CN-121105488-B - Three-base double-channel prefabricated occlusion lap joint waterproof coiled material with fastening tape

CN121105488BCN 121105488 BCN121105488 BCN 121105488BCN-121105488-B

Abstract

The invention relates to the technical field of waterproof coiled materials, and provides a three-substrate double-channel prefabricated occlusion lap-joint waterproof coiled material with a sticking buckle tape, which sequentially comprises an anti-adhesive layer, a first permeation reaction adhesive layer, a first polymer film base layer, a second permeation reaction adhesive layer, a second polymer film base layer, a third permeation reaction adhesive layer, a third polymer film base layer, a fourth permeation reaction adhesive layer, a matt surface loop wire layer and a hook surface layer from bottom to top, wherein sizing materials of the first permeation reaction adhesive layer, the second permeation reaction adhesive layer, the third permeation reaction adhesive layer and the fourth permeation reaction adhesive layer respectively independently comprise asphalt, a softening agent, SBS, SIS, a tackifier, rubber powder and a filler, and the filler consists of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass microspheres. Through the technical scheme, the problems of poor fixation, lower peeling strength and heavier quality of the waterproof coiled material in the related technology are solved.

Inventors

PENG SONGTAO
TIAN JIBIN
LI JIANZHI
XU FUXIN
LI JIANFANG
XIE YANJIAO

Assignees

河北宇阳泽丽防水材料有限公司

Dates

Publication Date: 20260512
Application Date: 20250911

Claims (6)

1. The three-substrate double-channel prefabricated occlusion lap joint waterproof coiled material with the sticking buckle tape is characterized by sequentially comprising, from bottom to top, an anti-adhesive layer, a first permeation reaction adhesive layer, a first high polymer film base layer, a second permeation reaction adhesive layer, a second high polymer film base layer, a third permeation reaction adhesive layer, a third high polymer film base layer, a fourth permeation reaction adhesive layer, a terry yarn layer and a hook surface layer, wherein the first permeation reaction adhesive layer, the second permeation reaction adhesive layer, the third permeation reaction adhesive layer and the fourth permeation reaction adhesive layer are respectively and independently composed of, by weight, 30-50 parts of asphalt, 10-25 parts of softener, 2-10 parts of SBS, 2-10 parts of SIS, 2-5 parts of tackifier, 5-15 parts of rubber powder and 15-30 parts of filler, and the filler is composed of heavy calcium carbonate, magnesium stearate modified activated calcium carbonate and hollow glass beads; the particle size of the heavy calcium carbonate is 400-800 meshes, the hollow glass beads are soda lime borosilicate, and the average particle size is 30-60 mu m; The first penetration reaction adhesive layer and the filling agent of the second penetration reaction adhesive layer have the same composition, and the third penetration reaction adhesive layer and the fourth penetration reaction adhesive layer have the same composition; The filler of the first penetration reaction adhesive layer and the second penetration reaction adhesive layer consists of (1.1-1.2) heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass beads with the mass ratio of (1.1-1.2); The filler of the third penetration reaction adhesive layer and the fourth penetration reaction adhesive layer consists of (0.9-1) 0.25 of heavy calcium carbonate, 0.9-1 of magnesium stearate modified active calcium carbonate and hollow glass beads in a mass ratio.
2. The three-substrate double-channel prefabricated occlusion lapping waterproof coiled material with the fastening tape is characterized in that a first isolating film with the thickness of 6-10 cm is arranged on one side of the pile face coil wire layer and is connected with the pile face coil wire layer to form an upper lap edge, the widths of the hook face layer and the pile face coil wire layer are consistent, lap joints are arranged at the positions of the second permeation reaction adhesive layer and the third permeation reaction adhesive layer, one end of the second high polymer film base layer stretches into the lap joints, a second isolating film with the thickness of 6-10 cm is arranged on the corresponding side of the anti-adhesion layer and the pile face coil wire layer and is connected with the anti-adhesion layer to form a lower lap edge, and a third isolating film and a fourth isolating film are arranged on the inner wall of the lap joints.
3. The three-matrix double-channel prefabricated occlusion lap waterproof coiled material with the fastening tape, which is disclosed by claim 1, is characterized in that the preparation method of the filler comprises the following steps of mixing magnesium stearate modified activated calcium carbonate and hollow glass beads to obtain a composite filler, adding the composite filler into heavy calcium carbonate, and mixing to obtain the filler.
4. The three-substrate double-channel prefabricated snap lap waterproof coiled material with the fastening tape according to claim 1, wherein the softening agent comprises one or more of wire reducing oil, naphthenic oil, aromatic hydrocarbon oil and paraffin oil; The tackifier comprises one or more of hydrogenated petroleum resin, hydrogenated terpene resin and rosin resin.
5. The preparation method of the three-substrate double-channel prefabricated snap lap waterproof coiled material with the fastening tape, which is disclosed in claim 1, is characterized in that the preparation method of the sizing materials of the first permeation reaction adhesive layer, the second permeation reaction adhesive layer, the third permeation reaction adhesive layer and the fourth permeation reaction adhesive layer comprises the following steps of mixing asphalt with the softening agent, heating to 150-170 ℃, adding the SBS and the SIS for grinding, heating to 185-200 ℃, adding the rubber powder and the tackifier, adding the filler after melting completely, cooling to 150-175 ℃, and mixing to obtain the sizing material.
6. The three-substrate double-channel prefabricated snap lap waterproof roll with the fastening tape according to claim 1, wherein the glue stock of the fourth penetration reaction glue layer further comprises a chemical root inhibitor.

Description

Three-base double-channel prefabricated occlusion lap joint waterproof coiled material with fastening tape Technical Field The invention relates to the technical field of waterproof coiled materials, in particular to a three-substrate double-channel prefabricated occlusion lap joint waterproof coiled material with a fastening tape. Background In the current waterproof construction of tunnel engineering, waterproof boards are mostly adopted for construction. The flashing is typically secured prior to hot air welding at the lap joint. Problems arise in this process. Firstly, the waterproof board, the primary lining and the secondary lining cannot be bonded in a reactive mode, for example, a water seepage channel is easily formed between the layers after the primary lining or the secondary lining is cracked, secondly, when the waterproof board is welded through hot air, the construction speed in a tunnel is low, and the welding quality of a seam welder in an annular space is difficult to ensure effectively. The prefabricated occlusion lap joint waterproof coiled material can well solve the problems, the permeation reaction adhesive layer can form skin type bonding with concrete to block a water channeling passage, the occlusion structure can enhance the bonding between materials, the shearing and water impermeability of a lap joint are greatly enhanced, the double-channel prefabrication can increase the composite strength of the materials and improve the site construction efficiency, but how to fix the coiled material, enhance the peeling strength of the coiled material and lighten the total weight of the materials is the problem to be studied in a tunnel. If the coiled material is not well fixed, the coiled material is easy to generate hollowness, shift and even fall off, a continuous and complete waterproof layer cannot be formed when the coiled material is separated from a base layer, a gap formed between the fixed coiled material and the base layer can become a passage for underground water channeling, the durability of a tunnel structure is reduced, if the peeling strength of the coiled material is lower, interlayer separation and stripping of the coiled material and the base layer can occur under the action of stress, the waterproof layer loses integrity, at the moment, water can quickly channeling along a stripping gap, a local weak point is broken through to form large-area seepage, so that the waterproof is thoroughly ineffective, the tunnel structure is possibly unstable when serious, and if the coiled material is heavier, more manpower or mechanical power is consumed for carrying and paving, the additional constant load of the tunnel structure can be increased, and the pressure is caused to the bearing capacity of the tunnel structure. Therefore, how to enhance the fixation, peel strength and quality of the web is a problem that needs to be solved. Disclosure of Invention The invention provides a three-substrate double-channel prefabricated occlusion lap joint waterproof roll with a sticking buckle tape, which solves the problems of poor fixation, lower peeling strength and heavier quality of the waterproof roll in the related art. The technical scheme is that the three-substrate double-channel prefabricated occlusion lap-joint waterproof coiled material with the sticking tape is characterized by sequentially comprising, from bottom to top, an anti-adhesive layer, a first permeation reaction adhesive layer, a first polymer film base layer, a second permeation reaction adhesive layer, a second polymer film base layer, a third permeation reaction adhesive layer, a third polymer film base layer, a fourth permeation reaction adhesive layer, a matt surface loop silk layer and a hook surface layer, wherein sizing materials of the first permeation reaction adhesive layer, the second permeation reaction adhesive layer, the third permeation reaction adhesive layer and the fourth permeation reaction adhesive layer independently comprise the following raw materials in parts by weight, 30-50 parts of asphalt, 10-25 parts of softening agent, 2-10 parts of SBS, 2-10 parts of SIS, 2-5 parts of tackifier, 5-15 parts of rubber powder and 15-30 parts of filler, and the filler consists of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass microspheres. The filler consists of heavy calcium carbonate, magnesium stearate modified active calcium carbonate and hollow glass beads, the active calcium carbonate can increase the volume of a product and has good affinity with resin, the active calcium carbonate can be uniformly dispersed, colloid is soft and fine, the dimensional stability can be improved, the cohesiveness of a permeation reaction adhesive layer is improved, the hollow glass beads have the advantages of light weight, low heat conduction, high strength, good chemical stability and the like, the hollow glass beads have oleophilic and hydrophobic properties, are easy to