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Emulsified asphalt, a preparation method thereof, applications thereof, a water-proof coating material and a water-proof coating

A technology of emulsified asphalt and emulsifier, which is applied in the direction of asphalt paint, coating, chloroprene homopolymer paint, etc. It can solve the problems of cumbersome construction process, time-consuming, insufficient waterproof coating strength, etc., and achieve high strength, The effect of high curing and setting speed and good storage stability

Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction process of this method is cumbersome and time-consuming, and the strength of the formed waterproof coating is insufficient

Method used

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  • Emulsified asphalt, a preparation method thereof, applications thereof, a water-proof coating material and a water-proof coating
  • Emulsified asphalt, a preparation method thereof, applications thereof, a water-proof coating material and a water-proof coating
  • Emulsified asphalt, a preparation method thereof, applications thereof, a water-proof coating material and a water-proof coating

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preparation example Construction

[0039] According to the method of the present invention, the polymer modified asphalt can be prepared by various methods commonly used in the art. For example, the preparation method of the polymer-modified asphalt may include: mixing base asphalt with at least one polymer modifier in the presence of a compatibilizer with or without to obtain a polymer-modified asphalt. The base asphalt can be mixed with at least one polymer modifier by various methods commonly used in the art. For example, the polymer-modified asphalt can be obtained by mixing base asphalt with a polymer modifier at a temperature of 160-180°C. From the perspective of further improving the compatibility of the base asphalt and the polymer modifier, the mixing of the base asphalt and the polymer modifier is preferably carried out in the presence of a compatibilizer. For example, at least one compatibilizer and at least one polymer modifier can be successively added to the base asphalt at a temperature of 160-1...

Embodiment 1

[0060] Composition formula of polymer modified emulsified asphalt (by weight):

[0061]

[0062] The balance is water

[0063] Among them, the base asphalt is No. 70 heavy traffic road asphalt commercially purchased from Zhenhai Refining and Chemical Co., Ltd., with a penetration of 68.1;

[0064] The polymer modifier is the styrene-butadiene-styrene terpolymer of SBS 1301 commercially available from Yueyang Petrochemical, wherein the total amount of styrene-butadiene-styrene terpolymer As a benchmark, the content of structural units formed by styrene is 30% by weight, and the content of structural units formed by butadiene is 70% by weight;

[0065] The compatibilizer is aromatic hydrocarbon oil (commercially purchased from Qilu Petrochemical) with an aromatic content of 70% by weight;

[0066] The emulsifier is a compound emulsifier of sodium dodecylbenzenesulfonate and ammonium stearate, and the weight ratio of the two is 1:3.

[0067] The preparation method of emulsi...

Embodiment 2

[0075] Composition formula of polymer modified emulsified asphalt (by weight):

[0076]

[0077] The balance is water

[0078] Wherein, the matrix asphalt is No. 90 heavy traffic road asphalt commercially purchased from Jinan Petrochemical, and the penetration is 94.4;

[0079] The polymer modifier is a commercially available styrene-butadiene-styrene terpolymer of SBS 1401 from Yueyang Petrochemical, wherein the total amount of styrene-butadiene-styrene terpolymer As a benchmark, the content of structural units formed by styrene is 40% by weight, and the content of structural units formed by butadiene is 60% by weight;

[0080] The compatibilizer is an aromatic oil with an aromatic content of 75% by weight (commercially purchased from Yanshan Petrochemical);

[0081] The emulsifier is ammonium stearate.

[0082] The preparation method of emulsified asphalt is:

[0083] Step 1: Provide polymer modified bitumen

[0084] Heat the base asphalt to 175°C, add a compatibiliz...

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Abstract

The invention provides emulsified asphalt, a preparation method thereof and applications thereof. Based on the total weight of the emulsified asphalt, the emulsified asphalt comprises 50-70% by weight of polymer modified asphalt, 1.5-18% by weight of at least one anionic emulsifier and 22-48.5% by weight of water. The invention also provides a water-proof coating material and a water-proof coating formed by the coating material. The emulsified asphalt has good storage stability and the water-proof coating prepared from the emulsified asphalt has high curing and coagulating rate. In addition, the water-proof coating formed by the water-proof coating material prepared from the emulsified asphalt is high in strength.

Description

technical field [0001] The invention relates to an emulsified asphalt and its preparation method and application; the invention also relates to a waterproof coating containing the emulsified asphalt and a waterproof coating formed by the waterproof coating. Background technique [0002] Asphalt is a mixture of various polymer materials with complex chemical composition, which has good adhesion, aging resistance and waterproof ability. Emulsified asphalt refers to the emulsion formed by heating and melting asphalt, and dispersing fine particles in an aqueous solution containing an emulsifier under the force of mechanical stirring. According to the electrical properties of the emulsifier used, emulsified asphalt can be divided into cationic emulsified asphalt, anionic emulsified asphalt and nonionic emulsified asphalt. Emulsified asphalt can be used for interlayer treatment of asphalt pavement, for example, it can form permeable layer, sticky layer, road waterproof layer and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08J3/03C09D195/00C09D111/02
Inventor 张敬义黄婉利吴立报罗望群董德安沈家永
Owner CHINA PETROLEUM & CHEM CORP
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