Low temperature resisting polymer modified emulsified asphalt waterproof coating

Abstract

The invention relates to a modified emulsified asphalt waterproof coating, and in particular relates to a low temperature resisting polymer modified emulsified asphalt waterproof coating which is waterproof, moisture-proof and corrosion-proof and is used in the fields of house roofs, undergrounds, indoors, roads and bridges and the like. The coating comprises the following ingredients in parts by weight: 20-40 parts of asphalt A, 1-10 parts of asphalt B, 10-30 parts of polymer emulsion, 0.5-3.0 parts of emulsifying agent, 20-40 parts of water, 10-30 parts of antifreeze agent, 0.1-0.6 part of drier and 0-1 part of thickening agent. The coating is large in film forming strength, high in extension, good in rebound resilience and good in low temperature performance; the formed film can be bent at the temperature of minus 40 DEG C repeatedly without crack and can be stored, transported and adopted for construction application in cold winter; and the coating is fast in film formation, short in drying time in winter construction and free from health damage on construction working personnel.

Description

technical field [0001] The invention relates to a modified emulsified asphalt waterproof coating, in particular to a low-temperature-resistant polymer modified emulsified asphalt waterproof coating for waterproofing, moisture-proofing, and anticorrosion used in the fields of roofing, underground, indoors, roads and bridges, etc. Background technique [0002] In May 2010, the "Environmental Labeling Product Technical Requirements for Waterproof Coatings" promulgated by the Ministry of Environmental Protection was officially implemented. It stipulates that glycol ethers and their esters and phthalates should not be artificially added to waterproof coatings. , diamines, alkylphenol polyoxyethylene ethers, ketones, halogenated hydrocarbon solvents. At the same time, the national standards for water-based coatings also put forward limit requirements for volatile organic compounds, radioactivity, formaldehyde, benzene, benzene-based solvents, and free toluene diisocyanate in curin...

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Problems solved by technology

[0003] At present, the waterproof coatings on the market are mainly divided into solvent-based and water-based waterproof coatings. Solvent-based waterproof coatings generally contain organic solvents such as formaldehyde, benzene, xylene, ketones, ethers, and halogenated alkanes that are harmful to the human body. Although waterproof coatings such as resins have no toxic and side effects, they contain certain volatile organic compounds (VOC). Only a few enterprises can meet the national standards for water-based coatings; water-based coatings generally do not contain organic volatile solvents that are harmful to the human body. However, it is greatly restricted by the ambient temperature, and transportation, storage, stacking and construction operations have high requirements on the ambient temperature. Water-based waterproof coatings will freeze when the temperature is below 0°C in cold winter

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