic heat-insulating sound-insulating board

CN122011625ACN 122011625 ACN122011625 ACN 122011625ACN-122011625-A

Abstract

The application relates to the technical field of building materials, in particular to a high-toughness nano rubber-plastic heat-insulation sound-insulation board. The heat-insulating sound-insulating board is prepared by mixing 12-25 parts of nano calcium carbonate, 1-3 parts of carbon nano tube and 1.5-2.5 parts of titanate coupling agent according to parts by mass to obtain a pretreated nano material, mixing the pretreated nano material obtained in the step S1 with 90-100 parts of PVC resin, 3-5 parts of heat stabilizer, 10-20 parts of solid flame retardant and 0.5-1 part of antioxidant according to parts by mass to obtain a premixed dry material, banburying the material, discharging the material to a double-roll open mill, carrying out open mill, cooling to obtain a sizing material, putting the sizing material into a mold, carrying out primary pressurizing and heating, pressure relief, secondary heating setting, cooling and demoulding to obtain the high-toughness nano rubber-plastic heat-insulating board. The high-toughness nano rubber-plastic heat-insulation sound-insulation board provided by the application has high toughness and good heat-insulation and sound-insulation effects.

Inventors

  • ZHANG HUIMIN
  • HAN XUELONG
  • PAN BAOKANG
  • CAO GUOCAI

Assignees

  • 江苏从一家居股份有限公司

Dates

Publication Date
20260512
Application Date
20260319

Claims (9)

  1. 1. The high-toughness nano rubber and plastic heat-insulating sound-insulating plate is characterized by being prepared by the following steps: S1, mixing 12-25 parts of nano calcium carbonate, 1-3 parts of carbon nano tube and 1.5-2.5 parts of titanate coupling agent according to parts by mass to obtain a pretreated nano material; S2, mixing the pretreated nanomaterial obtained in the step S1 with 90-100 parts of PVC resin, 3-5 parts of heat stabilizer, 10-20 parts of solid flame retardant and 0.5-1 part of antioxidant according to parts by mass to obtain premixed dry material; S3, adding 30-40 parts of ethylene propylene diene monomer, 20-30 parts of dioctyl phthalate and 5-10 parts of chlorinated polyethylene into an internal mixer for primary internal mixing, adding the premixed dry material obtained in the step S2 for secondary internal mixing, adding 5-8 parts of AC foaming agent, 2-4 parts of foaming activator and 1-2 parts of lubricant for tertiary internal mixing, discharging the materials into a double-roll open mill for open mixing, and cooling to obtain sizing materials; s4, placing the sizing material obtained in the step S3 into a mold, performing primary pressurizing and heating, pressure relief, secondary heating and shaping, cooling and demolding to obtain the high-toughness nano rubber and plastic heat-insulating sound-insulating plate.
  2. 2. The high-toughness nano rubber and plastic heat and sound insulation board according to claim 1, wherein the mixing in the step S1 is carried out under the condition that the mixing is carried out for 10-15 minutes at the rotating speed of 1000-1100rpm at the temperature of 80-90 ℃.
  3. 3. The high-toughness nano rubber and plastic heat and sound insulation board according to claim 1, wherein the mixing in the step S2 is carried out at the temperature of 100-110 ℃ for 8-10 minutes at the rotating speed of 900-1000 rpm.
  4. 4. The high-toughness nano rubber and plastic heat and sound insulation board according to claim 1, wherein the primary banburying is carried out for 2-3 minutes at the rotating speed of 30-40rpm at the temperature of 60-70 ℃.
  5. 5. The high-toughness nano rubber and plastic heat and sound insulation board according to claim 1, wherein the secondary banburying is carried out for 2-3 minutes at the rotating speed of 30-40rpm at the temperature of 110-120 ℃.
  6. 6. The high-toughness nano rubber and plastic heat and sound insulation board according to claim 1, wherein the three-time banburying is carried out for 3-4 minutes at the rotating speed of 30-40rpm at the temperature of 120-125 ℃.
  7. 7. The high-toughness nano rubber-plastic heat-insulating sound-insulating board according to claim 1, wherein the two-roll mill is used for milling under the conditions that the temperature of a front roll is 100-105 ℃, the rotating speed is 20-25rpm, the temperature of a rear roll is 105-110 ℃, the rotating speed is 15-20rpm, the roll spacing is 1.5-2.0mm, the thin pass is 3-5 times, triangular wrapping is carried out for 5-6 times, and then the roll spacing is adjusted to 2.8-3mm for discharging sheets.
  8. 8. The high-toughness nano rubber and plastic heat insulation and sound insulation board according to claim 1, wherein the primary pressurized heating is carried out for 8-12 minutes under the pressure of 15-20MPa and the temperature of 140-150 ℃.
  9. 9. The high-toughness nano rubber and plastic heat-insulating sound-insulating board according to claim 1, wherein the secondary heating and shaping are carried out for 5-8 minutes at 160-170 ℃ under the pressure of 0.5-1 MPa.

Description

High-toughness nano rubber and plastic heat-insulating sound-insulating board Technical Field The application relates to the technical field of building materials, in particular to a high-toughness nano rubber-plastic heat-insulation sound-insulation board. Background The rubber-plastic heat-insulating and sound-insulating material is widely applied to heat insulation and sound insulation treatment in the fields of building envelope structures, industrial pipelines, transportation tools and the like because of the advantages of light weight, flexibility, low heat conductivity coefficient, moisture resistance, corrosion resistance and the like, the traditional rubber-plastic heat-insulating and sound-insulating board generally takes a blend of rubber and plastic as a matrix, a foam material mainly taking a closed-cell structure is prepared through a chemical foaming process, the heat insulation performance mainly depends on the low heat conductivity of air sealed in cells, and the sound insulation performance depends on the consumption of the material on sound energy through modes such as vibration damping, friction heat generation and the like. Traditional product design focuses on heat preservation performance, and is limited to the optimization of sound insulation performance, and its cell structure is often comparatively single, and the sound insulation effect is not good. Meanwhile, the prior art is difficult to realize high toughness synchronously on the premise of maintaining excellent heat preservation and sound insulation performance. Therefore, development of a novel rubber-plastic composite material which can fundamentally coordinate and improve toughness, heat preservation and sound insulation and is controllable in process becomes a key problem to be solved in the technical field. Disclosure of Invention Aiming at the problems, the application aims to provide the high-toughness nano rubber plastic heat-insulation sound-insulation board which has high toughness and good heat-insulation sound-insulation effect. In order to achieve the purpose, the application provides a high-toughness nano rubber and plastic heat insulation sound insulation board, which is prepared by the following steps: S1, mixing 12-25 parts of nano calcium carbonate, 1-3 parts of carbon nano tube and 1.5-2.5 parts of titanate coupling agent according to parts by mass to obtain a pretreated nano material; S2, mixing the pretreated nanomaterial obtained in the step S1 with 90-100 parts of PVC resin, 3-5 parts of heat stabilizer, 10-20 parts of solid flame retardant and 0.5-1 part of antioxidant according to parts by mass to obtain premixed dry material; S3, adding 30-40 parts of ethylene propylene diene monomer, 20-30 parts of dioctyl phthalate and 5-10 parts of chlorinated polyethylene into an internal mixer for primary internal mixing, adding the premixed dry material obtained in the step S2 for secondary internal mixing, adding 5-8 parts of AC foaming agent, 2-4 parts of foaming activator and 1-2 parts of lubricant for tertiary internal mixing, discharging the materials into a double-roll open mill for open mixing, and cooling to obtain sizing materials; s4, placing the sizing material obtained in the step S3 into a mold, performing primary pressurizing and heating, pressure relief, secondary heating and shaping, cooling and demolding to obtain the high-toughness nano rubber and plastic heat-insulating sound-insulating plate. Further, the mixing in step S1 is carried out under the condition that the mixing is carried out at a rotation speed of 1000-1100rpm for 10-15 minutes at 80-90 ℃. Further, the mixing in the step S2 is carried out under the condition that the temperature is 100-110 ℃ and the rotating speed is 900-1000rpm for 8-10 minutes. Further, the primary banburying is carried out for 2-3 minutes at the rotating speed of 30-40rpm at the temperature of 60-70 ℃. Further, the secondary banburying is carried out for 2-3 minutes at the rotating speed of 30-40rpm at the temperature of 110-120 ℃. Further, the three-time banburying is carried out for 3-4 minutes at the rotating speed of 30-40rpm at the temperature of 120-125 ℃. Further, the two-roll open mill is used for open milling under the conditions that the temperature of a front roll is 100-105 ℃, the rotating speed is 20-25rpm, the temperature of a rear roll is 105-110 ℃, the rotating speed is 15-20rpm, the roll gap is 1.5-2.0mm, the roll is opened for 3-5 times, triangular bags are packed for 5-6 times, and then the roll gap is adjusted to 2.8-3mm for discharging sheets. Further, the primary pressure heating is carried out, and the pressure is 15-20MPa, and the temperature is 140-150 ℃ for 8-12 minutes. Further, the secondary heating and shaping is carried out, and the secondary heating and shaping is carried out for 5-8 minutes at 160-170 ℃ under the pressure of 0.5-1 MPa. In summary, the application has the following beneficial effects: According to the application