CN207683059U - Polymer compound film and waterproof roll - Google Patents

Abstract

The utility model provides a kind of polymer compound film and waterproof roll; it is related to macromolecule membrane technical field; polymer compound film includes the fluororesin layer and thermal insulation layer and the supporting layer for protecting fluororesin layer and thermal insulation layer for being bonded to each other setting; the supporting layer is adhesively fixed by adhesive layer and the thermal insulation layer, the process layer that is on one side fitted with for improve the supporting layer and the adhesiveness that waits for adhesives of the supporting layer away from the adhesive layer.It alleviates outdoor building material in the prior art and is directly exposed in air the technical issues of being easy colour fading, burn into dusting.

Description

Polymer composite film and waterproof membrane

technical field

The utility model relates to the technical field of polymer films, in particular to a polymer composite film and a waterproof coiled material.

Background technique

Outdoor building materials have been in tropical/subtropical environments for a long time, where strong ultraviolet rays, high temperature, high humidity and high salinity exist, causing problems such as fading, corrosion, and pulverization of exposed building materials in the atmosphere; at the same time, with the development of industry, a large number of Industrial pollution creates a highly corrosive atmospheric environment in the city. Building materials are mainly damaged by the combined action of moisture, oxygen and corrosive substances in the atmosphere (such as impurities in rainwater, dust, surface deposits, etc.).

Take the SBS waterproof membrane commonly used outdoors as an example. Although the asphalt or butyl rubber in the existing SBS waterproof membrane can play a good waterproof effect, the temperature stability of the asphalt and butyl rubber is poor, and the aging resistance is poor. , durability is not easy to guarantee, under the influence of long-term wind and sun exposure and direct contact with moisture, oxygen and corrosive substances in the atmosphere, it is easy to be corroded and pulverized, and then loses waterproof performance. The surface is covered with polyethylene film to prevent the occurrence of the above situation, but the polyethylene film has a high absorption rate of ultraviolet rays, which is easy to cause photooxidation of the polymer and accelerate the aging of the film. At the same time, nitric acid and sulfuric acid (acid rain) have strong effects on it. The destructive effect of the product causes the service life to be short, which cannot meet people's needs.

Utility model content

The purpose of the utility model is to provide a polymer composite film and waterproof coiled material, so as to alleviate the technical problems in the prior art that the outdoor building materials are easy to fade, corrode and pulverize when they are directly exposed to the atmosphere.

The utility model provides a polymer composite membrane, which comprises a fluororesin layer and a heat insulating layer that are attached to each other and a supporting layer used to protect the fluororesin layer and the heat insulating layer, and the supporting layer is connected to the The heat insulation layer is bonded and fixed, and the side of the support layer away from the adhesive layer is pasted with a treatment layer for improving the adhesion between the support layer and the material to be bonded.

Further; the fluororesin layer is a PVF layer or a PVDF layer.

Further; both PVF and PVDF in the PVF layer or the PVDF layer are mixed with a colored masterbatch.

Further; the thickness of the PVF layer or the PVDF layer is 10 μm-25 μm.

Further; the heat insulation layer is aluminum foil.

Further; the thickness of the aluminum foil is 25 μm-100 μm.

Further; the adhesive layer is a polyurethane adhesive layer.

Further; the supporting layer is a PET layer or a PP layer.

Further; the thickness of the PET layer or PP layer is 30 μm˜100 μm.

The utility model also provides a waterproof coiled material, which includes the above-mentioned polymer composite film.

Compared with the prior art, the beneficial effects of the polymer composite membrane and waterproof coiled material provided by the utility model are as follows:

The polymer composite film provided by the utility model mainly includes a fluororesin layer, a heat insulating layer, an adhesive layer, a support layer and a treatment layer, wherein the fluororesin layer is directly in contact with the external environment, and the material for making the fluororesin layer is colorless Transparent fluororesin has the functions of weather resistance, corrosion resistance, stain resistance, high wear resistance, environmental protection, etc., which can effectively prevent the aging, rust, corrosion, cracking and other problems of the materials to be bonded, and greatly improve the service life of the materials.

In addition, a heat-insulating layer is also set to be bonded and fixed with the fluororesin layer, which has good heat insulation and barrier properties, and can reduce the influence of temperature changes on the bonding material; since the thickness of the fluororesin layer is very small, in order to ensure that the fluororesin In order to improve the stability of the layer, a support layer with a certain thickness is also set as the base layer. The ductility of the support layer is less than that of the fluororesin layer. In addition, the fluororesin layer and the heat insulation layer are specially bonded and fixed through the adhesive layer and the support layer to ensure the adhesion between the heat insulation layer and the support layer and prevent the fluororesin layer and heat insulation layer from being damaged by external force. It falls off from the support layer; the polymer composite film is bonded and fixed by adhesive to the material to be bonded, and the fixed treatment layer is pasted on the side of the support layer away from the adhesive layer, and the treatment layer is set to be bonded to the adhesive material. And the material is made, after the treatment layer and the material to be bonded are fixed by adhesive bonding, the adhesiveness of the polymer composite film on the material to be bonded is greatly increased.

The waterproof coiled material provided by the utility model includes the above-mentioned polymer composite membrane, wherein the polymer composite membrane is bonded and fixed with the waterproof layer made of asphalt or butyl, specifically, for the waterproof coiled material The bonding process between the polymer composite membrane and the waterproof layer is to apply glue-like asphalt or butyl evenly on the side of the polymer composite membrane with the treatment layer, and then attach the treatment layer and the waterproof layer to each other. The adhesion with butyl can complete the fixation of the polymer composite membrane on the waterproof layer. At this time, the treatment layer used has a good affinity with asphalt and butyl. After the colloidal asphalt or butyl is solidified, the polymer The composite membrane can be firmly bonded to the waterproof layer, preventing the polymer composite membrane from falling off.

In addition, the waterproof membrane has the functions of weather resistance, corrosion resistance, stain resistance, high wear resistance and environmental protection through the use of the above-mentioned polymer composite film, which can effectively prevent the aging, rust and corrosion of the materials to be bonded. , cracking and other problems, greatly improving the service life of the waterproof membrane.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural view of the polymer composite membrane provided by the embodiment of the present invention.

Icons: 100-fluorine resin layer; 200-heat insulation layer; 300-adhesive layer; 400-support layer; 500-treatment layer.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Embodiment one

As shown in Fig. 1, the utility model provides a kind of polymer composite membrane, comprises the fluororesin layer 100 and heat insulation layer 200 that are arranged mutually and is used for protecting the supporting layer 400 of fluororesin layer 100 and heat insulation layer 200, The support layer 400 is bonded and fixed to the heat insulation layer 200 through the adhesive layer 300, and the side of the support layer 400 facing away from the adhesive layer 300 is bonded with a device for improving the contact between the support layer 400 and the bonded layer. Adhesive handling layer 500 of material.

The polymer composite membrane provided by the utility model mainly includes a fluororesin layer 100, a thermal insulation layer 200, an adhesive layer 300, a support layer 400 and a treatment layer 500, wherein the fluororesin layer 100 directly contacts with the external environment, and the fluororesin layer The production material of 100 is colorless and transparent fluororesin, which has the functions of weather resistance, corrosion resistance, stain resistance, high wear resistance, environmental protection, etc., and can effectively prevent the aging, rust, corrosion, cracking and other problems of the materials to be bonded. Greatly improve the service life of materials.

In addition, the thermal insulation layer 200 is also set to be bonded and fixed with the fluororesin layer 100, which has good heat insulation and barrier properties, and can reduce the influence of temperature changes on the bonding material; since the thickness of the fluororesin layer 100 is very small, in order to To ensure the stability of the fluororesin layer 100, a supporting layer 400 with a certain thickness is also provided as the base layer. The ductility of the supporting layer 400 is smaller than that of the fluororesin layer 100. Under the support of the base layer, the fluororesin layer 100 is not easily The polymer composite film will be damaged due to external force; in addition, the fluororesin layer 100 and the heat insulation layer 200 are also specially bonded and fixed through the adhesive layer 300 and the support layer 400 to ensure that the heat insulation layer 200 and the support layer 400 The adhesive force between the fluororesin layer 100 and the heat insulating layer 200 is prevented from falling off from the supporting layer 400; One side of 300 is pasted and fixed to the treatment layer 500, and the treatment layer 500 is set to be made of a material compatible with the adhesive material, so that after the treatment layer 500 and the material to be bonded are fixed by adhesive bonding, the polymer composite film is greatly increased. Adhesion on the material to be bonded.

It is worth noting that the polymer composite membrane provided by this embodiment can be applied to outdoor buildings such as metal plates and waterproof membranes, just by setting different treatment layers 500 that can be compatible with corresponding adhesives.

Specifically, in this embodiment, the specific structure of the polymer composite membrane is described in detail below.

First, in this embodiment, the fluororesin layer 100 is set as a PVF layer or a PVDF layer.

PVF, scientific name polyvinylfluoride (polyvinylfluoride), is extruded from a copolymer of fluorine and fluorocarbon molecules. It is a copolymer containing fluorine or fluorocarbon, which has greater chemical bonding and structural stability than any other polymer. PVDF, also known as polyvinylidene fluoride, mainly refers to a homopolymer of vinylidene fluoride or a copolymer of vinylidene fluoride and a small amount of other fluorine-containing vinyl monomers. It has the characteristics of both fluororesin and general-purpose resin, and is the same as the above-mentioned PVF , has good chemical corrosion resistance, high temperature resistance, oxidation resistance, weather resistance, radiation resistance, and also has special properties such as piezoelectricity, dielectricity, and pyroelectricity.

Alternatively, in this embodiment, the fluororesin layer 100 may be made of a mixture of PVDF and PMMA.

PMMA, also called polymethyl methacrylate, is a non-toxic and environmentally friendly material with good chemical stability and weather resistance, excellent transparency, and outstanding aging resistance. Combining it with PVDF can further improve the weather resistance, corrosion resistance, stain resistance, high wear resistance, environmental protection and other functions of the polymer composite film.

Specifically, in this embodiment, both PVF and PVDF in the PVF layer or PVDF layer are mixed with a colored masterbatch.

Color masterbatch is a mixture of resin and a large amount of pigments (up to 50%) or dyes to make a high concentration of color. Color masterbatch, also known as color species, is an aggregate made by uniformly loading super-normal pigments or dyes in resin. When processing, a small amount of color masterbatch is mixed with PVF or PVDF which is itself transparent, and the colored resin or product with the designed pigment concentration can be achieved.

By adding color masterbatch, the polymer composite film can be made to have different sample colors, while achieving the above beneficial effects, it can also increase the aesthetics of the materials to be bonded and meet people's needs.

Further, in this embodiment, the thickness of the PVF layer or the PVDF layer is set to be 10 μm˜25 μm.

For example, according to the requirements of the total thickness of the polymer composite film, it can be 10 μm, 11 μm, 15 μm, 20 μm, 25 μm, etc.

Specifically, in this embodiment, the heat insulation layer 200 is set to be aluminum foil.

The aluminum foil has good thermal insulation, and it achieves the purpose of heat dissipation by reflecting the light radiated to the thermal insulation layer 200 .

In addition, aluminum foil also has the characteristics of anti-corrosion, good barrier property, high strength and good extensibility, which can reduce the influence of temperature changes on the bonding material and further strengthen the stability of the polymer composite film structure.

Specifically, in this embodiment, the thickness of the aluminum foil is set to be 25 μm˜100 μm.

For example, the thickness of the aluminum foil can be 30 μm, 41 μm, 55 μm, 60 μm, 85 μm, etc. according to the requirement of the total thickness of the polymer composite film.

In addition, this embodiment can also use other heat insulating materials such as glass fiber and asbestos as the material for making the heat insulating layer 200 , which can also meet the heat insulation requirements.

Further, in this embodiment, the adhesive layer 300 is set to be a polyurethane adhesive layer.

Polyurethane glue is a glue containing urethane and isocyanate groups in the molecular chain. Due to the strong polar isocyanate and urethane groups, it has high reactivity and can be cured at room temperature, so it is suitable for metal, rubber, glass, ceramics, etc. , plastic, wood, fabric, leather and other materials have excellent adhesive properties. The main chain of polyurethane is very flexible, and its biggest feature is that it is resistant to shock, vibration and bending fatigue, and has high peel strength, especially its excellent low temperature resistance, which is the best among existing glues. Polyurethane glue has a simple process, can be cured at room temperature and heating, and has little influence on thermal stress when different materials are glued together, and is widely used in various fields.

Specifically, the polyurethane adhesive layer in this embodiment is a two-component polyurethane glue with high corrosion resistance and strong cohesive force, which is made of the main agent and the curing agent in a weight ratio of 100:15, and can also be Add additives such as antioxidants and UV absorbers to the adhesive. The use of polyurethane glue can effectively complete the bonding of the aluminum foil and the support layer 400, and can further enhance the waterproof and anti-corrosion functions of the polymer composite film.

Further, the supporting layer 400 in this embodiment is a PET layer or a PP layer.

Here, both the PET layer and the PP layer exist in the form of non-woven fabrics.

PET, also known as polyethylene terephthalate, the non-woven fabric made of PET layer has good cloth coverage, soft hand feeling, high strength, and also has good thermal stability, temperature resistance, UV resistance and It has anti-aging characteristics and long service life, and can also be combined with the fluororesin layer 100 to prevent the influence of ultraviolet rays on the bonding material.

PP, also called polypropylene non-woven fabric, is a non-toxic, odorless milky white high-crystalline polymer, and is one of the lightest varieties of all plastics; it also has good heat resistance, with a melting point of 164-170 °C, under the action of no external force, it will not deform at 150 °C. The PP layer has high crystallinity and regular structure, so it has excellent mechanical properties, high strength, hardness and elasticity, and meets the requirements of the support layer 400 .

Further, the function of the supporting layer 400 is to ensure the stability of the polymer composite membrane structure, such as having a certain tensile capacity, therefore, it is necessary to set the thickness of the supporting layer 400 to occupy a large proportion in the total thickness of the polymer composite membrane, In this embodiment, the thickness of the PET layer or the PP layer is set to be 30 μm˜100 μm.

Embodiment two

The embodiment of the utility model provides a waterproof coiled material, which includes the above-mentioned polymer composite film.

The waterproof coiled material provided by the embodiment of the present invention includes the above-mentioned polymer composite membrane, wherein the polymer composite membrane is bonded and fixed with the waterproof layer made of asphalt or butyl, specifically, for the waterproof coil The bonding process between the polymer composite membrane and the waterproof layer in the material is to apply glue-like asphalt or butyl evenly on the side of the polymer composite membrane provided with the treatment layer 500, and then stick the treatment layer 500 and the waterproof layer together Compaction, the adhesion of asphalt and butyl can complete the fixation of the polymer composite membrane on the waterproof layer. At this time, the treatment layer 500 used has a good affinity with asphalt and butyl. After solidification, the polymer composite membrane can be firmly bonded to the waterproof layer, preventing the polymer composite membrane from falling off and ensuring the stability of the overall structure of the waterproof membrane.

In addition, the waterproof membrane has the functions of weather resistance, corrosion resistance, stain resistance, high wear resistance and environmental protection through the use of the above-mentioned polymer composite film, which can effectively prevent the aging, rust and corrosion of the materials to be bonded. , cracking and other problems, greatly improving the service life of the waterproof membrane.

Furthermore, the waterproof coiled material in this embodiment is suitable for various outdoor industrial and civil buildings, public buildings, various roofs, and underground waterproofing projects. For example, waterproof membranes can replace paint to prevent concrete or construction steel from being directly exposed to the atmosphere and being affected by corrosion, weathering, etc.

Specifically, the existing industry uses a roller coating process. If the coating process conditions are not properly controlled, the paint film is prone to roll marks. Since the paint is transferred to the surface of the object to be coated (such as concrete) in the form of a wet film on the surface of the roller, the solvent volatilizes quickly, and the viscosity of the paint is likely to change during the roller coating process. The use of the waterproof membrane in this embodiment can effectively avoid this problem, and can give full play to its advantages in weather resistance, waterproof, self-cleaning, etc. The specific advantages are as follows:

1. The weather resistance is far superior to concrete protective coatings such as chlorinated rubber, acrylic resin, polyurethane resin, etc., and the weather resistance can reach more than 20 years.

2. Water resistance: The asphalt or butyl base in the waterproof membrane itself has high-efficiency waterproof performance, which can effectively prevent moisture from invading the concrete. It can not only protect the concrete structure, but also prevent the concrete surface from absorbing water and discoloration.

3. Appearance and repair performance: Adding a small amount of concrete natural color pigment (such as gray color masterbatch) to the normal temperature curing fluorocarbon resin transparent coating can repair and adjust the local color difference of the concrete.

4. Effectively prevent the neutralization of concrete: the fluororesin layer 100 in the polymer composite film on the surface of the waterproof membrane can effectively reduce the pores and fine cracks on the surface of the concrete structure, and reduce the impact of sunlight, ultraviolet rays, acid rain, oil and gas on the concrete. Corrosion, prevents neutralization of concrete.

5. Self-cleaning property: The fluororesin layer 100 can also be modified by special chemical composition and supplemented with various additives to have good hydrophilicity and oil repellency. Rainwater washes away and has a self-cleaning function.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. A polymer composite membrane, characterized in that, comprises a fluororesin layer and a heat-insulating layer that are attached to each other and a support layer for protecting the fluororesin layer and the heat-insulation layer, and the support layer is connected to the fluororesin layer by an adhesive layer The heat insulation layer is bonded and fixed, and the side of the support layer facing away from the adhesive layer is bonded with a treatment layer for improving the adhesion between the support layer and the material to be bonded. 2. The polymer composite film according to claim 1, characterized in that, the fluororesin layer is a PVF layer or a PVDF layer. 3. The polymer composite film according to claim 2, characterized in that, the PVF and PVDF in the PVF layer or the PVDF layer are mixed with a colored masterbatch. 4. The polymer composite film according to claim 3, characterized in that, the thickness of the PVF layer or the PVDF layer is 10 μm˜25 μm. 5. The polymer composite film according to claim 4, characterized in that, the heat insulating layer is aluminum foil. 6 . The polymer composite film according to claim 5 , wherein the thickness of the aluminum foil is 25 μm˜100 μm. 7. The polymer composite film according to claim 5, characterized in that, the adhesive layer is a polyurethane adhesive layer. 8. The polymer composite film according to claim 6, characterized in that, the supporting layer is a PET layer or a PP layer. 9. The polymer composite film according to claim 8, characterized in that, the thickness of the PET layer or the PP layer is 30 μm˜100 μm. 10. A waterproof coiled material, characterized in that it comprises the polymer composite film according to any one of claims 1-9.