Water-proof coiled material with self-adhesive layer structure

Abstract

The invention relates to a water-proof coiled material with a self-adhesive layer structure. The water-proof coiled material comprises a surface film, a lapping surface plastic edge film, a first asphalt layer, a first environment-friendly wide-temperature-variation self-adhesive layer and a bottom film, wherein a bottom film is compounded on the lower surface of the first environment-friendly wide-temperature-variation self-adhesive layer; the first asphalt layer and the surface film (1) are sequentially compounded on the upper surface of the first environment-friendly wide-temperature-variation self-adhesive layer; the surface film is narrower than the first asphalt layer; blank edges used for the lapping surface plastic edge film are reserved on the two side edges of the first asphalt layer respectively; the blank edges are lapping edges; and the lapping surface plastic edge film is compounded on the lapping edges. The self-adhesive layer of the water-proof coiled material of the invention is aqueous, does not have toxicity or smell, has high bonding strength with a substrate, high water-proofness and high weather resistance, is not influenced by temperature variation and can be stored and used for a long time. The coiled material has the advantages of simple and convenient production process and small equipment investment and is an advanced and practical substitute productfor self-adhesive asphalt or modified asphalt water-proof coiled material.

Description

Technical field [0001] The invention relates to a building waterproof material, in particular to an asphalt or modified asphalt waterproof coiled material with a self-adhesive layer structure with environmental protection and wide temperature change. Background technique [0002] At present, in the construction waterproofing industry of our country, the modified bitumen waterproofing membrane produced with asphalt or modified with SBS, APP and other materials is a widely used main waterproofing material. This material is often used in the initial production and construction. The back side of the material is heated with a blowtorch to melt the asphalt layer, and then directly pasted on the base layer of cement, red brick, etc., or prefabricated liquid asphalt is used as a binder to coat the substrate to bond the coil. [0003] After several years of application tests, it is found that this construction application method is not only time-consuming and labor-intensive, but also becau...

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Problems solved by technology

For this reason, a manufacturer can only adjust the formula according to the temperature changes of the four seasons or the time changes of different daily temperatures (see Table 1 below), and the production volume can only be arranged according to the customer's order time and construction time, and cannot be formulated in a planned way. The production target for the whole year is subject to certain restrictions on the overall development of the company;

[0006] 2. When some reasons are encountered in the process of sales, transportation and construction application, the products that have been produced in a certain period of time cannot be normally applied to the construction site according to the time period, the product quality will be affected due to the decrease of bonding performance, and waste will be caused ;

[0007] 3. When the self-adhesive modified asphalt waterproofing membrane is used on the roof of the building or other exposed parts, due to the sun exposure and the change of temperature difference between day and night and four seasons, the softened oil in the asphalt will escape quickly, making the asphalt or modified asphalt layer Hardening and cracking, reducing or losing the viscosity, resulting in the decrease of the bonding force between the coiled material and the substrate and disengagement, resulting in leakage, affecting the waterproof quality and service life of the building

[0008] 4. In the application construction, if the temperature changes rapidly and the construction period changes, it often happens that the anti-adhesive plastic film or anti-adhesive release paper compounded on asphalt or modified asphalt is difficult to remove, or it is difficult to bond with the substrate. The extreme phenomenon of bonding, thus, affects the quality of the construction and the progress of the project

The test data at the standard temperature (23±2°C) is in full compliance with the standard requirements, but in practical applications, users often receive complaints about the low bonding strength. Therefore, some users request replacement or return, some because Ask for compensation for losses, which will have a negative impact on corporate image and product brand, and also cause a lot of waste

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