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Smoke suppressing and deodorizing additive, preparation method thereof and modified asphalt

A technology of modified asphalt and additives, applied in building components, building insulation materials, buildings, etc., can solve problems such as unfavorable high temperature modified asphalt, and achieve the effects of reducing flue gas emissions and odor, increasing asphalt volatilization content, and reducing decomposition.

Active Publication Date: 2019-05-14
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the added carboxylic acid esters such as methyl acetate and ethyl acetate stabilizer vinyl trichlorosilane have a boiling point of 90.6°C, which is relatively low. If the asphalt modification temperature is 170-200°C, a large amount of volatilization will occur, which is not conducive to application. in high temperature modified asphalt process

Method used

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  • Smoke suppressing and deodorizing additive, preparation method thereof and modified asphalt
  • Smoke suppressing and deodorizing additive, preparation method thereof and modified asphalt

Examples

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Effect test

Embodiment 1

[0037] This embodiment provides a smoke-suppressing and deodorizing additive and a smoke-suppressing and low-odor modified asphalt.

[0038] A smoke suppressing and deodorizing additive, in parts by mass, the additive proportions: 5 parts of free radical scavenger (p-benzoquinone), 5 parts of metal organic framework compounds (2.5 parts of MIL-100, 2.5 parts of MOF-199), 10 parts of inorganic adsorption material (activated carbon), 1 part of reactive odor inhibitor (3-ethoxy-4-hydroxybenzaldehyde), and 79 parts of substrate (paraffin wax No. 62).

[0039] A modified asphalt with smoke suppression and low odor: heat 100 parts of 70# asphalt to 150° C., add 1 part of the above additives, and stir at 200 rpm for 1 hour to obtain modified asphalt with smoke suppression and low odor.

Embodiment 2

[0041] This embodiment provides a smoke-suppressing and deodorizing additive and a smoke-suppressing and low-odor modified asphalt.

[0042] A smoke-suppressing and deodorizing additive, in parts by mass, the additive ratio is: 5 parts of a free radical scavenger (2 parts of 2,2-diphenyl-1-trinitrophenylhydrazine, 3 parts of p-benzoquinone), 5 parts of metal organic framework compounds (2.5 parts of MIL-100, 2.5 parts of MOF-199), 30 parts of inorganic adsorption material (activated carbon), 5 parts of reactive odor inhibitor (3-ethoxy-4-hydroxybenzaldehyde), Substrate (No. 62 paraffin) 55 parts.

[0043] A modified asphalt with smoke suppression and low odor: heat 100 parts of 70# asphalt to 150° C., add 1 part of the above additives, and stir at 200 rpm for 1 hour to obtain modified asphalt with smoke suppression and low odor.

Embodiment 3

[0045] This embodiment provides a smoke-suppressing and deodorizing additive and a smoke-suppressing and low-odor modified asphalt.

[0046] A smoke-suppressing and deodorizing additive, in parts by mass, the additive ratio is: 10 parts of free radical scavengers (4 parts of 2,2-diphenyl-1-trinitrophenylhydrazine, 6 parts of p-benzoquinone), 10 parts of metal organic framework compounds (5 parts of MIL-100, 5 parts of MOF-199), 20 parts of inorganic adsorption material (activated carbon), 5 parts of reactive odor inhibitor (3-ethoxy-4-hydroxybenzaldehyde), 55 parts of base material (cetastearyl alcohol).

[0047] A modified asphalt with smoke suppression and low odor: heat 100 parts of 70# asphalt to 150° C., add 1 part of the above additives, and stir at 200 rpm for 1 hour to obtain modified asphalt with smoke suppression and low odor.

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Abstract

The invention discloses a smoke suppressing and deodorizing additive, a preparation method thereof and a modified asphalt. The smoke suppressing and deodorizing additive is composed of free radical capturing agent, metal-organic framework compounds, inorganic adsorbing materials, reaction type odor inhibitor and base materials. According to the s smoke suppressing and deodorizing additive, the free radical capturing agent has termination reaction with micromolecular free radicals to reduce micromolecular volatile gas produced by free radical reaction; the metal-organic framework compounds canefficiently selectively adsorb and reduce discharged multiring hydrocarbon sulfur-containing thiophene materials; the inorganic adsorbing materials can enhance interaction between volatile organic compounds and an asphalt matrix to reduce overall emission; the reaction type odor inhibitor reacts with mercaptan in asphalt to reduce mission of one of odor sources, namely mercaptan, as well as hydrogen sulfide. Testing results show that by adding in the smoke suppressing and deodorizing additive, the smoke volatile amount of the asphalt at 180 DEG C is reduced by 70-88%, and emission of pollutants and odor sources can be significantly reduced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and more particularly relates to a smoke suppressing and deodorizing additive, a preparation method thereof, and a modified asphalt. Background technique [0002] Asphalt has the advantages of cheap price, corrosion resistance, good water resistance, and certain adhesion, but it also has shortcomings such as poor temperature stability, low temperature brittle cracking, and poor aging resistance. These shortcomings can be overcome by adding polymer modifiers. In order to make the asphalt material have new and new energy, the modification of the asphalt material by polymer generally needs to be carried out at a higher temperature to promote the swelling of the polymer in the asphalt and increase the swelling rate. Chinese patent application CN108690359A utilizes SBS to modify asphalt to prepare high-elasticity and high-viscosity modified asphalt, which involves the shearing process of he...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L87/00C08L91/06C08K13/04C08K7/24C08K5/07C08K5/08C08K5/32C08K5/3435
Inventor 魏晓虎李文志于猛朱明广张磊吕勇吴志强段文锋
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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