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Plant asphalt emulsion, preparation method, water emulsion modified plant asphalt waterproof coating using plant asphalt emulsion and preparation method

A plant asphalt and waterproof coating technology, applied in asphalt coatings, coatings, building structures, etc., can solve problems such as difficult maintenance, environmental pollution, and brittle cracks, and achieve the effect of excellent film-forming performance and convenient construction

Inactive Publication Date: 2016-05-25
河南建筑材料研究设计院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the modified material is reclaimed rubber, its technical performance is relatively unstable
The traditional hot-boiled asphalt waterproof coating requires hot construction, above 200°C, it is easy to bubble, brittle, often leaks, difficult to maintain, and pollutes the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0052] A kind of preparation method of vegetable asphalt emulsion, concrete steps are:

[0053] First, add the weighed deionized water into the 1# reactor, add emulsifier, defoamer A and thickener, control the stirring speed at 300r / min, after the solution is uniform and stable, gradually slow down the stirring speed to 100r / min, after the bubbles disappear, turn on the reactor heater, heat to 85±2°C while stirring, and the obtained emulsion is ready for use;

[0054] Next, styrene maleic acid is diluted with deionized water 1:1, and the initiator ammonium persulfate is diluted with deionized water 1:1, and then the diluted solution is added to 1# reactor respectively, and the temperature is raised to 90± 2°C, keep warm;

[0055] Again, add plant asphalt into 2# reactor, heat to 100±2°C, filter to remove impurities;

[0056] Fourth, open the colloid mill and open the discharge valves of 1# and 2# reactors at the same time, and flow the materials in the 1# and 2# reactors int...

Embodiment 1

[0077] A plant asphalt emulsion, prepared from the following raw materials in parts by weight: 45 parts of plant asphalt, 48 parts of deionized water, 0.3 part of styrene maleic acid, 0.8 part of polyoxyethylene ether as a stabilizer, and an initiator over 0.1 part of ammonium sulfate, 0.6 part of emulsifier A sodium dodecylbenzenesulfonate, 0.3 part of antifoaming agent A polydimethylsiloxane, and 0.5 part of thickener sodium methylcellulose.

[0078] A kind of preparation method of vegetable asphalt emulsion, concrete steps are:

[0079] First, add the weighed deionized water into the 1# reactor, add emulsifier, defoamer A and thickener, control the stirring speed at 300r / min, after the solution is uniform and stable, gradually slow down the stirring speed to 100r / min, after the bubbles disappear, turn on the reactor heater, heat to 85°C while stirring, and the obtained emulsion is ready for use;

[0080] Next, dilute styrene maleic acid 1:1 with deionized water, dilute the...

Embodiment 2

[0089] A plant asphalt emulsion, prepared from the following raw materials in parts by weight: 50 parts of plant asphalt, 53 parts of deionized water, 0.4 part of styrene maleic acid, 0.8 part of stabilizer polyoxyethylene ether, initiator over 0.3 part of ammonium sulfate, 0.6 part of emulsifier A sodium dodecylbenzenesulfonate, 0.3 part of antifoaming agent A polydimethylsiloxane, and 0.5 part of thickener sodium methylcellulose.

[0090] A kind of preparation method of vegetable asphalt emulsion, concrete steps are:

[0091] First, add the weighed deionized water into the 1# reactor, add emulsifier, defoamer A and thickener, control the stirring speed at 300r / min, after the solution is uniform and stable, gradually slow down the stirring speed to 100r / min, after the bubbles disappear, turn on the reactor heater, heat to 83°C while stirring, and the obtained emulsion is ready for use;

[0092] Next, dilute styrene maleic acid 1:1 with deionized water, dilute the initiator a...

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Abstract

The invention discloses plant asphalt emulsion and a water emulsion modified plant asphalt waterproof coating using the plant asphalt emulsion. The plant asphalt emulsion is prepared from plant asphalt, deionized water, styrene cis-butadiene diacid, a stabilizer, an initiator, an emulsifier A, a defoamer A and a thickener. The water emulsion modified plant asphalt waterproof coating using the plant asphalt emulsion comprises the following various raw materials: the plant asphalt emulsion, elastic emulsion, talcum powder, deionized water, light calcium carbonate, hydroxy propyl cellulose, short fibers, a dispersing agent, a defoamer B, a water repellent, a preservative, a surfactant and an emulsifier B. An environment of a technological process is clean, water serves as a carrier diluent, and therefore, the plant asphalt emulsion and the water emulsion modified plant asphalt waterproof coating are nontoxic, harmless, environmentally friendly, pollution-free, corrosion-free and combustion-free, and belong to aqueous system non-dangerous products. The products are convenient to construct, excellent in film-forming property and suitable for waterproofing of a roof and underground impermeability.

Description

technical field [0001] The invention relates to a building waterproof coating, in particular to a water-emulsion type modified plant asphalt waterproof coating used in various waterproof system projects such as buildings, bridges, roads and tunnels, and a preparation method thereof. Background technique [0002] Leakage in houses has always been a long-standing problem in the construction industry, mainly due to poor quality waterproof materials. At present, there are three main types of high-tech waterproof coatings used at home and abroad: the first type is solvent-based, and its main disadvantages are high cost, poor safety, harmful to human body, flammable, polluting the environment, and not widely used; the second type is Water-emulsion polymer coatings are expensive and not ideal; the third type is elastic modified asphalt, which has good flexibility at low temperature but poor performance at high temperature. At the end of the 1980s, my country began the research on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L71/02C08L83/04C08L1/28C08J3/07C09D195/00C09D7/12
CPCC08J3/07C08J2395/00C08L95/00C08L2205/035C08L2205/16C09D195/00C09D7/61C09D7/65C08L71/02C08L83/04C08L1/28C08L101/00C08L1/284C08L23/12C08K13/02C08K2003/265C08K3/34
Inventor 王治王连伟郭敬东胡浩然
Owner 河南建筑材料研究设计院有限责任公司
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