Tung oil modified bituminous waterproof sheet material

Abstract

The invention discloses a tung oil modified bituminous waterproof sheet material which includes the following raw materials in parts by weight: 82-90 parts of bitumen, 0.7-1 part of diphenyl silanediol, 0.4-1 parts of tung oil, 1-2 parts of benzyl triethyl ammonium chloride, 30-34 parts of precipitated white carbon black, 2-3 parts of iso-octyl methacrylate, 0.4-1 part of zinc dialkyl dithiophosphate, 1-2 parts of stearoyl-rac-glycerol, 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 and 1-2 parts of oxalic acid. According to the invention, the alkaline lignin is subjected to epoxidation treatment, so that the crosslinking degree of lignin molecules is improved; the mixing of alkaline lignin with esterfied bitumen further improves the insulation property, mechanical property, thermal stability and tackiness of the finished product; the tung oil modified bitumen is adopted to improve the surface water resistance.

Description

technical field [0001] The invention mainly relates to the field of coiled materials, in particular to a tung oil modified 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.