Self-bonding layer strip material with environmental protection and wide temperature change

Abstract

The invention relates to a self-bonding layer strip material with environmental protection and wide temperature change. A first adhesive layer and a second adhesive layer are respectively coated on two surfaces of a basic layer; the other surface of the first adhesive layer or the second adhesive layer is provided with an isolating membrane; and the isolating membrane is a base membrane or a surface membrane and a side membrane, wherein the thicknesses of the first adhesive layer and the second adhesive layer are respectively 0.02-0.3mm. The self-bonding layer strip material has the advantages of aquosity, environmental protection, no toxicity or flavour, high bonding strength, high water resistance and weather resistance, stickiness being free from the influence of temperature change andcapability of long-time storage and use, can be widely applied to common waterproof coiled materials of rubber, macromolecule plastics, modified pitch, and the like and does not need other materials to be added into raw materials or heating reaction; the self-bonding type waterproof coiled material with the advantages of excellent performance and convenient construction can be produced as long asless reformation is performed on the production line of the traditional various common waterproof coiled materials; and the self-bonding layer strip material can be also applied to other objects and materials which are in different specifications and need self bonding.

Description

technical field [0001] The invention relates to an adhesive layer material used on a self-adhesive waterproof coiled material, in particular to a water-based environment-friendly belt-shaped adhesive structure layer suitable for compounding on the surface of a self-adhesive waterproof coiled material. Background technique [0002] In recent years, the waterproof membranes produced by most building waterproof material factories in my country mainly include: 1. Asphalt or modified asphalt waterproof membranes; 2. Rubber waterproof membranes; 3. Polymer plastic waterproof membranes. The waterproof materials used in large areas in construction projects are mainly waterproof membrane products. In the usual on-site construction, rubber waterproof membranes and polymer plastic waterproof membranes are mainly bonded to the base layer with an external adhesive, and asphalt or modified asphalt waterproof membranes are basically made of body self-adhesive, called It is a self-adhesive...

AI Technical Summary

Problems solved by technology

During production and application construction, it will cause serious harm to the health of workers and serious pollution to the social environment;

[0004] 2. Since temperature has a great influence on the viscosity of asphalt or modified asphalt, even asphalt or modified asphalt that has been softened and viscosified also has a situation that temperature is directly proportional to viscosity. When the temperature rises, the asphalt can be Or the viscosity of modified asphalt increases rapidly, and when the temperature drops, the viscosity of asphalt or modified asphalt can decrease rapidly, making it difficult to bond with the substrate

For this reason, the manufacturer can only adjust the formula according to the change of the four seasons or the time period of different daily temperatures (see Table 1 below), and the production volume can only be arranged according to the customer's order, and the annual production target cannot be formulated in a planned way. The development of the factory is subject to certain restrictions;

[0005] 2. When some reasons are encountered in the process of sales and construction application, and the products that have been produced at a certain period cannot be constructed normally according to the period, they will not be able to be used due to the decrease in viscosity quality, resulting in a lot of waste;

[0006] 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 softener added to the asphalt will escape quickly, making the asphalt or modified asphalt The layer is hardened and cracked, and the bonding force between the membrane and the substrate is reduced and disengaged, causing leakage and affecting the waterproof quality and service life of the building.

[0007] 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) fully meets the standard requirements, but in practical applications, users often complain that the bond strength is not high

Therefore, some users require exchange or return or demand compensation for losses, which will have a negative impact on the reputation of the company and products, and will also cause a lot of waste.

[0009] 6. When the waterproof membrane is laid, it only needs the surface layer of one or two sides to be self-adhesive to be bonded to the base layer. It is not necessary for the entire asphalt waterproof layer to be self-adhesive. Such a self-adhesive waterproof membrane The overall self-adhesive body not only wastes materials, increases product material costs and production costs, but also increases labor intensity for workers in production and construction processes

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