Reactive SBS (styrene-butadiene-styrene) modified asphalt and self-adhesive waterproof coiled material prepared from same

Abstract

The invention relates to a reactive SBS (styrene-butadiene-styrene) modified asphalt and a self-adhesive waterproof coiled material prepared from the same, belonging to the field of waterproof materials. The scheme is as follows: the reactive SBS modified asphalt is prepared from the following components in parts by weight: 45-60 parts of petroleum asphalt, 10-15 parts of maleated SBS rubber, 3-6parts of ethylene propylene diene monomer, 3-6 parts of coumarone indene resin, 2-4 parts of terpene resin and 20-35 parts of activated calcium carbonate. The maleic-anhydride-grafted SBS rubber can react with active groups in the asphalt to form a powerful three-dimensional network, thereby enhancing the integral strength of the asphalt and improving the high / low-temperature properties and ageing resistance of the asphalt. The self-adhesive waterproof coiled material prepared from the reactive SBS modified asphalt comprises a waterproof layer and a release film layer coated on one side of the waterproof layer, wherein the waterproof layer is a tyre base dipped with the reactive SBS modified asphalt. The waterproof coiled material has high adhesive force with the base layer to be laid, and the coiled materials self-adhere to each other at the overlap joint through the modified asphalt instead of adding adhesive or heating.

Description

technical field [0001] The invention belongs to the field of waterproof materials, and relates to a reactive SBS rubber chemically modified bitumen, and also relates to a self-adhesive waterproof roll material prepared by using the modified bitumen. Background technique [0002] Leakage is often called the cancer of construction by everyone. It is a very serious project quality problem. Waterproof membranes can withstand high water pressure and are an effective means to prevent leakage. However, when laying ordinary waterproof membranes for construction, in order to enhance the adhesion between the waterproof membranes and the base surface of the building, it is usually necessary to heat the waterproof membranes or paint the laying surface of the waterproof membranes with volatile Solvent adhesives. This construction method not only endangers the health of workers, but also consumes electricity and heat, and wastes working hours. [0003] Based on the above problems, resea...

AI Technical Summary

Problems solved by technology

Although physical blending can improve the performance of asphalt to a certain extent, pure mechanical dispersion and wrapping cannot cover up the thermodynamic incompatibility between rubber and asphalt, and it is difficult for the two to form a stable system