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A kind of rubber-modified asphalt waterproof coating and its preparation method and application method

A kind of asphalt waterproof coating and rubber modification technology, which is applied in the direction of asphalt coating, carboxyl rubber coating, chloroprene homopolymer coating, etc., and can solve the problems of slow water volatilization, low solid content, long drying time, etc.

Active Publication Date: 2019-12-10
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its low solid content (about 45%), slow water volatilization rate, and manual brushing or roller coating process, this type of waterproof material must be painted multiple times during construction, and each time the brushing is thin and Long drying time, thus limiting its range of use

Method used

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  • A kind of rubber-modified asphalt waterproof coating and its preparation method and application method
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  • A kind of rubber-modified asphalt waterproof coating and its preparation method and application method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Embodiment 1: the preparation of rubber modified asphalt waterproof coating of the present invention

[0084] Table 1: Component A raw materials

[0085]

[0086]

[0087] Table 2: B component raw materials

[0088] components g calcium chloride 9 Sodium chloride 1 Deionized water 90

[0089] The preparation of rubber modified asphalt waterproof paint of the present invention:

[0090] 1. The modified asphalt is prepared by the following preparation method:

[0091] (a) Add the asphalt heated to 130°C into the mixing pot, raise the temperature to 160°C, and start the electric mixer at a speed of 100-200rpm;

[0092] (b) Add modifier and tackifying resin to the system obtained in step (a), heat at 170°C, stir at 50-100rpm, until there are no infusible particles;

[0093] (c) Emulsify the system obtained in step (b) with a high-speed shear emulsifier at a rotational speed of 1000-2000 rpm for about 30 minutes, discharge, and obt...

Embodiment 2

[0103] Embodiment 2: the preparation of rubber modified asphalt waterproof coating of the present invention

[0104] Table 3: A component raw materials

[0105]

[0106]

[0107] Table 4: Component B Raw Materials

[0108] components g calcium nitrate 9 Sodium chloride 1 Deionized water 90

[0109] The preparation of rubber modified asphalt waterproof paint of the present invention:

[0110] 1. The modified asphalt is prepared by the following preparation method:

[0111] (a) Add the asphalt heated to 130°C into the mixing pot, raise the temperature to 160°C, and start the electric mixer at a speed of 100-200rpm;

[0112] (b) Add modifier and tackifying resin to the system obtained in step (a), heat at 170°C, stir at 50-100rpm, until there are no infusible particles;

[0113](c) Emulsify the system obtained in step (b) with a high-speed shear emulsifier at a rotational speed of 1000-2000 rpm for about 30 minutes, discharge, and obta...

Embodiment 3

[0123] Embodiment 3: the preparation of rubber-modified asphalt waterproof coating of the present invention

[0124] Table 5: Component A Raw Materials

[0125]

[0126]

[0127] Table 6: B component raw materials

[0128] components g calcium nitrate 8 Sodium chloride 1 Deionized water 91

[0129] The preparation of rubber modified asphalt waterproof paint of the present invention:

[0130] 1. The modified asphalt is prepared by the following preparation method:

[0131] (a) Add the asphalt heated to 130°C into the mixing pot, raise the temperature to 160°C, and start the electric mixer at a speed of 100-200rpm;

[0132] (b) Add modifier and tackifying resin to the system obtained in step (a), heat at 170°C, stir at 50-100rpm, until there are no infusible particles;

[0133] (c) Emulsify the system obtained in step (b) with a high-speed shear emulsifier at a rotational speed of 1000-2000 rpm for about 30 minutes, discharge, and obt...

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Abstract

The invention provides a rubber modified asphalt waterproof coating which comprises a component A and a component B, wherein the component A comprises modified emulsified asphalt and a rubber emulsion; the component B comprises inorganic salt and deionized water; the component A comprises the following components in parts by mass: 60-90 parts of the modified emulsified asphalt, and 10-40 parts of the rubber emulsion; and the component B comprises the following components in parts by mass: 9-14 parts of the inorganic salt and 86-91 parts of the deionized water. Through the development of the component A and the component B and application of a double-component spraying machine, the problem that cation emulsified asphalt is long in demulsification time is solved, full-pavement without seams and normal temperature cold construction of waterproof coatings are achieved, and in addition, the waterproof effect is greatly improved.

Description

technical field [0001] The invention relates to the field of waterproof materials, in particular to a rubber-modified asphalt waterproof coating and its preparation method and application method Background technique [0002] In recent years, with the rapid development of high-speed railways and construction fields and the emphasis and strengthening of operation and maintenance, the demand for waterproof materials, especially for railways, tunnels, bridges, underground structures and other surface layers, is also increasing. Compared with commonly used waterproof boards and waterproof membranes, waterproof coatings are unique for their strong integrity, continuous and seamless coating, and various construction methods (brush, roller, spray). Among them, water-based coatings are widely favored due to their advantages such as low requirements on the base surface (dry, wet, etc.), and environmental protection; rubber-modified emulsified asphalt waterproof coatings are more popul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D111/02C09D109/08C09D113/02C09D7/61C09D7/63C09D7/65B05D1/02
CPCB05D1/02C08K2003/162C08K2003/287C08L2205/035C09D195/00C08L11/00C08L45/00C08L29/04C08L11/02C08L13/02C08L9/08C08K3/16C08K5/098C08L9/06C08L45/02C08L75/04C08K3/28C08L13/00C08L23/22C08L1/284
Inventor 贾恒琼李海燕吴韶亮王涛魏曌杜玮张琪王炳岩
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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