Low temperature resistant self-adhesive rubber bitumen waterproof membrane

Abstract

The invention discloses a low-temperature resistant self-adhesive rubber asphalt waterproof coiled material, which is prepared from following raw materials in parts by weight: 48 parts of asphalt, 6 parts of softening agent, 12 parts of SBS, 9 parts of SBR, 21 parts of filling material, 1 part of ACLyn293A, and 3 parts of active polyisobutylene. Compared to the self-adhesive polymer-modified asphalt polyester waterproof coiled materials, the low-temperature resistant self-adhesive rubber asphalt waterproof coiled material is a tire base-free waterproof material, has a good low temperature resistant performance, a strong initial adhesive force, and a prominently-improved peeling strength between the coiled material and the base material, greatly improves the reliability of the self-adhesive and waterproof effect, reduces the construction cost, shortens the construction time, and has an especially prominent application effect in the open cut portion of the tunnel construction, railway construction, and underground construction. The produced coiled material meets the GB23441-2009 standard, and obtains largely-improved properties of low-temperature flexibility, tensile strength, tear strength, and anti-aging strength at the same time.

Description

technical field [0001] The invention relates to a waterproof coiled material, in particular to a low-temperature-resistant self-adhesive rubber asphalt waterproof coiled material, which belongs to the field of waterproof coiled materials. Background technique [0002] With the development of the economy, the society's demand for waterproof membranes is increasing, and at the same time, the requirements for the comprehensive performance of the products are also getting higher and higher. The waterproof function of the polymer membrane can only be achieved through paving and bonding on the construction site. Not only does the product have to meet the standard internal quality, but the appearance quality of the product also directly affects the construction application of the membrane. [0003] The traditional production process controls the flatness of the polymer coil, firstly through the adjustment of the opening of the die lip and the temperature of the die to extrude a fil...

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Problems solved by technology

[0003] The traditional production process controls the flatness of the polymer coil, firstly through the adjustment of the opening of the die lip and the temperature of the die to extrude a film with uniform thickness, and through the horizontal three-roll calendering and compound machine to achieve, although after the mold The adjustment of the die lip and mold temperature can make the thickness of the extruded film relatively uniform, but when the film passes through the horizontal three-roll calendering, the film is subjected to the normal force of the three rolls during the compounding process, and the interference of the external unbalanced temperature will cause The forming sheet produces a large stress. The pressure of the three horizontal rollers comes from the force of the spring, which cannot be fixed and controlled. The extrusion force on the diaphragm is not balanced enough, which can easily cause unevenness such as bulging and warping of the forming sheet. Phenomenon, the uneven coils can only be cut out during the construction process to ensure the normal progress of the construction, and the cut part should be reinforced with an additional layer, which not only increases the difficulty of construction, but also has serious problems. Potential quality hazards affect the construction progress

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