CN105733468A - Insulating tape - Google Patents
Insulating tape Download PDFInfo
- Publication number
- CN105733468A CN105733468A CN201610277705.7A CN201610277705A CN105733468A CN 105733468 A CN105733468 A CN 105733468A CN 201610277705 A CN201610277705 A CN 201610277705A CN 105733468 A CN105733468 A CN 105733468A
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- Prior art keywords
- basic unit
- insulating tape
- colophonium
- layer
- parts
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/205—Adhesives in the form of films or foils characterised by their carriers characterised by the backing impregnating composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2463/00—Presence of epoxy resin
- C09J2463/006—Presence of epoxy resin in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2495/00—Presence of bitume
- C09J2495/006—Presence of bitume in the substrate
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Insulating Bodies (AREA)
Abstract
The invention relates to the field of insulating materials and particularly relates to an insulating tape which consists of a base layer and a viscose layer, wherein the base layer is obtained by impregnating double-layer gauze with a base-layer glue solution and then drying the double-layer gauze; and the base-layer glue solution comprises the following raw materials in parts by weight: 10-15 parts of 10# asphalt, 10-15 parts of 70# asphalt, 10-12 parts of epoxy resin, 3-5 parts of pigment filler and 1-3 parts of hydroxyl-terminated hyperbranched polymer. With a gauze base, the foundation of the base layer is firm, and the aging resistance and weather resistance are enhanced; in the base-layer glue solution, the asphalt is compounded with the epoxy resin; and in order to enhance the bonding property with the gauze, the hydroxyl-terminated hyperbranched polymer is added, and the base-layer material has higher firmness, acid-alkali resistance, insulating property and aging resistance while the service life is prolonged.
Description
Technical field
The present invention relates to insulant field, particularly relate to a kind of insulating tape.
Background technology
The most common pressure-sensitive electro-insulating rubber adhesive tape substantially has two classes, one class is formed electro-insulating rubber band by two kinds of sheet rubber laminatings, it is divided into elastic insulating layer and adhesion coating, another kind of is the main self-adhesive rubber band made by butyl rubber, this defect that two classes adhesive tape mostly exists complicated process of preparation, energy consumption is high, the most this kind of adhesive tape easily hardens under long term high temperature environment, loses viscosity.Silicone rubber reaches the characteristic of 380 DEG C owing to having high temperature resistant theoretical value, it is widely used in manufacturing insulant in recent years, the most domestic mostly with rolling process manufacture pure silicone rubber insulating tape, for electromotor and some electronic devices and components etc., but pure silicone rubber is resistant to the high temperature of 380 DEG C the most at short notice, increase over time, its class of insulation can decline and cause insulated coil to damage, thus still cannot extend service life, the environment that a few thing temperature is higher, the insulating tape of prior art cannot meet requirement.External useful silicone rubber and glass fabric are combined the technology of calendering and produce insulating tape, it is possible to bear higher temperature, but this insulating tape complex manufacturing, equipment requirements is higher, and product specification is restricted, and promotes difficult.
Fabricbase insulating tape is based on natural rubber, add the fillers such as triple superphosphate, Colophonium, Colophonium, vaseline, white carbon black, making through spreader frictioning after mixing, its products characteristics is power consumption height, complex manufacturing, product storage period is short, easily occur qualitative change, viscosity poor again.
Summary of the invention
In order to solve, loss of properties on aging present in above insulating tape, power consumption height, complex manufacturing, product storage period are short, easily the poor problem of qualitative change, viscosity occurs, and this application provides the insulating tape that a kind of raw material is easy to get, production technology is simple, resistance to ag(e)ing good, storage period, length was unlikely to deteriorate.
The present invention is achieved by the following measures:
A kind of insulating tape, is made up of basic unit and adhesive-layer, and described basic unit is dried to obtain after double gauze is impregnated basic unit's glue, and described basic unit glue raw material weight proportioning is as follows:
10# Colophonium 10-15 part, 70# Colophonium 10-15 part, epoxy resin 10-12 part, color stuffing 3-5 part, Hyperbranched Polymer with Terminal Hydroxyl 1-3 part.
Described insulating tape, preferably basic unit are obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) double gauze is immersed in basic unit's glue, take out, be dried, to obtain final product.
Described insulating tape, preferably double gauze specification 21s, density 30 × 30.
Described insulating tape, uses twice impregnation in preferred steps (2), impregnation impregnation rate controls at 70-90% for the first time, and impregnation impregnation rate controls at 50-70% for the second time.After impregnation rate refers to gauze impregnation, the weight of glue accounts for glue and the percentage ratio of gauze gross weight.
Described insulating tape, preferably Hyperbranched Polymer with Terminal Hydroxyl are obtained through the following steps:
(1) by diethanolamine and phthalic anhydride, AB is obtained2Type monomer；
(2) AB2Type monomer reacts with trimethylolpropane, obtains Hyperbranched Polymer with Terminal Hydroxyl.
Described insulating tape, preferably AB2Type monomer is 1-45:1 with the mol ratio of trimethylolpropane.
Described insulating tape, preferably AB2Type monomer is 9:1,21:1 or 45:1 with the mol ratio of trimethylolpropane.
Described insulating tape, preferably adhesive-layer material are pressure sensitive adhesive.
Beneficial effects of the present invention:
1, basic unit uses gauze substrate, gives basic unit's firm foundations, strengthens ageing-resistant and weatherability；
2, basic unit's glue uses compounding with epoxy resin of Colophonium, in order to strengthen the adhesive property of same gauze, adds Hyperbranched Polymer with Terminal Hydroxyl so that base material is firmer, acid and alkali resistance, insulation, aging resistance, increase the service life.
Detailed description of the invention
In order to be better understood from the present invention, further illustrate below in conjunction with specific embodiment.
Hyperbranched Polymer with Terminal Hydroxyl is obtained through the following steps:
(1) weigh 22.217g phthalic anhydride, 15.771g diethanolamine, first diisopropanolamine (DIPA) is dissolved in 40mL DMAc, pours into after dissolving in there-necked flask, again phthalic anhydride 40mlDMAc is dissolved, then it is slowly added dropwise in there-necked flask, under agitation normal-temperature reaction 3h, is obtained AB2Type monomer；
(2) in there-necked flask, it is initially charged 60mL toluene the most again, adds trimethylolpropane as core molecule (core molecule and AB2The mol ratio of type monomer is 1:45), after trimethylolpropane is completely dissolved by the time, is adding 0.245g p-methyl benzenesulfonic acid, be heated to 130 degree of condensing reflux 24h, isolate the water of generation with water knockout drum, finally reduce pressure distilation, preferably trimethylolpropane and AB2The mol ratio of type monomer is to respectively obtain the second filial generation, the third generation, forth generation Hyperbranched Polymer with Terminal Hydroxyl when 1:9,1:21 and 1:45.
Embodiment
1
:
A kind of insulating tape, is made up of basic unit and adhesive-layer, and basic unit is by specification 21s, and the double gauze of density 30 × 30 is dried to obtain after impregnating basic unit's glue, and basic unit's glue raw material weight proportioning is as follows:
10# Colophonium 10 parts, 70# Colophonium 15 parts, epoxy resin 10 parts, color stuffing 5 parts, second filial generation Hyperbranched Polymer with Terminal Hydroxyl 1 part.
Basic unit is obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) being immersed by double gauze in basic unit's glue, impregnation impregnation rate controls 70% for the first time, takes out, and is dried, and impregnation impregnation rate controls 70% for the second time, takes out, and is dried, to obtain final product.
Embodiment
2
:
A kind of insulating tape, is made up of basic unit and adhesive-layer, and basic unit is by specification 21s, and the double gauze of density 30 × 30 is dried to obtain after impregnating basic unit's glue, and basic unit's glue raw material weight proportioning is as follows:
10# Colophonium 15 parts, 70# Colophonium 10 parts, epoxy resin 12 parts, color stuffing 3 parts, second filial generation Hyperbranched Polymer with Terminal Hydroxyl 3 parts.
Basic unit is obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) being immersed by double gauze in basic unit's glue, impregnation impregnation rate controls 90% for the first time, takes out, and is dried, and impregnation impregnation rate controls 50% for the second time, takes out, and is dried, to obtain final product.
Embodiment
3
:
A kind of insulating tape, is made up of basic unit and adhesive-layer, and basic unit is by specification 21s, and the double gauze of density 30 × 30 is dried to obtain after impregnating basic unit's glue, and basic unit's glue raw material weight proportioning is as follows:
10# Colophonium 15 parts, 70# Colophonium 10 parts, epoxy resin 12 parts, color stuffing 3 parts, third generation Hyperbranched Polymer with Terminal Hydroxyl 3 parts.
Basic unit is obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) being immersed by double gauze in basic unit's glue, impregnation impregnation rate controls 90% for the first time, takes out, and is dried, and impregnation impregnation rate controls 50% for the second time, takes out, and is dried, to obtain final product.
Embodiment
4
:
A kind of insulating tape, is made up of basic unit and adhesive-layer, and basic unit is by specification 21s, and the double gauze of density 30 × 30 is dried to obtain after impregnating basic unit's glue, and basic unit's glue raw material weight proportioning is as follows:
10# Colophonium 15 parts, 70# Colophonium 10 parts, epoxy resin 12 parts, color stuffing 3 parts, forth generation Hyperbranched Polymer with Terminal Hydroxyl 3 parts.
Basic unit is obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) being immersed by double gauze in basic unit's glue, impregnation impregnation rate controls 90% for the first time, takes out, and is dried, and impregnation impregnation rate controls 50% for the second time, takes out, and is dried, to obtain final product.
Comparative example
1
Compared with embodiment 3, being added without Hyperbranched Polymer with Terminal Hydroxyl in basic unit's glue raw material, remaining operation is identical.
Comparative example
2
Compared with embodiment 3, in basic unit's glue raw material, 10# Colophonium being replaced with 70# Colophonium, remaining operation is identical.
Performance test
The insulating tape operating temperature range of the application is-40 DEG C to 105 DEG C, and Applicable temperature scope is wide, meets and in most cases uses.The insulating tape basic unit obtaining above-described embodiment 1-4 and comparative example 1,2 stretches, tears, aging, breakdown voltage, resistive performance test, see table.
Above-described embodiment is the present invention preferably embodiment; but embodiments of the present invention also should not be limited by the examples; the change made under other any spirit without departing from the present invention and principle, modify, combine, substitute, simplify and all should be equivalence substitute mode, within being included in protection scope of the present invention.
Claims (8)
1. an insulating tape, it is characterised in that be made up of basic unit and adhesive-layer, described basic unit is dried to obtain after double gauze is impregnated basic unit's glue, and described basic unit glue raw material weight proportioning is as follows:
10# Colophonium 10-15 part, 70# Colophonium 10-15 part, epoxy resin 10-12 part, color stuffing 3-5 part, Hyperbranched Polymer with Terminal Hydroxyl 1-3 part.
Insulating tape the most according to claim 1, it is characterised in that basic unit is obtained through the following steps:
(1) 10# Colophonium and 70# Colophonium are joined in heat-conducting oil furnace, stir 10 minutes after fusing；It is subsequently adding epoxy resin, stirs 10-20 minute, add dissaving polymer, use colloid mill grinds, and makes epoxy resin and dissaving polymer be sufficiently mixed with Colophonium, maintains the temperature at 203-210 DEG C, add color stuffing stirring half an hour, make color stuffing be completely dispersed, make basic unit's glue；
(2) double gauze is immersed in basic unit's glue, take out, be dried, to obtain final product.
Insulating tape the most according to claim 2, it is characterised in that double gauze specification 21s, density 30 × 30.
Insulating tape the most according to claim 2, it is characterised in that using twice impregnation in step (2), impregnation impregnation rate controls at 70-90% for the first time, and impregnation impregnation rate controls at 50-70% for the second time.
Insulating tape the most according to claim 1, it is characterised in that Hyperbranched Polymer with Terminal Hydroxyl is obtained through the following steps:
(1) by diethanolamine and phthalic anhydride, AB is obtained2Type monomer；
(2) AB2Type monomer reacts with trimethylolpropane, obtains Hyperbranched Polymer with Terminal Hydroxyl.
Insulating tape the most according to claim 5, it is characterised in that AB2Type monomer is 1-45:1 with the mol ratio of trimethylolpropane.
Insulating tape the most according to claim 2, it is characterised in that AB2Type monomer is 9:1,21:1 or 45:1 with the mol ratio of trimethylolpropane.
Insulating tape the most according to claim 1, it is characterised in that adhesive-layer material is pressure sensitive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277705.7A CN105733468A (en) | 2016-04-28 | 2016-04-28 | Insulating tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610277705.7A CN105733468A (en) | 2016-04-28 | 2016-04-28 | Insulating tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105733468A true CN105733468A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610277705.7A Pending CN105733468A (en) | 2016-04-28 | 2016-04-28 | Insulating tape |
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| Country | Link |
|---|---|
| CN (1) | CN105733468A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967369A (en) * | 2017-03-22 | 2017-07-21 | 合肥浦尔菲电线科技有限公司 | One kind electric insulation adhesive plaster |
| CN110564313A (en) * | 2019-08-30 | 2019-12-13 | 安徽省通信产业服务有限公司 | Method for slowing down aging of insulating tape |
| CN111960963A (en) * | 2020-08-28 | 2020-11-20 | 南京林业大学 | Phthalic anhydride diisopropanol amide and preparation method thereof, and phthalic anhydride diisopropanol amide polyurethane foam and preparation method thereof |
| CN112046029A (en) * | 2020-07-31 | 2020-12-08 | 北京贝威通石油科技有限公司 | Preparation method of high-strength insulating adhesive tape |
| CN112358774A (en) * | 2020-11-12 | 2021-02-12 | 无锡帝科电子材料股份有限公司 | Preparation method of high-performance insulating glue |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919893A (en) * | 2005-08-26 | 2007-02-28 | 中国科学院成都有机化学有限公司 | Hyperbranched great macromonomer, acrylate resin containing hyperbranched structure and preparation method |
| WO2008076244A1 (en) * | 2006-12-13 | 2008-06-26 | Henkel Corporation | Prepreg laminates |
| CN103865262A (en) * | 2014-03-27 | 2014-06-18 | 济南大学 | Application of hyperbranched polymer in waterproof coiled material |
| CN105038224A (en) * | 2015-07-23 | 2015-11-11 | 江苏恒神股份有限公司 | Benzoxazine prepreg composite and preparation method |
-
2016
- 2016-04-28 CN CN201610277705.7A patent/CN105733468A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919893A (en) * | 2005-08-26 | 2007-02-28 | 中国科学院成都有机化学有限公司 | Hyperbranched great macromonomer, acrylate resin containing hyperbranched structure and preparation method |
| WO2008076244A1 (en) * | 2006-12-13 | 2008-06-26 | Henkel Corporation | Prepreg laminates |
| CN103865262A (en) * | 2014-03-27 | 2014-06-18 | 济南大学 | Application of hyperbranched polymer in waterproof coiled material |
| CN105038224A (en) * | 2015-07-23 | 2015-11-11 | 江苏恒神股份有限公司 | Benzoxazine prepreg composite and preparation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967369A (en) * | 2017-03-22 | 2017-07-21 | 合肥浦尔菲电线科技有限公司 | One kind electric insulation adhesive plaster |
| CN110564313A (en) * | 2019-08-30 | 2019-12-13 | 安徽省通信产业服务有限公司 | Method for slowing down aging of insulating tape |
| CN112046029A (en) * | 2020-07-31 | 2020-12-08 | 北京贝威通石油科技有限公司 | Preparation method of high-strength insulating adhesive tape |
| CN111960963A (en) * | 2020-08-28 | 2020-11-20 | 南京林业大学 | Phthalic anhydride diisopropanol amide and preparation method thereof, and phthalic anhydride diisopropanol amide polyurethane foam and preparation method thereof |
| CN112358774A (en) * | 2020-11-12 | 2021-02-12 | 无锡帝科电子材料股份有限公司 | Preparation method of high-performance insulating glue |
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