CN114561161A - High-sealing-performance composite multifunctional adhesive tape - Google Patents
High-sealing-performance composite multifunctional adhesive tape Download PDFInfo
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- CN114561161A CN114561161A CN202111560754.9A CN202111560754A CN114561161A CN 114561161 A CN114561161 A CN 114561161A CN 202111560754 A CN202111560754 A CN 202111560754A CN 114561161 A CN114561161 A CN 114561161A
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- 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
- C09J7/28—Metal sheet
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- 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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- 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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
- C09J183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- 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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/16—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
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- 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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- 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
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2483/00—Presence of polysiloxane
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a high-tightness composite multifunctional adhesive tape, which comprises: sealing the adhesive layer; a fire barrier layer, the fire barrier layer comprising: the heat insulation layer is bonded above the sealing bonding layer, the flame retardant layer is bonded above the heat insulation layer, and an aluminum foil substrate is bonded above the flame retardant layer; and a release layer attached below the sealing adhesive layer; wherein a plurality of strip-shaped bulges are arranged above the release layer and are not communicated with each other, and the bulges are coated with a mixture of lithium powder and a drying agent for absorbing moisture. Through the setting, make the sticky tape have good leakproofness to still can maintain higher viscidity under the high temperature condition, have the advantage that the reliability is high, the aluminium foil substrate makes sticky tape surface easily clean, and fire behaviour is splendid, corrosion-resistant and prevent that the thorn energy-absorbing is better, and fire-retardant layer and insulating layer cooperation can reduce the influence of high temperature to sealing bonding layer adhesive property in short time, guarantee the adhesive bonding ability.
Description
Technical Field
The invention relates to the technical field of adhesive tapes, in particular to a high-sealing-performance composite multifunctional adhesive tape.
Background
With the development of industrial industry, the adhesive tape is widely applied in the fields of electronics, computers, household appliances and the like, the adhesive tape is widely applied to various fields with good bonding performance, the viscosity of the adhesive tape is regarded as an important index for measuring the quality of the adhesive tape by people, but the matching of the functions of the adhesive tape is not perfect in many adhesive tape application occasions. At present, the flame-retardant adhesive tape is few in variety, the relative application requirement difference is large, the existing flame-retardant adhesive tape is not good in sealing performance, the viscosity can be rapidly lost at high temperature, the adhesive tape is caused to lose efficacy, and serious loss is easily caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides the high-sealing composite multifunctional adhesive tape which has good sealing performance, can still maintain higher viscosity under a high-temperature condition and has the advantage of high reliability.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a high-sealability composite multifunctional adhesive tape comprising:
sealing the adhesive layer;
a fire barrier layer, the fire barrier layer comprising: the heat insulation layer is bonded above the sealing bonding layer, the flame retardant layer is bonded above the heat insulation layer, and an aluminum foil substrate is bonded above the flame retardant layer; and the number of the first and second groups,
a release layer attached below the sealing adhesive layer;
wherein be provided with a plurality of bar archs from the top on type layer, the bar arch is not each other communicated.
As a preferable aspect of the present invention, the sealing adhesive layer includes the following components and contents: 22-32 parts of plasticizer, 30-40 parts of silicone rubber, 8-15 parts of inert filler, 8-18 parts of antioxidant and 22-32 parts of tackifying resin, wherein the contents are calculated according to weight.
In a preferred embodiment of the present invention, the plasticizer is one or more of 1, 5-diazido-3-oxapentane, 1, 8-diazido-3, 6-dioxaoctane, butyl epoxyoleate, methyl pentachlorodistearate and tricresyl phosphate TCP.
In a preferred embodiment of the present invention, the silicone rubber is methylvinyltrifluoropropyl silicone rubber or borosilicate silicone rubber.
As a preferable scheme of the invention, the inert filler is a combination of two or more of montmorillonite, ground calcium carbonate, lignin-type rubber reinforcing agent and mica powder.
In a preferred embodiment of the present invention, the antioxidant is one or more of diphenylamine, hydroquinone and thiobisphenol, and the tackifying resin is one or more of coumarone-indene resin, hydrogenated C5 petroleum resin and terpene phenolic resin.
As a preferred aspect of the present invention, the protrusions are coated with a mixture of lithium powder and a desiccant for absorbing moisture, the lithium powder and the desiccant being, by mass: 60 parts of lithium powder and 40 parts of drying agent, wherein the particle size of the lithium powder is 50-100 mu m.
Realize above-mentioned technical scheme, clean attached face earlier, peel off and bond sealing bonding layer to attached face fast behind the type layer, because sealing bonding layer laminates in from the type layer, have with the protruding sunken of fitting mutually of type layer, lithium powder and drier glue in sunken inside, sealing bonding layer is sealed and is formed with the cavity with attached face, moisture in the drier adsorbed cavity, the oxygen and the nitrogen gas emergence reaction of air in lithium powder and the cavity, generate lithium oxide and lithium nitride, make the cavity internal gas pressure compare for the negative pressure with external atmospheric pressure, thereby increase sealing bonding layer's absorption and sealing force.
As a preferable scheme of the present invention, the thermal insulation layer comprises the following components and contents: 20-25 parts of phenolic modified epoxy resin, 30-36 parts of caged phosphate, phosphonate or phosphite ester, 15-24 parts of stearamide and 12-15 parts of titanium dioxide.
As a preferred scheme of the invention, the flame-retardant layer is fireproof silica gel cloth.
As a preferable scheme of the invention, the preparation method comprises the following steps:
step 1: adding raw materials including a plasticizer, silicon rubber, an inert filler, an antioxidant and tackifying resin into a reaction kettle, melting and mixing, and calendering to obtain a sealing bonding layer;
step 2: coating a mixture of lithium powder and a drying agent on the bulges of the release layer under the vacuum condition, raising the temperature of the vacuum environment to 110-125 ℃ within 5min, and calendering and compounding the sealing adhesive layer above the release paper;
and step 3: taking out the release layer and the sealing adhesive layer to a drying room, coating the heat-insulating layer on the sealing adhesive layer, and performing air draft drying; coating the flame-retardant layer on the heat-insulating layer, and keeping the temperature at 50-60 ℃;
and 4, step 4: and bonding the flame-retardant layer on an aluminum foil substrate, applying pressure for 10-15min and drying at the same time to obtain a finished product.
In conclusion, the invention has the following beneficial effects:
the invention provides a high-sealing composite multifunctional adhesive tape, which has good flame-retardant property, the flame-retardant layer can provide heat insulation and flame-retardant property, the flame-retardant property of the composite adhesive tape is effectively improved, the heat transmission of the external temperature to the sealing adhesive layer is reduced by the heat-insulating layer, the influence of short-time high temperature on the adhesive property of the sealing adhesive layer can be reduced by the matching of the flame-retardant layer and the heat-insulating layer, the adhesive capacity is ensured, the flame-retardant grade of the adhesive tape reaches FV-0 grade and the self-adhesive force reaches more than 8N/cm through detection, higher self-adhesive force can still be kept after 5min at the high temperature of 200 ℃, lithium powder reacts with oxygen and nitrogen in the air in the cavity to generate lithium oxide and lithium nitride, so that the air pressure in the cavity is negative pressure compared with the external atmospheric pressure, the adsorption and the sealing force of the sealing adhesive layer are increased, and the surface of the adhesive tape is easy to clean by the aluminum foil base material, excellent flame retardant property, corrosion resistance, puncture resistance and energy absorption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a release layer; 2. a protrusion; 3. sealing the adhesive layer; 4. a thermal insulation layer; 5. a flame retardant layer; 6. an aluminum foil substrate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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
As shown in fig. 1, a composite multifunctional adhesive tape with high sealing performance comprises:
a seal adhesive layer 3; the flame retardant coating, the flame retardant coating includes: the heat insulation layer 4 is bonded above the sealing bonding layer 3, the flame retardant layer 5 is bonded above the heat insulation layer 4, and the aluminum foil substrate 6 is bonded above the flame retardant layer 5; and a release layer 1 attached below the sealing adhesive layer 3; wherein be provided with a plurality of bar arch 2 from the top on type layer 1, bar arch 2 each other do not communicate.
Wherein, the sealing adhesive layer 3 comprises the following components and contents: 22 parts of plasticizer, 30 parts of silicon rubber, 8 parts of inert filler, 8 parts of antioxidant and 22 parts of tackifying resin, wherein the plasticizer is one or more of 1, 5-diazido-3-oxapentane, 1, 8-diazido-3, 6-dioxaoctane, butyl epoxy oleate, methyl pentachlorodistearate and tricresyl phosphate TCP by weight, the silicon rubber is methyl vinyl trifluoropropyl silicon rubber or silicon boron rubber, and the inert filler is a combination of two or more of montmorillonite, heavy calcium carbonate, lignin type rubber reinforcing agent and mica powder.
Further, the antioxidant is one or more of diphenylamine, hydroquinone and thiobisphenol, the tackifying resin is one or more of coumarone-indene resin, hydrogenated C5 petroleum resin and terpene phenolic resin, the protrusions 2 are coated with a mixture of lithium powder and a drying agent for absorbing moisture, and the lithium powder and the drying agent are as follows by mass: 60 parts of lithium powder, 40 parts of drying agent, the particle diameter of lithium powder is 50-100 mu m, clean the attached face earlier, peel off and bond sealing bonding layer 3 to attached face fast behind type layer 1, because sealing bonding layer 3 laminates in type layer 1, have with the sunken of the protruding 2 looks adaptations of type layer 1, lithium powder and drying agent glue in sunken inside, sealing bonding layer 3 seals and is formed with the cavity with attached face, moisture in the desiccator absorption cavity, the oxygen and the nitrogen gas of lithium powder and cavity air react, generate lithium oxide and lithium nitride, make the cavity internal gas pressure compare for the negative pressure with external atmospheric pressure, thereby increase the absorption and the sealing power of sealing bonding layer 3, insulating layer 4 includes following component and content: 20-25 parts of phenolic modified epoxy resin, 30-36 parts of caged phosphate, phosphonate or phosphite ester, 15-24 parts of stearamide and 12-15 parts of titanium dioxide, wherein the flame retardant layer 5 is fireproof silica gel cloth.
The preparation method comprises the following steps:
step 1: adding raw materials including a plasticizer, silicon rubber, an inert filler, an antioxidant and tackifying resin into a reaction kettle, melting and mixing, and calendering to obtain a sealing bonding layer 3;
step 2: coating a mixture of lithium powder and a drying agent on the bulges 2 of the release layer 1 under a vacuum condition, raising the temperature of a vacuum environment to 110-125 ℃ within 5min, and calendering and compounding the sealing adhesive layer 3 above the release paper;
and step 3: taking out the release layer 1 and the sealing adhesive layer 3 to a drying room, coating the heat insulation layer 4 on the sealing adhesive layer 3, and performing air draft drying; coating the flame-retardant layer 5 on the heat-insulating layer 4, and keeping the temperature at 50-60 ℃;
and 4, step 4: and (3) bonding the flame-retardant layer 5 to an aluminum foil base material 6, applying pressure for 10-15min and drying at the same time to obtain a finished product.
Example 2
The difference between this embodiment and embodiment 1 is that the seal adhesive layer 3 includes the following components and contents: 32 parts of plasticizer, 40 parts of silicone rubber, 15 parts of inert filler, 18 parts of antioxidant and 32 parts of tackifying resin, wherein the plasticizer is preferably a mixture of 1, 5-diazido-3-oxapentane and tricresyl phosphate TCP in parts by weight: 30 parts of 1, 5-diazido-3-oxapentane, 70 parts of tricresyl phosphate TCP, preferably silicon boron rubber, and the inert filler is a combination of montmorillonite and lignin type rubber reinforcing agents, wherein the mass numbers of the components are as follows: 50 parts of montmorillonite and 30 parts of lignin type rubber reinforcing agent, wherein the antioxidant is preferably thiobisphenol, and the tackifying resin is preferably a mixture of coumarone-indene resin and hydrogenated C5 petroleum resin, and the mass numbers of the components are as follows: 60 parts of coumarone-indene resin and 30 parts of hydrogenated C5 petroleum resin, wherein the heat insulation layer 4 comprises the following components in parts by weight: 25 parts of phenolic aldehyde modified epoxy resin, 36 parts of caged phosphate, phosphonate or phosphite ester, 24 parts of stearamide and 15 parts of titanium dioxide.
The preparation method comprises the following steps:
step 1: adding raw materials including a plasticizer, silicon rubber, an inert filler, an antioxidant and tackifying resin into a reaction kettle, melting and mixing, and calendering to obtain a sealing bonding layer 3;
and 2, step: coating a mixture of lithium powder and a drying agent on the bulges 2 of the release layer 1 under a vacuum condition, raising the temperature of a vacuum environment to 122 ℃ within 5min, and laminating and compounding the sealing adhesive layer 3 above release paper;
and step 3: taking out the release layer 1 and the sealing adhesive layer 3 to a drying room, coating the heat insulation layer 4 on the sealing adhesive layer 3, and performing air draft drying; coating the flame-retardant layer 5 on the heat-insulating layer 4, and keeping the temperature at 55 ℃;
and 4, step 4: and (3) bonding the flame-retardant layer 5 to an aluminum foil substrate 6, applying pressure for 13min and drying at the same time to obtain a finished product.
The invention provides a high-sealing composite multifunctional adhesive tape, which has good flame retardant property, a flame retardant layer 5 can provide heat insulation and flame retardant property, the flame retardant property of the composite adhesive tape is effectively improved, a heat insulation layer 4 reduces the heat transfer of the external temperature to a sealing adhesive layer 3, the flame retardant layer 5 and the heat insulation layer 4 can be matched to reduce the influence of short-time high temperature on the adhesive property of the sealing adhesive layer 3 and ensure the adhesive capacity, through detection, the flame retardant grade of the adhesive tape reaches UL94 FV-0 grade, the self-adhesive force reaches more than 8N/cm, higher self-adhesive force can still be kept after 5min at the high temperature of 200 ℃, lithium powder reacts with oxygen and nitrogen in the air in a cavity to generate lithium oxide and lithium nitride, so that the pressure of the cavity is negative compared with the external atmospheric pressure, the adsorption and the sealing force of the sealing adhesive layer 3 are increased, an aluminum foil base material 6 enables the surface of the adhesive tape to be easy to clean, excellent flame retardant performance, corrosion resistance, puncture resistance and good energy absorption.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-sealing composite multifunctional adhesive tape is characterized by comprising:
sealing the adhesive layer;
a fire barrier layer, the fire barrier layer comprising: the heat insulation layer is bonded above the sealing bonding layer, the flame retardant layer is bonded above the heat insulation layer, and an aluminum foil substrate is bonded above the flame retardant layer; and the number of the first and second groups,
a release layer attached below the sealing adhesive layer;
wherein a plurality of strip-shaped bulges are arranged above the release layer and are not communicated with each other.
2. The composite multifunctional adhesive tape with high sealability of claim 1, wherein the sealing adhesive layer comprises the following components and contents: 22-32 parts of plasticizer, 30-40 parts of silicone rubber, 8-15 parts of inert filler, 8-18 parts of antioxidant and 22-32 parts of tackifying resin, wherein the contents are calculated according to weight.
3. The multifunctional composite adhesive tape with high sealability as claimed in claim 2, wherein the plasticizer is one or more of 1, 5-diazido-3-oxapentane, 1, 8-diazido-3, 6-dioxaoctane, butyl epoxyoleate, methyl pentachlorohtearate and tricresyl phosphate TCP.
4. The composite multifunctional adhesive tape with high sealability as claimed in claim 2, wherein the silicone rubber is methyl vinyl trifluoropropyl silicone rubber or silicon boron rubber.
5. The composite multifunctional adhesive tape with high sealing performance as claimed in claim 2, wherein the inert filler is a combination of two or more of montmorillonite, ground limestone, lignin-type rubber reinforcing agent and mica powder.
6. The composite multifunctional adhesive tape with high sealability of claim 2, wherein the antioxidant is one or more of diphenylamine, hydroquinone and thiobisphenol, and the tackifying resin is one or more of coumarone-indene resin, hydrogenated C5 petroleum resin and terpene phenolic resin.
7. The multifunctional composite adhesive tape with high sealability of claim 6, wherein the protrusions are coated with a mixture of lithium powder and a desiccant for absorbing moisture, wherein the lithium powder and the desiccant are the following components by mass: 60 parts of lithium powder and 40 parts of drying agent, wherein the particle size of the lithium powder is 50-100 mu m.
8. The composite multifunctional adhesive tape with high sealing property according to claim 7, wherein the heat insulation layer comprises the following components in percentage by weight: 20-25 parts of phenolic modified epoxy resin, 30-36 parts of caged phosphate, phosphonate or phosphite ester, 15-24 parts of stearamide and 12-15 parts of titanium dioxide.
9. The composite multifunctional adhesive tape with high sealing property according to claim 7, wherein the flame-retardant layer is fireproof silica gel cloth.
10. The composite multifunctional adhesive tape with high sealing property according to claim 9, characterized in that the preparation method comprises the following steps:
step 1: adding raw materials including a plasticizer, silicon rubber, an inert filler, an antioxidant and tackifying resin into a reaction kettle, melting and mixing, and calendering to obtain a sealing bonding layer;
step 2: coating a mixture of lithium powder and a drying agent on the bulges of the release layer under the vacuum condition, raising the temperature of the vacuum environment to 110-125 ℃ within 5min, and calendering and compounding the sealing adhesive layer above the release paper;
and step 3: taking out the release layer and the sealing adhesive layer to a drying room, coating the heat insulation layer on the sealing adhesive layer, and performing air draft drying; coating the flame-retardant layer on the heat-insulating layer, and keeping the temperature at 50-60 ℃;
and 4, step 4: and (3) bonding the flame-retardant layer on an aluminum foil base material, applying pressure for 10-15min and drying at the same time to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111560754.9A CN114561161A (en) | 2021-12-20 | 2021-12-20 | High-sealing-performance composite multifunctional adhesive tape |
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