Multilayer waterproof roll for composite internal-enhancing fabric and production process thereof

Abstract

The invention creates and provides a multilayer waterproof roll for a composite internal-enhancing fabric and a production process thereof. The multilayer waterproof roll comprises a surface layer, aninternal-enhancing fabric layer, a back layer and a back-lining layer which are sequentially adhered from top to bottom, wherein the surface layer and the back layer are high molecular material layers, the internal-enhancing fabric layer is polyester gridding cloth, and the back-lining layer is polyester fiber cloth. Multiple layers of the multilayer waterproof roll can be composited by virtue ofa three-roll calender through a synchronous composite process, so that the compositing strength among composite layers can be furthest guaranteed; and the strength of the multilayer waterproof roll is mainly supplied by the internal-enhancing polyester gridding cloth in the use process, and the applicability is supplied by the back-lining layer, so that the mutual complementation of the advantages and disadvantages of reinforcing ribs and back linings is realized.

Description

technical field [0001] The invention belongs to the field of building material industry, and in particular relates to an improved waterproof coiled material. Background technique [0002] At present, the more common waterproof membranes in polymer waterproof membranes are classified according to the material composition: H type (homogeneous), P type (reinforced), L type (backing), G type (glass fiber), GL type Class (glass fiber backing), among which Class H, Class P and Class L have a high usage rate due to their outstanding advantages. [0003] The P-type membrane is the reinforced internally reinforced waterproof membrane, which uses polyester fiber fabric (grid type) as the reinforcement layer. Through a special extrusion process, the main material such as double-sided PVC or TPO and the middle polyester fiber The fabric reinforcement layer is combined into one polymer waterproof membrane. During the production process, the reinforcing rib is fully bonded to the membra...

AI Technical Summary

Problems solved by technology

[0006] Composite waterproof membranes often have a three-layer or four-layer structure. The production process is more complicated than that of the homogeneous type, and the equipment forms are also quite different.

The existing composite process is often completed in a step-by-step composite method. The first layer is composited with the composite material layer (second layer), and then the second layer is composited with the third and fourth layers of materials after molding. And get the final product, increase the production process and cost of the product, and the composite strength of the composite waterproof membrane obtained at last is also weak

[0007] In addition, the existing compounding process mostly uses a six-roll calender, and there is a material heating and preheating process before the secondary compounding, which increases equipment investment and takes up more production space; secondly, the heating and preheating process requires more heat. High, it is necessary to raise the first composite material by 60-80°C in a short time, which increases the energy consumption process, and the interlayer composite strength of the product is poor

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