Hot-melt pressure-sensitive adhesive, preparation method of hot-melt pressure-sensitive adhesive and waterproof roll

Abstract

The invention provides a hot-melt pressure-sensitive adhesive and a preparation method of the hot-melt pressure-sensitive adhesive. The hot-melt pressure-sensitive adhesive belongs to the technical field of waterproof rolls. The problem that the waterproof roll is unsuitable to be used in winter or tundra because the conventional pre-paving anti-adhesion construction only can be performed in a climatic environment of over 4 DEG C below zero can be solved. The hot-melt pressure-sensitive adhesive disclosed by the invention is prepared from raw materials comprising an elastomer, polyisobutene, a first C5 petroleum resin and a second C5 petroleum resin, wherein the first C5 petroleum resin refers to a solid alicyclic hydrocarbon type hydrogenated petroleum resin and has the softening point of 80-127 DEG C; and the second C5 petroleum resin refers to a liquid petroleum resin and has the softening point of less than or equal to 15 DEG C. According to the hot-melt pressure-sensitive adhesive disclosed by the invention, a high density polyethylene self-adhered film waterproof roll can be firmly overlapped under the condition of 10 DEG C below zero, and the hot-melt pressure-sensitive adhesive can be applied to sealing tapes, double sided tapes and the like.

Description

technical field [0001] The invention belongs to the technical field of waterproof coiled material, and in particular relates to a hot-melt pressure-sensitive adhesive, a preparation method thereof, and a waterproof coiled material. Background technique [0002] The traditional overlapping method of waterproofing membranes for various underground civil engineering projects is to paste or empty the membranes on the base layer, so that there is a bonding gap between the waterproofing material layer and the structural concrete, or it is not permanently firm and fully bonded. . Based on the above-mentioned construction method, when the base layer is subsidence or deformed, the waterproof layer will be destroyed, and the static pressure water in the ground will flow everywhere between the waterproof layer and the structural concrete, making it difficult to find the exact location when leakage occurs. At the point of leakage, maintenance becomes very difficult, and even in extreme...

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Problems solved by technology

[0006] The present invention aims at the problem that the existing pre-paved anti-adhesive construction can only be carried out in the climate environment above -4°C, so that the waterproof coiled material is not suitable for use in winter or in the permafrost zone, and provides a method that can be firmly lapped at -10°C Hot-melt pressure-sensitive adhesive for high-density polyethylene self-adhesive film waterproofing membrane

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