CN108187505A - A kind of waterproof and breathable composite membrane - Google Patents
A kind of waterproof and breathable composite membrane Download PDFInfo
- Publication number
- CN108187505A CN108187505A CN201810074264.XA CN201810074264A CN108187505A CN 108187505 A CN108187505 A CN 108187505A CN 201810074264 A CN201810074264 A CN 201810074264A CN 108187505 A CN108187505 A CN 108187505A
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- particle
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- composite membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- 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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
-
- 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
- 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
-
- 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
- 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
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of waterproof and breathable composite membrane, the composite membrane includes nonwoven layer, macromolecule membranous layer, filament layer, doped with inorganic nano-particle wherein in polymeric membrane layer material, in order to realize the high degree of dispersion of inorganic nano-particle, nano-particle macromolecule dispersing agent is also added in macromolecule membranous layer, it is used to implement in Kynoar and nano level particle is formed with colloidal sol technology, it is ensured that high degree of dispersion of the inorganic nano-particle in Kynoar grid and stable absorption.Being greatly improved compared with similar film in terms of intensity and antifouling property, stretching resistance can reach 40Kg to obtained inorganic macromolecular composite film, and PVDF composite membranes is caused to be more easy to adapt to the environment of high intensity, ensure that wire broken rate is less than 1 ‰.
Description
Technical field
The invention belongs to Archtectural Coatings technical field, more particularly to a kind of waterproof and breathable composite membrane.
Background technology
In the 1940s, the building scholar of Germany has found, the tack of asphalt water-proof coiled material and coating film waterproof material with
Seal feature causes the residual moisture in concrete structure to be closed in structure, and the steam in concrete structure can not dissipate
It sends out and leads to roofing and wall mould growth, indoor air quality is with people's health in residential environment by serious threat.Therefore, German construction circle
Begin to use the roof padding with permeability, to replace self-adhesive coiled material and coating waterproofing, this gas permeability bed course sky is laid on
On roof-base, the steam of cast-in-place concrete roof plate is made to emit rapidly, thus avoid the growth of mould.
Under historical background at that time, people to the understanding of building energy conservation not enough, in the 1970s, with world's energy
The outburst of source crisis, American-European countries increasingly pay attention to Building Energy-saving.Energy expert's discovery, this gas permeability bed course
Although the steam of cast-in-place concrete roof is enable to discharge, moisture-proof and mould problems are efficiently solved, however a large amount of steam are to guarantor
Warm layer discharge, the thermal property of thermal insulation material are seriously destroyed.20th century mid-term, the U.S. and Canadian building standard association
Expert has found, the condensation of external wall and steam in roofing can seriously affect building thermal insulation material performance and building enclosure it is resistance to
Long property, causes mould to grow.And the main reason for causing to make moist is to be penetrated by building external air to building enclosure
Liquid phase water and vapour phase water.Begin to use waterproof membrane from some buildings in this U.S., be laid on outside insulating layer as building cladding
System, to strengthen the air-tightness and watertightness of building, but this waterproof membrane is airtight, and the tide vapour of building enclosure still can not dissipate
It sends out and cannot thoroughly solve the problems, such as moisture-proof.By continuous scientific research and practice, the architecture field expert in Germany and the U.S. is finally
It was found that gas permeability roof padding is changed to air-locked coiled material is laid on roof-base as vapor barrier layer sky, make cast-in-place concrete room
The steam in face is discharged to a certain extent, slows down the speed that the steam of concrete roof is discharged to insulating layer；Using ventilative
Property waterproof membrane as building encasing system (claiming waterproof ventilated membrane afterwards), liquid phase water and the vapour phase water that building external is prevented to penetrate into
While, and the steam of insulating layer is made to emit rapidly.Being used cooperatively for vapor barrier layer and waterproof ventilated membrane, strengthens building gas
Close property, watertightness, while solving moisture-proof and mould, and effective protection Thermal Performance of Envelope Structure, so as to be really achieved
Save the purpose of energy consumption.Late 1980s, waterproof ventilated membrane scheme is widelyd popularize in European and American developed countries, extensive
Applied to residential architecture and utilities building, waterproof ventilated membrane architectural construction is known as in " house that can be breathed ".Waterproof ventilated membrane is spread
On insulating layer, effective protection insulating layer does not need to pour pea gravel concreten again on insulating layer, and the optimization of scheme reduces
Construction cost.The also successive equipment Imported From German EMH Company of the country such as Japan, Malaysia, the technology in the U.S., start mass production and using waterproof
Ventilated membrane.The Chinese government increasingly paid attention to building energy conservation in recent years so that waterproof ventilated membrane scheme starts to push greatly in China
Extensively, it and formulates《Waterproof ventilated membrane architectural construction》、《Profiled sheet, battenboard roofing and external wall architectural construction》Scheme Deng special project
Collection.
Kynoar (PVDF) molecular structure repetitive unit is-CF2-CH2, crystallinity 50%-60%, fluorine content is
59%.L.75-1.78g/cm density is3.About -35 DEG C of glass transition temperature, below -62 DEG C of brittle temperature.Crystalline melt point about 170
DEG C, heat decomposition temperature>316 DEG C, temperature is used for a long time and causes 110 DEG C for -40 DEG C, mechanical strength is higher, has self-extinguishment.PVDF is also
With excellent rigidity, hardness, creep resistant, abrasion performance and belt cutting-resisting property, and chemical stability is good, can antioxidant, acid,
The corrosion and swelling of alkali, salt, halogen, aromatic hydrocarbons, fat and chlorinated solvent.Uvioresistant and ageing-resistant performance excellent PVDF makes
It, which is placed in outdoor, can remain unchanged for a long period of time a kind of crisp waterproof and breathable membrane material for not being cracked, being new type ideal.
As demand of the China to waterproof ventilated membrane constantly rises, while to various aspects such as its mechanical performance and service life
It can there has also been higher demands.Wherein, inorganic-organic composite membrane becomes one of hot spot of film research by the performance of its protrusion.
The characteristics of composite membrane, is：The advantages of it is not only expected to concentrate organic film and inoranic membrane respectively, the defects of making up them, Er Qieke
With develop single membrane material originally without comprehensive performance, meet specific needs.Numerous studies show by adulterating inorganic receive
Rice corpuscles (SiO2, ZnO, TiO2Deng), it can so that the performance of composite membrane in all respects is improved, inorganic nano-particle adds
Add so that the micropore dispersion of composite material is more uniform, hole more horn of plenty, permeability is more superior.Adulterate inorganic nano-particle
Perforated membrane afterwards can not only enhance the mechanical performance of film layer, also improve the anti-fouling performance of film, stain resistance and similar film phase
Than stronger.In building membrane material industry, ZnO, TiO are added2Wait nano particles that can also play good ultraviolet screener work(
Can, if can be uniformly dispersed in high molecular material, it can cause composite membrane while high transparency is kept, it can be with
Obtain excellent ultraviolet shielding function.
But inorganic nano-particle is due to larger in physicochemical property and high molecular material gap, after blending easily in height
It is formed and reunited on molecular material, nano-particle dispersion unevenness does not have corresponding effect not only, can also block composite membrane duct, shadow
Ring the permeability of film.Therefore, it realizes the high degree of dispersion of inorganic nano-particle in inorganic organic polymer composite membrane, is to prepare
Nanocomposites polymer compound film needs critical issue urgently to be resolved hurrily.
Invention content
The main technical problem to be solved in the present invention：The machinery and permeability of waterproof ventilated membrane are improved, enhances its use
Service life improves the stain resistance of composite membrane, realizes high degree of dispersion of the inorganic nano-particle in high molecular material.
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of waterproof and breathable composite membranes
The present invention is used to implement in Kynoar by adding macromolecule dispersing agent and forms nanoscale with colloidal sol technology
Particle, it is ensured that high degree of dispersion of the inorganic nano-particle in Kynoar grid and stablize adsorb.Meanwhile in order to further
The mechanicalness and antifouling property of composite membrane are improved, also compound one layer of filament and non-woven fabrics on high molecular material make composite membrane
The various aspects such as tensile strength, compression strength and stain resistance greatly improve compared with similar film.
As preferred technical solution：
A kind of waterproof and breathable composite membrane, it is characterised in that：Include nonwoven layer, macromolecule membranous layer, filament layer is described
Polymeric membrane layer material is the pvdf membrane doped with inorganic nano-particle, and the filament layer uniform winding is PVDF outer surfaces
Composite film material is formed, includes nano-particle macromolecule dispersing agent in the macromolecule membranous layer.
Preferably, the inorganic nano-particle is SiO2, ZnO, TiO2In any one.
Preferably, institute's nano-particle macromolecule dispersing agent is dimethyl silicone polymer.
Preferably, the nonwoven layer is encapsulated into using encapsulation technology outside pvdf membrane.
Preferably, the aperture of the non-woven fabrics is 5-10um.
Preferably, the fiber filament can be terylene, polyamide fibre, polypropylene fibre, viscose rayon, glass fibre or aramid fiber
In any one.
As described above, the waterproof and breathable composite membrane of the present invention, has the advantages that：
1st, inorganic nano-particle is added in PVDF casting solutions, film wire is made to have on the basis of PVDF good characteristics are kept
Stronger mechanical performance, compound membrane pores are enriched, and have good permeability, and composite membrane is applied to above construction material,
In ZnO, TiO2Nano particle also acts the function of shielding ultraviolet rays.
2nd, by the way that non-woven fabrics is encapsulated into outside pvdf membrane, bulky grain and macromolecule contaminant has been obstructed, has been improved
The contamination resistance of PVDF composite membranes.
3rd, using fiber-reinforced composite membrane structure, make the tensile strength of PVDF composite membranes and compression strength and similar film phase
Than greatly improving, stretching resistance can reach 40Kg, and PVDF composite membranes is caused to be more easy to adapt to the environment of high intensity, ensure wire broken rate
Less than 1 ‰.
4th, the addition of macromolecule dispersing agent ensure that in Kynoar forms nano level particle with colloidal sol technology, it is ensured that
High degree of dispersion of the inorganic nano-particle in Kynoar grid and stablizing is adsorbed so that compound breath film is on the whole more
Stablize.
Description of the drawings
Fig. 1 is shown as the schematic diagram of the first embodiment.
Fig. 2 is shown as the schematic diagram of second of embodiment.
Fig. 3 is shown as the schematic diagram of the third embodiment.
In figure：1- nonwoven layers；2- macromolecule membranous layers；3- filament layers；4- inorganic nano-particles.
Specific embodiment
Embodiment one：
A kind of waterproof and breathable composite membrane includes nonwoven layer (1), macromolecule membranous layer (2), filament layer (3), the height
Molecule film layer (2) material is the pvdf membrane doped with inorganic nano-particle (4), i.e., inorganic nano-particle (4) is added in PVDF castings
In film liquid, film wire is made to have stronger mechanical performance on the basis of PVDF good characteristics are kept, the macromolecule membranous layer (1),
Filament layer (3) includes the dispersion of nano-particle macromolecule by common adhesives in the macromolecule membranous layer (2)
Agent.
The inorganic nano-particle (4) is SiO2, ZnO, TiO2In any one.
Institute's nano-particle macromolecule dispersing agent is dimethyl silicone polymer.
The nonwoven layer is encapsulated into using encapsulation technology outside pvdf membrane.
The aperture of the non-woven fabrics is 5-10um.
The filament can be arbitrary in terylene, polyamide fibre, polypropylene fibre, viscose rayon, glass fibre or aramid fiber
It is a kind of.
Embodiment two：
A kind of waterproof and breathable composite membrane includes nonwoven layer (1), macromolecule membranous layer (2), filament layer (3), the height
Molecule film layer (2) material is the pvdf membrane doped with inorganic nano-particle (4), i.e., inorganic nano-particle (4) is added in PVDF castings
In film liquid, film wire is made to have stronger mechanical performance, the macromolecule membranous layer, fiber on the basis of PVDF good characteristics are kept
Silk layer PVDF outer surfaces by filament uniform winding after the original spinning of raw material by first forming composite film material, the height
(2) include nano-particle macromolecule dispersing agent in molecule film layer.
The inorganic nano-particle (4) is SiO2, ZnO, TiO2In any one.
Institute's nano-particle macromolecule dispersing agent is dimethyl silicone polymer.
The nonwoven layer is encapsulated into using encapsulation technology outside pvdf membrane.
The aperture of the non-woven fabrics is 5-10um.
The filament can be arbitrary in terylene, polyamide fibre, polypropylene fibre, viscose rayon, glass fibre or aramid fiber
It is a kind of.
Embodiment three：
A kind of waterproof and breathable composite membrane, including promising nonwoven layer (1), macromolecule membranous layer (2), filament layer (3) is described
Macromolecule membranous layer (2) material is the pvdf membrane doped with inorganic nano-particle (4), i.e., inorganic nano-particle (4) is added in PVDF
In casting solution, film wire is made to have stronger mechanical performance, the macromolecule membranous layer on the basis of PVDF good characteristics are kept
(2), filament layer (3) by after macromolecule PVDF material liquids are uniformly attached on filament spinning formed composite material,
Polymeric membrane is allowd uniformly to wrap in this way and is attached to filament both sides, ensure that PVDF is i.e. not easy to break in spinning, is saved
Cost, improves work efficiency, nano-particle macromolecule dispersing agent is included in the polymeric membrane.
The inorganic nano-particle (4) is SiO2, ZnO, TiO2In any one.
Institute's nano-particle macromolecule dispersing agent is dimethyl silicone polymer.
The nonwoven layer is encapsulated into using encapsulation technology outside pvdf membrane.
The aperture of the non-woven fabrics is 5-10um.
The fiber filament can be appointing in terylene, polyamide fibre, polypropylene fibre, viscose rayon, glass fibre or aramid fiber
Meaning is a kind of.
The present invention may be also used in other field other than as common building composite membrane, other to further include：Tissue
The application of template, electromagnetic protection, composite barrier and liquid crystal display etc..
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (6)
1. a kind of waterproof and breathable composite membrane, it is characterised in that：Include nonwoven layer (1), macromolecule membranous layer (2), filament layer
(3), macromolecule membranous layer (2) material is the pvdf membrane doped with inorganic nano-particle (4), and the filament layer (3) is uniform
It is wrapped in PVDF outer surfaces and forms composite film material, the dispersion of nano-particle macromolecule is included in the macromolecule membranous layer (2)
Agent.
2. waterproof and breathable composite membrane according to claim 1, it is characterised in that：The inorganic nano-particle (4) is SiO2,
ZnO, TiO2In any one.
3. waterproof and breathable composite membrane according to claim 1, it is characterised in that：The nano-particle macromolecule dispersing agent is
Dimethyl silicone polymer.
4. waterproof and breathable composite membrane according to claim 1, it is characterised in that：The nonwoven layer is sealed using encapsulation technology
It is attached to outside pvdf membrane.
5. waterproof and breathable composite membrane according to claim 4, it is characterised in that：The aperture of the non-woven fabrics is 5-10um.
6. waterproof and breathable composite membrane according to claim 1, it is characterised in that the filament can be terylene, polyamide fibre,
Any one in polypropylene fibre, viscose rayon, glass fibre or aramid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074264.XA CN108187505A (en) | 2018-01-25 | 2018-01-25 | A kind of waterproof and breathable composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810074264.XA CN108187505A (en) | 2018-01-25 | 2018-01-25 | A kind of waterproof and breathable composite membrane |
Publications (1)
| Publication Number | Publication Date |
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| CN108187505A true CN108187505A (en) | 2018-06-22 |
Family
ID=62590708
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|---|---|---|---|
| CN201810074264.XA Pending CN108187505A (en) | 2018-01-25 | 2018-01-25 | A kind of waterproof and breathable composite membrane |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546716A (en) * | 2020-06-02 | 2020-08-18 | 江苏科德宝建筑节能科技有限公司 | High-strength waterproof breathable composite film |
| CN112211004A (en) * | 2020-08-18 | 2021-01-12 | 果尔佳建筑产业有限公司 | Waterproof breathable film and preparation method thereof |
| CN114405285A (en) * | 2022-02-07 | 2022-04-29 | 北京师范大学 | Waterproof breathable film and preparation method and application thereof |
| CN114452841A (en) * | 2021-12-08 | 2022-05-10 | 中国石油大学(华东) | PVDF/PDMS @ TiO2Preparation method of self-cleaning micro-nano filter membrane |
-
2018
- 2018-01-25 CN CN201810074264.XA patent/CN108187505A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546716A (en) * | 2020-06-02 | 2020-08-18 | 江苏科德宝建筑节能科技有限公司 | High-strength waterproof breathable composite film |
| CN112211004A (en) * | 2020-08-18 | 2021-01-12 | 果尔佳建筑产业有限公司 | Waterproof breathable film and preparation method thereof |
| CN114452841A (en) * | 2021-12-08 | 2022-05-10 | 中国石油大学(华东) | PVDF/PDMS @ TiO2Preparation method of self-cleaning micro-nano filter membrane |
| CN114405285A (en) * | 2022-02-07 | 2022-04-29 | 北京师范大学 | Waterproof breathable film and preparation method and application thereof |
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Application publication date: 20180622 |