Toughened asphalt waterproof roll

Abstract

The invention discloses a toughened asphalt waterproof roll. The toughened asphalt waterproof roll consists of the following raw materials in parts by weight: 82-90 parts of asphalt, 4-5 parts of styrene-butadiene-styrene, 2-3 parts of polycarbodiimide, 0.8-2 parts of calcium lactate, 0.5-1 part of benzotriazole, 0.3-1 part of polyethylene benzenesulfonic acid, 5-6 parts of dioctyl sebacate, 27-30 parts of precipitated white carbon black, 30-40 parts of 0.7-1.6% of NaOH solution of dipotassium glycyrrhizinate, 6-10 parts of alkali lignin, 2-3 parts of epoxy chloropropane and 24-30 parts of mechanical oil. According to the toughened asphalt waterproof roll, epoxidation treatment is performed on alkali lignin to increase cross-linking degree of lignin molecules, and added into a resin system for effectively improving insulation, mechanical performance, thermal stability, adhesiveness and preservative effect of a finished product, and the finished product toughness is effectively improved and the breaking strength is strengthened because of added styrene-butadiene-styrene, polycarbodiimide, and the like.

Description

technical field [0001] The invention mainly relates to the field of coiled materials, in particular to a toughened 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 te...

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.