CN212174867U

CN212174867U - Polyurethane waterproofing membrane

Info

Publication number: CN212174867U
Application number: CN202020303173.1U
Authority: CN
Inventors: 黄龙香
Original assignee: Jingmen Keshun New Material Co ltd
Current assignee: Jingmen Keshun New Material Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-12-18
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to a polyurethane waterproofing membrane, including the facing sand layer, the polyurethane coating, powerful alternately membrane, from viscose layer and aluminizing isolation film layer from top to bottom set gradually, this coiled material does not have harsh requirement to the humiture when being under construction, and the construction speed is fast, it is good with the basic unit bonding, and fashioned thickness is even, easy control, can not appear sagging yet to the facade construction, the condition such as slide, it is high to have intensity, the percentage of elongation is big, water resistance is good, green, paint closely knit, and characteristics such as construction is simple and convenient, adaptability to basic unit deformation is strong, be applicable to various underground building, a kitchen, a toilet, the waterproof engineering of bathroom and bathroom.

Description

Polyurethane waterproofing membrane

Technical Field

The utility model relates to a waterproofing membrane field, more specifically relates to a polyurethane waterproofing membrane.

Background

The waterproof coiled material is mainly used for building walls, building basements, bottom plates, roofs, tunnels, highways, refuse landfills and the like, can be curled into a roll-shaped flexible building material product with the function of resisting external rainwater and underground water permeation, is used as a leakage-free connection between an engineering foundation and a building, is a waterproof first barrier of the whole engineering, and plays a vital role in the whole engineering.

The polyurethane waterproof paint is a kind of high molecular waterproof paint using polyurethane resin as main film-forming substance, which is prepared by mixing the mixture of isocyanate-based curing agent and other auxiliary agent according to a certain proportion, and the polyurethane waterproof paint is free of additives such as tar and asphalt, and a layer of firm and tough seamless integral waterproof film is formed on the surface of a base layer after curing. The paint has the characteristics of high strength, high elongation, good water resistance, environmental protection, compact film coating and the like, has strong adaptability to deformation of a base layer, and is suitable for waterproof engineering of various underground buildings, kitchens, toilets, bathrooms and toilets.

However, the polyurethane waterproof coating is inconvenient in waterproof construction, and the double-component polyurethane coating needs to be prepared on site before use, and the performance is reduced due to uneven preparation; the polyurethane waterproof coating is easily influenced by the temperature and the humidity of a construction site in the construction process, for example, when the temperature is too high, the surface is dried too fast, and more air bubbles and air holes are generated; when the temperature is lower, the surface drying is slow, the setting is not dry, and the strength is not high; the substrate has high humidity, poor bonding with the substrate is easy to occur, and abnormal peeling is generated. The polyurethane waterproof coating has higher construction requirement, the construction is difficult to realize uniform thickness, the thickness is easy to be uneven, and sagging is easy to occur during the construction of a vertical wall, so that the construction effect and the waterproof effect are poor; the polyurethane waterproof coating has the advantages of long construction period, large smell and high environmental protection pressure in the construction process, and when the construction area is large, the construction period can be longer and the construction effect of the coiled material is not as good as that of the coiled material. Moreover, when the polyurethane waterproof coating is used for construction, some constructors can add a solvent at will, and the waterproof effect is seriously influenced.

The traditional polyurethane waterproof coating is difficult to expose, because under the irradiation of ultraviolet rays, the chain breakage of a polyurethane molecular chain can be accelerated, and the exposure can accelerate the overflow of a plasticizer in a polyurethane coating, so that the performances of the polyurethane waterproof coating, such as the elongation at break, the tensile strength and the like, are reduced.

The utility model discloses a chinese utility model patent application CN209854049U discloses a waterproofing membrane, including child base, surface course, self-adhesion layer and isolation layer, the top of child base bonds with the bottom of surface course, bond from the top of adhesive linkage and the bottom of child base, the top of isolation layer bonds with the bottom of self-adhesion layer, bond through the polyurethane adhesive between child base, surface course, self-adhesion layer and the isolation layer, the child base includes fire-resistant layer, ageing resistance layer, corrosion-resistant layer, waterproof layer and enhancement layer from top to bottom sets gradually, the isolation layer is the antiseized barrier paper of silicone oil, the enhancement layer is glass fiber, and this waterproofing membrane can bond with the building base through the bonding ability that possesses from the adhesive linkage to having reached and having replaced traditional heating to roast the purpose of melting and laying the construction mode, only need tear the isolation layer during the operation can. However, the waterproof roll needs a plurality of materials to be manufactured, the process is complex, the isolation layer in the waterproof roll is silicone oil anti-sticking isolation paper, the ultraviolet resistance is poor, and the waterproof roll is not easy to tear.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at overcoming at least one kind defect among the above-mentioned prior art or not enough, provide a polyurethane waterproofing membrane, this coiled material does not have the harsh requirement to the humiture when being under construction, bonds well with the basic unit, and fashioned thickness is even, easily controls for the facade construction can not appear sagging yet, the condition such as slide, only need tear during the construction aluminize barrier film can, aluminize barrier film easily tears and anti ultraviolet performance is strong.

The utility model provides a polyurethane waterproofing membrane, from top to bottom set gradually including facing sand bed, polyurethane coating, powerful alternately membrane, from viscose layer and aluminize isolation rete. The utility model discloses simple structure uses the polyurethane coating as the waterproof layer, and water-proof effects is good. Through increasing the polyurethane coating on powerful cross membrane, increase the sand layer of covering again on the polyurethane coating, the sand layer of covering is different with the dull polish layer in the waterproofing membrane commonly used at present, the utility model discloses what point is to use special treatment sand to cover waterproofing membrane's table sign indicating, the sand layer of covering that special treatment sand formed can produce chemical reaction, physical reaction with the concrete, can fuse into an organic whole with major structure finally; the frosted layer is subjected to surface treatment, namely roughening treatment, aiming at the high polymer, so that the degree of surface unevenness is increased; then increase one deck self-adhesion glue film at the another side of powerful crossing membrane again, cover the one deck isolation rete of aluminizing on the self-adhesion glue film again and form the utility model discloses a waterproofing membrane, when the construction, only need to tear the isolation rete and can use, simple and convenient, the operation of being convenient for, and good with the basic unit bonding, easily control also can not appear the condition such as sagging, sliding when the facade construction.

Further, the thickness of the polyurethane coating is 1.20mm-1.50 mm. By the waterproofing membrane that high temperature resistant low temperature performance is excellent, elongation at break is big, tensile strength is high, tear strength is high, ozone resistance can be good, weather fastness good, chemical resistance's polyurethane waterproofing membrane is made, thickness is even, easily control, and uses the utility model discloses a when the coiled material is under construction, can carry out cold construction, no open flame construction also does not have volatile smell and volatilizees, the work progress peculiar smell does not have the potential safety hazard and also does not have the environmental protection pressure.

Further, the strong cross film is a strong cross laminated polyethylene film.

Further, the thickness of the strong cross membrane is 0.08mm-0.12 mm. The strong crossed laminated polyethylene film formed by the 45-degree crossed composite hot pressing of the high-density polyethylene film is used as the strong crossed film, so that the polyurethane waterproof roll has the advantages of excellent dimensional stability, good bidirectional tearing resistance and high ultraviolet resistance, and simultaneously has high strength, high elongation and unique puncture resistance.

Furthermore, the width of the polyurethane coating is smaller than that of the strong crossed film, and lap edges are reserved on two sides of the strong crossed film. The width of the polyurethane coating is smaller than that of the strong crossed film, overlapping edges are reserved on two sides of the strong crossed film, and therefore adjacent waterproof coiled materials can be connected in a tower conveniently.

Further, the facing sand layer is a reaction sand layer and/or a mullite sand layer and/or a shale sheet layer.

Further, the mesh number of the reaction sand layer and/or the mullite sand of the mullite sand layer and/or the shale slices of the shale slice layer is 30-100 meshes. The reaction sand layer and/or the mullite sand layer and/or the shale sheet layer have the function of reflecting ultraviolet rays, and the reaction sand layer and/or the mullite sand layer and/or the shale sheet layer are easy to mesh with concrete for reaction, so that the waterproof roll is more tightly combined with the concrete, has a better waterproof effect, and can prevent water channeling.

Further, the self-adhesive layer is hot-melt pressure-sensitive adhesive and/or butyl rubber. The hot-melt pressure-sensitive adhesive is a high-cohesion adhesive, is an adhesive block at normal temperature, is heated to form adhesive in a flowing state, is coated on the surface of a base material by a coating machine, has strong cohesion, and has better ultraviolet resistance, high-temperature aging resistance and the like; the butyl rubber has the characteristics of good air tightness, water tightness, chemical stability, thermal stability, good aging resistance, chemical resistance, strong adhesion performance and the like.

Further, the thickness of the self-adhesive layer is 0.30mm-0.40 mm. The conditions of loose adhesion and insufficient peeling strength are easy to occur when the glue layer of the self-adhesive layer is thin, and the material waste is caused when the glue layer is thick; the thickness of the self-adhesive layer is 0.30mm-0.40mm, such as 0.30mm, 0.35mm or 0.40mm, the thickness is moderate and uniform, the self-adhesive layer is well adhered to the base surface, and the self-adhesive layer is not easy to peel.

Furthermore, the aluminized isolation film layer is a PET aluminized isolation film layer, and the thickness of the aluminized isolation film layer is 0.03mm-0.06 mm. The PET barrier film of aluminizing has fine effect to separation ozone, steam and ultraviolet ray etc. can carry out fine coverage protection to the self-adhesive glue film, and easily tears the membrane, and is very convenient to the summer construction, uses when waterproofing membrane is under construction, only need tear the barrier film and can use.

Compared with the prior art, the beneficial effects of the utility model are that:

the polyurethane coating is used as a waterproof layer, so that the waterproof coiled material has the advantages of excellent high and low temperature resistance, large elongation at break, high tensile strength, high tear strength, good ozone resistance, good weather resistance, chemical corrosion resistance and the like, and can be subjected to cold construction, open fire construction and volatile gas volatilization during construction, and the construction process has no peculiar smell, potential safety hazard and environmental protection pressure; the waterproofing membrane in this scheme does not have strict requirement to the humiture when the construction, and the construction speed is fast, and is good with the basic unit bonding, and the fashioned thickness of coiled material is even, easily controls for the circumstances such as sagging, slide can not appear when the facade construction.

Drawings

Fig. 1 is the structural schematic diagram of the waterproof roll of the present invention.

The figure includes: a facing sand layer-1, a polyurethane coating-2, a strong cross film-3, a self-adhesive layer-4 and an aluminized isolation film layer-5.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

Fig. 1 is a schematic structural diagram of a polyurethane waterproof roll in this embodiment, where the polyurethane waterproof roll includes a facing sand layer 1, a polyurethane coating layer 2, a strong cross membrane 3, a self-adhesive layer 4, and an aluminum-plated isolation membrane layer 5, which are sequentially disposed from top to bottom. The thickness of the polyurethane coating 2 is 1.30mm, the breadth is 1400mm, as the waterproof layer of the waterproof roll material of the embodiment, the polyurethane coating 2 is bonded with a strong cross laminated polyethylene film formed by using a high-density polyethylene film for 45-degree cross composite hot pressing, the breadth of the polyurethane coating 2 is slightly smaller than the breadth of the strong cross laminated polyethylene film by 50mm, the width of the remaining edges at two sides is 25mm, as the tower joint edge of the waterproof roll material, the polyurethane coating 2 is covered with a covering sand layer 1, the covering sand layer 1 is specifically a Molai sand layer, wherein the mesh number of the mullite sand in the mullite sand layer is 50 meshes, the other surface of the strong cross film 3 is adhered with a self-adhesive layer 4, the self-adhesive layer 4 is a hot-melt pressure-sensitive adhesive layer, the thickness of the self-adhesive layer is 0.30mm, the PET aluminized isolation film layer 5 is used for covering and protecting the hot-melt pressure-sensitive adhesive layer, and the PET aluminized isolation film layer 5 of the waterproof coiled material can be torn off for use during construction. The waterproof coiled material is made of polyurethane waterproof paint with excellent high temperature resistance and low temperature resistance, large elongation at break, high tensile strength, high tear strength, good ozone resistance, good weather resistance and chemical corrosion resistance, is uniform in thickness and easy to control, and can be subjected to cold construction when being constructed by using the waterproof coiled material, no open fire construction and no volatile odor volatilization, no odor, no potential safety hazard and no environmental protection pressure are generated in the construction process; in addition, the covering sand layer is a mullite sand layer, so that mullite sand is good in acid and alkali resistance and good in bonding property with concrete, can further react with hydration products of the concrete and is integrated with the concrete, and the waterproof coiled material in the embodiment can effectively avoid water channeling of the structure; the self-adhesive layer is a hot-melt pressure-sensitive adhesive layer, has strong cohesive force and has better ultraviolet resistance and high-temperature aging resistance; the PET aluminized barrier film has good effect on blocking ozone, water vapor, ultraviolet rays and the like, can carry out good coverage protection on the self-adhesive layer, is used when the waterproof roll is constructed, the waterproof roll can be used only by tearing the barrier film, has the characteristics of high strength, large elongation, good water resistance, environmental protection, compact painting, simple and convenient construction and the like, has strong adaptability to deformation of a base layer, and is suitable for waterproof engineering of various underground buildings, kitchens, toilets, bathrooms and toilets.

Example 2

This embodiment provides a polyurethane waterproofing membrane, polyurethane waterproofing membrane includes that clad can sand layer 1, polyurethane coating 2, powerful alternately membrane 3, self-

adhesive layer

4 and 5 isolating film layers of aluminizing from top to bottom set gradually. The thickness of the polyurethane coating 2 is 1.40mm, the breadth is 1800mm, as the waterproof layer of the waterproof roll material of the embodiment, the polyurethane coating 2 is bonded with a strong cross laminated polyethylene film formed by using a high-density polyethylene film for 45-degree cross composite hot pressing, the breadth of the polyurethane coating 2 is slightly smaller than the breadth of the strong cross laminated polyethylene film by 50mm, the width of the remaining edges at two sides is 25mm, as the tower joint edge of the waterproof roll material, the polyurethane coating 2 is covered with a facing sand layer 1, the facing sand layer 1 is specifically a reaction sand layer, wherein the mesh number of the reaction sand in the reaction sand layer is 80 meshes, the other surface of the strong cross membrane 3 is adhered with a self-adhesive layer 4, the self-adhesive layer 4 is a butyl adhesive layer, the thickness of the self-adhesive layer is 0.40mm, the hot-melt pressure-sensitive adhesive layer is covered and protected by the PET aluminized isolation film layer 5, and the PET aluminized isolation film layer 5 of the waterproof coiled material can be torn off for use during construction. The waterproof coiled material is made of polyurethane waterproof paint with excellent high temperature resistance and low temperature resistance, large elongation at break, high tensile strength, high tear strength, good ozone resistance, good weather resistance and chemical corrosion resistance, is uniform in thickness and easy to control, and can be subjected to cold construction when being constructed by using the waterproof coiled material, no open fire construction and no volatile odor volatilization, no odor, no potential safety hazard and no environmental protection pressure are generated in the construction process; in addition, the facing sand layer is a reaction sand layer, the reaction sand has good acid and alkali resistance and good bonding property with concrete, and can further react with hydration products of the concrete and be integrated with the concrete, so that the waterproof coiled material in the embodiment can effectively avoid water channeling of the structure; the self-adhesive layer is a butyl adhesive layer, and has the characteristics of good air tightness, water tightness, chemical stability and thermal stability, good aging resistance, chemical resistance, strong bonding performance and the like; the thickness of PET barrier film of aluminizing is 0.04mm, has fine effect to separation ozone, steam and ultraviolet ray etc. can carry out fine coverage protection to the self-adhesive glue layer, uses when waterproofing membrane is under construction, only need tear the barrier film and can use, this waterproofing membrane has intensity height, elongation is big, water resistance is good, green, paints characteristics such as closely knit and construction are simple and convenient, and adaptability to the basic unit deformation is strong, is applicable to the water-proof engineering of various underground construction, kitchen, lavatory, bathroom and bathroom.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The polyurethane waterproof coiled material is characterized by comprising a facing sand layer, a polyurethane coating, a strong cross film, a self-adhesive layer and an aluminized isolation film layer which are sequentially arranged from top to bottom.

2. The roll of polyurethane waterproofing according to claim 1, wherein the thickness of the polyurethane coating is 1.20mm to 1.50 mm.

3. The roll of polyurethane waterproofing membrane of claim 1 wherein said strong cross membrane is a strong cross laminated polyethylene membrane.

4. A roll of polyurethane waterproofing according to any one of claims 1 or 3, wherein the thickness of said strong cross membrane is 0.08mm to 0.12 mm.

5. The polyurethane waterproofing membrane of claim 1, wherein the width of the polyurethane coating is smaller than the width of the strong crossed membrane, and tower connecting edges are reserved on two sides of the strong crossed membrane.

6. The polyurethane waterproofing membrane according to claim 1, wherein the facing sand layer is a reaction sand layer and/or a mullite sand layer and/or a shale sheet layer.

7. The polyurethane waterproofing membrane of claim 6, wherein the mesh number of the reaction sand layer and/or the mullite sand of the mullite sand layer and/or the shale sheet of the shale sheet layer is 30-100 mesh.

8. The roll of polyurethane waterproofing according to claim 1, wherein the thickness of the self-adhesive layer is 0.30mm to 0.40 mm.

9. The polyurethane waterproof roll according to claim 1, wherein the aluminized barrier film layer is a PET aluminized barrier film layer, and the thickness of the PET aluminized barrier film layer is 0.03mm to 0.06 mm.