CN103897369A - Polycarbonate film for flexible or thin-film solar cells and preparation method thereof - Google Patents

Polycarbonate film for flexible or thin-film solar cells and preparation method thereof Download PDF

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Publication number
CN103897369A
CN103897369A CN201210589006.8A CN201210589006A CN103897369A CN 103897369 A CN103897369 A CN 103897369A CN 201210589006 A CN201210589006 A CN 201210589006A CN 103897369 A CN103897369 A CN 103897369A
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Prior art keywords
polycarbonate
thin
film
solar cells
film solar
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CN201210589006.8A
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Chinese (zh)
Inventor
张迎晨
吴红艳
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Zhongyuan University of Technology
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Zhongyuan University of Technology
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Priority to CN201210589006.8A priority Critical patent/CN103897369A/en
Publication of CN103897369A publication Critical patent/CN103897369A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The invention relates to a polycarbonate film for flexible or thin-film solar cells and a preparation method thereof. The film is prepared from the following components in parts by weight: 100 parts of polycarbonate and 0.0001-0.1 part of nano aluminum powder. The preparation method comprises the following steps: uniformly stirring and blending the polycarbonate and nano aluminum powder according to the formula at -10-40 DEG C by using a stirrer; and introducing the blend into a screw mixing extruder to perform blending and extrusion while controlling the temperature at 130-290 DEG C, filtering the extrudate, carrying out metering extrusion, running, cooling, drawing, pulling, compounding with a release film, and coiling to obtain the photocuring polycarbonate film for flexible or thin-film solar cells. The product is attached to the photic surface of the thin-film solar cell or used as an upper packaging film of the solar cell to directly enhance the generating efficiency of the flexible or thin-film solar cell.

Description

A kind of flexibility or thin-film solar cells polycarbonate membrane and preparation method thereof
Technical field
The present invention relates to a kind of flexibility or thin-film solar cells photocuring polycarbonate membrane and preparation method thereof, by using this film to be encapsulated in the surface of flexibility or thin-film solar cells incidence surface, directly improve the efficiency of flexibility or thin-film solar cells.
Background technology
Polycarbonate (PC) is the high molecular polymer that contains carbonate group in molecular chain, can be divided into the broad varietys such as aliphatics, aromatic series, aliphatic-aromatic according to the structure of ester group.Wherein because the mechanical property of aliphatics and aliphatic-aromatic polycarbonate is lower, thereby limit its application aspect engineering plastics.Only have at present that aromatic copolycarbonate obtains suitability for industrialized production.Due to the singularity on polycarbonate structure, polycarbonate is a kind of amorphous, odorless, tasteless, nontoxic and transparent thermoplastic polymer, it is unique plastics variety with good transparency, there is good physical strength, resistance toheat, ultraviolet light resistant and resistance to electric over-all properties, impact strength is high, creep properties is little, product size is stable, easily strengthen, non-toxic sanitary, can be painted, have good property/valency than and can chemically modified physics modification potentiality, it is excellent combination property, purposes is important engineering plastics kind very widely, due to its outstanding performance, the purposes of polycarbonate is very extensive, especially more play irreplaceable effect in transparent material field, now become the fastest general engineering plastic of rate of growth in five large-engineering plastics.
Effectively utilizing in the middle of project of sun power: solar photovoltaic utilization is research field with fastest developing speed in the last few years, most active.The making of general solar cell is mainly taking semiconductor material as basis, opto-electronic conversion reaction generating occurs after utilizing photoelectric material to absorb luminous energy.According to the difference of material therefor, solar cell can be divided into: 1, silicon solar cell; 2, taking inorganic salt if the multi-element compounds such as gallium arsenide III-V compound, Cadmium Sulfide, copper indium diselenide are as the solar cell of material; 3, the solar cell of preparing with functional high molecule material; 4, nano-crystalline solar battery etc.
What prior art working efficiency was the highest is taking III-V family semiconductor inorganic materials as raw-material product.For example: the quantum well of the single junction type of gallium arsenide/germanium falls into crystal structure, and its photoelectric transformation efficiency can reach >18 %; For example, and multiple junction quantum well falls into the solar cell of crystal structure: InGaP/gallium arsenide/germanium, its photoelectric transformation efficiency can be up to >30 %.Most widely used at present, taking silicon as main: comprise non-crystalline silicon, photoelectric transformation efficiency approximately 9 %; Polysilicon, photoelectric transformation efficiency approximately 14 %; Silicon single crystal, photoelectric transformation efficiency approximately 17 %.Although in price, VI family elements Si is more cheap than III-V family semiconductor GaAs, the price of its manufacture, compared with polymer organic solar batteries, or expensive many; And in application, the light weight again overall plasticization organic solar batteries of the anxiety of crack-free can be realized via the processing of printing, except price reduces, be more suitable for the demand of portable electronic product, and indoor or cloudyly all can normally use (this is that siliceous solar cell is beyond one's reach), its practicality and market application range are promoted more.
Solar cell is a gordian technique, can advance more clean Energy production.But the Cost Problems of solar cell, has reduced the economic competitiveness of heliotechnics.For overcoming this problem, thin-film solar cells is the technology of current widespread use, can reduce in a large number the usage quantity of expensive semiconductor material, but the absorbing amount of thin-film solar cells is lower, and Performance Ratio is not gone up traditional solar cell.
Thin-film solar module is to be made up of glass substrate, metal level, transparency conducting layer, electrical function box, glueing material, semiconductor layer etc.Organic and inorganic composite solar battery is the solar cell based on organic conjugate polymer-inorganic nano-crystal composite system, because of while tool organic polymer material good film-forming property, level structure and band gap are easy to regulate, can prepare low cost, big area, flexible solar battery device and inorganic nano-crystal material high stability by wet method, high mobility, can construct the advantages such as ordered nano-structure, and become the study hotspot of area of solar cell in recent years.Metal nanoparticle can direct light enter solar cell better, prevents light escape.In traditional " thick film " solar cell, nanoparticle does not have any effect, is all by this film because all light absorbs, and this just relies on its thickness.But for film, nanoparticle just can be brought into play great role.Their scattering has increased light and has rested on the time in film, makes the light of overall absorption reach a kind of level, and traditional solar cell can match in excellence or beauty.
Aluminium and Nano silver grain are in the frequency spectrum of visible part, and focused ray enters solar cell well.But optical resonance also can cause nanoparticle absorb light, this efficiency that just means solar cell can be lower.Nano grain of silver sub-resonance is just in time in the crucial absorption spectrum part of solar cell, so the absorption of light is appreciable.Aluminum nanoparticles resonance has exceeded the crucial spectra part of solar cell.Loss to energy is less, and in addition, aluminum particulate is easy to passivation, although can change shape and size, after passivation, nanoparticle attribute change is very little.Nanoparticle has rough surface, and scattered beam can enter wide spectrum wavelength region more.This can bring larger absorption, thereby improves the whole efficiency of battery.Summary of the invention
The object of this invention is to provide a kind of flexibility or thin-film solar cells polycarbonate membrane and preparation method thereof, by using this film to be encapsulated in the surface of flexibility or thin-film solar cells incidence surface, directly improve the efficiency of flexibility or thin-film solar cells.And tool has self-cleaning effect through flexibility or the thin-film solar cells of encapsulation.
For achieving the above object, the technical solution used in the present invention is as follows:
Flexibility of the present invention or thin-film solar cells polycarbonate membrane, it is made up of the following component of following weight parts: polycarbonate resin 100; Nanometer aluminium powder 0.0001-0.1.
Described polycarbonate is aliphatics, aromatic series, aliphatic-aromatic polycarbonate.Be preferably aromatic copolycarbonate.
The present invention's polycarbonate resin used is all purchased from commercially available, such as the trade mark is that 2458,2805,2858,2605,6555,6485,2405,2407,2807,2865,3103,3105(Bayer Bitterfeld GmbH is produced); The trade mark is 9920, AD-5503, L-1225Y, L-1250Z, L-1250Y, L-1225L, L-1250L(Japan Supreme Being people); The trade mark is: 153R-111, HF1130-111,241R-111,243R-111,500R-739,940A-116,945A(U.S. GE(SABIC)) etc.
Flexibility of the present invention or thin-film solar cells polycarbonate membrane, comprise the steps:
(1) by the polycarbonate of formula ratio; Nanometer aluminium powder; Even by agitator blended under agitation under-10 ~ 40 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 130 ~ 290 DEG C, extrudate after filtration, metering extrudes, curtain coating, cooling, drawing-off, traction, release film are compound, coiling process, obtains flexibility or thin-film solar cells photocuring polycarbonate membrane.
This encapsulation film as solar cell widespread use of polycarbonate membrane, for adapting to above industrial requirement, we have invented nanometer aluminium powder modification photocuring polycarbonate membrane.This film both can be used in the backlight place of thin-film solar cells, also can be used in the light inlet film surface of thin-film solar cells, also can be used in the middle layer of thin-film solar cells simultaneously, improved the efficiency of light absorption of solar cell.Improve the generating efficiency of solar cell.
Nano metal aluminum particulate is easy to passivation, although can change shape and size, after passivation, nanoparticle attribute change is very little.Nanoparticle has rough surface, and scattered beam can enter wide spectrum wavelength region more.This can bring larger absorption, thereby improves the whole efficiency of battery.The scattering of metallic aluminium nanoparticle has increased light and has rested on the time in film, makes the light of overall absorption reach a kind of level, and traditional solar cell can match in excellence or beauty.Through using the thin-film solar cells of film processing of the present invention to improve 3-15% than the thin-film solar cells performance without the processing of this film.Thin-film solar cells is used after this film, and metallic aluminium nanoparticle can direct light enter solar cell preferably, prevents light escape.Solve in traditional " thick film " solar cell, nanoparticle does not have any effect and all essential problems that relies on thickness solution of light absorption.
Embodiment
Embodiment 1
(1) by polycarbonate 100 Kg; Nanometer aluminium powder 0.0001-0.1 Kg; Even by agitator blended under agitation under-10 ~ 40 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 130 ~ 290 DEG C, extrudate through 120 order strainers filter, measure and extrude (volume pump turnover pressure difference 2MPa), casting machine curtain coating 50UM thick film, 10 degree air coolings, 2 times of degree of draft drawing-offs, traction, compounding machine release film compound, without operations such as pulling reel batch, obtain flexibility or thin-film solar cells photocuring polycarbonate membrane.
Embodiment 2
(1) by polycarbonate (PC2805 Bayer Bitterfeld GmbH) 100 Kg; Nanometer aluminium powder 0.0001Kg; Even by agitator blended under agitation under-10 ~ 0 DEG C of temperature environment;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 185 DEG C, extrudate through 120 order strainers filter, measure and extrude (volume pump turnover pressure difference 2MPa), casting machine curtain coating 50UM thick film, 10 degree air coolings, 2 times of degree of draft drawing-offs, traction, compounding machine release film compound, without operations such as pulling reel batch, obtain flexibility or thin-film solar cells photocuring polycarbonate membrane.
Embodiment 3
(1) by polycarbonate (2458, Bayer Bitterfeld GmbH) 100 Kg; Nanometer aluminium powder 0.1 Kg; Even by agitator blended under agitation under-10 ~ 40 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 130 ~ 140 DEG C of degree, extrudate through 120 order strainers filter, measure and extrude (volume pump turnover pressure difference 2MPa), casting machine curtain coating 50UM thick film, 10 degree air coolings, 2 times of degree of draft drawing-offs, traction, compounding machine release film compound, without operations such as pulling reel batch, obtain flexibility or thin-film solar cells photocuring polycarbonate membrane.
Embodiment 4
(1) by polycarbonate (9920, Japanese Supreme Being people) 100 Kg; Nanometer aluminium powder 0.005Kg; Even by agitator blended under agitation under 30 ~ 40 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 280 ~ 290 DEG C, extrudate through 120 order strainers filter, measure and extrude (volume pump turnover pressure difference 2MPa), casting machine curtain coating 50UM thick film, 10 degree air coolings, 2 times of degree of draft drawing-offs, traction, compounding machine release film compound, without operations such as pulling reel batch, obtain flexibility or thin-film solar cells photocuring polycarbonate membrane.
Embodiment 5
(1) by polycarbonate (153R-111, U.S. GE(SABIC)) 100 Kg; Nanometer aluminium powder 0.05 Kg; Even by agitator blended under agitation under 15 ~ 20 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 180 ~ 220 DEG C, extrudate through 120 order strainers filter, measure and extrude (volume pump turnover pressure difference 2MPa), casting machine curtain coating 50UM thick film, 10 degree air coolings, 2 times of degree of draft drawing-offs, traction, compounding machine release film compound, without operations such as pulling reel batch, obtain flexibility or thin-film solar cells photocuring polycarbonate membrane.

Claims (4)

1. flexibility or a thin-film solar cells polycarbonate membrane, is characterized in that, it is made up of the following component of following weight parts: polycarbonate resin 100; Nanometer aluminium powder 0.0001-0.1.
2. flexibility according to claim 1 or thin-film solar cells polycarbonate membrane, is characterized in that: described polycarbonate is that polycarbonate is aliphatics, aromatic series, aliphatic-aromatic polycarbonate.
3. flexibility according to claim 1 or thin-film solar cells polycarbonate membrane, is characterized in that: described polycarbonate is aromatic copolycarbonate.
4. flexibility claimed in claim 1 or thin-film solar cells polycarbonate membrane, is characterized in that, comprises the steps:
(1) by the polycarbonate of formula ratio; Nanometer aluminium powder; Even by agitator blended under agitation under-10 ~ 40 DEG C of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 130 ~ 290 DEG C, extrudate after filtration, metering extrudes, curtain coating, cooling, drawing-off, traction, release film are compound, coiling process, obtains flexibility or thin-film solar cells photocuring polycarbonate membrane.
CN201210589006.8A 2012-12-31 2012-12-31 Polycarbonate film for flexible or thin-film solar cells and preparation method thereof Pending CN103897369A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104861629A (en) * 2015-05-19 2015-08-26 苏州奥美材料科技有限公司 Polycarbonate film and preparation method thereof
CN110698838A (en) * 2019-10-30 2020-01-17 濮阳市盛通聚源新材料有限公司 Flexible conductive film based on polycarbonate and preparation method thereof

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS5120245A (en) * 1974-08-12 1976-02-18 Teijin Chemicals Ltd Taikoseifuirumuno seizoho
CN102292830A (en) * 2008-11-24 2011-12-21 纳幕尔杜邦公司 Solar cell modules comprising an encapsulant sheet of an ethylene copolymer
CN102664208A (en) * 2012-05-09 2012-09-12 华东理工大学 Synergistic heat radiation solar cell assembly and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120245A (en) * 1974-08-12 1976-02-18 Teijin Chemicals Ltd Taikoseifuirumuno seizoho
CN102292830A (en) * 2008-11-24 2011-12-21 纳幕尔杜邦公司 Solar cell modules comprising an encapsulant sheet of an ethylene copolymer
CN102664208A (en) * 2012-05-09 2012-09-12 华东理工大学 Synergistic heat radiation solar cell assembly and preparation method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104861629A (en) * 2015-05-19 2015-08-26 苏州奥美材料科技有限公司 Polycarbonate film and preparation method thereof
CN110698838A (en) * 2019-10-30 2020-01-17 濮阳市盛通聚源新材料有限公司 Flexible conductive film based on polycarbonate and preparation method thereof
CN110698838B (en) * 2019-10-30 2021-11-02 濮阳市盛通聚源新材料有限公司 Flexible conductive film based on polycarbonate and preparation method thereof

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Application publication date: 20140702