[go: up one dir, main page]

CN106497491B - Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof - Google Patents

Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof Download PDF

Info

Publication number
CN106497491B
CN106497491B CN201611045377.4A CN201611045377A CN106497491B CN 106497491 B CN106497491 B CN 106497491B CN 201611045377 A CN201611045377 A CN 201611045377A CN 106497491 B CN106497491 B CN 106497491B
Authority
CN
China
Prior art keywords
refrigerant
resistant
adhesive
composite material
glue
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
CN201611045377.4A
Other languages
Chinese (zh)
Other versions
CN106497491A (en
Inventor
李正胜
孙永鹏
陈子荣
刘兴隆
陈颖
曾智
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.)
Zhuzhou Times Electric Insulation Co Ltd
Original Assignee
Zhuzhou Times Electric Insulation 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 Zhuzhou Times Electric Insulation Co Ltd filed Critical Zhuzhou Times Electric Insulation Co Ltd
Priority to CN201611045377.4A priority Critical patent/CN106497491B/en
Publication of CN106497491A publication Critical patent/CN106497491A/en
Application granted granted Critical
Publication of CN106497491B publication Critical patent/CN106497491B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses a refrigerant-resistant adhesive which is prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of (0.01:1) - (0.6:1), wherein the modified epoxy glue is prepared by the following raw materials: vegetable oil, acid anhydride, amide resin, epoxy resin, solvent and accelerator. The invention also discloses a preparation method of the refrigerant-resistant adhesive, a refrigerant-resistant soft composite material prepared by the refrigerant adhesive and a preparation method of the refrigerant-resistant soft composite material. The invention adopts epoxy glue to modify polyurethane glue to prepare the refrigerant-resistant adhesive, the main component of the adhesive is still the polyurethane glue with high heat-resistant grade, and the heat-resistant grade of the product can reach more than 180 grades through UL certification. The refrigerant-resistant soft composite material has no physical or chemical damages such as layering, foaming, gummosis and the like in the testing and application processes, and has low weight loss rate and no obvious change in appearance; after the cold medium resistance test, the retention rate of the performances such as tensile strength, breakdown voltage and the like is more than 85%.

Description

Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof
Technical Field
The invention belongs to the field of insulating materials, and particularly relates to a refrigerant-resistant adhesive and a preparation method thereof, and a refrigerant-resistant soft composite material and a preparation method thereof.
Background
In the motor category, the refrigerant-resistant motor is a special motor, the use condition of which is very bad, and the motor needs to be placed in a sealed refrigerant, a refrigerating machine oil and other refrigeration media to work for a long time under high pressure and high temperature. The insulating material directly bears the alternating action of refrigerant, refrigerating machine oil and temperature difference, pressure difference and phase change, the chemical corrosion is very serious, and the refrigerant resistance of the insulating material is strictly required to ensure the service life of the motor.
The soft composite material is one of important product types of insulating materials, is used for motor slot insulation, turn-to-turn insulation, interphase insulation and the like, is an electrical insulating layer, is a physical barrier layer, and protects an electromagnetic wire or an enameled wire from mechanical damage caused by burrs and sharp edges on a metal punching sheet. At present, common soft composite material products on the market do not have refrigerant resistance, have poor phenomena such as layering and foaming during a refrigerant resistance test, have high weight loss rate and low performance retention rate after the test, and can not meet the use requirement of a refrigerant resistance motor.
The heat resistance, water resistance, acid and alkali resistance, refrigerant resistance and other performances of the soft composite material product are greatly related to the properties of the adopted adhesive, and in view of the fact that the common adhesive and the soft composite material at present cannot meet the application requirements of the refrigerant-resistant motor, the refrigerant-resistant adhesive and the refrigerant-resistant soft composite material which can be suitable for various refrigerant mediums such as R22, R123, R134a and R410a are urgently needed to be researched.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects and shortcomings in the background technology and provides a refrigerant-resistant adhesive and a preparation method thereof, and a refrigerant-resistant soft composite material and a preparation method thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the refrigerant-resistant adhesive is mainly prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of (0.01:1) - (0.6:1), wherein the modified epoxy glue is mainly prepared from the following raw materials:
10-45 parts by weight of vegetable oil,
5 to 20 parts by weight of an acid anhydride,
5 to 20 parts by weight of an amide resin,
15 to 50 parts by weight of an epoxy resin,
20-60 parts of solvent and 0.1-5 parts of accelerator.
Preferably, the modified epoxy glue is mainly prepared from the following raw materials:
15-35 parts by weight of vegetable oil,
5 to 15 parts by weight of an acid anhydride,
5 to 15 parts by weight of an amide resin,
20 to 40 parts by weight of an epoxy resin,
30-50 parts of solvent and 0.1-2.5 parts of accelerator.
Preferably, the mass ratio of the modified epoxy glue to the polyurethane glue is (0.1:1) - (0.5: 1).
Preferably, the polyurethane adhesive is a polyurethane adhesive with a heat-resistant grade of more than 180, and the polyurethane adhesive is a two-component polyurethane adhesive, specifically, any one of 101 adhesive and LOCTITE LIOFOL LA 2716/5500 is selected. Further preferably, the 101 glue is purchased from Shanghai New photo-chemical company, Inc. or Jiangsu Lihe adhesive company, Inc.; LOCTITE lionol LA 2716/5500 was purchased from hangao (china) investment limited.
Preferably, the vegetable oil is one or more selected from dehydrated castor oil, linseed oil and tung oil;
the acid anhydride is selected from one or more of phthalic anhydride, trimellitic anhydride, maleic anhydride and tetrahydrophthalic anhydride;
the amide resin is selected from one or more of bismaleimide, caprolactam and polyimide.
Preferably, the epoxy resin is one or more selected from the group consisting of E-20, E-44, E-51, F-44, F-51, AG-80 and AFG-90;
the solvent is selected from one or more of methyl acetate, ethyl acetate, acetone, butanone, toluene and xylene; more preferably one or a combination of two of ethyl acetate and acetone;
the accelerant is selected from one or more of 2-methylimidazole, 2-ethyl-4-methylimidazole, DMP-30 (tris- (dimethylaminomethyl) phenol) and triethanolamine.
As a general inventive concept, the present invention also provides a preparation method of the refrigerant-resistant adhesive, comprising the following steps:
(1) heating vegetable oil to 60-130 ℃, vacuumizing for 0.5-2 h, then adding anhydride, reacting for 0.5-2 h at 100-180 ℃, adding amide resin, and cooling after the reaction is uniform;
(2) then adding epoxy resin, solvent and accelerant into the mixture obtained in the step (1), and fully and uniformly stirring to obtain modified epoxy glue;
(3) preparing the modified epoxy glue and the polyurethane glue into glue solution according to the mass ratio of (0.01:1) - (0.6:1), and obtaining the cold-medium-resistant adhesive; wherein, the polyurethane adhesive is prepared from the following main agents: the curing agent is prepared from (2: 1) - (10:1) (mass ratio).
In the preparation method, preferably, in the step (2), when the temperature is reduced to 80-100 ℃, epoxy resin is added; when the temperature is reduced to 60-75 ℃, adding a solvent; adding an accelerant when the temperature is reduced to 30-40 ℃.
As a general inventive concept, the invention also provides a cold-resistant soft composite material, which is formed by bonding and compounding the film and the fiber paper by using the cold-resistant adhesive prepared by the preparation method or the preparation method.
As a general inventive concept, the invention also provides a preparation method of the refrigerant-resistant soft composite material, which comprises the following specific steps: and (2) diluting the refrigerant-resistant adhesive to the viscosity of 15-28 s by using a solvent at room temperature, bonding and compounding a film and fibers on a compounding machine to form a precursor of the refrigerant-resistant soft composite material, and finally performing heat treatment on the precursor to obtain the refrigerant-resistant soft composite material.
In the preparation method, preferably, the heat treatment temperature is 90-150 ℃; the heat treatment time is 24-48 h.
Compared with the prior art, the invention has the advantages that:
(1) the invention adopts epoxy glue to modify polyurethane glue to prepare the refrigerant-resistant adhesive, the main component of the adhesive is still the polyurethane glue with high heat-resistant grade (the heat-resistant grade is more than 180 grade), the prepared product has excellent heat resistance, and the heat-resistant grade of the product can reach more than 180 grade after UL certification.
(2) The polyurethane adhesive adopted by the invention has high heat resistance and strong cohesiveness, but the cured product of the polyurethane adhesive has low crosslinking density and is easy to invade by cold medium so as to cause failure; the epoxy glue introduced by the invention contains more aromatic rings and heterocyclic rings, the crosslinking density of a cured product is high, and after the epoxy glue is used for modifying polyurethane glue, the original characteristics are kept, the cured product has a compact structure and high crosslinking density, is not easy to be corroded by a refrigerant medium, greatly improves the refrigerant resistance, and can resist various refrigerant media such as R22, R123, R134a, R410a and the like; the refrigerant-resistant soft composite material has no physical or chemical damages such as layering, foaming, gummosis and the like in the testing and application processes, and has low weight loss rate and no obvious change in appearance; after the cold medium resistance test, the retention rate of the performances such as tensile strength, breakdown voltage and the like is more than 85%.
(3) The raw materials adopted by the refrigerant-resistant soft composite material are easy to obtain, and the prepared product has excellent heat resistance and outstanding performance of resisting various refrigerant mediums, and is widely applied to air conditioner motors, refrigeration compressors and the like.
(4) The preparation method of the refrigerant-resistant adhesive and the refrigerant-resistant soft composite material has the advantages of simple operation, controllable reaction and high safety coefficient.
Detailed Description
In order to facilitate an understanding of the present invention, the present invention will be described more fully and in detail with reference to the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1:
the invention relates to a refrigerant-resistant adhesive which is mainly prepared by mixing a modified epoxy adhesive and a polyurethane adhesive in a mass ratio of 0.4:1, wherein the modified epoxy adhesive is mainly prepared from 28kg of tung oil, 11kg of maleic anhydride, 7.5kg of bismaleimide, 10kg of E-44 epoxy resin, 13kg of F-51 epoxy resin, 30kg of acetone and 0.5kg of DMP-30.
The preparation method of the refrigerant-resistant adhesive comprises the following steps:
(1) heating 28kg of tung oil to 100 ℃, vacuumizing for 1h, adding 11kg of maleic anhydride, reacting at 150 ℃ for 1.5h, adding 7.5kg of bismaleimide, cooling to 100 ℃ after uniform reaction, and adding 10kg of E-44 epoxy resin and 13kg of F-51 epoxy resin; adding 30kg of acetone when the temperature is reduced to 60 ℃, adding 0.5kg of DMP-30 when the temperature is reduced to 35 ℃, and fully and uniformly stirring to obtain the modified epoxy glue;
(2) preparing polyurethane glue from LOCTITE LIOFOL LA 2716 and LOCTITE LIOFOL LA 5500 according to the mass ratio of 5: 1;
(3) and preparing the modified epoxy glue and the polyurethane glue into a glue solution according to the mass ratio of 0.4:1, thus obtaining the refrigerant-resistant adhesive.
A kind of cold-resistant NMN soft composite material (flexible composite material of polyaramide fiber paper of polyester film), adopt the cold-resistant adhesive of this embodiment to bond polyester film and polyaramide fiber paper and compound to get final product; the specific preparation method comprises the following steps:
at room temperature, the refrigerant-resistant adhesive prepared in the embodiment is diluted to 21s with acetone, then the polyester film and the polyaramide fiber paper are bonded into a precursor of the NMN flexible composite material on a special compound machine, and finally, the precursor is heated at 130 ℃ for 30h for heat treatment, so that the refrigerant-resistant NMN flexible composite material is prepared.
The test results before and after the refrigerant resistance test of the refrigerant-resistant soft composite material are shown in the table 1:
TABLE 1 comparison of Performance before and after Coolant resistance test for refrigerant-resistant NMN Soft composites prepared in example 1
The test data in table 1 show that the cold-resistant soft composite material of the present embodiment has little change in various properties before and after the cold-resistant test, the retention rate is above 88.0%, and the weight loss rate is low, which indicates that the cold-resistant soft composite material of the present invention has good cold-resistant property.
Example 2:
the invention relates to a refrigerant-resistant adhesive which is mainly prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of 0.35:1, wherein the modified epoxy glue is mainly prepared from 22kg of dehydrated castor oil, 8kg of maleic anhydride, 11kg of bismaleimide, 15kg of E-20 epoxy resin, 11kg of F-44 epoxy resin, 32.4kg of ethyl acetate and 0.6kg of 2-methylimidazole.
The preparation method of the refrigerant-resistant adhesive comprises the following steps:
(1) heating 22kg of dehydrated castor oil to 110 ℃, vacuumizing for 1h, then adding 8kg of maleic anhydride at the temperature of 60 ℃, heating to 140 ℃, reacting for 1h, adding 11kg of bismaleimide, cooling to 100 ℃ after uniform reaction, and adding 15kg of E-20 epoxy resin and 11kg of F-44 epoxy resin; when the temperature is reduced to 75 ℃, 32.4kg of ethyl acetate is added; when the temperature is reduced to 35 ℃, 0.6kg of 2-methylimidazole is added, and the mixture is fully and uniformly stirred to obtain the modified epoxy adhesive;
(2) preparing polyurethane glue from LOCTITE LIOFOL LA 2716 and LOCTITE LIOFOL LA 5500 according to the mass ratio of 5: 1;
(3) and (3) preparing the modified epoxy glue and the polyurethane glue into a glue solution according to the mass ratio of 0.35:1, thus obtaining the refrigerant-resistant adhesive.
A kind of cold-resistant NHN soft composite material (polyimide film polyaramide fiber paper soft composite material), adopt and adopt the cold-resistant adhesive of this embodiment to bond polyimide film and polyaramide fiber paper and compound to get final product; the specific preparation method comprises the following steps:
at room temperature, the refrigerant-resistant adhesive prepared in the embodiment is diluted with ethyl acetate to have viscosity of 19.5s, then the polyimide film and the polyaramide fiber paper are bonded into a precursor of the NHN soft composite material on a special compound machine, and finally the NHN soft composite material is prepared by heating at 140 ℃ for 24h for heat treatment.
The test results before and after the refrigerant resistance test of the refrigerant-resistant soft composite material are shown in the table 2:
TABLE 2 comparison of Performance before and after Coolant resistant NHN Soft composites prepared in EXAMPLE 2
The test data in table 2 show that the cold-resistant soft composite material has little change in various properties before and after the cold-resistant test, the retention rate is more than 87.5%, and the weight loss rate is low, which indicates that the cold-resistant soft composite material has good cold-resistant performance.
Example 3:
the invention relates to a refrigerant-resistant adhesive which is mainly prepared by mixing a modified epoxy adhesive and a polyurethane adhesive in a mass ratio of 0.5:1, wherein the modified epoxy adhesive is mainly prepared from 22kg of dehydrated castor oil, 6.2kg of maleic anhydride, 2.5kg of phthalic anhydride, 5.5kg of trimellitic anhydride, 8.2kg of caprolactam, 20kg of AG-80 epoxy resin, 35.3kg of acetone and 0.3kg of triethanolamine.
The preparation method of the refrigerant-resistant adhesive comprises the following steps:
(1) heating 22kg of dehydrated castor oil to 110 ℃, vacuumizing for 1h, adding 6.2kg of maleic anhydride, 2.5kg of phthalic anhydride and 5.5kg of trimellitic anhydride at 160 ℃, reacting for 2h at 180 ℃, adding 8.2kg of caprolactam, cooling to 80 ℃ after uniform reaction, and adding 20kg of AG-80 epoxy resin; when the temperature is reduced to 60 ℃, 35.3kg of acetone is added; when the temperature is reduced to 40 ℃, 0.3kg of triethanolamine is added, and the mixture is fully and uniformly stirred to obtain the modified epoxy glue;
(2) preparing a polyurethane adhesive from a 101 adhesive main agent and a 101 adhesive curing agent according to the mass ratio of 8: 1;
(3) and preparing the modified epoxy glue and the polyurethane glue into a glue solution according to the mass ratio of 0.5:1, thus obtaining the refrigerant-resistant adhesive.
A kind of cold-resistant NMN soft composite material (flexible composite material of polyaramide fiber paper of polyester film), adopt the cold-resistant adhesive of this embodiment to bond polyester film and polyaramide fiber paper and compound to get final product; the specific preparation method comprises the following steps:
at room temperature, the refrigerant-resistant adhesive prepared in the embodiment is diluted to 23s with acetone, then the polyester film and the polyaramide fiber paper are bonded into a precursor of the NMN flexible composite material on a special compound machine, and finally, the precursor is heated at 135 ℃ for 28h for heat treatment to prepare the refrigerant-resistant NMN flexible composite material.
The test results before and after the refrigerant resistance test of the refrigerant-resistant soft composite material are shown in the table 3:
table 3 comparison of performance before and after cold media resistance test of refrigerant resistant NMN soft composite prepared in example 3
The test data in table 3 show that the cold-resistant soft composite material has little change in various properties before and after the cold-resistant test, the retention rate is above 86.7%, and the weight loss rate is low, which indicates that the cold-resistant soft composite material has good cold-resistant performance.
Comparative example 1:
the comparative example directly adopts polyurethane glue to prepare the NMN soft composite material, and the specific steps are as follows:
(1) preparing a polyurethane adhesive: preparing a polyurethane adhesive from a 101 adhesive main agent and a 101 adhesive curing agent according to the mass ratio of 8:1, and diluting the polyurethane adhesive to 17s (at room temperature) by using acetone;
(2) preparing an NMN soft composite material: and (3) bonding the polyester film and the polyaramide fiber paper into an NMN soft composite material precursor on a special compound machine by using the adhesive, and finally, carrying out heat treatment at the temperature of 60-80 ℃ for 48h to obtain a soft composite material product.
The test results before and after the refrigerant resistance test of the product are shown in the table 4:
table 4 comparison of properties before and after cold medium resistance test of NMN soft composite material prepared in comparative example 1
It can be seen from the test data in table 4 that the sample of the general NMN soft composite material prepared from the polyurethane adhesive is destroyed after the cold-medium resistance test, and the normal NMN soft composite material does not have the cold-medium resistance.
Comparative example 2:
the comparative example directly adopts polyurethane glue to prepare the NHN soft composite material, and comprises the following steps:
(1) preparing polyurethane glue by using LOCTITE LIOFOL LA 2716 and LOCTITE LIOFOL LA 5500 according to the mass ratio of 5:1, and diluting the polyurethane glue to 18s (at room temperature) by using ethyl acetate;
(2) preparing the NHN soft composite material: and (2) bonding the polyimide film and the polyaramide fiber paper into an NHN soft composite material precursor on a special compound machine by using the adhesive, and finally carrying out heat treatment at the temperature of 60-80 ℃ for 48h to obtain a soft composite material product.
The test results before and after the refrigerant resistance test of the product are shown in the table 5:
TABLE 5 comparison of the properties of the NHN soft composite prepared in comparative example 2 before and after the refrigerant resistance test
It can be seen from the test data in table 5 that the common soft composite material prepared from the polyurethane adhesive has no refrigerant resistance after the sample is damaged after the refrigerant resistance test.
Note: the performance indexes in tables 1-5 are according to GB/T5591.2-2002 part 2 of Soft composite materials for Electrical insulation: the test is carried out according to each item in the test method; the refrigerant resistance test method is carried out according to GB/T13501-: the temperature is 200 ℃, the pressure is 2.5MPa, and the time is 168 h.

Claims (9)

1. The refrigerant-resistant adhesive is characterized by being prepared by mixing modified epoxy glue and polyurethane glue in a mass ratio of (0.01:1) - (0.6:1), wherein the modified epoxy glue is prepared by the following raw materials:
15-35 parts by weight of vegetable oil,
5 to 15 parts by weight of an acid anhydride,
5 to 15 parts by weight of an amide resin,
20 to 40 parts by weight of an epoxy resin,
30-50 parts by weight of a solvent and 0.1-2.5 parts by weight of an accelerator; the vegetable oil is one or two selected from dehydrated castor oil and tung oil;
the anhydride is selected from one or two of maleic anhydride and tetrahydrophthalic anhydride;
the amide resin is bismaleimide;
the epoxy resin is selected from one or more of E-20, E-44, E-51, F-44, F-51, AG-80 and AFG-90.
2. The refrigerant-resistant adhesive according to claim 1, wherein the mass ratio of the modified epoxy glue to the polyurethane glue is (0.1:1) - (0.5: 1).
3. The cold-resistant adhesive according to any one of claims 1 to 2, wherein the polyurethane adhesive is a two-component polyurethane adhesive, and the polyurethane adhesive is any one selected from 101 adhesive and LOCTITE LIOFOL LA 2716/5500.
4. The cold-resistant adhesive according to any one of claims 1 to 2,
the solvent is selected from one or more of methyl acetate, ethyl acetate, acetone, butanone, toluene and xylene;
the accelerant is selected from one or more of 2-methylimidazole, 2-ethyl-4-methylimidazole, DMP-30 and triethanolamine.
5. The method for preparing the cold-resistant adhesive according to any one of claims 1 to 4, comprising the following steps:
(1) heating vegetable oil to 60-130 ℃, vacuumizing for 0.5-2 h, then adding anhydride, reacting for 0.5-2 h at 100-180 ℃, adding amide resin, and cooling after the reaction is uniform;
(2) adding epoxy resin, a solvent and an accelerant into the mixture obtained in the step (1), and fully and uniformly stirring to obtain a modified epoxy adhesive;
(3) and preparing the modified epoxy glue and the polyurethane glue into a glue solution according to the mass ratio to obtain the refrigerant-resistant adhesive.
6. The preparation method according to claim 5, wherein in the step (2), when the temperature is reduced to 80-100 ℃, the epoxy resin is added; when the temperature is reduced to 60-75 ℃, adding a solvent; adding an accelerant when the temperature is reduced to 30-40 ℃.
7. A cold-resistant flexible composite material, which is characterized in that a cold-resistant adhesive prepared by the preparation method of any one of claims 1 to 4 or any one of claims 5 to 6 is used for bonding and compounding a film and fiber paper.
8. The preparation method of the refrigerant-resistant soft composite material as claimed in claim 7, which comprises the following steps: and (2) diluting the refrigerant-resistant adhesive to the viscosity of 15-28 s by using a solvent at room temperature, bonding and compounding a film and fibers on a compounding machine to form a precursor of the refrigerant-resistant soft composite material, and finally performing heat treatment on the precursor to obtain the refrigerant-resistant soft composite material.
9. The method according to claim 8, wherein the heat treatment temperature is 90 to 150 ℃; the heat treatment time is 24-48 h.
CN201611045377.4A 2016-11-24 2016-11-24 Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof Active CN106497491B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611045377.4A CN106497491B (en) 2016-11-24 2016-11-24 Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611045377.4A CN106497491B (en) 2016-11-24 2016-11-24 Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN106497491A CN106497491A (en) 2017-03-15
CN106497491B true CN106497491B (en) 2019-12-31

Family

ID=58328162

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611045377.4A Active CN106497491B (en) 2016-11-24 2016-11-24 Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106497491B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108676332A (en) * 2018-05-31 2018-10-19 佛山市高明区爪和新材料科技有限公司 A kind of refrigerant PET composite material and preparation method thereof
CN109605894A (en) * 2018-11-29 2019-04-12 瑞安复合材料(深圳)有限公司 A kind of refrigerant insulating materials of fiberglass reinforced and preparation method thereof
CN112280024A (en) * 2020-10-29 2021-01-29 苏州巨峰电气绝缘系统股份有限公司 Refrigerant-resistant soft composite material, refrigerant-resistant adhesive and preparation method thereof
CN114672259A (en) * 2022-04-12 2022-06-28 四川东材科技集团股份有限公司 Oil-resistant composite material for automobile driving motor and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101659836A (en) * 2008-08-26 2010-03-03 上海同立电工材料有限公司 Radiation-resistant bismaleimide modified epoxy mica tape adhesive, preparation thereof and application thereof
CN101877259A (en) * 2009-12-25 2010-11-03 四川东材绝缘技术有限公司 High temperature resistant electrical soft composite material and manufacturing method thereof
CN103497693A (en) * 2013-09-18 2014-01-08 中国西电集团公司 Adhesive resin composite for preparing F-level multi-gelatine powder mica and preparation method thereof
CN104356989A (en) * 2014-11-20 2015-02-18 绵阳润缘电工材料有限公司 DMD (Dacron/Mylar/Dacron) flexible composite material adhesive
CN104449511A (en) * 2014-12-05 2015-03-25 中国西电集团公司 Preparation method of adhesive resin composition of H-grade multi-rubber powder mica tape

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103725161A (en) * 2013-12-31 2014-04-16 苏州巨峰高性能材料有限公司 Coolant-resistant water-soluble epoxy insulation impregnating resin, and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101659836A (en) * 2008-08-26 2010-03-03 上海同立电工材料有限公司 Radiation-resistant bismaleimide modified epoxy mica tape adhesive, preparation thereof and application thereof
CN101877259A (en) * 2009-12-25 2010-11-03 四川东材绝缘技术有限公司 High temperature resistant electrical soft composite material and manufacturing method thereof
CN103497693A (en) * 2013-09-18 2014-01-08 中国西电集团公司 Adhesive resin composite for preparing F-level multi-gelatine powder mica and preparation method thereof
CN104356989A (en) * 2014-11-20 2015-02-18 绵阳润缘电工材料有限公司 DMD (Dacron/Mylar/Dacron) flexible composite material adhesive
CN104449511A (en) * 2014-12-05 2015-03-25 中国西电集团公司 Preparation method of adhesive resin composition of H-grade multi-rubber powder mica tape

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
桐油酸酐酰亚胺环氧树脂耐热性研究;商士斌 等;《林产化学与工业》;20061231;第26卷(第4期);31-33 *
耐热增韧环氧树脂固化剂-马来酰亚胺桐油酸酐;王洛礼 等;《绝缘材料通讯》;19801226(第Z1期);32-35 *

Also Published As

Publication number Publication date
CN106497491A (en) 2017-03-15

Similar Documents

Publication Publication Date Title
CN106497491B (en) Refrigerant-resistant adhesive and preparation method thereof, and refrigerant-resistant soft composite material and preparation method thereof
CN110128982B (en) Normal-temperature fast-curing structural adhesive and preparation method thereof
CN102827566B (en) Single-component high/low-temperature-resistant epoxy resin composition
CN102604384B (en) Universal refrigerant resistant solvent-free impregnating resin for high and low voltage motor and preparation method thereof
CN102191002B (en) High-humidity and high-temperature resisting single component epoxy adhesive and its preparation method
CN107779147B (en) High-strength epoxy honeycomb adhesive and preparation method thereof
CN112646523A (en) High-performance medium-temperature curing single-component epoxy structural adhesive and preparation method thereof
CN113488305B (en) Adhesive, integrated inductor and preparation method
CN108291129A (en) Can second rank adhesive composition
CN104388028A (en) High temperature resistant tough epoxy resin binder
CN113897029B (en) Glass fiber reinforced plastic prepreg for high-speed fan blade
CN118398285A (en) Insulated wire, preparation method thereof, coil and electronic/electric equipment
CN104987849B (en) Epoxide resin AB glue and its making and use method for hot environment
CN110713788A (en) High-breakdown-voltage polyesterimide wire enamel and preparation method thereof
CN101906281B (en) High-temperature resistant structural adhesive and preparation method thereof
CN106634440B (en) A kind of thixotropy impregnating resin composition and preparation method thereof
CN112480865B (en) New energy automobile coil high-temperature-resistant adhesive
CN108753167A (en) A kind of resin combination, the stack bus bar insulated rubber film and preparation method thereof comprising it
CN111218110B (en) Cyanate ester matrix resin and preparation method thereof
CN112126386A (en) Low-temperature-resistant refrigerating pipeline sealant and preparation method and application thereof
CN118496793B (en) A kind of high temperature resistant heat conductive epoxy potting glue for motor and preparation method thereof
CN115785872B (en) Insulating pressure-bearing adhesive and preparation method, application and application method thereof
CN118725799A (en) A low-temperature epoxy tower splicing adhesive and its preparation method and application
CN118931317B (en) Polyurethane modified epoxy water-based self-adhesive insulating varnish for enameled wire and preparation method and application thereof
CN119177065B (en) Coating, preparation method and application thereof, and coated product

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20180726

Address after: 412199 Industrial Park, Lukou Economic Development Zone, Zhuzhou County, Zhuzhou, Hunan

Applicant after: Zhuzhou Times Electric Insulation Co., Ltd.

Address before: 412000 Haitian Road, Tianyuan District, Zhuzhou, Hunan Province, No. 18

Applicant before: Zhuzhou Shidai New Material Sci-Tech Co., Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant