Emulsified asphalt for spraying and rapid hardening rubber asphalt waterproof coating material and preparation method of emulsified asphalt

A quick-setting rubber asphalt and waterproof coating technology, which is applied in the direction of asphalt coatings and coatings, can solve the problems of poor compatibility of polymer emulsions, insufficient demulsification time, poor low temperature resistance, etc., and achieve mechanical Good high-pressure shear stability, fast demulsification time, and good temperature stability

Inactive Publication Date: 2018-08-03
BEIJING AOTAILI NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the emulsified asphalt used for spraying rubber asphalt waterproof coatings has the following disadvantages: unstable storage, easy to delaminate; low temperature resistance is not good, generally below 0 ℃ will break the emulsion, asphalt precipitates and coagulates; The compatibility is not good, and it is necessary to add a dispersant to mix the asphalt emulsion with the rubber emulsion; the demulsification time cannot meet the requirements of the spray rubber asphalt waterproof coating standard, and the coagulant cannot be instantly demulsified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An emulsified asphalt for spraying quick-setting rubber asphalt waterproof coating, which consists of the following components in parts by weight: 90 parts of asphalt, 5 parts of maleic anhydride, 0.07 parts of tin tetrachloride, 50 parts of water, and 1.8 parts of anionic asphalt emulsifier , 0.5 parts of sodium hydroxide, 0.5 parts of sodium hydroxymethyl cellulose; the anionic asphalt emulsifier is prepared from the following raw materials in parts by weight: 2.5 parts of oleic acid, 8 parts of water, 1.3 parts of sodium hydroxide, twelve 1.4 parts of sodium alkylbenzene sulfonate, 2.6 parts of OP-10, 6 parts of rosin;

[0025] Wherein the anionic asphalt emulsifier is prepared by the method comprising the following steps:

[0026] 1) Mix and stir oleic acid and water evenly, then add sodium hydroxide, stir at 70r / min for 1.2 hours to obtain material A;

[0027] 2) Add sodium dodecylbenzenesulfonate to material A, continue stirring for 15 minutes, then add OP-10 and...

Embodiment 2

[0033] An emulsified asphalt for spraying quick-setting rubber asphalt waterproof coating, which consists of the following components in parts by weight: 80 parts of asphalt, 4 parts of maleic anhydride, 0.05 part of tin tetrachloride, 40 parts of water, and 1.5 parts of anionic asphalt emulsifier , 0.1 part of sodium hydroxide, 0.1 part of sodium hydroxymethyl cellulose; the anionic asphalt emulsifier is prepared from the following raw materials in parts by weight: 2 parts of oleic acid, 7.5 parts of water, 1.2 parts of sodium hydroxide, twelve 1.2 parts of sodium alkylbenzene sulfonate, 2.4 parts of OP-10, 5 parts of rosin;

[0034] Wherein the anionic asphalt emulsifier is prepared by the method comprising the following steps:

[0035] 1) Mix and stir oleic acid and water evenly, then add sodium hydroxide, and stir at 60r / min for 1.5 hours to obtain material A;

[0036] 2) Add sodium dodecylbenzenesulfonate to material A, continue stirring for 10 minutes, then add OP-10 an...

Embodiment 3

[0042] An emulsified asphalt for spraying quick-setting rubber asphalt waterproof coating, which consists of the following components in parts by weight: 100 parts of asphalt, 6 parts of maleic anhydride, 0.08 part of tin tetrachloride, 60 parts of water, and 2 parts of anionic asphalt emulsifier , 1 part of sodium hydroxide, 1 part of sodium hydroxymethyl cellulose; the anionic asphalt emulsifier is prepared from the following raw materials in parts by weight: 3 parts of oleic acid, 8.5 parts of water, 1.5 parts of sodium hydroxide, twelve 1.6 parts of sodium alkylbenzene sulfonate, 2.8 parts of OP-10, 8 parts of rosin;

[0043] Wherein the anionic asphalt emulsifier is prepared by the method comprising the following steps:

[0044] 1) Mix and stir oleic acid and water evenly, then add sodium hydroxide, stir at 80r / min for 1 hour to obtain material A;

[0045] 2) Add sodium dodecylbenzenesulfonate to material A, continue stirring for 20 minutes, then add OP-10 and continue s...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to emulsified asphalt for a spraying and rapid hardening rubber asphalt waterproof coating material and a preparation method of the emulsified asphalt. According to the emulsified asphalt disclosed by the invention, an anionic type asphalt emulsifying agent is prepared by adopting oleic acid, sodium hydroxide, sodium dodecyl benzene sulfonate, OP-10 and rosin and by combining reaction, and then maleic anhydride and tin tetrachloride are added for modifying asphalt, so that the temperature stability, the mechanical stability, the compatibility and the demulsification performance of the emulsified asphalt are improved, the requirements on spraying performance and waterproofness of the spraying and rapid hardening rubber asphalt waterproof coating material can be well met, and the defects that after traditional emulsified asphalt is applied to a spraying waterproof coating material, blocking and caking can be easily caused, the film forming property is poor, and the like are overcome.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to emulsified asphalt for spraying quick-setting rubber asphalt waterproof coating and a preparation method thereof. Background technique [0002] "Spray quick-setting coating" is produced by using a variety of synthetic polymer materials as the base material, superfine suspension emulsified asphalt as the modifier, and water as the medium through scientific processes such as catalysis, crosslinking, and emulsification. Its main waterproof mechanism is that a variety of polymer materials form a wrapping film on the surface of ultrafine asphalt molecules, and these molecules wrapped by polymers form a continuous network. And interpenetrating cross-linking. After the coating is dried and formed into a film, it maintains the high elasticity, low temperature flexibility, aging resistance of rubber materials and has strong puncture resistance, no water channeling, high temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C09D195/00
CPCC08J3/03C08J2395/00C09D195/00
Inventor 赵士棒
Owner BEIJING AOTAILI NEW TECH CO LTD
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