Preparation method of high-frequency noise-reduction asphalt

A technology of noise reduction and asphalt, applied in building components, building insulation materials, buildings, etc., can solve the problems of noise reduction performance and noise reduction aging that cannot be further improved, improve high-frequency noise reduction, facilitate distribution, and prevent agglomeration Effect

Inactive Publication Date: 2019-05-10
翟治国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is: Aiming at the problem that the traditional high-frequency noise-reducing asphalt’s noise-reducing performance and noise-reducing timeliness cannot be further improved, a preparation method of high-frequency noise-reducing asphalt is provided

Method used

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  • Preparation method of high-frequency noise-reduction asphalt

Examples

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example 1

[0027] Mix potassium carbonate and titanium dioxide in a grinder at a molar ratio of 1.5:4.0, mix and grind for 25 hours to obtain a mixed powder, and then calcinate the mixed powder at a temperature of 850°C for 20 hours at a constant temperature to obtain a potassium tetratitanate powder blank. Wash the potassium tetratitanate powder blank with 18% hydrochloric acid for 8 times, and dry it at 90°C for 2 hours to obtain potassium tetratitanate powder; add lignosulfonic acid with a mass fraction of 18% Sodium solution and formaldehyde are mixed in a beaker at a mass ratio of 30:1, and sodium sulfite, which is 3 times the mass of formaldehyde, is added to the beaker, and stirred and reacted for 2 hours at a temperature of 70°C and a speed of 400r / min to obtain pretreated wood Sodium sulfonate solution, mix the pretreated sodium lignosulfonate solution and potassium iodide in a three-necked flask at a mass ratio of 120:1, and add 0.3 times the mass fraction of the pretreated sodi...

example 2

[0029]Mix the sodium lignosulfonate solution with a mass fraction of 18% and formaldehyde in a beaker at a mass ratio of 30:1, and add sodium sulfite three times the mass of formaldehyde to the beaker, at a temperature of 70°C and a speed of 400r / min After stirring and reacting for 2 hours under the same conditions, the pretreated sodium lignosulfonate solution was obtained. The pretreated sodium lignosulfonate solution and potassium iodide were mixed in a three-necked flask at a mass ratio of 120:1, and the pretreated lignin was added to the three-necked flask. 0.3 times the mass fraction of sodium sulfonate solution is 90% 1,6-dibromohexane ethanol solution, control the addition rate of 1,6-dibromohexane ethanol solution to 8mL / min, and use a mass fraction of 12 % sodium hydroxide solution to control the pH of the material in the three-necked flask to 12, and after stirring and reacting for 4 hours at a temperature of 80°C and a rotation speed of 380r / min, a treatment agent m...

example 3

[0031] Mix potassium carbonate and titanium dioxide in a grinder at a molar ratio of 1.5:4.0, mix and grind for 25 hours to obtain a mixed powder, and then calcinate the mixed powder at a temperature of 850°C for 20 hours at a constant temperature to obtain a potassium tetratitanate powder blank. Wash the potassium tetratitanate powder blank with 18% hydrochloric acid for 8 times, and dry it at 90°C for 2 hours to obtain potassium tetratitanate powder; add lignosulfonic acid with a mass fraction of 18% Sodium solution and formaldehyde are mixed in a beaker at a mass ratio of 30:1, and sodium sulfite, which is 3 times the mass of formaldehyde, is added to the beaker, and stirred and reacted for 2 hours at a temperature of 70°C and a speed of 400r / min to obtain pretreated wood Sodium sulfonate solution, mix the pretreated sodium lignosulfonate solution and potassium iodide in a three-necked flask at a mass ratio of 120:1, and add 0.3 times the mass fraction of the pretreated sodi...

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Abstract

The invention discloses a preparation method of high-frequency noise-reduction asphalt, and belongs to the technical field of building materials. The preparation method of the high-frequency noise-reduction asphalt comprises the following steps: sequentially weighing the following components in parts by weight: 80-100 parts of SBS modified asphalt, 20-30 parts of modified potassium tetratitanate,5-8 parts of barium sulfate and 10-15 parts of waste rubber powder; mixing the SBS modified asphalt with polytetrafluoroethylene according to the mass ratio of 1: 3-1: 4; heating and melting at the temperature of 120-180 DEG C, adding the modified potassium tetratitanate, the barium sulfate and the waste rubber powder into the mixture of the SBS modified asphalt and the polytetrafluoroethylene, stirring and mixing at the temperature of 100-160 DEG C and the rotation speed of 180-300 r / min for 2-3 hours, and pressing and forming at the temperature of 180 DEG C to obtain the noise-reduction asphalt. The noise-reduction asphalt prepared by the technical scheme has the characteristics of excellent noise-reduction performance and long noise-reduction aging time, and has wide prospects in the development of the building material technology industry.

Description

technical field [0001] The invention discloses a preparation method of high-frequency noise-reducing asphalt, which belongs to the technical field of building materials. Background technique [0002] The rapid development of highway transportation has brought great convenience to people, but problems such as traffic noise and insufficient anti-skid performance of road surfaces have become increasingly prominent, seriously affecting people's work and life. Therefore, providing road traffic with good environmental protection, strong comfort and high quality has gradually become an important research topic. Anti-slip and noise-reducing asphalt pavement has the characteristics of good anti-skid performance, excellent noise reduction performance, and large void ratio. It can reduce noise pollution while ensuring driving safety, and has become a research hotspot. Research on anti-slip and noise-reducing asphalt mixture, and then improve the service life of the pavement, has very ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L19/00C08K9/04C08K9/02C08K9/06C08K9/12C08K3/30C08K7/00C08H7/00C08J9/236C08J9/18
Inventor 翟治国
Owner 翟治国
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