Composite emulsion modified emulsified asphalt and preparation method therefor

A technology of emulsified asphalt and composite emulsion, which is applied in the field of building waterproofing technology and anti-corrosion coatings, can solve the problems of unsatisfactory mechanical properties, waterproof performance and durability, unstable quality of waterproof coatings, and products flowing into the market, so as to improve the economics of enterprises The effect of benefit, low cost, and simple preparation method

Inactive Publication Date: 2015-11-25
重庆市化工研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are some following problems in my country's polymer modified asphalt waterproof coating: 1. solvent type polymer modified asphalt waterproof coating is bigger to environmental pollution, and the quality of water-emulsion type polymer modified asphalt waterproof coating is not stable enou

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of mass percentage of the emulsified asphalt formula modified by composite emulsion:

[0020] Base asphalt 11%;

[0021] Water 75%;

[0022] Emulsifier 0.3%;

[0023] Toughener 0.7%;

[0024] Stabilizer 0.5%

[0025] Dispersant 0.5%;

[0026] Filler 7%;

[0027] Composite modifier 5%

[0028] A preparation method of emulsified asphalt modified by composite emulsion is as follows:

[0029] According to the composition formula, proceed as follows:

[0030] a. At 45°C, add a dispersant, a composite modifier, and water for stirring to obtain a mixed solution;

[0031] b. Mix emulsifier, toughener and asphalt at 130°C to obtain emulsified asphalt;

[0032] c. Add the emulsified asphalt into the mixture and stir at high speed for 0.5 hours, then cool down;

[0033] d. Add stabilizer, filler and compound modifier successively, stir and mix for 0.5 hours, and then discharge.

Embodiment 2

[0035] A composition formula of emulsified asphalt modified by composite emulsion:

[0036] Base asphalt 14%;

[0037] Water 60%;

[0038] Emulsifier 0.5%;

[0039] Toughener 0.6%;

[0040] Stabilizer 0.2%;

[0041] Dispersant 0.7%;

[0042] Filler 10%;

[0043] Composite modifier 14%

[0044] A preparation method of emulsified asphalt modified by composite emulsion is as follows:

[0045] According to the composition formula, proceed as follows:

[0046] a. Under the condition of 75°C, add dispersant, composite modifier, and water to stir to obtain a mixed solution;

[0047] b. Mix emulsifier, toughener and asphalt at 170°C to obtain emulsified asphalt;

[0048] c. Add the emulsified asphalt to the mixture and stir it at high speed for 0.8 hours, then cool down;

[0049] d. Add stabilizer, filler and composite modifier successively, stir and mix for 1 hour, and then discharge.

Embodiment 3

[0051] A composition formula of emulsified asphalt modified by composite emulsion:

[0052] Base asphalt 7%;

[0053] water 50%;

[0054] Emulsifier 0.4%;

[0055] Toughener 0.8%;

[0056] Stabilizer 11.2%;

[0057] Dispersant 0.6%;

[0058] Filler 15%;

[0059] Composite modifier 15%

[0060] A preparation method of emulsified asphalt modified by composite emulsion is as follows:

[0061] According to the composition formula, proceed as follows:

[0062] a. At 65°C, add a dispersant, a compound modifier, and water to stir to obtain a mixed solution;

[0063] b. Mix emulsifier, toughener and asphalt at 175°C to obtain emulsified asphalt;

[0064] c. Add the emulsified asphalt into the mixture and stir at high speed for 0.5 hours, then cool down;

[0065] d. Add stabilizer, filler and composite modifier successively, stir and mix for 1 hour, and then discharge.

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PUM

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Abstract

The invention introduces composite emulsion modified emulsified asphalt for building waterproof engineering and anti-corrosion engineering, and a preparation method therefor. The composite emulsion modified emulsified asphalt comprises the following components in percentage by weight: 5-75% of matrix asphalt, 5-85% of water, 0.1-5% of an emulsifier, 1-40% of a toughening agent, 1-50% of a stabilizer, 0.1-40% of a dispersant, 1-20% of fillers and 1-80% of a composite modifier. The preparation method for the composite emulsion modified emulsified asphalt is as follows: at a certain temperature, adding the dispersant, the composite modifier and water, and stirring to obtain a mixed solution; mixing the emulsifier, the toughening agent and the asphalt at a certain temperature to obtain emulsified asphalt; adding the emulsified asphalt into the mixed solution, stirring at a high speed for a period of time, and cooling; and adding the stabilizer, the fillers and the composite modifier in sequence, stirring and mixing for a period of time, and discharging. According to the preparation method, various performances of the emulsified asphalt are improved by using compounded latex and reasonable proportion; and the composite emulsion modified emulsified asphalt can be used for building waterproof engineering and anti-corrosion engineering.

Description

technical field [0001] The invention belongs to the fields of building waterproof technology and anti-corrosion coatings, and relates to a composite emulsion modified emulsified asphalt and a preparation method of the asphalt. Background technique [0002] Building waterproof coatings are mainly made of synthetic polymer materials, asphalt, polymer modified asphalt, inorganic materials, etc., mixed with appropriate amount of additives, modified materials, filler materials, etc. Compared with waterproof coiled materials, waterproof coatings are simple and convenient to construct, suitable for substrates of any shape, and can form dense and seamless coating films. Therefore, waterproof coatings have been widely used in various waterproof projects and have achieved rapid development. develop. At present, waterproof coatings in industrially developed countries such as the United States, Britain, Japan, France, and Germany all occupy a considerable share in building waterproof m...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08J3/03
Inventor 周卫平唐翔宇游激张力杨开林陈明艳
Owner 重庆市化工研究院有限公司
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