Lightweight bituminous waterproof sheet material

Abstract

The invention discloses a lightweight bituminous waterproof sheet material. The lightweight bituminous waterproof sheet material comprises the following raw materials in parts by weight: 82-90 parts of asphalt, 0.1-0.3 part of amino trimethylene phosphonic acid, 0.6-1 part of sp-80, 3-5 parts of fluorite powder, 2-4 parts of decabromodiphenyl oxide, 0.4-1 part of N,N-diisopropylethanolamine, 26-30 parts of light calcium carbonate, 2-3 parts of dibutyl maleate, 20-30 parts of hydroxyl silicone oil, 30-40 parts of a 6% NaOH solution, 6-10 parts of alkaline lignin, 2-3 parts of epoxy chloropropane, 1-2 parts of boric acid and 2-3 parts of pentaerythritol. Alkaline lignin is subjected to epoxidation treatment, so that the crosslinking degree of lignin molecules is increased, and the alkaline lignin is mixed with esterified silicone oil to further improve the insulativity, the mechanical property, the thermal stability and the adhesiveness of the lightweight bituminous waterproof sheet material. The lightweight bituminous waterproof sheet material is light, convenient to transport and construct and excellent in flame retardancy and surface resistivity.

Description

technical field [0001] The invention mainly relates to the field of coiled materials, in particular to a lightweight asphalt waterproof coiled material. Background technique [0002] The waterproof material products made by impregnating asphalt or polymer waterproof materials on the carcass are provided in the form of rolls, called waterproof rolls, which are bendable sheet-like waterproof materials. Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc., to resist external rainwater and groundwater leakage, a flexible building material product that can be rolled into rolls, as an engineering basis There is no leakage connection with the building, it is the first barrier for the waterproofing of the whole project, and it plays a vital role in the whole project, and asphalt is recognized as a material with good waterproof performance, but due to the low temperature of the original asphalt The characteristics of brittleness, high temperat...

AI Technical Summary

Problems solved by technology

Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc., to resist external rainwater and groundwater leakage, a flexible building material product that can be rolled into rolls, as an engineering basis There is no leakage connection with the building, it is the first barrier for the waterproofing of the whole project, and it plays a vital role in the whole project, and asphalt is recognized as a material with good waterproof performance, but due to the low temperature of the original asphalt The characteristics of brittleness, high temperature flow resistance and poor aging performance need to be improved through technology

At present, the technical improvements for waterproofing mainly include catalytic oxidation asphalt, polymer modified asphalt, etc. These methods have high modification costs, complex processes, and have poor waterproof effects over time, and some are not conducive to construction.