Glass fiber internally-reinforced macromolecular cross laminated film and self-adhesive waterproof coiled material

Abstract

The utility model relates to a glass fiber internally-reinforced polymer cross laminated film and a self-adhesive waterproof coiled material. The glass fiber internally-reinforced polymer cross laminated film comprises a cross laminated film surface layer, a glass fiber non-woven fabric layer and a cross laminated film bottom layer which are sequentially laminated. The glass fiber non-woven fabric layer is arranged between the cross laminated film surface layer and the cross laminated film bottom layer, so that not only can the heat resistance of the traditional cross laminated film be improved, but also the strength and the puncture resistance can be improved. The glass fiber non-woven fabric internally-reinforced polymer cross laminated film is used for preparing a self-adhesive waterproof coiled material, so that the thermal dimensional stability of the waterproof coiled material can be effectively improved, the problems of shrinkage, swelling, separation of overlapping edges and the like of the coiled material in an external alternate cooling and heating or sunlight environment are avoided, and the flatness and appearance quality of a product can be remarkably improved; and the reliability of the overlapping edge of the waterproof roll is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof materials, in particular to a glass fiber inner reinforced polymer cross-laminated film and a self-adhesive waterproof coiled material. Background Art

[0002] Polyethylene cross-laminated film is a high-strength multi-layer composite film made of polyethylene resin mixture as the main material, with the addition of masterbatch, antioxidants, stabilizers and other additives, through melt blending, blow molding, stretching, spiral cutting, cross-lamination and other steps. Because its cross-laminated structure is different from ordinary single-layer film or multi-layer film, it has better thermal stability, dimensional stability, bidirectional tear resistance and longitudinal and transverse uniformity than traditional films. Polyethylene cross-laminated film is widely used in the field of domestic waterproofing membranes as a reinforcing material for self-adhesive or wet-laid membranes.

[0003] At present, the polyethylene cross-laminated films provided in the domestic market mainly have the disadvantages of poor heat resistance, insufficient strength and puncture resistance, etc. The above defects of polyethylene cross-laminated films can easily lead to shrinkage, bulging, detachment of overlapping edges of waterproof membranes under alternating hot and cold external conditions or in sunlight, which affects the appearance quality of the waterproof project and also causes the overlapping edges to be loose, affecting the sealing and reliability of the waterproof system. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a glass fiber inner reinforced polymer cross-laminated film with high heat resistance, high strength and excellent puncture resistance and a self-adhesive waterproof coiled material containing the glass fiber inner reinforced polymer cross-laminated film.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A glass fiber internally reinforced polymer cross-laminated film comprises a cross-laminated film surface layer, a glass fiber non-woven fabric layer and a cross-laminated film bottom layer which are stacked in sequence.

[0007] In some embodiments, the glass fiber non-woven fabric layer has a gram weight of 10 to 100 g / m 2 Glass fiber non-woven fabric.

[0008] The glass fiber nonwoven fabric is a sheet-like product made by combining continuous glass strands or short-cut glass strands in an undirected manner through a chemical binder or mechanical action.

[0009] In some embodiments, the cross-laminated film surface layer and the glass fiber non-woven fabric layer, and the glass fiber non-woven fabric layer and the cross-laminated film bottom layer are bonded by a glue layer or a resin layer, respectively.

[0010] In some specific embodiments, the adhesive layer is made of one of polyurethane adhesive, polyester adhesive, latex adhesive and unsaturated polyester adhesive.

[0011] In some specific embodiments, the resin layer is made of one of polyurethane resin, polyester resin, EVA resin, polyethylene resin, and polypropylene resin.

[0012] In some embodiments, the cross-laminated film surface layer and the cross-laminated film bottom layer are polyethylene resin films or polyethylene resin films, respectively.

[0013] In some embodiments, the thickness of the cross-laminated film surface layer and the cross-laminated film bottom layer is 40-100 μm respectively.

[0014] In some embodiments, the glass fiber inner reinforced polymer cross-laminated film has a thickness of 0.1 to 0.4 mm.

[0015] The second technical solution adopted by the utility model is: a self-adhesive waterproof coiled material, comprising a polymer cross-laminated film, a self-adhesive layer and an isolation film layer stacked in sequence, wherein the polymer cross-laminated film is the glass fiber reinforced polymer cross-laminated film mentioned above, wherein the cross-laminated film bottom layer is located between the glass fiber non-woven fabric layer and the self-adhesive layer.

[0016] In some embodiments, the self-adhesive layer is a self-adhesive polymer modified asphalt adhesive layer, a butyl adhesive layer or a hot melt adhesive layer.

[0017] In some embodiments, the thickness of the self-adhesive layer is 1.2 to 2.1 mm.

[0018] In some embodiments, the thickness of the self-adhesive waterproof membrane is 1.4-2.5 mm, such as 1.5 mm, 1.7 mm, 2.0 mm, 2.5 mm, etc. The thickness of the self-adhesive waterproof membrane usually does not include the thickness of the isolation film layer.

[0019] In some embodiments, the isolation film layer is a PE isolation film, a PET isolation film or an alloy isolation film.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The glass fiber non-woven fabric inner reinforced polymer cross-laminated film of the utility model can not only improve the heat resistance of the traditional cross-laminated film, but also improve the strength and puncture resistance by arranging a glass fiber non-woven fabric layer between the cross-laminated film surface layer and the cross-laminated film bottom layer. The glass fiber non-woven fabric inner reinforced polymer cross-laminated film is used to prepare a self-adhesive waterproof roll, which can effectively improve the thermal dimensional stability of the waterproof roll, avoid the roll shrinkage, bulging, detachment of the overlapping edge and other problems under the external alternating hot and cold environment or sunlight environment, and can also significantly improve the flatness and appearance quality of the product, and improve the reliability of the overlapping edge of the waterproof roll. The self-adhesive waterproof roll can be constructed by self-adhesion or wet laying method, which is simple to construct and forms a fully adhered structure with the base layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a self-adhesive waterproof membrane of a representative embodiment of the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the glass fiber reinforced polymer cross-laminated film in the self-adhesive waterproof membrane;

[0024] In the figure: 100, glass fiber reinforced polymer cross-laminated film; 200, self-adhesive layer; 300, isolation film layer;

[0025] 1. Cross-laminated film surface layer; 2. Glass fiber non-woven fabric layer; 3. Cross-laminated film bottom layer. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0027] like Figure 1 The self-adhesive waterproof coiled material shown comprises a glass fiber inner reinforced polymer cross-laminated film 100, a self-adhesive layer 200 and an isolation film layer 300 which are stacked in sequence.

[0028] See also Figure 2 The glass fiber inner reinforced polymer cross-laminated film 100 comprises a cross-laminated film surface layer 1, a glass fiber non-woven fabric layer 2 and a cross-laminated film bottom layer 3 which are stacked in sequence, wherein the cross-laminated film bottom layer 3 is located between the glass fiber non-woven fabric layer 2 and the self-adhesive layer 200. Compared with the traditional polymer cross-laminated film, the glass fiber inner reinforced polymer cross-laminated film 100 has better heat resistance, higher strength and puncture resistance.

[0029] The glass fiber non-woven fabric layer 2 adopts a gram weight of 10 to 100 g / m 2 Glass fiber non-woven fabric is a thin sheet product made by combining continuous glass strands or short glass strands in an undirected manner through chemical adhesives or mechanical action. For example, the weight is 50g / m 2 .

[0030] The cross-laminated film surface layer 1 and the glass fiber non-woven fabric layer 2, and the glass fiber non-woven fabric layer 2 and the cross-laminated film bottom layer 3 are bonded by a glue layer or a resin layer, for example, by a resin layer, and the resin layer is made of EVA resin.

[0031] The cross-laminated film surface layer 1 and the cross-laminated film bottom layer 3 are respectively made of polyethylene resin films, and the thicknesses thereof are respectively 40 to 100 μm.

[0032] The thickness of the glass fiber inner reinforced polymer cross-laminated film 100 is 0.1-0.4 mm, for example, 0.2 mm.

[0033] The self-adhesive layer 200 is a self-adhesive polymer modified asphalt adhesive layer, a butyl adhesive layer or a hot melt adhesive layer, and has a thickness of 1.2 to 2.1 mm; the diaphragm film layer 300 is a PE isolation film, a PET isolation film or an alloy isolation film.

[0034] The thickness of the self-adhesive waterproof membrane is 1.4 to 2.5 mm.

[0035] In some embodiments, the thickness of the self-adhesive waterproof coiled material is 1.5 mm, the thickness of the self-adhesive layer 200 is 1.3 mm, and the thickness of the glass fiber reinforced polymer cross-laminated film 100 is 0.2 mm.

[0036] The self-adhesive waterproof membrane provided by the above arrangement has the following advantages:

[0037] The use of glass fiber reinforced polymer cross-laminated film in self-adhesive waterproof membrane can effectively improve the thermal dimensional stability of the self-adhesive waterproof membrane, avoid shrinkage, bulging, detachment of the overlap edge of the waterproof membrane under the alternating hot and cold environment or sunlight environment, and can also significantly improve the flatness and appearance quality of the waterproof membrane and improve the reliability of the overlap edge of the waterproof membrane.

[0038] Self-adhesive waterproof membrane can be constructed by self-adhesive or wet laying method. It is easy to construct and forms a fully adhesive structure with the base layer.

[0039] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A glass fiber reinforced polymer cross-laminated film, characterized in that: The invention comprises a cross-laminated film surface layer, a glass fiber non-woven fabric layer and a cross-laminated film bottom layer which are stacked in sequence.

2. The glass fiber internally reinforced polymer cross-laminated film according to claim 1, characterized in that: The glass fiber non-woven fabric layer has a gram weight of 10 to 100 g / m 2 Glass fiber non-woven fabric.

3. The glass fiber internally reinforced polymer cross-laminated film according to claim 1, characterized in that: The cross-laminated film surface layer and the glass fiber non-woven fabric layer, and the glass fiber non-woven fabric layer and the cross-laminated film bottom layer are bonded by a glue layer or a resin layer respectively.

4. The glass fiber internally reinforced polymer cross-laminated film according to claim 3, characterized in that: The adhesive layer is made of one of polyurethane adhesive, polyester adhesive, latex adhesive and unsaturated polyester adhesive.

5. The glass fiber internally reinforced polymer cross-laminated film according to claim 3, characterized in that: The resin layer is made of one of polyurethane resin, polyester resin, EVA resin, polyethylene resin and polypropylene resin.

6. The glass fiber internally reinforced polymer cross-laminated film according to claim 1, characterized in that: The cross-laminated film surface layer and the cross-laminated film bottom layer are polyethylene resin films respectively.

7. The glass fiber internally reinforced polymer cross-laminated film according to claim 1 or 6, characterized in that: The thickness of the cross-laminated film surface layer and the cross-laminated film bottom layer are 40-100 μm respectively.

8. The glass fiber internally reinforced polymer cross-laminated film according to claim 1, characterized in that: The thickness of the glass fiber inner reinforced polymer cross-laminated film is 0.1-0.4 mm.

9. A self-adhesive waterproof roll material, comprising a polymer cross-laminated film, a self-adhesive layer and a release film layer stacked in sequence, characterized in that: The polymer cross-laminated film is the glass fiber inner reinforced polymer cross-laminated film according to any one of claims 1 to 8, wherein the bottom layer of the cross-laminated film is located between the glass fiber non-woven fabric layer and the self-adhesive layer.

10. The self-adhesive waterproof membrane according to claim 9, characterized in that: The self-adhesive layer is a self-adhesive polymer modified asphalt adhesive layer, a butyl adhesive layer or a hot melt adhesive layer; and / or, the thickness of the self-adhesive layer is 1.2 to 2.1 mm; and / or, the thickness of the self-adhesive waterproof membrane is 1.4 to 2.5 mm; and / or, the isolation film layer is a PE isolation film, a PET isolation film or an alloy isolation film.

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