Emulsified SBS modified asphalt and reparation method thereof, waterproof coating and reparation method thereof

A technology of modified asphalt and waterproof coatings, which is applied in the direction of asphalt coatings, chloroprene homopolymer coatings, coatings, etc. It can solve the problems of large promotion obstacles, difficulty in reducing the price of waterproof coatings, and high prices, so as to improve storage Stability, good storage stability, good effect of base bonding performance

Inactive Publication Date: 2016-02-10
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of water-emulsion polymer modified asphalt waterproof coating is mostly prepared by mixing polymer emulsion with emulsified asphalt, and the price of polymer emulsion is generally high, making the price of water-emulsion polymer modified asphalt waterproof coating Difficult to reduce...

Method used

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  • Emulsified SBS modified asphalt and reparation method thereof, waterproof coating and reparation method thereof
  • Emulsified SBS modified asphalt and reparation method thereof, waterproof coating and reparation method thereof

Examples

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Embodiment 1

[0029] This embodiment provides an emulsified SBS modified asphalt, the formula expressed in parts by mass includes: 100 parts of base asphalt; 6 parts of SBS; 2 parts of anionic emulsifier; 60 parts of water. The base pitch is 70# petroleum pitch; the anionic emulsifier is a mixture (mass ratio of 2:1) of a sulfonate emulsifier and a benzenesulfonate emulsifier; the SBS is a linear SBS sulfide 1401.

[0030] The present embodiment also provides the preparation method of above-mentioned emulsified SBS modified asphalt, is characterized in that, comprises the following steps:

[0031] SBS is poured in mineral spirits, obtains the SBS solution that concentration is 30wt%;

[0032] After the base asphalt is heated to 125°C to melt, then the SBS solution is added to it, and then heated to 150°C to volatilize the solvent oil to obtain SBS modified asphalt;

[0033] The SBS modified asphalt was heated to 136° C., the heated SBS modified asphalt was mixed and emulsified with an ani...

Embodiment 2

[0039] This embodiment provides a kind of emulsified SBS modified asphalt, its formula expressed in parts by mass includes: 95 parts of base asphalt; 2 parts of SBS; 1 part of stabilizer; 2 parts of sodium hydroxide; 1 part of anionic emulsifier; 1 part of medicine; 70 parts of water. The base pitch is 90# petroleum pitch; the stabilizer is a mixture (mass ratio of 3:5) of hydroxymethyl cellulose and hydroxyethyl cellulose; the anionic emulsifier is a carboxylate emulsifier; The nonionic emulsifier is alkylphenol polyoxyethylene ether; the SBS is LG501.

[0040] The present embodiment also provides the preparation method of above-mentioned emulsified SBS modified asphalt, is characterized in that, comprises the following steps:

[0041] SBS is poured in mineral spirits, obtains the SBS solution that concentration is 5wt%;

[0042] After the base asphalt is heated to 120°C to melt, then the SBS solution is added to it, and then heated to 155°C to volatilize the solvent oil to o...

Embodiment 3

[0048] This embodiment provides a kind of emulsified SBS modified asphalt, its formula expressed in parts by mass includes: 90 parts of base asphalt; 8 parts of SBS; 6 parts of stabilizer; 1 part of sodium hydroxide; 5 parts of anionic emulsifier; 5 parts of agent; 95 parts of water. The base asphalt is 100# petroleum asphalt; the stabilizer is polyvinyl alcohol; the anionic emulsifier is a phosphate salt emulsifier; the nonionic emulsifier is sorbic acid monooleate and fatty alcohol poly A mixture of oxyethylene ethers (mass ratio is 2:1); the SBS is a mixture of star SBS Yanhua 4402 and Baling Petrochemical 803 (mass ratio is 2:1).

[0049] The present embodiment also provides the preparation method of above-mentioned emulsified SBS modified asphalt, is characterized in that, comprises the following steps:

[0050] SBS is poured in mineral spirits, obtains the SBS solution that concentration is 25wt%;

[0051] After the base asphalt is heated to 130°C to melt, then the SBS...

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Abstract

The invention discloses emulsified SBS modified asphalt and a reparation method thereof, a waterproof coating and a reparation method thereof. The emulsified SBS modified asphalt is prepared from, by mass, 80-110 parts of matrix asphalt, 2-12 parts of SBS, 0-6 parts of stabilizer, 0-4 parts of sodium hydroxide, 1-5 parts of anionic emulsifier, 0-5 parts of non-ionic emulsifier and 45-95 parts of water. According to the emulsified SBS modified asphalt and the reparation method thereof, the waterproof coating and the reparation method thereof, the SBS serves as a modifying agent, a continuous island structure is formed in matrix asphalt particles, the mechanical property is improved, meanwhile styrene and butadiene chain segments are introduced into the SBS, the compatibility between the emulsified SBS modified asphalt and polymer emulsion in the waterproof coating is improved, and the storage stability of the obtained waterproof asphalt coating can be improved; when JC/T408-2005 'Emulsified Asphalt Waterproof Coating is met while the tensile strength reaches over 0.6MPa, the content of polymer emulsion in the waterproof coating is lowered, and the cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of asphalt materials, and in particular relates to an emulsified SBS modified asphalt and a preparation method thereof, a waterproof coating and a preparation method thereof. Background technique [0002] Petroleum asphalt is a product of crude oil processing. It is a black or dark brown viscous liquid or solid at room temperature. It is a brown-black organic gelatinous substance. The main components of petroleum asphalt are asphaltene and resin, followed by high boiling point mineral oil and a small amount of oxygen, sulfur and chlorine compounds. Petroleum asphalt is shiny, in liquid, semi-solid or solid state, brittle at low temperature, and has good bonding performance. Emulsified asphalt is the liquid asphalt produced by asphalt and emulsifier under the action of a certain process, which is oil-in-water or water-in-oil. [0003] Petroleum asphalt used in waterproofing projects has the advantages of ea...

Claims

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Application Information

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IPC IPC(8): C08J3/03C08L95/00C08L53/02C09D195/00C09D111/00C09D125/14C09D133/04C09D125/10C09D7/12
Inventor 于猛李文志郭子斌吴志强段文锋韩忠强
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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