CN111746059A - Modified fluorocarbon film and butyl rubber composite waterproof coiled material and preparation method thereof - Google Patents
Modified fluorocarbon film and butyl rubber composite waterproof coiled material and preparation method thereof Download PDFInfo
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- CN111746059A CN111746059A CN202010625182.7A CN202010625182A CN111746059A CN 111746059 A CN111746059 A CN 111746059A CN 202010625182 A CN202010625182 A CN 202010625182A CN 111746059 A CN111746059 A CN 111746059A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/18—Layered products comprising a layer of natural or synthetic rubber comprising butyl or halobutyl rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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Abstract
The invention discloses a modified fluorocarbon film and butyl rubber composite waterproof coiled material which comprises a modified fluorocarbon film, an adhesive, a PET (polyethylene terephthalate) reinforced film, a butyl rubber layer and an isolation layer which are sequentially arranged from top to bottom; the high-weather-resistance modified fluorocarbon film is prepared by a solution casting-high-temperature drying-quenching preparation technology, and has better weather resistance, waterproof effect and mechanical strength. Compared with the prior art, the modified fluorocarbon film butyl rubber composite waterproof coiled material provided by the invention has the remarkable advantages of super-long durability, wide temperature resistance, capability of being constructed on a damp base surface and under the condition of-20 ℃ and service life of more than 30 years.
Description
Technical Field
The invention belongs to the technical field of building waterproof materials, and particularly relates to a modified fluorocarbon film butyl rubber composite waterproof coiled material with high weather resistance and a preparation method thereof.
Background
The problem of water seepage of buildings caused by water failure is always concerned by people. The water seepage of the building not only increases the maintenance cost, but also seriously affects the service life of the building, and the internal part of the building caused by the water seepage mildews and produces bacteria and releases radon gas, thereby further seriously harming the health of people. And the waterproof performance of the building is mainly realized by waterproof materials. The waterproof coiled material is an important waterproof material and is widely applied to roof, building side elevation, toilet, basement waterproofing and the like. In the waterproof construction of each part of the building, the environmental conditions faced by roof waterproofing are the most severe, and the parts are the parts which are most easy to cause waterproof failure, and the leakage rate of the roof of the domestic main urban building is up to 95.33 percent according to statistics. In a roof waterproof system, a waterproof roll is usually directly exposed to the atmospheric environment, and not only suffers from direct solar radiation, wind, rain and various chemical attacks, but also faces the challenge of great temperature difference in summer and winter, so that the waterproof material is required to have good waterproof and anti-seepage performance, good adhesion with a building substrate, a wide temperature application range, and more importantly, excellent weather resistance such as ultraviolet resistance, ozone resistance, thermal oxygen resistance, chemical attack resistance and the like, and therefore, the development of the waterproof roll with high weather resistance has important significance for improving the building roof waterproof performance and prolonging the service life of a building.
At present, the high weather-resistant waterproof coiled material in China mainly comprises two types, one type is that the weather resistance of the waterproof coiled material is improved by adding an anti-aging agent and an anti-ultraviolet auxiliary agent into raw materials, for example, a modified waterproof coiled material and a preparation method thereof are reported in a patent publication (CN103088923A), and the weather resistance of the polyvinyl chloride waterproof coiled material is improved by adding light stabilizer, ultraviolet absorbent, anti-aging agent and other components. Although the weather resistance of the waterproof coiled material prepared by the method is greatly improved compared with that of the traditional asphalt waterproof coiled material, the service life of the waterproof coiled material is not long along with the gradual consumption of the anti-aging agent. The other is to improve the weather resistance of the waterproof coiled material by a shielding method, such as a sand-surface composite waterproof coiled material (CN106183216A), a film-coated waterproof coiled material (CN104553185A) and the like. Compared with a method of adding an anti-aging agent, the method of covering the film is obviously more favorable for improving the weather resistance of the waterproof coiled material and prolonging the service life of the material.
Fluorocarbon resin is a high polymer material with better ultraviolet aging resistance and weather resistance, and is often used as a weather-resistant antifouling film on the surface of a photovoltaic material. In recent years, a fluorocarbon film is gradually used for surface coating to improve weather resistance of a waterproof roll product. Although the fluorocarbon film has excellent weather resistance, the mechanical property is not ideal, and the miscibility and the adhesion of the fluorocarbon resin and other materials are not good due to the low surface free energy, so that the service life of the waterproof coiled material compounded by the fluorocarbon film is limited to a certain extent. The patent (CN110528788A) discloses a PVDF composite TPO sun-proof anti-aging composite membrane for waterproof coiled materials and a preparation method thereof, and the weather resistance of TPO waterproof materials is improved by covering the surface with a highly weather-proof PVDF membrane, so that the service life of the waterproof composite membrane can reach 25 years. However, in the method, the PVDF resin, the LDPE, the EGMA-g-PMMA and the color master batch are blended, granulated and then formed into the film, so that the mechanical property of the PVDF film is improved to a certain extent, but the weather resistance of the PVDF film is greatly reduced due to the introduction of HDPE, EGMA-g-PMMA and other materials with general weather resistance.
Disclosure of Invention
In conclusion, the invention aims to provide the modified fluorocarbon film and butyl rubber composite waterproof roll and the preparation method thereof.
The invention provides a modified fluorocarbon film and butyl rubber composite waterproof coiled material which comprises a modified fluorocarbon film, an adhesive, a PET (polyethylene terephthalate) reinforced film, a butyl rubber layer and an isolation layer which are sequentially arranged from top to bottom.
Preferably, the thickness of the modified fluorocarbon film is 0.01-0.05mm, the thickness of the adhesive is 0.001-0.003 mm, the thickness of the PET reinforced film is 0.01-2.5 mm, and the thickness of the butyl rubber layer is 0.5-5 mm.
Preferably, the modified fluorocarbon film comprises the following components in percentage by mass:
fluorocarbon resin: 65.0-95.0%;
silicone resin: 1.0-10.0%;
silicone resin catalyst: 0.03-0.5%;
nano zinc oxide: 1.0-4.5%;
filling: 2.97-20.0%;
preferably, the fluorocarbon resin is one of PVDF resin and PEVE resin.
Preferably, the silicone resin is one of polymethyl silicone resin, polyethyl silicone resin, polyaryl silicone resin, polyalkyl aryl silicone resin, or silicone modified epoxy resin.
Preferably, the filler is one or a mixture of aluminum powder, nano titanium dioxide, silicon dioxide and color master batch.
Preferably, the adhesive is one of a polyurethane adhesive and an organic silicon modified epoxy resin adhesive.
Preferably, the isolation layer is a PE film, a PP film, a PET film or silicone oil isolation paper.
The invention also provides a preparation method of the modified fluorocarbon film-butyl rubber composite waterproof coiled material, which comprises the following steps:
(1) mixing fluorocarbon resin with a solvent to prepare a fluorocarbon resin solution with the concentration of 5-45%;
(2) putting nano zinc oxide into the fluorocarbon resin solution prepared in the step (1), and dispersing in a ball mill for 1-2 hours to prepare a nano zinc oxide fluorocarbon resin solution;
(3) conveying the nano zinc oxide fluorocarbon resin solution obtained in the step (2) into a stirrer, adding a filler, dispersing for 1-2 h, and adding an organic silicon resin and an organic silicon resin curing agent to prepare a modified fluorocarbon resin solution;
(4) casting the modified fluorocarbon resin solution to form a uniform liquid film, drying at the temperature of 160-300 ℃, and then quenching to room temperature by using water to prepare a modified fluorocarbon film with the thickness of 0.01-0.05 mm;
(5) coating the adhesive on the surface of a PET (polyethylene terephthalate) reinforced film and then performing composite bonding with the modified fluorocarbon film to obtain a reinforced modified fluorocarbon film;
(6) and (3) pressurizing and thermally compounding the reinforced modified fluorocarbon film, the butyl rubber layer and the isolation layer by using a calender, and rolling to obtain the modified fluorocarbon film and butyl rubber composite waterproof coiled material.
Preferably, the solvent in step (1) is one or more of NMP, DMAc, DMF, TEP, DMSO, ethyl acetate, butyl acetate or cyclohexanone.
The invention has the beneficial effects that:
the invention provides a modified fluorocarbon film and butyl rubber composite waterproof coiled material and a preparation method thereof, wherein the composite coiled material is composed of a modified fluorocarbon film with the thickness of 0.01-0.05mm, an adhesive with the thickness of 0.001-0.003 mm, a PET (polyethylene terephthalate) reinforced film with the thickness of 0.01-2.5 mm, a butyl rubber layer with the thickness of 0.5-5 mm and an isolating layer which are sequentially arranged. The high-weather-resistance modified fluorocarbon film is prepared by a solution casting-high-temperature drying-quenching preparation technology, and has better weather resistance, waterproof effect and mechanical strength. Compared with the prior art, the modified fluorocarbon film butyl rubber composite waterproof coiled material provided by the invention has the remarkable advantages of super-long durability, wide temperature resistance, capability of being constructed on a damp base surface and under the condition of-20 ℃ and service life of more than 30 years.
In addition, the preparation method provided by the invention is simple, low in cost, energy-saving and environment-friendly, and is suitable for large-scale industrial production.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a modified fluorocarbon film and butyl rubber composite waterproof coiled material which comprises a modified fluorocarbon film, an adhesive, a PET (polyethylene terephthalate) reinforced film, a butyl rubber layer and an isolation layer which are sequentially arranged from top to bottom.
Preferably, the thickness of the modified fluorocarbon film is 0.01-0.05 mm;
the thickness of the adhesive is 0.001mm-0.003 mm;
the thickness of the PET reinforced film is 0.01mm-2.5 mm;
the thickness of the butyl rubber layer is 0.5mm-5 mm;
preferably, the modified fluorocarbon film comprises the following components in percentage by mass:
fluorocarbon resin: 65.0-95.0%;
silicone resin: 1.0-10.0%;
silicone resin catalyst: 0.03-0.5%;
nano zinc oxide: 1.0-4.5%;
filling: 2.97-20.0%;
the fluorocarbon film modified by the components overcomes the defect of poor weather resistance of the existing waterproof roll, further improves the comprehensive performances of the fluorocarbon film such as mechanical property, weather resistance and the like, improves the problem of short service life of the weather-resistant waterproof roll,
preferably, the fluorocarbon resin is one of PVDF resin and PEVE resin. Among them, PVDF resin is preferred. The source of the PVDF resin and the PEVE resin is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used.
The silicone resin may preferably be one of polymethyl silicone resin, polyethyl silicone resin, polyaryl silicone resin, polyalkylaryl silicone resin, or silicone-modified epoxy resin. The source of the silicone resin in the present invention is not particularly limited, and commercially available products known to those skilled in the art may be used.
The organic silicon resin catalyst is the organic silicon resin catalyst known by the person skilled in the art, and preferably can be one or more of dibutyl tin dilaurate, dibutyl tin diacetate, stannous octoate, diethyl tin dioctoate or tetramethyl guanidine salt; the invention is not particularly limited to the source of the silicone resin catalyst, and any commercially available product known to those skilled in the art may be used.
Preferably, the filler is one or a mixture of aluminum powder, nano titanium dioxide, silicon dioxide and color master batch. The source of the filler in the present invention is not particularly limited, and commercially available products known to those skilled in the art can be used
The weather resistance and the hydrophobicity of the modified fluorocarbon film are further improved by adopting the organic silicon blending, and the ultraviolet transmittance of the fluorocarbon film is reduced by the shielding filler, so that the ultraviolet aging of the butyl rubber layer is further avoided;
preferably, the adhesive is one of a polyurethane adhesive and an organic silicon modified epoxy resin adhesive. The source of the adhesive is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used.
Preferably, the isolation layer is a PE film, a PP film, a PET film or silicone oil isolation paper.
The invention adopts the butyl rubber layer with stable chemical property, wide range of using temperature, good adhesive property and excellent water tightness as the waterproof functional layer of the composite waterproof coiled material, and further overcomes the defects that the existing waterproof coiled material has narrow temperature resistance range, poor adhesive property with a building base material and can not be implemented at low temperature and moist base surfaces.
The modified fluorocarbon film butyl rubber composite waterproof coiled material has the remarkable advantages of super-long durability, wide temperature resistance, construction under the conditions of a damp base surface and a temperature of-20 ℃, and service life of more than 30 years.
The invention also provides a preparation method of the modified fluorocarbon film-butyl rubber composite waterproof coiled material, which comprises the following steps:
(1) mixing fluorocarbon resin with a solvent to prepare a fluorocarbon resin solution with the concentration of 5-45%;
(2) putting nano zinc oxide into the fluorocarbon resin solution prepared in the step (1), and dispersing in a ball mill for 1-2 hours to prepare a nano zinc oxide fluorocarbon resin solution;
(3) conveying the nano zinc oxide fluorocarbon resin solution obtained in the step (2) into a stirrer, adding a filler, dispersing for 1-2 h, and adding an organic silicon resin and an organic silicon resin curing agent to prepare a modified fluorocarbon resin solution;
(4) casting the modified fluorocarbon resin solution to form a uniform liquid film, drying at the temperature of 160-300 ℃, and then quenching to room temperature by using water to prepare a modified fluorocarbon film with the thickness of 0.01-0.05 mm;
(5) coating the adhesive on the surface of a PET (polyethylene terephthalate) reinforced film and then performing composite bonding with the modified fluorocarbon film to obtain a reinforced modified fluorocarbon film;
(6) and (3) pressurizing and thermally compounding the reinforced modified fluorocarbon film, the butyl rubber layer and the isolation layer by using a calender, and rolling to obtain the modified fluorocarbon film and butyl rubber composite waterproof coiled material.
Preferably, the solvent in step (1) is one or more of NMP, DMAc, DMF, TEP, DMSO, ethyl acetate, butyl acetate or cyclohexanone.
The method further improves the mechanical property of the modified fluorocarbon film by the solution casting-high temperature drying-quenching preparation technology and the PET film composite enhancement method.
In order to further illustrate the present invention, the following detailed description of the technical solutions provided by the present invention is provided with reference to examples.
Example 1
PVDF resin with the mass percent of 95% is dissolved in DMAc solvent to prepare PVDF/DMAc solution with the concentration of 15%.
And (2) putting 1% of nano zinc oxide in the PVDF/DMAc solution in percentage by mass, and dispersing in a ball mill for about 1.5h to prepare the PVDF/DMAc solution of the nano zinc oxide.
Conveying the nano zinc oxide PVDF/DMAc solution into a stirrer, adding 2% by mass of titanium dioxide, dispersing for 1h, adding 1.95% by mass of polyethylene silicone resin and 0.05% by mass of dibutyl tin dilaurate, and preparing the modified PVDF/DMAc solution.
The modified PVDF/DMAc solution is cast into a uniform liquid film, dried at the temperature of about 210 ℃, and then quenched to room temperature by water to prepare the modified PVDF film with the thickness of 0.01 mm.
And then, coating a polyurethane adhesive with the thickness of about 0.001mm on the surface of the PET reinforced film with the thickness of 0.2mm, and performing composite bonding with the modified PVDF film with the thickness of 0.01mm to obtain the PET reinforced modified PVDF film.
And (3) carrying out pressure thermal compounding on the PET reinforced modified PVDF film, the butyl rubber layer with the thickness of 1.1mm and the PET isolating film with the thickness of 0.005mm by using a calender, and rolling to obtain the modified PVDF film butyl rubber composite waterproof coiled material with the thickness of 1.0 mm.
Compared with the existing waterproof coiled material product, the modified PVDF film-butyl rubber composite waterproof coiled material prepared by the embodiment has the maximum tensile force of 427N/50mm, the heat resistance of 100 ℃ and the low-temperature flexibility of-40 ℃, can be constructed at the temperature of-20 ℃ in the northeast of China, has excellent weather resistance, and can still keep the tensile strength of 82.3 percent after being aged for 6000 hours by artificial climate.
Example 2
And dissolving 65% of PVDF resin in DMF solvent to prepare 45% PVDF/DMF solution.
Putting 4.5% of nano zinc oxide by mass into the PVDF/DMF solution, and dispersing in a ball mill for about 2 hours to prepare the PVDF/DMF solution of the nano zinc oxide.
Conveying the nano zinc oxide PVDF/DMF into a stirrer, adding 10% by mass of titanium dioxide and 10% by mass of silicon dioxide, dispersing for 2 hours, and adding 10% by mass of polyalkylaryl organic silicon resin and 0.5% by mass of tin diethyldioctoate to prepare the modified PVDF/DMF solution.
The modified PVDF/DMF solution is cast into a uniform liquid film, dried at the temperature of about 230 ℃, and then quenched to room temperature by water to prepare the modified PVDF film with the thickness of 0.05 mm.
And coating an organic silicon modified epoxy resin adhesive with the thickness of about 0.003mm on the surface of a PET (polyethylene terephthalate) reinforced membrane with the thickness of 0.02mm, and carrying out composite bonding with a modified PVDF membrane with the thickness of 0.05mm to obtain the PET reinforced modified PVDF membrane.
And (3) carrying out pressure thermal compounding on the PET reinforced modified PVDF film, the butyl rubber layer with the thickness of 5.0mm and the PP isolating film with the thickness of 0.02mm by using a calender, and rolling to obtain the modified PVDF film butyl rubber composite waterproof coiled material with the thickness of 5.0 mm.
Compared with the existing waterproof coiled material product, the modified PVDF film butyl rubber composite waterproof coiled material prepared by the embodiment has the maximum tensile force of 367N/50mm, the heat resistance of 100 ℃ and the low-temperature flexibility of-40 ℃, can be constructed at the temperature of-20 ℃ in the northeast of China, has excellent hydrophobicity, waterproofness, mildew resistance and weather resistance, and can still keep the tensile strength of over 84.2 percent after being aged for 6000 hours by artificial climate.
Example 3
Dissolving PEVE resin with the mass fraction of 85% in ethyl acetate/cyclohexanone solvent with the volume ratio of 1:1 to prepare PEVE/ethyl acetate/cyclohexanone solution with the concentration of 20%.
And (3) putting 2% of nano zinc oxide by mass into the PEVE/ethyl acetate/cyclohexanone solution, and dispersing for about 2 hours in a ball mill to obtain the nano zinc oxide PEVE/ethyl acetate/cyclohexanone solution. Conveying the nano zinc oxide PEVE/ethyl acetate/cyclohexanone solution into a stirrer, adding 5% aluminum powder by mass, dispersing for 2 hours, and adding 7.8% polymethyl silicone resin by mass and 0.2% stannous octoate by mass to prepare the modified PEVE/ethyl acetate/cyclohexanone solution.
Casting the modified PEVE/ethyl acetate/cyclohexanone solution to form a uniform liquid film, drying at the temperature of about 250 ℃, and then quenching to room temperature by using water to prepare the modified PEVE film with the thickness of 0.02 mm. And coating an organic silicon modified epoxy resin adhesive with the thickness of about 0.002mm on the surface of a PET (polyethylene terephthalate) reinforced film with the thickness of 2.5mm, and carrying out composite bonding with a modified PEVE film with the thickness of 0.02mm to obtain the PET reinforced modified PEVE film.
And (3) carrying out pressurized thermal compounding on the PET reinforced modified PEVE film, the butyl rubber layer with the thickness of 2.0mm and the PE isolating film with the thickness of 0.03mm by using a calender, and rolling to obtain the modified PEVE film and butyl rubber composite waterproof coiled material with the thickness of 2.0 mm.
Compared with the existing waterproof coiled material product, the modified PEVE film and butyl rubber composite waterproof coiled material prepared by the embodiment has the maximum tensile force of 538N/50mm, the heat resistance of 100 ℃, the low-temperature flexibility of-40 ℃, can be constructed at the temperature of-20 ℃ in the northeast of China, can be constructed on a wet base surface in rainy days, has excellent hydrophobicity, waterproofness, mildew resistance and weather resistance, and can still keep the tensile strength of more than 85.4 percent after being aged for 6000 hours by artificial climate.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. The modified fluorocarbon film and butyl rubber composite waterproof coiled material is characterized by comprising a modified fluorocarbon film, an adhesive, a PET (polyethylene terephthalate) reinforced film, a butyl rubber layer and an isolation layer which are sequentially arranged from top to bottom.
2. The modified fluorocarbon film-butyl rubber composite waterproof roll material as claimed in claim 1, wherein the thickness of the modified fluorocarbon film is 0.01-0.05mm, the thickness of the adhesive is 0.001-0.003 mm, the thickness of the PET reinforcing film is 0.01-2.5 mm, and the thickness of the butyl rubber layer is 0.5-5 mm.
3. The modified fluorocarbon film-butyl rubber composite waterproof roll material as claimed in claim 1, wherein the modified fluorocarbon film comprises the following components in percentage by mass:
fluorocarbon resin: 65.0-95.0%;
silicone resin: 1.0-10.0%;
silicone resin catalyst: 0.03-0.5%;
nano zinc oxide: 1.0-4.5%;
filling: 2.97-20.0%;
4. the modified fluorocarbon film-butyl rubber composite waterproof roll as claimed in claim 3, wherein the fluorocarbon resin is one of PVDF resin and PEVE resin.
5. The modified fluorocarbon film-butyl rubber composite waterproof roll as claimed in claim 3, wherein the silicone resin is one of polymethyl silicone resin, polyethyl silicone resin, polyaryl silicone resin, polyalkyl aryl silicone resin, or silicone modified epoxy resin.
6. The modified fluorocarbon film-butyl rubber composite waterproof roll as claimed in claim 3, wherein the filler is one or a mixture of aluminum powder, nano titanium dioxide, silicon dioxide and color master batch.
7. The modified fluorocarbon film-butyl rubber composite waterproof roll as claimed in claim 1, wherein the adhesive is one of a polyurethane adhesive and an organosilicon modified epoxy resin adhesive.
8. The modified fluorocarbon film-butyl rubber composite waterproof roll as claimed in claim 1, wherein the isolation layer is a PE film, a PP film, a PET film or silicone oil isolation paper.
9. A method for preparing a modified fluorocarbon film-butyl rubber composite waterproof roll material as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps:
(1) mixing fluorocarbon resin with a solvent to prepare a fluorocarbon resin solution with the concentration of 5-45%;
(2) putting nano zinc oxide into the fluorocarbon resin solution prepared in the step (1), and dispersing in a ball mill for 1-2 hours to prepare a nano zinc oxide fluorocarbon resin solution;
(3) conveying the nano zinc oxide fluorocarbon resin solution obtained in the step (2) into a stirrer, adding a filler, dispersing for 1-2 h, and adding an organic silicon resin and an organic silicon resin curing agent to prepare a modified fluorocarbon resin solution;
(4) casting the modified fluorocarbon resin solution to form a uniform liquid film, drying at the temperature of 160-300 ℃, and then quenching to room temperature by using water to prepare a modified fluorocarbon film with the thickness of 0.01-0.05 mm;
(5) coating the adhesive on the surface of a PET (polyethylene terephthalate) reinforced film and then performing composite bonding with the modified fluorocarbon film to obtain a reinforced modified fluorocarbon film;
(6) and (3) pressurizing and thermally compounding the reinforced modified fluorocarbon film, the butyl rubber layer and the isolation layer by using a calender, and rolling to obtain the modified fluorocarbon film and butyl rubber composite waterproof coiled material.
10. The method according to claim 9, wherein the solvent in step (1) is one or more selected from NMP, DMAc, DMF, TEP, DMSO, ethyl acetate, butyl acetate, and cyclohexanone.
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