CN113817427A - Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same - Google Patents

Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same Download PDF

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Publication number
CN113817427A
CN113817427A CN202110956175.XA CN202110956175A CN113817427A CN 113817427 A CN113817427 A CN 113817427A CN 202110956175 A CN202110956175 A CN 202110956175A CN 113817427 A CN113817427 A CN 113817427A
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flame retardant
flame
parts
retardant
needle
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郑靖宇
阮镜棠
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Dongguan Aozhongxin Material Technology Co ltd
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Dongguan Aozhongxin Material Technology Co ltd
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    • 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
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04Homopolymers or copolymers of esters
    • 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
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • 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
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • 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
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • 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
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • C09J7/25Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • 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
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/16Halogen-containing compounds
    • C08K2003/164Aluminum halide, e.g. aluminium chloride
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • 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
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/10Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/40Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • 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
    • C09J2433/00Presence of (meth)acrylic polymer
    • 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
    • C09J2479/00Presence of polyamine or polyimide
    • C09J2479/08Presence of polyamine or polyimide polyimide
    • C09J2479/086Presence of polyamine or polyimide polyimide in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)

Abstract

The invention provides a compound flame retardant and a needle flame resistant flame retardant adhesive tape and glue using the same. The compound flame retardant comprises 10-25 parts by weight of nitrogen flame retardant and 8-20 parts by weight of phosphorus flame retardant, wherein the nitrogen flame retardant comprises melamine and at least one of salt and dicyandiamide, and the phosphorus flame retardant comprises at least one of red phosphorus, ammonium phosphate, aluminum hypophosphite, diethyl aluminum phosphinate, polyphosphoric acid and phosphate. According to the invention, by compounding the flame retardant, all components can act synergistically, so that a better flame retardant effect is achieved. The adhesive tape adopting the compound flame retardant has excellent flame retardant performance, achieves the flame retardant rating of UL94V-0, has good needle flame resistance, is high in peel strength, and reduces the safety risk and warping risk of the adhesive tape in practical application.

Description

Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same
Technical Field
The invention relates to the technical field of flame retardants and adhesive tapes, in particular to a compound flame retardant and a needle flame resistant flame retardant adhesive tape and glue using the compound flame retardant.
Background
The lithium battery tab adhesive tape is commonly used for wrapping welding points of ultrasonic welding to prevent short circuit caused by the fact that the welding points pierce the diaphragm. At present, the electronic industry has higher and higher requirements on safety standards, and requires materials with fire resistance.
Along with the capacity increase of current soft packet of lithium cell, fill soon and tend to become a mainstream, the battery fills soon, and the electric current makes a round trip to pass through battery and mainboard, and utmost point ear department is the must route of passing through of battery connection mainboard again, if the circuit takes place the short circuit can be because of overheated and catch fire, and produced flame can form certain potential safety hazard to spare part on every side. Therefore, the poor fire-proof performance often has the risk of fire and even explosion. If the lithium battery tab adhesive tape has excellent flame retardant property and can meet the requirement of needle flame resistance, the safety risk can be reduced.
The existing adhesive tape has flame retardance by adding a certain amount of flame retardant, but the flame retardance is still not ideal, the needle flame resistance is unknown, and the requirements of people on the flame retardance and the needle flame resistance of the adhesive tape cannot be met.
Disclosure of Invention
The invention aims to provide a compound flame retardant, and a needle flame resistant flame retardant adhesive tape and glue using the compound flame retardant, so as to improve the needle flame resistant performance and the flame retardant performance of the adhesive tape.
According to one aspect of the invention, there is provided a compounded flame retardant: the flame retardant comprises 10-25 parts by weight of nitrogen flame retardant and 8-20 parts by weight of phosphorus flame retardant, wherein the nitrogen flame retardant comprises melamine and at least one of salt and dicyandiamide, and the phosphorus flame retardant comprises at least one of red phosphorus, ammonium phosphate, aluminum hypophosphite, diethyl aluminum phosphinate, polyphosphoric acid and phosphate.
The compound flame retardant provided by the invention has good flame retardant effect, and in the compound flame retardant provided by the invention: the related nitrogen flame retardant is decomposed to generate N when being heated2、NH3、CO2、H2O、NO2The incombustible gas can dilute the concentration of combustible substances generated by the thermal decomposition of the polymer and oxygen in the air, and meanwhile, the flame retardant can absorb heat in the decomposition process to reduce the temperature of the surface of the high polymer materialOn the other hand, nitrogen oxides generated by combustion, oxidation and decomposition can capture free radicals, inhibit chain reaction of high polymer materials, and prevent flame from spreading, so as to achieve the purpose of flame retardance. The related phosphorus flame retardant can generate a free radical trapping agent PO & and H & HO & lt- & gt of a trapping chain reaction during combustion, so that the effect of inhibiting combustion is achieved; on the other hand, the phosphorus-containing compound generated by the thermal decomposition of the phosphorus flame retardant can cover the surface of the polymer to form a protective layer; meanwhile, the phosphoric acid compound has a dehydration function, so that the polymer can be dehydrated and carbonized, a compact carbon layer is formed on the surface, the heat transfer between the environment and the polymer is hindered, and the flame retardant effect is achieved. According to the invention, the nitrogen flame retardant and the phosphorus flame retardant with specific components are compounded, and the obtained compounded flame retardant is applied to the preparation of the adhesive layer of the adhesive tape, so that the adhesive layer has good needle flame resistance, and the adhesive tape with the adhesive layer can resist the needle flame combustion for at least 60 seconds without generating a burning crack phenomenon.
Preferably, the nitrogen-based flame retardant is melamine and the phosphorus-based flame retardant is phosphate. In the scheme, melamine is used as a main agent in the compound flame retardant, so that the compound flame retardant has the needle flame resistance obviously superior to other flame retardants, and the phosphate is compounded for use, so that the needle flame resistance is further improved.
Preferably, the phosphate ester is selected from at least one of bisphenol a bis (diphenyl phosphate), resorcinol bis (diphenyl phosphate), and triphenyl phosphate. In the scheme, the compound flame retardant is prepared by compounding phosphate ester with a specific component, and the obtained compound flame retardant is applied to the preparation of the adhesive layer of the adhesive tape, so that the adhesive layer has good flame retardant property, and the adhesive tape with the adhesive layer can pass a UL94V-0 fire resistance test.
Preferably, the compound flame retardant also comprises 0-10 parts by weight of inorganic flame retardant; the inorganic flame retardant includes at least one of aluminum hydroxide, magnesium hydroxide, expanded graphite, and borate. In the compound flame retardant provided by the invention, the related inorganic flame retardant generally plays a flame retardant role by a gas phase or condensed phase flame retardant mechanism, and is specifically represented as the inorganic flame retardant produced by thermal decompositionThe raw water vapor can reduce the combustion temperature; release H2O、N2、CO2、NH3The non-combustible gas can dilute the concentration of the combustible gas; the pyrolysis product can promote the surface carbonization of the polymer to form a carbonized layer to block heat exchange; solid oxide powder or nonvolatile viscous liquid generated by decomposition is attached to the surface of the material to play a role in blocking heat and gas exchange; in addition, the inorganic flame retardant also has excellent smoke suppression effect.
Preferably, the particle size D90 of the flame retardant is 1-30 μm.
According to a second aspect of the invention, the needle flame resistant flame retardant adhesive tape is provided with a flame retardant adhesive layer, and the raw materials for preparing the flame retardant adhesive layer comprise 10-50 parts of the compound flame retardant and 50-130 parts of a colloid component according to parts by weight. The needle flame resistant flame retardant adhesive tape provided by the invention has excellent flame retardant property, prevents molten drops, has good needle flame resistant property, enables the adhesive tape to have higher safety performance, and reduces the safety risk of the adhesive tape in practical application.
Preferably, the gum component comprises the following materials in parts by weight: 50-100 parts of polyacrylate resin, 5-20 parts of tackifying resin and 0.1-2 parts of cross-linking agent. Under the common condition, the addition of the flame retardant can reduce the peeling performance of the adhesive tape to a certain extent, and the colloid component with the specific component is selected, so that the provided adhesive tape still has excellent bonding strength after the compound flame retardant is added, the peeling strength is high, and the warping risk in the application process of the adhesive tape is reduced.
Preferably, the polyacrylate resin has an elastic modulus > 20000 Pa.
Preferably, the tackifying resin comprises at least one of a rosin resin, a terpene-phenolic resin, and a petroleum resin.
Preferably, the cross-linking agent comprises at least one of hydroxymethyl resin, polyisocyanate, epoxy resin, metal salts and chelates, and metal organic compounds.
Preferably, the thickness of the flame retardant glue layer is 10-80 μm.
Preferably, the needle flame resistant flame retardant adhesive tape further comprises a polyimide substrate, and the polyimide substrate is compounded with the flame retardant adhesive layer.
Preferably, the polyimide substrate has a thickness of 10 to 50 μm.
Preferably, the needle flame resistant flame retardant adhesive tape further comprises a release film, and two opposite surfaces of the flame retardant adhesive layer are respectively compounded with the polyimide substrate and the release film.
Preferably, the release film is made of PET.
Preferably, the thickness of the release film is 30 to 100 μm.
According to a third aspect of the invention, the glue is provided, which comprises the following raw materials in parts by weight: 10-50 parts of the compound flame retardant, 50-130 parts of a colloid component and 50-300 parts of an organic solvent.
Preferably, the organic solvent comprises at least one of benzene, toluene, ethyl acetate, butyl acetate, methyl isobutyl ketone, and ethylene dichloride. The added organic solvent enables all components to be fully mixed and dissolved in the preparation process of the flame-retardant adhesive layer, so that the coating is convenient, the performance of the coating film is improved, and meanwhile, the adhesive force of the flame-retardant adhesive layer to a base material can be improved.
Drawings
Fig. 1 is a schematic structural view of the needle flame resistant flame retardant tape of the present invention.
The reference signs are: 1 base material, 2 flame-retardant glue layers and 3 release films.
Detailed Description
Technical features in the technical solutions provided by the present invention are further clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The preparation method of the needle flame resistant flame retardant adhesive tape specifically comprises the following steps:
(1) dissolving 70 parts of polyacrylate resin, 22 parts of melamine, 12 parts of bisphenol A bis (diphenyl phosphate), 7 parts of terpene resin and 0.5 part of epoxy resin in 100 parts of ethyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing the flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of melamine and bisphenol A bis (diphenyl phosphate) is 9.85 μm, and the elastic modulus of the polyacrylate resin is 32000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Example 2
This example differs from example 1 only in that the raw materials used to prepare the flame-retardant glue layer 2 do not contain melamine and bisphenol a bis (diphenyl phosphate), and is otherwise the same as example 1.
Example 3
This example differs from example 1 only in that the raw materials for preparing the flame-retardant glue layer 2 do not contain bisphenol a bis (diphenyl phosphate), and the rest is the same as example 1.
Example 4
This example differs from example 1 only in that the raw materials used to make the flame-retardant glue layer 2 do not contain melamine, and is otherwise the same as example 1.
Example 5
This example differs from example 1 only in that dicyandiamide is used instead of the raw material melamine used to make the flame-retardant glue layer 2, and is otherwise the same as example 1.
Example 6
This example differs from example 1 only in that resorcinol bis (diphenyl phosphate) is used instead of the raw material bisphenol a bis (diphenyl phosphate) used for the preparation of the flame retardant glue layer 2, and the rest is the same as example 1.
Example 7
This example differs from example 1 only in that triphenyl phosphate is used instead of bisphenol a bis (diphenyl phosphate) which is the raw material for the flame-retardant glue layer 2, and the rest is the same as example 1.
Example 8
This example is different from example 1 only in that the raw material for preparing the flame retardant glue layer 2 further includes 10 parts of aluminum hydroxide, and the rest is the same as example 1.
Example 9
The preparation method of the needle flame resistant flame retardant adhesive tape specifically comprises the following steps:
(1) dissolving 100 parts of polyacrylate resin, 10 parts of melamine, 20 parts of bisphenol A bis (diphenyl phosphate), 5 parts of terpene resin and 2 parts of epoxy resin in 300 parts of ethyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing a flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of melamine and bisphenol A bis (diphenyl phosphate) is 30 μm, and the elastic modulus of the polyacrylate resin is 25000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Example 10
The preparation method of the needle flame resistant flame retardant adhesive tape specifically comprises the following steps:
(1) dissolving 50 parts of polyacrylate resin, 25 parts of melamine, 8 parts of bisphenol A bis (diphenyl phosphate), 20 parts of terpene resin and 0.1 part of epoxy resin in 50 parts of ethyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing the flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of melamine and bisphenol A bis (diphenyl phosphate) is 1 μm, and the elastic modulus of the polyacrylate resin is 30000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Example 11
(1) Dissolving 70 parts of polyacrylate resin, 22 parts of anhydrous aluminum trichloride, 12 parts of anhydrous phosphorus oxychloride, 7 parts of stearylamine and 0.5 part of aziridine in 100 parts of propyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing the flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of the anhydrous aluminum trichloride and the anhydrous phosphorus oxychloride is 9.85 μm, and the elastic modulus of the polyacrylate resin is 32000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Example 12
(1) Dissolving 70 parts of polyacrylate resin, 22 parts of melamine, 12 parts of bisphenol A bis (diphenyl phosphate), 7 parts of stearylamine and 0.5 part of aziridine in 100 parts of propyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing the flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of melamine and bisphenol A bis (diphenyl phosphate) is 9.85 μm, and the elastic modulus of the polyacrylate resin is 32000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Example 13
The preparation method of the needle flame resistant flame retardant adhesive tape specifically comprises the following steps:
(1) dissolving 70 parts of polyacrylate resin, 22 parts of anhydrous aluminum trichloride, 12 parts of anhydrous phosphorus oxychloride, 7 parts of terpene resin and 0.5 part of epoxy resin in 100 parts of ethyl acetate, and uniformly stirring to obtain flame-retardant glue for preparing the flame-retardant glue layer 2;
the parts of the components are calculated according to the parts by weight;
wherein the particle size D90 of the anhydrous aluminum trichloride and the anhydrous phosphorus oxychloride is 9.85 μm, and the elastic modulus of the polyacrylate resin is 32000 Pa;
(2) and coating the flame-retardant adhesive layer 2 on the substrate 1 through a coating machine, and compositely rolling through a release film 3 to obtain the adhesive tape.
Test example
1. Experimental construction mode
The test subjects used in the test examples were the tapes obtained in examples 1 to 13, and the test subjects were subjected to flame retardancy, pin flame test and peel strength test.
The test method of the test example is as follows:
(1) and (3) testing the flame retardance: the test method and the standard refer to UL94 flame retardant rating test;
(2) and (3) needle flame testing: the test method and the standard refer to GB/T5169-2008, and the flame application time is 60 seconds;
(3) and (3) testing the peel strength: the test method and the standard refer to GB/T2792-2014.
2. Results of the experiment
Table 1 shows the results of the flame retardance, pin flame and peel strength tests
Sample (I) Flame retardant rating Needle flame testing Peel strength
Example 1 V-0 By (without perforation, without crack) 1.33kgf/24mm
Example 2 V-2 Do not pass through 1.74kgf/24mm
Example 3 V-1 Do not pass through 1.59kgf/24mm
Example 4 V-1 Do not pass through 1.52kgf/24mm
Example 5 V-0 By (with slight cracking) 1.31kgf/24mm
Example 6 V-0 By (with slight cracking) 1.27kgf/24mm
Example 7 V-0 By (with slight cracking) 1.28kgf/24mm
Example 8 V-0 By (without perforation, without crack) 1.20kgf/24mm
Example 9 V-0 By (without perforation, without crack) 1.24kgf/24mm
Example 10 V-0 Through (without)Perforation, no crack) 1.27kgf/24mm
Example 11 V-1 Do not pass through 1.02kgf/24mm
Example 12 V-0 By (without perforation, without crack) 1.01kgf/24mm
Example 13 V-1 Do not pass through 1.20kgf/24mm
The test results in table 1 were analyzed to find:
(1) the nitrogen flame retardant and the phosphorus flame retardant are compounded, and the obtained compounded flame retardant is applied to the preparation of the adhesive layer of the adhesive tape, so that the adhesive tape can reach the UL94V-0 flame retardant grade, has good needle flame resistance, can pass a 60-second needle flame test without generating a burning crack phenomenon, and can reduce the safety risk in the application process;
(2) the inorganic flame retardant is added on the basis of the nitrogen flame retardant and the phosphorus flame retardant, and the adhesive tape can still reach the UL94V-0 flame retardant grade and pass a 60-second needle flame test;
(3) the invention selects the colloid component with specific components, so that the prepared adhesive tape has excellent bonding strength, the peel strength is high and can reach more than 1.20kgf/24mm, and the warping risk in the application process can be reduced.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A compound flame retardant is characterized in that: the flame retardant comprises 10-25 parts by weight of nitrogen flame retardant and 8-20 parts by weight of phosphorus flame retardant, wherein the nitrogen flame retardant comprises melamine and at least one of salt and dicyandiamide, and the phosphorus flame retardant comprises at least one of red phosphorus, ammonium phosphate, aluminum hypophosphite, diethyl aluminum phosphinate, polyphosphoric acid and phosphate.
2. The compounded flame retardant of claim 1, wherein: the nitrogen flame retardant is melamine, and the phosphorus flame retardant is phosphate.
3. The compounded flame retardant of claim 2, wherein: the phosphate is at least one selected from bisphenol A bis (diphenyl phosphate), resorcinol bis (diphenyl phosphate) and triphenyl phosphate.
4. The compounded flame retardant of claim 1, wherein: 0-10 parts of inorganic flame retardant; the inorganic flame retardant comprises at least one of aluminum hydroxide, magnesium hydroxide, expanded graphite and borate.
5. The compounded flame retardant of claim 1, wherein: the particle size D90 of the flame retardant is 1-30 μm.
6. A needle flame resistant flame retardant adhesive tape, characterized in that: the flame-retardant adhesive layer is provided, and the raw materials for preparing the flame-retardant adhesive layer comprise 10-50 parts of the compound flame retardant as defined in any one of claims 1-5 and 50-130 parts of a colloid component in parts by weight.
7. The needle flame resistant and flame retardant adhesive tape of claim 6, wherein the gum component comprises the following materials in parts by weight: 50-100 parts of polyacrylate resin, 5-20 parts of tackifying resin and 0.1-2 parts of cross-linking agent.
8. The needle flame resistant flame retardant tape of claim 7, wherein: the elastic modulus of the polyacrylate resin is more than 20000 Pa.
9. The needle flame resistant flame retardant tape of claim 6, wherein: the flame-retardant adhesive layer is characterized by also comprising a polyimide base material, wherein the polyimide base material is compounded with the flame-retardant adhesive layer.
10. The glue is characterized by comprising the following raw materials in parts by weight: 10-50 parts of the compound flame retardant of any one of claims 1-5, 50-130 parts of a colloid component and 50-300 parts of an organic solvent.
CN202110956175.XA 2021-08-19 2021-08-19 Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same Pending CN113817427A (en)

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CN202110956175.XA CN113817427A (en) 2021-08-19 2021-08-19 Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same

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CN202110956175.XA CN113817427A (en) 2021-08-19 2021-08-19 Compound flame retardant, and needle flame resistant flame retardant adhesive tape and glue using same

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108199A (en) * 2009-12-28 2011-06-29 合肥杰事杰新材料有限公司 Halogen-free flame-retardant polycarbonate/styrene base resin composition and preparation method thereof
CN103387713A (en) * 2013-08-08 2013-11-13 上海日之升新技术发展有限公司 Halogen-free flame-retardant reinforced polyphenylene oxide/polypropylene alloy material and preparation method thereof
WO2014118878A1 (en) * 2013-01-29 2014-08-07 株式会社寺岡製作所 Flame-retardant adhesive tape, and adhesive tape for bundling cable harnesses
CN108138016A (en) * 2015-10-15 2018-06-08 3M新设资产公司 Halogen-free flame-retardant adhesive composition and the adhesive tape comprising the composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108199A (en) * 2009-12-28 2011-06-29 合肥杰事杰新材料有限公司 Halogen-free flame-retardant polycarbonate/styrene base resin composition and preparation method thereof
WO2014118878A1 (en) * 2013-01-29 2014-08-07 株式会社寺岡製作所 Flame-retardant adhesive tape, and adhesive tape for bundling cable harnesses
CN103387713A (en) * 2013-08-08 2013-11-13 上海日之升新技术发展有限公司 Halogen-free flame-retardant reinforced polyphenylene oxide/polypropylene alloy material and preparation method thereof
CN108138016A (en) * 2015-10-15 2018-06-08 3M新设资产公司 Halogen-free flame-retardant adhesive composition and the adhesive tape comprising the composition

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