Polymer modified asphalt waterproof roll and production method thereof

Abstract

The invention relates to a polymer modified asphalt waterproof roll and a production method thereof. The waterproof roll is a five-layer structure, and specifically includes, from top to bottom successively, an upper surface isolation layer, an upper polymer modified asphalt layer, a matrix layer, a lower polymer modified asphalt layer and a lower surface isolation layer. The upper polymer modified asphalt layer and the lower polymer modified asphalt layer are prepared from modified asphalt. According to the invention, through modification of asphalt with a polymer modifier, gamma-methacryloxypropyltrimethoxysilane, phenolated lignin, a tackifier and other substances, the obtained modified asphalt has stable properties, and the added modified nano calcium carbonate has high dispersibility,thus effectively improving the storage stability of the modified asphalt system. The waterproof roll prepared from the modified asphalt has improved tearing strength, cohesiveness, water resistance,aging resistance and the like, has high elongation at break, and has improved service life.

Description

technical field [0001] The invention relates to a waterproof material, in particular to a polymer modified bitumen waterproof coiled material and a production method thereof, belonging to the field of waterproof chemical materials. Background technique [0002] With the improvement of construction technology, the demand for waterproof materials for construction projects is also increasing, and the quality requirements are also getting higher and higher. With the progress of various engineering constructions, the problem of water seepage and leakage in roofs, floors, and basements has always troubled people. As a result, waterproof projects have emerged as the times require. Various waterproof materials emerge in endlessly. The waterproof industry is booming, and waterproof membranes are widely used in the construction industry. Among them, it is one of the important building materials. [0003] At present, there are three major series of waterproof coiled material products ...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned two documents have modified the bitumen to obtain a waterproof membrane with better performance, they have not used fillers such as calcium carbonate, carbon powder and talcum when preparing modified bitumen. When the unmodified filler is used to prepare modified asphalt and filled in various polymers, there will be obvious disadvantages: first, the surface is hydrophilic and oleophobic, and the dispersibility in the polymer is poor; It has poor binding force with the polymer body and can only play a role in compatibilization

The surface of these unmodified fillers is hydrophilic and oleophobic, and has poor compatibility and dispersion with polymers. When used to prepare modified asphalt and then used to produce waterproof membranes, it will affect the performance of the product.

For example, when a high proportion of fillers such as calcium carbonate and talcum powder are used to fill asphalt, the performance of the polymer material will drop sharply, making it difficult to process and use the product

Moreover, the above-mentioned two documents mentioned above produce modified asphalt waterproofing membranes, which are relatively cumbersome.

[0007] At present, the tensile strength of ordinary modified asphalt coils is not high; the integrity of the laying is also poor; after construction, there is a great risk of leakage; Although the material has high strength, its bonding performance is poor, the coiled material and the base layer are not tightly bonded, the production process is also relatively cumbersome, and the tensile strength is low, the tear resistance is low, the oxidation resistance is poor, and the service life is short. , it is difficult to adapt to the needs of various environments

Images