A kind of asphalt-based polymer self-adhesive waterproofing membrane and preparation method thereof

Abstract

The invention discloses an asphalt-based macromolecule self-adhesive waterproof coiled material, which is characterized in that it comprises a tire base moisture barrier layer, independent self-adhesive asphalt-based waterproof rubber material layers located on the upper and lower sides of the tire base moisture barrier layer and On the side of the self-adhesive asphalt-based waterproof rubber material layer away from the moisture-barrier layer of the tire base, each independent isolation film layer; the self-adhesive asphalt-based waterproof rubber material layer includes the following components by weight: 65-75 parts of asphalt, Rosin-based triazine-based condensation polymer 5-10 parts, chlorosulfonated polyethylene 10-15 parts, (octahydro-4,7-methylene-1H-indene-1,5-ylidene) bis(methylene ) 1-3 parts of diacrylate, 2-5 parts of rosin-based hyperbranched polyester, 3-6 parts of silicon carbide nanofibers, 0.5-0.8 parts of coupling agent, and 0.01-0.03 parts of initiator. The invention also discloses a preparation method of the asphalt-based polymer self-adhesive waterproof coiled material. The asphalt-based polymer self-adhesive waterproof membrane disclosed by the invention has remarkable waterproof effect, good weather resistance and high temperature resistance, excellent mechanical and mechanical properties, high seam peeling strength, good low temperature flexibility and long service life.

Description

technical field [0001] The invention relates to the technical field of building waterproof materials, in particular to an asphalt-based polymer self-adhesive waterproof membrane and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of the technical level of my country's construction industry, all kinds of buildings in the new era have sprung up like mushrooms, imprinting the imprint of modern civilization on the cities of the new era, giving people a new look. However, behind the construction of these construction projects, there are still some problems that people have to face. For example, water seepage and leakage often occur in the roof, ground, and basement. With high hopes, it plays a vital role in building waterproofing projects. [0003] Waterproof membrane is mainly used in building walls, roofs, tunnels, roads, landfills, etc., to resist external rainwater and groundwater leakage, a flexible buildin...

AI Technical Summary

Problems solved by technology

[0004] The waterproof membrane in the prior art has a single raw material formula and simple process. After construction, the seam peeling strength is poor. When the base layer expands, it will be pulled apart at the lap joint, and the lap joint will fail, resulting in water seepage at the seam. The waterproof layer of the building faces severe challenges and even suffers damage

In addition, the waterproof membranes in the prior art are more or less insufficient in high and low temperature resistance, low temperature flexibility and low temperature strength, continuous high temperature is easy to soften and flow, puncture resistance, cyclic load resistance and adhesion Technical flaws with lower performance

[0005] The existing asphalt waterproofing membrane is usually made of polyester non-woven fabric as the base cloth, and then coated with asphalt layer on the front and back, and finally bonded polypropylene non-woven fabric outside the asphalt layer, this bitumen waterproofing membrane Good water resistance, but not enough temperature resistance, especially when constructing in high temperature and hot areas, the outdoor temperature can reach above 60°C. At this time, the asphalt in the asphalt waterproofing membrane will become soft after being heated, and the viscosity will increase. The asphalt layer is prone to slip after being stepped on or squeezed by other objects, which not only affects the construction, but also fundamentally affects the waterproof performance of the membrane