CN107142777A - A kind of composite polyimide material and preparation method thereof - Google Patents
A kind of composite polyimide material and preparation method thereof Download PDFInfo
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- CN107142777A CN107142777A CN201710467409.8A CN201710467409A CN107142777A CN 107142777 A CN107142777 A CN 107142777A CN 201710467409 A CN201710467409 A CN 201710467409A CN 107142777 A CN107142777 A CN 107142777A
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- composite
- polyimides
- fiber paper
- polyamic acid
- polyimide
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/30—Polyamides; Polyimides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
- H01B3/52—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials wood; paper; press board
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of composite polyimide material and preparation method thereof, is related to fire retardant insulating field of compound material, and solve that existing aramid paper and polyester film compound material be present is also easy to produce secondary pollution, the problem of temperature resistant grade is low, hygroscopicity is big.A kind of composite polyimide material of the present invention, is to handle what is be prepared from by salivation or coating processes, then through imidization processing and high temperature pressure roller hot pressing ornamenting by polyimide fiber paper and polyamic acid glue.The present invention, without using adhesive, reduces secondary pollution in preparation process, saves the energy.The characteristics of composite polyimide material of the present invention has high temperature resistant, high pressure resistant, hygroscopicity is small; can the long-term work at 220 DEG C; good insulation preformance, mechanical strength are good, high purity, plyability high, will not produce aliquation phenomenon, can be good at protecting the operation of electrical apparatus insulation equipment.
Description
Technical field
The present invention relates to fire retardant insulating technical field of composite materials, and in particular to a kind of composite polyimide material and its system
Preparation Method.
Background technology
Slot insulation, layer insulation, turn-to-turn insulation and the most of use of pad insulation of current motor, transformer and electrical equipment etc.
Aramid paper and polyester film are composited, and this combination process needs first to be coated with adhesive on aramid paper, then dry composite, plus
Secondary pollution is easily produced during work, and the composite produced can not accomplish high temperature resistant (more than 220 DEG C), and
Its performance is easily influenceed by weather condition etc., and hygroscopicity is big.
The content of the invention
In order to solve that existing aramid paper and polyester film compound material be present be also easy to produce secondary pollution, temperature resistant grade it is low,
The problem of hygroscopicity is big, the present invention provides a kind of composite polyimide material and preparation method thereof.
The present invention is as follows to solve the technical scheme that technical problem is used：
A kind of composite polyimide material of the present invention, it is to pass through stream by polyimide fiber paper and polyamic acid glue
Saliva or coating processes, then be prepared from through imidization processing and high temperature pressure roller hot pressing ornamenting processing.
Present invention also offers a kind of above-mentioned preparation method of composite polyimide material, comprise the following steps：
Step 1: polyimide fiber paper is manufactured paper with pulp；
Gather Step 2: being formed polyamic acid glue-coating on polyimide fiber paper using the method for salivation or coating
Amic acid glued membrane, then this polyimide fiber paper and polyamic acid glued membrane are subjected to imidization processing, temperature is 40~300 DEG C,
The thickness of control polyamic acid glued membrane obtains polyimide fiber paper and polyimides in 0.025~0.05mm in the process
The compound of film, thickness is 0.075~0.45mm；
Being handled Step 3: carrying out high temperature pressure roller hot pressing ornamenting to above-mentioned compound, temperature is 50~350 DEG C, speed is 2~
40m/min, obtains polyimides fire retardant insulating composite.
As preferred embodiment, the detailed process of step one is：Raw material is disperseed, through press dewatering, drying, height
Polyimide fiber paper is obtained after temperature and pressure light imidization processing；The raw material is that polyimides chopped strand or polyimides are chopped
The mixture of fiber and polyimides fibrid.
As preferred embodiment, in step 2, the thickness of polyamic acid glued membrane is 0.025mm.
As preferred embodiment, in step 2, temperature is 40~200 DEG C.
As preferred embodiment, in step 3, temperature is 200 DEG C.
Present invention also offers the preparation method of another composite polyimide material, comprise the following steps：
Step 1: polyimide fiber paper is manufactured paper with pulp；
Step 2: using salivation or coating method by polyamic acid glue-coating the shape on a polyimide fiber paper
Imidization processing is carried out into polyamic acid glued membrane, then by this polyimide fiber paper and polyamic acid glued membrane, temperature is 40~300
DEG C, the thickness of polyamic acid glued membrane is controlled in the process in 0.025~0.05mm, obtains polyimide fiber paper sub- with polyamides
The compound of amine film, thickness is 0.075~0.45mm；
Step 3: it is whole that another polyimide fiber paper is carried out into high temperature pressure roller hot pressing together with the compound of above-mentioned acquisition
Decorations processing, temperature is 50~350 DEG C, and speed is 2~40m/min, and the polyimides fire retardant insulating softness for obtaining the present invention is compound
Material.
As preferred embodiment, the detailed process of step one is：Raw material is disperseed, through press dewatering, drying, height
Polyimide fiber paper is obtained after temperature and pressure light imidization processing；The raw material is that polyimides chopped strand or polyimides are chopped
The mixture of fiber and polyimides fibrid.
As preferred embodiment, in step 2, the thickness of polyamic acid glued membrane is 0.05mm.
As preferred embodiment, in step 3, temperature is 200 DEG C.
The beneficial effects of the invention are as follows：A kind of composite polyimide material of the present invention, is a kind of fire retardant insulating composite wood
Material, its be by polyimide fiber paper and polyamic acid glue by salivation or coating processes, then by imidization processing and
High temperature pressure roller hot pressing ornamenting processing is prepared from.The present invention compared with prior art, with advantages below：
1st, without using adhesive during composite polyimide material is prepared, secondary pollution is reduced, the energy is saved.
2nd, due to having used polyimide fiber paper in preparation process, prepared composite polyimide material heatproof is made
Grade is increased substantially, and heat resistance is good, can the long-term work at 220 DEG C, and make prepared polyimides composite wood
Expect that hygroscopicity is smaller.
3rd, composite polyimide material of the invention has high voltage bearing feature, breakdown voltage >=10KV.
4th, composite polyimide material good insulation preformance of the invention, plyability are high, will not produce aliquation phenomenon, can be very
The operation of good protection electrical apparatus insulation equipment.
5th, composite polyimide material dielectric properties of the invention are excellent, while having good mechanical strength, degree of purity
Height, without sicker, 100% polyimides can extend the service life of electrical equipment.
6th, composite polyimide material dielectric loss of the invention is low, it is adaptable to various harsh environments.
Embodiment
A kind of composite polyimide material of the present invention, is a kind of fire retardant insulating composite.It is fine by polyimides
Paper and polyamic acid glue are tieed up by salivation or coating processes, then is handled by imidization processing and high temperature pressure roller hot pressing ornamenting
It is prepared from, adhesive need not be coated with preparation process, secondary pollution is reduced.
The invention provides a kind of preparation method of composite polyimide material, it is mainly included the following steps that：
Step 1: polyimide fiber paper is manufactured paper with pulp
Raw material is carried out effectively to disperse, after press dewatering, drying, high temperature press polish imidization processing, polyimides is obtained
Fibrous paper.
In this step, the raw material used is polyimides chopped strand or polyimides chopped strand and polyimides
The mixture of fibrid, you can with individually use polyimides chopped strand, it would however also be possible to employ polyimides chopped strand with
The mixture of polyimides fibrid.
Step 2: polyamic acid glue-coating is formed into tool on polyimide fiber paper using the method for salivation or coating
There is certain thickness polyamic acid glued membrane, then this polyimide fiber paper is subjected to imines together with polyamic acid glued membrane thereon
Change handles (being heat-treated in nitrogen atmosphere), and imidization treatment temperature is 40~300 DEG C, the process handled in imidization
In, it is necessary to the thickness for controlling polyamic acid glued membrane is in the range of 0.025~0.05mm, obtain polyimide fiber paper sub- with polyamides
The compound of amine film, the thickness range of the compound is 0.075~0.45mm.In this step, without any adhesive,
Reduce secondary pollution.
Step 3: the compound of the polyimide fiber paper and Kapton to above-mentioned acquisition carries out high temperature pressure roller heat
Repoussage decorations processing, temperature is 50~350 DEG C, and speed is 2~40m/min, obtains polyimides fire retardant insulating composite.It will obtain
The polyimides fire retardant insulating composite obtained is stored in the storehouse of dried and clean, and temperature control is below 40 DEG C, away from fire
Source, thermal source, it is to avoid periods of direct sunlight.Product storage period is 1 year, and being detected again by technical requirements more than storage period qualified can still make
With.
Present invention also offers a kind of preparation method of composite polyimide material, it is mainly included the following steps that：
Step 1: polyimide fiber paper is manufactured paper with pulp
Raw material is carried out effectively to disperse, after press dewatering, drying, high temperature press polish imidization processing, polyimides is obtained
Fibrous paper.
In this step, the raw material used is polyimides chopped strand or polyimides chopped strand and polyimides
The mixture of fibrid, you can with individually use polyimides chopped strand, it would however also be possible to employ polyimides chopped strand with
The mixture of polyimides fibrid.
Step 2: using two polyimide fiber papers, using the method for salivation or coating by polyamic acid glue-coating
The polyamic acid glued membrane of different-thickness is formed on a polyimide fiber paper wherein, then by this polyimide fiber paper and its
On polyamic acid glued membrane carry out imidization processing (being heat-treated in nitrogen atmosphere) together, imidization treatment temperature is 40
~300 DEG C, it is necessary to control the thickness of polyamic acid glued membrane in the range of 0.025~0.05mm during imidization is handled,
The compound of polyimide fiber paper and Kapton is obtained, the thickness range of the compound is 0.075~0.45mm.
In this step, without any adhesive, secondary pollution is reduced.
Step 3: it is whole that another polyimide fiber paper is carried out into high temperature pressure roller hot pressing together with the compound of above-mentioned acquisition
Decorations processing, temperature is 50~350 DEG C, and speed is 2~40m/min, and the polyimides fire retardant insulating softness for obtaining the present invention is compound
Material.The polyimides fire retardant insulating composite of acquisition is stored in the storehouse of dried and clean, temperature control 40 DEG C with
Under, keep fire away, thermal source, it is to avoid periods of direct sunlight.Product storage period is 1 year, and conjunction is detected again by technical requirements more than storage period
Lattice still can be used.
A kind of composite polyimide material prepared by the preparation method of the present invention, with good mechanical performance, electricity
Gas performance, shrinkage are low, hygroscopicity is low and reliable heat resistance, and the compound material insulation performance is good, plyability is high, will not
Aliquation phenomenon is produced, can be good at protecting the operation of electrical apparatus insulation equipment.By test, polyimides composite wood of the invention
Expect that there is stronger resistance to elevated temperatures and fire resistance, energy to the high voltage of various frequencies under -190~300 DEG C of temperature conditionss
Enough ensure the tolerance of various electric products.
The preparation of the two layers of polyimide composite (zm) of embodiment 1
A kind of preparation method of composite polyimide material of the present invention, its specific preparation process is as follows：
Step 1: polyimide fiber paper is manufactured paper with pulp
Polyimides chopped strand is carried out effectively to disperse, after press dewatering, drying, high temperature press polish imidization processing,
Obtain the polyimide fiber paper (z) that thickness is 0.05mm.
Step 2: polyamic acid glue-coating is formed into polyamides on polyimide fiber paper (z) using the method for salivation
Amino acid glued membrane (m), then polyimide fiber paper and polyamic acid glued membrane are subjected to imidization processing, imidization treatment temperature together
For 40 DEG C -60 DEG C -80 DEG C -100 DEG C -120 DEG C -150 DEG C -200 DEG C -250 DEG C -300 DEG C, the mistake handled in imidization
Cheng Zhong, the thickness for controlling polyamic acid glued membrane is 0.025mm, obtains the compound of polyimide fiber paper and Kapton
(zm), the thickness of the compound is 0.075mm.
Step 3: the compound (zm) of the polyimide fiber paper and Kapton to above-mentioned acquisition carries out high-temperature high-pressure
Roller hot pressing ornamenting is handled, and temperature is 200 DEG C, and speed is 20m/min, and the polyimides fire retardant insulating softness for obtaining the present invention is compound
Material (zm).
After testing, the thickness of the polyimides fire retardant insulating composite flexible material (zm) of above-mentioned acquisition is 0.075mm, stretching
Intensity longitudinal direction >=90N/cm, tensile strength transverse direction >=60N/cm, breakdown voltage >=6KV are low with high-temperature-resistant high-pressure-resistant, shrinkage
Etc. performance.
The preparation of 2 three layers of composite polyimide material (zmz) of embodiment
A kind of preparation method of composite polyimide material of the present invention, its specific preparation process is as follows：
Step 1: polyimide fiber paper is manufactured paper with pulp
Polyimides chopped strand is carried out effectively to disperse, after press dewatering, drying, high temperature press polish imidization processing,
Obtain the polyimide fiber paper (z) that thickness is 0.05mm.
Step 2: the use of two thickness is 0.05mm polyimide fiber paper, using the method for coating by polyamide
Sour glue-coating forms polyamic acid glued membrane (m) on a polyimide fiber paper (z) wherein, then by this polyimide fiber
Paper carries out imidization processing together with polyamic acid glued membrane thereon, and imidization treatment temperature is 40 DEG C -60 DEG C -80 DEG C -
100 DEG C -120 DEG C -150 DEG C -200 DEG C imidization handle during, the thickness for controlling polyamic acid glued membrane is
0.025mm, obtains the compound (zm) of polyimide fiber paper and Kapton, the thickness of the compound is 0.075mm.
Step 3: another polyimide fiber paper (z) is carried out into high-temperature high-pressure together with the compound (zm) of above-mentioned acquisition
Roller hot pressing ornamenting is handled, and temperature is 50 DEG C, and speed is 40m/min, and the polyimides fire retardant insulating softness for obtaining the present invention is compound
Material (zmz).
After testing, the thickness of the polyimides fire retardant insulating composite flexible material (zmz) of above-mentioned acquisition is 0.13mm (general
Standard is reservation two after 0.13mm, decimal point), two layers of polyimide fibrous paper centre one strata amic acid glued membrane of folder, stretching
Intensity longitudinal direction >=120N/cm, tensile strength transverse direction >=80N/cm, breakdown voltage >=8KV, with high-temperature-resistant high-pressure-resistant, shrinkage
Low performance.
The preparation of 3 three layers of composite polyimide material (zmz) of embodiment
A kind of preparation method of composite polyimide material of the present invention, its specific preparation process is as follows：
Step 1: polyimide fiber paper is manufactured paper with pulp
Polyimides chopped strand is carried out effectively to disperse, after press dewatering, drying, high temperature press polish imidization processing,
Obtain the polyimide fiber paper (z) that thickness is 0.05mm.
Step 2: the use of two thickness is 0.05mm polyimide fiber paper, using the method for coating by polyamide
Sour glue-coating forms polyamic acid glued membrane (m) on a polyimide fiber paper (z) wherein, then by this polyimide fiber
Paper carries out imidization processing together with polyamic acid glued membrane thereon, and imidization treatment temperature is 40 DEG C -60 DEG C -80 DEG C -
100 DEG C -120 DEG C -150 DEG C -200 DEG C, during imidization is handled, the thickness for controlling polyamic acid glued membrane is
0.05mm, obtains the compound (zm) of polyimide fiber paper and Kapton, the thickness of the compound is 0.1mm.
Step 3: another polyimide fiber paper (z) is carried out into high-temperature high-pressure together with the compound (zm) of above-mentioned acquisition
Roller hot pressing ornamenting is handled, and temperature is 350 DEG C, and speed is 2m/min, and the polyimides fire retardant insulating softness for obtaining the present invention is compound
Material (zmz).
After testing, the thickness of the polyimides fire retardant insulating composite flexible material (zmz) of above-mentioned acquisition is 0.15mm, two layers
One strata amic acid glued membrane of folder, tensile strength longitudinal direction >=140N/cm, tensile strength transverse direction >=90N/ in the middle of polyimide fiber paper
Cm, breakdown voltage >=10KV, with high-temperature-resistant high-pressure-resistant, the low performance of shrinkage.
Above content is to combine the further detailed description made for the present invention of specific preferred embodiment, it is impossible to recognized
The specific implementation of the fixed present invention is confined to these explanations.For the person of ordinary skill of the art, can be according to this hair
Bright technical scheme and inventive concept, make it is corresponding change and substitute, and obtain and one of the present invention with identical Rotating fields
Composite polyimide material is planted, its performance is also inevitable identical, should all be considered as protection scope of the present invention.
Claims (10)
1. a kind of composite polyimide material, it is characterised in that it is passed through by polyimide fiber paper and polyamic acid glue
Salivation or coating processes, then be prepared from through imidization processing and high temperature pressure roller hot pressing ornamenting processing.
2. prepare a kind of method of composite polyimide material described in claim 1, it is characterised in that comprise the following steps：
Step 1: polyimide fiber paper is manufactured paper with pulp；
Step 2: polyamic acid glue-coating is formed into polyamide on polyimide fiber paper using the method for salivation or coating
Sour glued membrane, then this polyimide fiber paper and polyamic acid glued membrane are subjected to imidization processing, temperature is 40~300 DEG C, herein
During control polyamic acid glued membrane thickness in 0.025~0.05mm, obtain polyimide fiber paper and Kapton
Compound, thickness be 0.075~0.45mm；
Handled Step 3: carrying out high temperature pressure roller hot pressing ornamenting to above-mentioned compound, temperature is 50~350 DEG C, speed is 2~40m/
Min, obtains polyimides fire retardant insulating composite.
3. a kind of preparation method of composite polyimide material according to claim 2, it is characterised in that the tool of step one
Body process is：Raw material is disperseed, polyimide fiber is obtained after press dewatering, drying, high temperature press polish imidization processing
Paper；The raw material is the mixture of polyimides chopped strand or polyimides chopped strand and polyimides fibrid.
4. the preparation method of a kind of composite polyimide material according to claim 2, it is characterised in that in step 2,
The thickness of polyamic acid glued membrane is 0.025mm.
5. the preparation method of a kind of composite polyimide material according to claim 2, it is characterised in that in step 3,
Temperature is 200 DEG C.
6. prepare a kind of method of composite polyimide material described in claim 1, it is characterised in that comprise the following steps：
Step 1: polyimide fiber paper is manufactured paper with pulp；
Gather Step 2: being formed polyamic acid glue-coating on a polyimide fiber paper using the method for salivation or coating
Amic acid glued membrane, then this polyimide fiber paper and polyamic acid glued membrane are subjected to imidization processing, temperature is 40~300 DEG C,
The thickness of control polyamic acid glued membrane obtains polyimide fiber paper and polyimides in 0.025~0.05mm in the process
The compound of film, thickness is 0.075~0.45mm；
Step 3: another polyimide fiber paper is carried out together with the compound of above-mentioned acquisition at high temperature pressure roller hot pressing ornamenting
Reason, temperature is 50~350 DEG C, and speed is 2~40m/min, obtains the polyimides fire retardant insulating composite flexible material of the present invention.
7. a kind of preparation method of composite polyimide material according to claim 6, it is characterised in that the tool of step one
Body process is：Raw material is disperseed, polyimide fiber is obtained after press dewatering, drying, high temperature press polish imidization processing
Paper；The raw material is the mixture of polyimides chopped strand or polyimides chopped strand and polyimides fibrid.
8. the preparation method of a kind of composite polyimide material according to claim 6, it is characterised in that in step 2,
The thickness of polyamic acid glued membrane is 0.05mm.
9. the preparation method of a kind of composite polyimide material according to claim 6, it is characterised in that in step 2,
Temperature is 40~200 DEG C.
10. the preparation method of a kind of composite polyimide material according to claim 6, it is characterised in that in step 3,
Temperature is 200 DEG C.
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| CN201710467409.8A CN107142777A (en) | 2017-06-20 | 2017-06-20 | A kind of composite polyimide material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710467409.8A CN107142777A (en) | 2017-06-20 | 2017-06-20 | A kind of composite polyimide material and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010311A (en) * | 1973-09-14 | 1977-03-01 | Ppg Industries, Inc. | Impact-resistant glass-polyesterurethane laminates |
| CN102298998A (en) * | 2010-06-23 | 2011-12-28 | 比亚迪股份有限公司 | Insulating material and preparation method for the same |
| CN102587217A (en) * | 2012-03-28 | 2012-07-18 | 天津工业大学 | Preparation method of polyimide fiber insulating paper |
| CN102747634A (en) * | 2012-07-27 | 2012-10-24 | 陕西科技大学 | Method for preparing modified polyimide fiber papers |
| CN105504810A (en) * | 2016-01-07 | 2016-04-20 | 江苏先诺新材料科技有限公司 | Method for preparing high-intensity and high-modulus polyimide-fiber-reinforced polyimide sheet through continuous forming |
-
2017
- 2017-06-20 CN CN201710467409.8A patent/CN107142777A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010311A (en) * | 1973-09-14 | 1977-03-01 | Ppg Industries, Inc. | Impact-resistant glass-polyesterurethane laminates |
| CN102298998A (en) * | 2010-06-23 | 2011-12-28 | 比亚迪股份有限公司 | Insulating material and preparation method for the same |
| CN102587217A (en) * | 2012-03-28 | 2012-07-18 | 天津工业大学 | Preparation method of polyimide fiber insulating paper |
| CN102747634A (en) * | 2012-07-27 | 2012-10-24 | 陕西科技大学 | Method for preparing modified polyimide fiber papers |
| CN105504810A (en) * | 2016-01-07 | 2016-04-20 | 江苏先诺新材料科技有限公司 | Method for preparing high-intensity and high-modulus polyimide-fiber-reinforced polyimide sheet through continuous forming |
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Application publication date: 20170908 |