Modified asphalt coating material with excellent high and low temperature performance, waterproof roll and preparation method thereof

Abstract

The invention discloses a modified asphalt coating material with an excellent high and low temperature performance. The modified asphalt coating material with the excellent high and low temperature performance comprises the following components in parts by weight: 100 parts of matrix asphalt; 40 to 50 parts of an asphalt softener; 2 to 5 parts of a low-temperature auxiliary agent; 2 to 5 parts of a stabilizer; 6 to 10 parts of an SBS modifier; 40 to 60 parts of rubber powder; and 40 to 65 parts of powder. The low-temperature auxiliary agent is one or a mixture of more of castor oil, epoxidized soybean oil, industrial white oil and tea tree oil; and the stabilizer is one or a mixture of more of short glass fiber, long glass fiber and fatty acid sorbitan. The modified asphalt coating material provided by the invention has excellent ultra-high temperature resistance and ultra-low temperature resistance, is more aging-resistant, is more suitable for being applied to coiled materials of waterproof engineering in an extreme environment, and is low in cost and easy to popularize, and the adopted components do not harm the environment and human health. The invention also discloses a preparation method of the coating material, a waterproof roll using the coating material and a preparation method of the waterproof roll.

Description

technical field [0001] The invention relates to the field of building waterproof materials, more specifically, to a modified asphalt coating material and waterproof coiled material with excellent high and low temperature performance and a preparation method thereof. Background technique [0002] Waterproof membrane is mainly used in building walls, building basements, floors, roofs, tunnels, roads, landfills, etc., to resist the penetration of external rainwater and groundwater. It is a flexible building material product that can be rolled into rolls. , as the non-leakage connection between the engineering foundation and the building, it is the first barrier for the waterproofing of the entire project and plays a vital role in the entire project. At present, a kind of waterproof membrane commonly used in waterproof engineering is the waterproof membrane with SBS modified asphalt as the coating material. Certain requirements, it is difficult to cope with extreme high tempera...

AI Technical Summary

Problems solved by technology

Moreover, most of the existing low-temperature resistant coils also have many deficiencies.

For example, the Chinese invention patent "An ultra-low temperature SBS waterproof membrane and its preparation method" (publication number: CN111634097A, publication date: 2020.09.08) discloses an ultra-low temperature SBS waterproof membrane, which The modified asphalt layer on the side and the isolation layer located outside the modified asphalt layer, the modified asphalt layer includes petroleum asphalt and tourmaline negative ion powder, although this coil has certain low temperature flexibility, its low temperature resistance is not Unclear, the tourmaline negative ions used are expensive and have certain radiation, which has certain safety hazards to the environment and human body; Chinese invention patent "a modified asphalt waterproof membrane with low temperature resistance" (public number: CN109096780A, open date : 2018.12.28) discloses a low-temperature-resistant modified bitumen waterproofing membrane. Acetone, methyl ethyl ketone, and ultrasonic equipment are required in the preparation process. The preparation process is complicated, and the organic solvents used are likely to cause great harm to the environment and production workers. damage, moreover, this kind of waterproof membrane can only withstand the temperature of -45 ℃, and it does not involve aging resistance, so the performance is not ideal

In addition, the coating material layer of the above-mentioned ultra-low temperature resistant waterproof membrane itself does not have aging resistance, and it is difficult to achieve the same life span of the waterproof layer and the building. Over time, the building is prone to water seepage hazards

[0004] The Chinese invention patent "Preparation method of high temperature and ultra-low temperature resistant SBS modified asphalt waterproofing membrane" discloses a SBS modified asphalt waterproofing membrane resistant to ultra-high temperature and ultra-low temperature, which adopts plasma technology to treat Waste rubber powder and shale powder endow the coating material of waterproof membrane with high and low temperature resistance. However, this kind of coating material makes the waterproof membrane only resistant to high temperature of 115 ℃ and low temperature of -40 ℃, and its performance of ultra high and low temperature resistance is still insufficient

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