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A kind of coating composition and preparation method thereof

A composition and coating technology, which is applied in asphalt coatings, chloroprene homopolymer coatings, coatings, etc., can solve the problems of low solid content, high cost, and large latex content, and achieve high impervious pressure, High elongation at break and low transportation cost

Active Publication Date: 2018-05-11
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the preparation process of water-emulsion rubber asphalt waterproof coating generally adopts the process of first emulsification and then modification. Firstly, the base asphalt is emulsified to obtain emulsified asphalt, and then latex modifier and other materials are mixed with emulsified asphalt to obtain water emulsion. Type rubber asphalt waterproof coating has the disadvantages of low solid content, large latex content, and high cost.

Method used

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  • A kind of coating composition and preparation method thereof
  • A kind of coating composition and preparation method thereof
  • A kind of coating composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a kind of coating composition and preparation method thereof, and coating composition comprises the component as shown in Table 1;

[0044] Wherein, the softening point of the SBS modified asphalt is 56° C., the ductility is 45 cm, the penetration is 41; the rotational viscosity is 500 mPa·s.

[0045] Component and mass fraction of the coating composition prepared by the embodiment 1-4 of table 1

[0046]

[0047] The preparation method of coating composition is as follows:

[0048] To prepare soap:

[0049] Add the emulsifier, stabilizer, and neoprene latex into water to obtain a mixture according to the above-mentioned parts by mass, heat the mixture to 50°C, and adjust the pH to 1.5 with a pH regulator to obtain a soap liquid;

[0050] emulsification:

[0051] The SBS modified asphalt is heated to 165° C., and the SBS modified asphalt and defoamer are slowly added to the soap solution according to the above mass fractions for emulsifica...

Embodiment 2

[0057] This embodiment provides a kind of coating composition and preparation method thereof, and coating composition comprises the component as shown in Table 1;

[0058] Wherein, the softening point of the SBS modified asphalt is 70° C., the ductility is 21 cm, the penetration is 65; the rotational viscosity is 400 mPa·s.

[0059] The preparation method of coating composition is as follows:

[0060] To prepare soap:

[0061] Add the emulsifier, stabilizer, and neoprene latex into water to obtain a mixture according to the above mass parts, heat the mixture to 65°C, and adjust the pH to 3.5 with a pH regulator to obtain a soap liquid;

[0062] emulsification:

[0063] The SBS modified asphalt is heated to 150° C., and the SBS modified asphalt and the defoamer are slowly added to the soap solution according to the above mass fractions for emulsification.

[0064] The emulsification adopts a colloid mill, the rotation speed of the colloid mill is 1000r / min, and the emulsific...

Embodiment 3

[0069] This embodiment provides a kind of coating composition and preparation method thereof, and coating composition comprises the component as shown in Table 1;

[0070] Wherein, the softening point of the SBS modified asphalt is 60° C., the ductility is 30 cm, the penetration is 50, and the rotational viscosity is 200 mPa·s.

[0071] The preparation method of coating composition is as follows:

[0072] To prepare soap:

[0073]Add the emulsifier, stabilizer, and neoprene latex into water to obtain a mixture according to the above-mentioned parts by mass, heat the mixture to 60°C, and adjust the pH to 2.0 with a pH regulator to obtain a soap liquid;

[0074] emulsification:

[0075] The SBS modified asphalt is heated to 175° C., and the SBS modified asphalt and defoamer are slowly added to the soap solution according to the above mass fractions for emulsification.

[0076] The emulsification adopts a colloid mill, the rotation speed of the colloid mill is 4000r / min, and t...

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Abstract

The invention provides a coating composition and a preparation method thereof, which are used to solve the problems of low solid content, large latex content and high cost in the water-emulsion rubber asphalt waterproof coating in the prior art. The coating composition provided by the invention and the preparation method thereof have the following advantages due to the emulsification of the modified SBS modified asphalt and neoprene latex: the content of neoprene latex is reduced, and the product Cost; the solid content of the coating composition reaches 60%, the amount of material used per unit area is small, the construction efficiency is high, and the transportation cost is low; the coating composition is a water-based coating, which is safe and environmentally friendly, and has little harm to the health of construction personnel; the coating The elongation at break of the composition is large, greater than 1000 percent; the impervious pressure of the coating composition is high, up to 0.6 MPa, and there is no water seepage for 30 minutes.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a coating composition and a preparation method thereof. Background technique [0002] Rubber asphalt waterproof coatings can be divided into water-emulsion rubber asphalt waterproof coatings and solvent-based rubber asphalt waterproof coatings according to their composition. The dispersion medium of solvent-based rubber asphalt waterproof coating is an organic solvent, which has a strong smell, poor safety, easy to cause environmental pollution, and seriously endanger the health of production personnel, testing personnel and construction personnel. With the enhancement of people's awareness of environmental protection, water-emulsion rubber asphalt waterproof coatings with excellent environmental performance and cost advantages will be the future development direction. [0003] However, at present, the preparation process of water-emulsion rubber asphalt waterproof coating gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D153/02C09D111/02C09D7/61C09D7/65C09D7/63
Inventor 任玉飞刘金景王芳张玉贞
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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