A kind of waterproof vapor permeable film tape and preparation method thereof

Abstract

The invention belongs to waterproof and energy-saving materials for buildings, and discloses a waterproof vapor-permeable film adhesive tape and a preparation method thereof. The waterproof and vapor-permeable film adhesive tape is compounded by utilizing the essential properties of various functional materials and the tight connection between the functional materials. The compounding of each functional material layer of the adhesive tape significantly improves the transverse and longitudinal tensile strength of the vapor-permeable film adhesive tape. The bonding layer used for compounding the materials of each functional layer can protect the materials of each functional layer to the greatest extent, improves the firmness of the tape, and is not easy to be punctured. Each adhesive layer ensures high moisture permeability at the joints of the building through the scattered and spaced coating method, and also prevents the adhesive layer from blocking water vapor on the wall. In the preparation process of the tape, the steps are simple and convenient, the preparation equipment is less, no experienced operators are needed, the labor consumption is reduced, the quality is guaranteed, and the preparation efficiency is significantly improved, which is suitable for batch production in major factories in production.

Description

technical field [0001] The invention belongs to the technical field of waterproof vapor-permeable film and its preparation, and in particular relates to a waterproof vapor-permeable film adhesive tape and a preparation method thereof. Background technique [0002] With the development of building technology, ultra-low energy consumption buildings are increasingly respected by the state, local governments, enterprises and people. Ultra-low energy buildings (passive houses) focus on low energy consumption, high airtightness and comfortable environment, so it is very important to select doors and windows with high airtightness, strict installation methods and supporting installation auxiliary materials. [0003] Waterproof and vapor permeable film is a polymer film product with both waterproof and vapor permeable functions. It is a new energy-saving material that is healthy and environmentally friendly. It can quickly discharge internal water vapor while strengthening air and w...

AI Technical Summary

Problems solved by technology

At present, most of the waterproof and breathable membranes on the market are imported products, which are mainly divided into two categories: the first category is self-adhesive, which needs to be used in conjunction with other adhesives when installing doors and windows. The construction efficiency is low, the labor cost is high, and there are often delays. The situation of the construction period

The second type is self-adhesive, that is, waterproof and vapor-permeable film tape, which is a pressure-sensitive self-adhesive self-adhesive on a waterproof and vapor-permeable film. The humidity is very poor, and the moisture permeability after being combined with the waterproof and vapor-permeable membrane is not good, the moisture in the wall cannot be discharged, and it is easy to mold and deteriorate

The inner structure of the second type of product is non-woven fabric superimposed film superimposed self-adhesive, self-adhesive is coated on the film, during the construction process, it is easy to cause the problem of waterproof failure caused by sharp objects on the wall piercing the film

At the same time, the transverse tensile strength of the above two types of products is poor

They are very easy to be stretched during installation and use, and they are not obvious in appearance. This characteristic can easily lead to unstable waterproof and moisture permeability of the material itself

[0004] The traditional waterproof and breathable membranes used on walls or roofs cannot be used for the installation of doors and windows. The main reason is that traditional materials have poor tensile properties, low peel strength, and non-plastering properties.

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