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CN111136971B - A composite material - Google Patents

A composite material Download PDF

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Publication number
CN111136971B
CN111136971B CN202010048070.XA CN202010048070A CN111136971B CN 111136971 B CN111136971 B CN 111136971B CN 202010048070 A CN202010048070 A CN 202010048070A CN 111136971 B CN111136971 B CN 111136971B
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CN
China
Prior art keywords
composite material
layer
pet
ink
graphene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010048070.XA
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Chinese (zh)
Other versions
CN111136971A (en
Inventor
尤晶
尤龙飞
李洪喜
孟山青
王霜
王蕾
刘纯鑫
孙中仪
吴红文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huaqing Cair Air Cleaning Technology Co ltd
Original Assignee
Beijing Huaqing Cair Air Cleaning Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Huaqing Cair Air Cleaning Technology Co ltd filed Critical Beijing Huaqing Cair Air Cleaning Technology Co ltd
Priority to CN202010048070.XA priority Critical patent/CN111136971B/en
Publication of CN111136971A publication Critical patent/CN111136971A/en
Application granted granted Critical
Publication of CN111136971B publication Critical patent/CN111136971B/en
Active legal-status Critical Current
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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • 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
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明公开了一种复合材料，包括PET基材，在所述PET基材内设有具有导电性的材料。该材料克服了用传统金属体做净化单元安全性差、臭氧量高、易被氧化腐蚀、生产成本高、不能形成自清洁免维护功能等缺点。

The invention discloses a composite material, comprising a PET substrate, in which a conductive material is arranged. The composite material overcomes the disadvantages of using a traditional metal body as a purification unit, such as poor safety, high ozone content, easy oxidation corrosion, high production cost, and inability to form a self-cleaning and maintenance-free function.

Description

Composite material
Technical Field
The invention relates to the technical field of air purification, in particular to a composite material which can be applied to a purification unit for removing particles in air.
Background
At present, an air purification technology for removing particles in air is electrostatic purification, and by charging the particles in the air, the charged particles pass through a purification unit made of conductive materials along with the air, and the particles are adsorbed by an electric field formed by the purification unit. Such conductive materials are usually metal materials, but the use of metal materials as purification units has the disadvantages of poor safety, high ozone content, susceptibility to oxidation corrosion, high production cost, etc., so that it is necessary to provide an alternative material to overcome the disadvantages of using metal materials as purification units.
PET, english full name polyethylene terephthalate, polyethylene terephthalate with chemical formula of [ COC6H4COOCH2CH2O ] n, polyethylene terephthalate, polyester, polyethylene terephthalate, dacron, etc. PET is a milky or pale yellow, highly crystalline polymer with a smooth, glossy surface. Has good mechanical properties, impact strength which is 3-5 times that of other films, and good folding endurance. Oil resistance, fat resistance, olefine acid resistance, dilute alkali resistance, most solvents resistance, normal use at-70 ℃ to 60 ℃, small influence on the mechanical properties at high and low temperatures, low gas and water vapor permeability, excellent gas, water, oil and peculiar smell resistance, high transparency, ultraviolet resistance, good glossiness, no toxicity, no smell, good sanitation and safety, and direct use for food packaging.
PE (polyethylene), polyethylene and plastic are polymers polymerized by ethylene, and the polyethylene is a white waxy semitransparent material, is soft and tough, is lighter than water, is nontoxic, has excellent dielectric property and low temperature resistance, has a minimum use temperature of-100 to-70 ℃, has good chemical stability and can resist the corrosion of most acid and alkali.
Graphene has excellent optical, electrical and mechanical properties, has important application prospects in the aspects of material science, micro-nano processing, energy sources, biomedicine, drug delivery and the like, and is considered as a revolutionary material in the future. Scientists have found that graphene is also currently known to be a material with excellent electrical conductivity. The graphene can be represented on a printing stock by printing or spray painting.
The ink is used for printing important materials, and patterns and characters are displayed on a printing stock through printing or spray painting. The ink comprises main components and auxiliary components, and the main components and the auxiliary components are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. Comprises a binder (resin), pigment, filler, auxiliary agent, solvent and the like. The printing ink is used for various printing of books and periodicals, package decoration, building decoration, electronic circuit boards and the like. The density of the ink was between 1g/cm 3 and 2.25g/cm 3.
Disclosure of Invention
The invention aims to provide a composite material which replaces the metal material of the existing purifying unit and overcomes the defects of the metal material.
In order to achieve the above object, an embodiment of the present invention provides a composite material, including a PET substrate, in which a material having conductivity is disposed.
Further, the material with conductivity is conductive ink or graphene.
Further, the resistivity of the composite material is 0.0025 to 3 (Ω·m).
Further, the density of the composite material is 950-2200kg/m 3.
Further, the PET substrate is a belt-shaped body.
Further, the overall thickness of the composite material is 0.2-5mm.
Further, the width of the composite material is 5-500mm.
Further, the thickness of the ink and the graphene is 0.02-2mm.
Further, the width of the layer formed by the ink and the graphene in the strip body is 0.5-490mm.
Further, the PET substrate is formed by hot pressing two PET strips, wherein at least one strip is internally provided with conductive ink or graphene.
Further, the hot pressing temperature is 90-250 ℃ and the pressure is 0.5-800 MPa.
Further, a PE layer is also arranged between the two PET strips.
Further, the thickness of the PE layer is 0.02-1mm.
Further, the ink layer or the graphene layer is provided in plurality inside the PET substrate.
Further, the interval between the ink layers or the graphene layers is 1-50mm.
Further, a glue layer is arranged between the PET substrate with the ink layer or the graphene layer and the other PET substrate.
Further, an ink layer or a graphene layer, a glue layer, a PE layer and a glue layer are sequentially arranged between the PET substrate on one side and the PET substrate on the other side, wherein the ink layer or the graphene layer can be multiple.
Compared with the prior art, the invention has the beneficial effects that the PET belt-shaped body is used as a base material, the conductive material such as ink is embedded in the belt-shaped PET material to be compounded, the composite material has a conductive function, and the purifying unit made of the composite material can be widely applied to the fields of heating ventilation air conditioning and air purification, and has the advantages of simple structure, high strength, aging resistance, oxidation resistance and corrosion resistance. The composite material overcomes the defects that the traditional metal body is used as a purifying unit, the safety is poor, the ozone is high, the purifying unit is easy to oxidize and corrode, the production cost is high, and the like, the purifying unit formed by the composite material can also realize a self-cleaning maintenance-free function, the self-cleaning can automatically clean particles accumulated on the purifying unit regularly and transfer the particles to a dust collecting device, and meanwhile, the composite material has the property of resisting higher voltage and current, so that the purifying unit formed by the composite material has higher purifying efficiency, stronger usability and wider application range.
Drawings
FIG. 1 is a schematic side view of a composite material according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 at a conductive ink layer;
FIG. 3 is a schematic side view of another embodiment of a composite material;
FIG. 4 is a schematic side view of another embodiment of a composite material;
the cross-sectional view of the composite is the same in the three embodiments, with the cross-section taken from the conductive ink;
In the figure, 1 is a PET strip body, 3 is a conductive ink layer, 3 is a glue layer, and 4 is a PE layer.
Detailed Description
The principles and spirit of the present invention will be described below with reference to several exemplary embodiments shown in the drawings. It should be understood that these embodiments are merely described to enable those skilled in the art to better understand and to practice the invention and are not intended to limit the scope of the invention in any way.
Referring to fig. 1, in the composite material provided by the embodiment of the invention, a belt-shaped body is adopted, and the belt-shaped body can form a purifying unit with a filtering function according to a certain mode. For example, the strip body can form a purification unit with a disc-shaped structure in a winding manner, gaps for air to flow through exist between the strip body and the strip body in the purification unit with the disc-shaped structure, when air to be purified flows through the purification unit along the vertical direction of the disc surface of the disc-shaped structure, the air passes through the gaps, charged particles in the air are adsorbed on the strip body, and then the air can be automatically cleaned by the self-cleaning device, so that the self-cleaning maintenance-free function is realized. The strip bodies can be arranged in parallel to form a rectangular structure, gaps for gas to flow through are formed between the adjacent strip bodies, and then the strip bodies can be automatically cleaned by the self-cleaning device to realize the self-cleaning maintenance function, and the gas purifying process is the same as the principle.
Of course, while the present application is illustrated with a ribbon as an example of a composite material, it should be understood that other geometries may be employed for the composite material.
In this embodiment, the composite material includes a PET base material as the base material, and the form of PET tape 1 is adopted as the main body portion of the composite material. In the example of fig. 1, the PET tape 1 has two upper and lower strips, and the conductive ink is provided on the inner side of the upper one, but this is only an example, and the conductive ink may be provided on the inner side of the lower one. In addition, the conductive ink layers may be disposed on the inner side of the upper PET tape and the inner side of the lower PET tape, respectively (i.e., when there are 2 or more conductive ink layers, one or more conductive ink layers may be disposed on the inner side of the upper PET tape, and the rest of the conductive ink layers may be disposed on the inner side of the lower PET tape to form a composite material having conductive properties together), which falls within the scope of the present invention. In this embodiment, the conductive ink layer 2 is formed on the inner side of the PET tape 1, and further, a glue layer 3 is further disposed on the inner side of the conductive ink layer 2, and the glue layer 3 is used for bonding the conductive ink layer 2 and the inner side of another PET tape 1, and the glue layer 3 may be formed on the inner side of the PET tape 1 by glue coating (as described below). It should be noted that in various embodiments of the present invention, the conductive ink may be replaced with other conductive materials, such as graphene. The conductive ink layer described in the various embodiments may also be a graphene layer.
The conductive ink layer 2 may be provided at intervals one or more inside the PET tape 1. For example, in some embodiments, the conductive ink layer 2 is located substantially in the middle of the PET tape 1, and in other embodiments, the conductive ink layer 2 is located substantially in the lower portion of the PET tape 1. In some embodiments, adjacent two conductive ink layers 2 are offset a distance in the thickness direction of the PET tape 1. In other embodiments, each conductive ink layer 2 is in the same plane within the PET tape 1. The number of the conductive ink layers 2 is not limited either, and may be one (as in fig. 1) or a plurality (as in fig. 2 and 3). A PE layer 4 is also clamped between the two PET strips 1, and in the production process, PE can increase the cohesiveness between PET after melting, and the structure after material molding is tighter and firmer. (as described below). Due to the existence of the adhesive layer 3, the bonding between PE and PET materials is increased in production, the bonding between PE and PET and surface ink thereof is increased, and the bonding strength is improved in material molding.
The resistivity of the whole composite material is 0.0025-3 (omega.m). The thickness of the whole composite material can be 0.2-5mm, the density is 950-2200kg/m 3, and the width is 5-500mm. The conductive ink layer has a thickness of 0.02-2mm, a density of 1000-2250kg/m 3, and a width of 0.5-490mm, and may be provided in plural. When the ink layers are arranged, the interval between the ink layers can be 1-50mm, the ink layers can be cut at intervals according to the requirement, the ink layers are prevented from being exposed in the air, the purifying units with different widths can be formed, and meanwhile, the purifying units with different electric field intervals can be formed by arranging the ink layers.
The PE layer has a thickness of 0.02-1mm and a density of 910-970.8kg/m 3.
The composite material is mainly formed by carrying out hot pressing treatment on two layers of PET belts. The two PET belts are respectively wound on a shaft, conductive ink (or a plurality of conductive ink) with certain width and thickness is printed on one layer of PET belt, then special glue with certain width and thickness is smeared on one side printed with the conductive ink, meanwhile, the two PET belts are combined with the other layer of PET belt coated with the special glue with certain width and thickness (the two PET belts have the same belt width and the same thickness are preferred and can also be different), a thin PE layer (more particularly, the two glue layers can be arranged between the two glue layers) is sandwiched between the two PET belts, and by providing a device with certain temperature and pressure (in the embodiment, the hot pressing temperature is 90-250 ℃ and the pressure is 0.5-800 MPa), the two PET belts can be closely combined together through complex heat treatment and pressure treatment, PE plays a role in bonding, promotes the combination of the two PET belts, then the two PET belts are cooled down and formed through lamination, the composite materials of the whole roll after the forming are processed through pressure reduction, and cutting of the composite materials with different widths according to requirements. Of course, it is within the scope of the present invention to form composite materials of such construction using other processes.
Specific examples are set forth herein to illustrate the invention in detail, and the description of the above examples is only for the purpose of aiding in understanding the core concept of the invention. It should be noted that any obvious modifications, equivalents, or other improvements to those skilled in the art without departing from the inventive concept are intended to be included in the scope of the present invention.

Claims (6)

1. The composite material for the purification unit for removing the particulate matters in the air is characterized by comprising a PET substrate, wherein the PET substrate is a strip-shaped body, the PET substrate comprises an upper strip and a lower strip, conductive ink or graphene is arranged on the inner side of the upper strip of the PET substrate to form an ink layer or a graphene layer, a plurality of ink layers or graphene layers are cut at intervals to form purification units with different widths, the width of the composite material is 5-500mm, the width of a layer formed by the ink and the graphene in the strip-shaped body is 0.5-490mm, and an ink layer or a graphene layer, a glue layer wrapping the ink layer or the graphene layer, a PE layer and a glue layer are sequentially arranged between the upper strip of the PET substrate and the lower strip of the PET substrate.
2. The composite material for use in a purification unit for removing particulate matter from air of claim 1, wherein the electrical resistivity of the composite material is 0.0025 to 3 (Ω -m).
3. The composite material for use in a purification unit for removing particulate matter from air of claim 1, wherein the density of the composite material is 950-2200kg/m 3.
4. The composite material for use in a purification unit for removing particulate matter from air of claim 1, wherein the composite material has an overall thickness of 0.2-5mm.
5. The composite material applied to the purification unit for removing the particulate matters in the air according to claim 1, wherein the thickness of the ink and the graphene is 0.02-2mm.
6. The composite material for use in a purification unit for removing particulate matter from air according to claim 1, wherein the PE layer has a thickness of 0.02-1mm.
CN202010048070.XA 2020-01-16 2020-01-16 A composite material Active CN111136971B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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CN111136971B true CN111136971B (en) 2025-01-07

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CN208506724U (en) * 2018-08-14 2019-02-15 深圳市超导新材料有限公司 A kind of graphene touch display panel

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CN208506724U (en) * 2018-08-14 2019-02-15 深圳市超导新材料有限公司 A kind of graphene touch display panel

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