WO2017133121A1 - 应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂 - Google Patents

应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂 Download PDF

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Publication number
WO2017133121A1
WO2017133121A1 PCT/CN2016/081908 CN2016081908W WO2017133121A1 WO 2017133121 A1 WO2017133121 A1 WO 2017133121A1 CN 2016081908 W CN2016081908 W CN 2016081908W WO 2017133121 A1 WO2017133121 A1 WO 2017133121A1
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WO
WIPO (PCT)
Prior art keywords
sensitive adhesive
melt pressure
polyvinyl chloride
acrylate
insulating tape
Prior art date
Application number
PCT/CN2016/081908
Other languages
English (en)
French (fr)
Inventor
王凤
齐淑琴
李爽
Original Assignee
河北永乐胶带有限公司
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.)
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=56228900&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017133121(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 河北永乐胶带有限公司 filed Critical 河北永乐胶带有限公司
Priority to EP21178815.3A priority Critical patent/EP3916064B1/en
Priority to JP2018541363A priority patent/JP6861215B2/ja
Priority to EP16888943.4A priority patent/EP3412741B1/en
Priority to CN201680002203.1A priority patent/CN107960097B/zh
Priority to KR1020187025099A priority patent/KR102521225B1/ko
Priority to US16/074,608 priority patent/US20190055433A1/en
Priority to ES16888943T priority patent/ES2879991T3/es
Publication of WO2017133121A1 publication Critical patent/WO2017133121A1/zh
Priority to US17/145,537 priority patent/US20210371709A1/en

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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
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/245—Vinyl resins, e.g. polyvinyl chloride [PVC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of 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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • 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
    • C—CHEMISTRY; METALLURGY
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    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J133/00—Adhesives 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
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
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    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • C—CHEMISTRY; METALLURGY
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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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • 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
    • 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
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/35—Heat-activated
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • 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
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0893—Zinc
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/07—Aldehydes; Ketones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0869—Acids or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C08L67/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional 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
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
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    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/416—Additional features of adhesives in the form of films or foils characterized by the presence of essential components use of irradiation
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    • C09J2427/006—Presence of halogenated polymer in the substrate
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Definitions

  • the invention relates to the technical field of chemistry and chemical industry, in particular to an ultraviolet light crosslinking hot melt pressure sensitive adhesive applied to a polyvinyl chloride insulating tape, and more particularly to a novel application to a soft polyvinyl chloride insulating tape. (Including ordinary civil electrical insulating tape and insulating tape for automobile wiring harness) UV-crosslinking hot melt pressure sensitive adhesive.
  • the adhesives described in this patent have good resistance to plasticizer migration from soft polyvinyl chloride to adhesives, long-term storage of tape or 60- After baking at a high temperature of 80 ° C, the plasticizer of the substrate diffuses and migrates to the adhesive layer, but does not cause great deterioration of the performance of the adhesive tape, and the adhesive tape can still maintain good performance and is completely satisfied. Its use requirements.
  • the water-soluble adhesive is environmentally friendly because it does not contain a solvent, but its high temperature resistance is general, and the coating equipment has a large area and consumes a large amount of energy.
  • hot melt pressure sensitive adhesives especially UV crosslinked hot melt pressure sensitive adhesives
  • UV crosslinked hot melt pressure sensitive adhesives have been widely used in the field of automotive wire harness tapes due to their high temperature resistance, solvent resistance and environmental protection, and hot melt adhesive coating.
  • the equipment has a small footprint and low energy consumption.
  • Ultraviolet cross-linked hot melt pressure sensitive adhesives popular on the market eg RC21171, etc.
  • the present invention provides an ultraviolet light crosslinking hot melt pressure sensitive adhesive applied to a polyvinyl chloride insulating tape, and more specifically to provide a novel application to soft polyvinyl chloride.
  • UV-crosslinking hot-melt pressure-sensitive adhesive for insulating tape which overcomes the disadvantages of high energy consumption caused by solvent-based adhesive coating, and has achieved significant social benefits in production energy saving; solved CN 101372607B
  • the adhesive in the medium cannot withstand the problem of high temperature, and the invention is
  • the automotive wire harness soft polyvinyl chloride adhesive tape manufactured by the ultraviolet light-crosslinking hot melt pressure sensitive adhesive (hereinafter referred to as "adhesive of the present invention") has a major breakthrough in high temperature resistance, and has long-term temperature resistance. With a rating of 125 ° C and a maximum short-term withstand temperature of up to 150 ° C, it can be used in high temperature areas in the engine compartment of a car.
  • An ultraviolet light-crosslinking hot-melt pressure-sensitive adhesive applied to a polyvinyl chloride insulating tape according to the present invention the main components thereof comprising an ethylenic monomer, a functional monomer, a soft monomer, and a photoinitiator Polymers, polymerization initiators and antioxidants.
  • the ultraviolet cross-linking hot melt pressure sensitive adhesive applied to the polyvinyl chloride insulating tape further comprises a copolymer of one or more polymerizable photoinitiators and an acrylate monomer, or A mixture of oligomers and acrylate polymers of one or more polymerizable photoinitiators.
  • the ethylenic monomer is selected from the group consisting of n-butyl acrylate, 2-ethylhexyl acrylate, n-octyl acrylate, isobornyl acrylate, n-dodecyl acrylate, n-butyl methacrylate,
  • the olefinic monomer is used in an amount of 40 to 65% by total.
  • the functional monomer is a nitrogen-containing functional monomer, preferably N-vinylpyrrolidone, in an amount of from 2 to 10% by total.
  • the soft monomer is C17 acrylate or methacrylate in an amount of from 5 to 15% of the total.
  • the photoinitiator is an acetophenone or benzophenone derivative containing a methacryloxy group or an acryloyloxy group (for example, 2-hydroxy-4-(methacryloyloxy) Benzophenone, etc., in an amount of 2-10% of the total amount.
  • the ultraviolet light crosslinking hot melt pressure sensitive adhesive applied to the polyvinyl chloride insulating tape further comprises a tackifying resin
  • the tackifying resin comprises a rosin resin, a terpene resin, a petroleum resin and corresponding
  • One or more of the hydrogenated, esterified modified resins are used in an amount of from 2 to 20% by weight based on the total amount.
  • the polymerization initiator includes an azo compound, an acyl peroxide, and an alkyl peroxide, and the azo compound is 2,2-azobisisobutyronitrile, the acyl peroxide and an alkane.
  • the base peroxide is benzoyl peroxide, didecanoyl peroxide or isodecanoyl peroxide; benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate,
  • the polymerization initiator is used in an amount of from 1 to 10% by weight based on the total amount.
  • the antioxidant is an aromatic antioxidant, a hindered phenol antioxidant or a secondary antioxidant, and the amount thereof is 0.5-1.5% of the total amount.
  • the antioxidant is diphenylamine, p-diphenylamine, antioxidant 1010, and antioxidant 1076.
  • the adhesion of the adhesive of the present invention to the polyvinyl chloride material is increased, and the polyvinyl chloride adhesive tape is easily degummed after being heated at a high temperature.
  • the problem is that the softness of the adhesive is improved by adding a multi-carbon special soft monomer to the inventive adhesive.
  • composition of the ultraviolet light-crosslinking hot melt pressure-sensitive adhesive provided by the present invention, in addition to the above various components, a copolymer of one or more polymerizable photoinitiators and an acrylate monomer, or Also included is a mixture of oligomers and acrylate polymers of one or more polymerizable photoinitiators.
  • the oligomer containing a polymerizable photoinitiator can lower the viscosity of the hot melt pressure sensitive adhesive, thereby lowering the coating temperature and better protecting the polyvinyl chloride material which is easily deformed at a high temperature.
  • acrylate monomer in addition to the commonly used n-butyl acrylate, isooctyl acrylate, acrylic acid, A
  • N-vinylpyrrolidone N-vinylpyrrolidone
  • C17 acrylate or methacrylate from BASF is added to the adhesive of the present invention.
  • the ultraviolet cross-linked hot melt pressure sensitive adhesive provided by the present invention must also contain one or more photoinitiators, and the most commonly used photoinitiators are derivatives of acetophenone and benzophenone.
  • the photoinitiator generates a radical group under the irradiation of ultraviolet light, more specifically under the irradiation of UVC, thereby further polymerizing the acrylate monomer in the adhesive of the present invention and producing the acrylate polymer. Crosslink and solidify.
  • the polymerizable photoinitiator is an acetophenone or benzophenone derivative containing a methacryloxy group or an acryloyloxy group, for example, 2-hydroxy-4-(methacryloyloxy)benzophenone .
  • the use of a high molecular weight photoinitiator in the composition of the ultraviolet crosslinked hot melt pressure sensitive adhesive can further reduce the volatility of the adhesive layer, so that the adhesive of the present invention can better meet environmental protection requirements.
  • the tackifier resin contained in the adhesive of the present invention includes a rosin resin, a terpene resin, a petroleum resin, and a corresponding hydrogenated, esterified modified resin thereof and the like.
  • an appropriate amount of an anti-aging agent is usually added.
  • the antioxidant contained in the adhesive of the present invention is an aromatic antioxidant, a hindered phenol antioxidant, and an auxiliary antioxidant, for example, diphenylamine, p-diphenylamine antioxidant 1010, and antioxidant 1076.
  • the polymerization initiator contained in the adhesive of the present invention includes an azo compound, a ketone peroxide, and an alkyl peroxide;
  • the solvent used in the adhesive of the present invention is ethyl acetate, a ketone (such as acetone, methyl ethyl ketone).
  • an alcohol such as methanol, ethanol, propanol, butanol, isobutanol
  • toluene xylene, etc. or a mixture of the above solvents.
  • the ultraviolet light-crosslinking hot-melt pressure-sensitive adhesive applied to the polyvinyl chloride insulating tape can bring at least one of the following beneficial effects: 1. Environmentally friendly and excellent in temperature resistance; It is suitable for the wrapping and bundling of cable bundles in different parts of the car body, especially to meet the requirements of the high temperature resistant parts of the engine inside the car. The long-term temperature resistance level reaches 125 °C.
  • the hot-melt coating machine adopts a slit-type extrusion, rolling bar or coating coating process to complete the preparation, and the high-temperature resistant polyvinyl chloride film substrate is mounted on the reel, and Take it to the reel.
  • Set the temperature of the melter to 130-140 °C
  • the temperature of the coating head to 135 °C
  • the ratio of the speed of the pump to the speed of the main machine according to the weight of the glue.
  • the coating amount of the melt pressure sensitive adhesive was 18 g/m 2
  • the adhesive layer was crosslinked and cured by ultraviolet light irradiation of a set of ultraviolet lamps.
  • the ultraviolet lamp used is a high-pressure mercury lamp, a medium-low pressure mercury lamp or an LED lamp, and the minimum irradiation energy of the ultraviolet light needs to reach 10 mJ/cm 2 .
  • the cross-linked cured tape is further subjected to winding and slitting to obtain the high-temperature resistant polyvinyl chloride adhesive tape product.
  • oligomer (B) 50% (wt) of toluene was added to the reactor, heated to boiling and held for 30 minutes, and n-butyl acrylate (BA) 33% (wt), acrylic acid (AA) 1.5% (wt) ) acryloyloxyacetophenone 5% (wt) as a photoinitiator, benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (BOP) 2.5% ( Wt), C17 acrylate (from BASF) 5% (wt), N-vinylpyrrolidone (NVP) 2% (wt) mixed and added dropwise to the reaction kettle, added within 2 hours, after the completion of the addition Add 1% (wt) of antioxidant 1010, continue to maintain the heating state, vacuum the reactor, and release the oligomer (B) for use; polymer A and low The polymer B was mixed (A and B each accounted for 50%), heated to 130° C-buty
  • Example 3 95% by weight of Example 1 and 5% by weight of hydrogenated petroleum resin 1090 (Eastman, USA) was heated to 130 ° C, and stirred and mixed to prepare; a high-temperature resistant polyvinyl chloride adhesive tape was obtained in the same manner as in Example 1.
  • component A is: BA50g, MMA50g, HEA4.5g, AA 2.8g, N-MAM 8.0g
  • component B components are: 2-HEA 20g, DBM 60g, HEA 3.0g, AA 1.7g;
  • emulsion pressure sensitive adhesive 45g of commercially available polyvinyl acetate emulsion is added to 300g of the above synthesized acrylate copolymer emulsion and mixed uniformly, and then the pH value is adjusted by 7-8 with ammonia water.
  • the desired emulsion pressure sensitive adhesive has a solids content of 53%;
  • the initial adhesion, 180° peel strength and low speed unwinding strength of the pressure-sensitive adhesive tapes in Table 1 are in accordance with Chinese national standards GB/T4852-1984, GB/T8451-1998, GB/T2792-1998 and GB/T4850-1984, respectively.
  • the method for measuring the temperature stability is as follows: after winding the wire harness with a pressure-sensitive adhesive tape, it is aged at 150 ° C for 24 hours, and it is observed whether the wire harness is lifted, the tape is loose, and the glue overflows after the aging. The tape is not lifted, not loose, and does not overflow.
  • the softness test method an adhesive tape wrapped around the paper core (outer diameter 36mm, paper core thickness 3-4mm) (width 19- 25mm), length of at least 10 meters, after 20 ⁇ 1 ° C, relative humidity 50 ⁇ 5%
  • the adhesive tape was unwound at a speed of 15-20 cm/sec, the tape was evenly opened, and there was no sound, no stick-slip, and it was judged to be soft; if the unwinding and beating, there was a sound, the judgment was made. It is poor in softness.
  • Example 1-3 and Comparative Examples 1 and 2 it can be seen that the temperature resistance of the soft polyvinyl chloride tape prepared by the ultraviolet cross-linking hot melt pressure sensitive adhesive applied to the soft polyvinyl chloride insulating tape is significantly higher than that of the emulsion.
  • Adhesive tape made of pressure sensitive adhesive.
  • the use of functional monomers increases the adhesion of the adhesive to the polyvinyl chloride and the plasticizer resistance.
  • the addition of special soft monomers improves the softness of the PVC adhesive tape.

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Abstract

本发明提供了一种应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，由烯类单体、官能性单体、特殊软单体和光引发剂的聚合物、增粘树脂和抗氧剂等按一定比例混配制而成，在光引发剂的聚合物的组成中，含有一种或多种可聚合光敏引发剂与丙烯酸酯单体的共聚物,或者是含一种或多种可聚合光敏引发剂的低聚体和丙烯酸酯高聚体的混合物。用这种压敏胶黏剂制成的聚氯乙烯胶黏带具有优良的机械性能、粘合性能、节能环保、耐高温的优点，克服了以往涂布聚氯乙烯胶带需要使用较长的热烘箱设备以挥发掉胶水中的溶剂的缺点，适用于汽车车体中不同部位电缆束的包复和捆扎，能够满足在汽车内部发动机耐高温部位上的使用要求，长期耐温等级达到125℃。

Description

应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂 技术领域
本发明涉及化学化工技术领域，具体而言，涉及一种应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，更具体地涉及一种新型应用于软聚氯乙烯绝缘胶带(包括普通民用电气绝缘胶带及汽车线束用绝缘胶带)的紫外光交联热熔压敏胶黏剂。
背景技术
在普通民用软聚氯乙烯绝缘电气胶带和汽车线束专用软聚氯乙烯胶带领域，现有普遍的生产方式是使用含有机溶剂的天然橡胶型胶黏剂，在生产过程中会造成不同程度的污染，在胶黏剂涂布制成胶粘带的过程中，由于需要高温挥发掉胶黏剂中大量的溶剂，要消耗大量的热源能源，而且会进一步造成有机溶剂向环境中挥发，造成污染；在汽车线束的包覆和捆扎领域，由于环保法规的实施以及民众环保健康意识的提高，已明确汽车线束用产品需满足国家环保法规要求及汽车行业环保要求，欧盟委员会也颁布了《关于在电子电气设备中限制使用某些有害物质指令》(ROHS指令)的要求，对车内空气质量的控制和其他民用领域的环保要求也在不断地提高。
国外生产软聚氯乙烯绝缘胶带的公司已经逐步淘汰溶剂型橡胶型的胶黏剂，越来越多地采用水性橡胶型体系和水性丙烯酸体系的胶黏剂。申请人在中国发明专利CN 101372607B中介绍了一种具有较好的耐增塑剂迁移 性能、适用于制作软聚氯乙烯电气胶粘带的乳液压敏胶黏剂及其制造方法。这种胶黏剂使用纯水作为溶剂，避免了环境污染及产品中有害物质的残留，但利用此种胶黏剂涂布的PVC胶带产品耐温等级不高，温度等级为80℃，只能用于车辆轿厢等非发动机舱部位；在该专利中介绍的胶黏剂具有很好的耐增塑剂由软聚氯乙烯基材向胶黏剂迁移的性能，胶带经长期储存或60-80℃的高温烘烤后，会发生基材的增塑剂向胶层扩散迁移，但不会引起胶粘带的性能产生很大的劣化，胶粘带仍能保持很好的性能，完全满足它的使用要求。水溶性胶黏剂由于不含溶剂，非常环保，但其耐高温性能一般，而且涂布设备占地面积大、能耗大。
最近热熔压敏胶黏剂，特别是紫外光交联热熔压敏胶黏剂由于其耐高温、耐溶剂和环保等特点在汽车线束胶带领域得到了广泛的应用，而且热熔胶涂布设备占地面积小、能耗低。市场上流行的紫外光交联热熔压敏胶黏剂(例如
Figure PCTCN2016081908-appb-000001
RC21171等)是丙烯酸酯类单体和可共聚的光敏引发剂合成的高分子聚合物，但其在软聚氯乙烯薄膜上的附着力、抗增塑剂和柔软度上还有待进一步提高。
发明内容
为了解决现有技术中的上述问题，本发明提供了一种应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，更具体地提供了一种新型应用于软聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其克服了溶剂型胶黏剂涂布带来的能源消耗高的缺点，并在生产节能方面取得了显著的社会效益；解决了CN 101372607B中的胶黏剂不能耐高温的问题，使用本发明提 供的紫外光交联热熔压敏胶黏剂(以下可简称为“本发明的胶黏剂”)制造的汽车线束软聚氯乙烯胶粘带，在耐高温方面具有重大突破，长期耐温等级达到125℃，最高短时耐受温度可高达150℃，可应用在汽车发动机舱内的高温部位。
根据本发明提供的一种应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其主要组份包括含烯类单体、官能性单体、软单体、光引发剂的聚合物，聚合引发剂和抗氧剂。
进一步地，本发明提供的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，还含有一种或多种可聚合光敏引发剂与丙烯酸酯单体的共聚物,或者含有一种或多种可聚合光敏引发剂的低聚体和丙烯酸酯高聚体的混合物。
可选地，所述烯类单体选自由丙烯酸正丁酯、丙烯酸2-乙基己酯、丙烯酸正辛酯、丙烯酸异冰片酯、丙烯酸正十二烷基酯、甲基丙烯酸正丁酯、甲基丙烯酸2-乙基己酯和甲基丙烯酸正辛酯中的一种或多种组成的组中，所述烯类单体的用量为总量的40-65％。
优选地，所述官能性单体为含氮的官能性单体，优选为N-乙烯基吡咯酮，其用量为总量的2-10％。
可选地，所述软单体为C17丙烯酸酯或甲基丙烯酸酯，其用量为总量的5-15％。
可选地，所述光引发剂为含甲基丙烯酰氧基或丙烯酰氧基的苯乙酮或二苯甲酮衍生物(例如，2-羟基-4-(甲基丙烯酰氧基)二苯甲酮等)，其用量为总量的2-10％。
进一步地，本发明提供的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，还含有增粘树脂，所述增粘树脂包括松香树脂、萜烯树脂、石油树脂以及相应的氢化、酯化的改性树脂中的一种或多种，所述增粘树脂的用量为总量的2-20％。
可选地，所述聚合引发剂包括偶氮化合物、酰基过氧化物以及烷基过氧化物，所述偶氮化合物为2,2-偶氮二异丁腈，所述酰基过氧化物以及烷基过氧化物为过氧化苯甲酰、过氧化二癸酰或过氧化异壬酰；苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐，所述聚合引发剂的用量为总量的1-10％。
进一步地，所述抗氧剂为芳香类抗氧剂、受阻酚类抗氧剂或辅助抗氧剂，其用量为总量的0.5-1.5％。
可选地，所述抗氧剂为二苯胺、对二苯胺，抗氧剂1010、抗氧剂1076。
通过在本发明的胶黏剂中添加含氮的官能性单体，增加了本发明的胶黏剂对聚氯乙烯基材的附合力，克服了聚氯乙烯胶粘带在高温后容易脱胶的难题；通过在发明的本胶黏剂中加入多碳的特殊软单体，改善了胶黏剂的柔软性。
在本发明所提供的紫外光交联热熔压敏胶黏剂的组成中，除上述各种成分外，还含有一种或多种可聚合光敏引发剂与丙烯酸酯单体的共聚物，或者还含有一种或多种可聚合光敏引发剂的低聚体和丙烯酸酯高聚体的混合物。含有可聚合光敏引发剂的低聚体能够降低热熔压敏胶黏剂的粘度，从而降低涂布温度，更好地保护容易高温变形的聚氯乙烯基材。在丙烯酸酯类单体中，除了采用常用的丙烯酸正丁酯、丙烯酸异辛酯、丙烯酸、甲 基丙烯酸、丙烯酸羟乙酯、丙烯酸羟丙酯外，还采用了特殊单体N-乙烯基吡咯酮(NVP)，以增加对聚氯乙烯基材的粘着力和抗增塑剂性能。为了增加胶黏剂的柔软性，在本发明的胶黏剂中加入了C17丙烯酸酯或甲基丙烯酸酯(来自BASF)。
本发明提供的紫外光交联热熔压敏胶黏剂还必须包含一种或多种光敏引发剂，最常用的光敏引发剂是苯乙酮和二苯甲酮的衍生物。光敏引发剂在紫外光的照射下，更具体说是在UVC的辐射下，产生了自由基团，从而使本发明的胶黏剂中的丙烯酸酯类单体进一步聚合并使丙烯酸酯聚合物产生交联而固化。可聚合光敏引发剂是含甲基丙烯酰氧基或丙烯酰氧基的苯乙酮或二苯甲酮衍生物，例如，2-羟基-4-(甲基丙烯酰氧基)二苯甲酮。在紫外光交联热熔压敏胶黏剂的组成中采用高分子量光敏引发剂，可以进一步降低胶层的挥发性，使本发明的胶黏剂更好地满足环保的要求。
为了增加粘合力，本发明的胶黏剂含有的增粘树脂包括松香树脂、萜烯树脂、石油树脂以及其相应的氢化、酯化改性树脂等。为了防止粘合剂的老化，通常还加入适量的防老化剂。本发明的胶黏剂含有的抗氧剂为芳香类抗氧剂、受阻酚类抗氧剂及辅助抗氧剂，例如，二苯胺、对二苯胺抗氧剂1010、抗氧剂1076。本发明的胶黏剂含有的聚合引发剂包括偶氮化合物、酮过氧化物以及烷基过氧化物；本发明的胶黏剂所使用的溶剂为醋酸乙酯、酮类(如丙酮、甲乙酮)、醇类(如甲醇、乙醇、丙醇、丁醇、异丁醇)、甲苯、二甲苯等或上述溶剂的混合物。
根据本发明提供的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，能够带来至少以下有益效果之一：1、对环境友好，耐温性能优；2、 适用于汽车车体中不同部位电缆束的包复和捆扎，尤其是能够满足在汽车内部发动机耐高温部位的使用要求，长期耐温等级达到125℃。
具体实施方式
下面详细介绍本发明的示例性实施例，并通过下面的实施例和比较例以及表1中的性能数据来说明本发明提供的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂的效果。提供这些示例性实施例的目的是为了使得本领域普通技术人员能够清楚地理解本发明，并且根据这里的描述能够实现本发明。具体实施例不旨在对本发明进行限定，本发明的范围由所附的权利要求限定。
实施例1
在反应釜中加入醋酸乙酯30％(wt)，加热至沸腾并保持30分钟，将丙烯酸正丁酯(BA)53.9％(wt)、丙烯酸(AA)3.5％(wt)、丙烯酰氧基苯乙酮3.5％(wt)、N-乙烯基吡咯酮(NVP)1.4％(wt)、C17丙烯酸酯(来自BASF)3.5％(wt)和作为引发剂的苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐(BOP)3.5％(wt)混合后滴加到反应釜中，充氮气保护，在1小时以内滴加完毕，完成滴定后，继续加热4小时；4小时到达时，加入0.7％(wt)的抗氧剂Irganox 1010，继续保持加热状态，对反应釜进行抽真空，至溶剂(即，醋酸乙酯)完全分离，去除该溶剂得到不含溶剂的热熔压敏胶黏剂。
耐高温聚氯乙烯胶带制备：在热熔涂布机上采用夹缝式挤压、滚棒式或淋膜式涂布工艺来完成制备，将耐高温聚氯乙烯膜基材安装到放卷轴上， 并引出至收卷轴。设定熔胶箱温度为130-140℃，涂布头温度为135℃，根据上胶的重量调整胶泵的转速和主机速度的比值。设定收卷张力和放卷张力，并打开冷却装置。调整主机速度，将涂布头慢慢靠至聚氯乙烯膜面，打开胶泵开关进行涂布，调整涂布头和基材之间的间隙距离，调整涂布机速度进行涂布，上述热熔压敏胶黏剂的涂布量是18克/平方米，胶层经一组紫外灯的紫外光辐照进行交联固化。所用的紫外灯是高压汞灯、中低压汞灯或者LED灯，其紫外光的最小辐照能量需达到10mJ/cm2。交联固化后的胶带再经收卷分切后即制得所述的耐高温聚氯乙烯胶粘带制品。
实施例2
高聚体(A)制备：在反应釜中加入醋酸乙酯30％(wt)，加热至沸腾并保持30分钟，将丙烯酸正丁酯(BA)63％(wt)、丙烯酸(AA)3.5％(wt)、苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐(BOP)3.5％(wt)混合后滴加到反应釜中，充氮气保护，在1小时以内滴加完毕，完成滴定后，继续加热4小时；4小时到达时，继续保持加热状态，对反应釜进行抽真空，将高聚体(A)放出待用；
低聚体(B)制备：在反应釜中加入甲苯50％(wt)，加热至沸腾并保持30分钟，将丙烯酸正丁酯(BA)33％(wt)、丙烯酸(AA)1.5％(wt)、作为光引发剂的丙烯酰氧基苯乙酮5％(wt)、苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐(BOP)2.5％(wt)、C17丙烯酸酯(来自BASF)5％(wt)、N-乙烯基吡咯酮(NVP)2％(wt)混合后滴加到反应釜，在2小时以内滴加完毕，完成滴加后，加入1％(wt)的抗氧剂1010，继续保持加热状态，对反应釜进行抽真空，将低聚物(B)放出待用；高聚体A和低 聚体B混合(A和B各占50％)，加热至130℃并充分搅拌混合均匀后，冷却待用；按实施例1相同方法制得耐高温聚氯乙烯胶粘带。
实施例3：95％(wt)的实施例1和5％(wt)的氢化石油树脂
Figure PCTCN2016081908-appb-000002
1090(美国伊斯曼)加热至130℃，充分搅拌混合而制成；按实施例1相同方法制得耐高温聚氯乙烯胶粘带。
比较例1
丙烯酸酯共聚物乳液的合成：
(1)将总单体配方[丙烯酸异辛酯(2-EHA)20g、丙烯酸丁酯(BA)50g、顺丁烯二酸二丁酯(DBM)60g、甲基丙烯酸甲酯(MMA)50g、丙烯酸羟乙酯(HEA)7.5g、丙烯酸(AA)4.5g、N-羟甲基丙烯酰胺(N-MAM)8.0g]分成A、B两组分分别进行混合并制成预乳化液，其中，组分A的成分为：BA50g、MMA50g、HEA4.5g、AA 2.8g、N-MAM 8.0g；组分B的成分为：2-HEA 20g、DBM 60g、HEA 3.0g、AA 1.7g；
(2)在1000ml的三口圆底烧瓶中加入去离子水160g，缓冲剂碳酸氢钠2.6g，乳化剂Co-436(一种Rhodia Inc.的产品)0.78g，搅拌均匀后加热升温，待温度升至78℃后加入引发剂过硫酸铵0.40g的水溶液，然后维持温度在82-84℃匀速加入组分A单体的预乳化液进行第一阶段的乳液共聚合，1.5个小时加完，加完后继续维持在该温度范围内匀速加入组分B单体的预乳化液，进行第二阶段的乳液共聚合，2.5个小时加完；
(3)维持在83-85℃继续搅拌反应1个小时冷却后过滤出料，即得到可用于进一步配置乳液压敏胶的丙烯酸酯共聚物乳液；
(4)乳液压敏胶的配制：将市售的聚醋酸乙烯乳液45g加入到300g上述合成的丙烯酸酯共聚物乳液中与之混合均匀，再用氨水调节PH值呈7-8，即可得所需的乳液压敏胶，其固体含量为53％；
(5)性能测试将所得的乳液压敏胶涂布在0.15mm厚的软聚氯乙烯(SPVC)薄膜基材上制得干胶层厚度为20μm的电气压敏胶粘带小卷，在70℃环境中熟化8小时后测试胶粘带的各种性能，按中国国家标准GB/T2792-1998测试胶带的180°剥离强度。
比较例2
在反应釜中加入醋酸乙酯30％(wt)，加热至沸腾并保持30分钟，将丙烯酸正丁酯(BA)58.9％(wt)、丙烯酸(AA)3.5％(wt)、丙烯酰氧基苯乙酮3.5％(wt)、作为引发剂的苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐(BOP)3.5％(wt)混合后滴加至反应釜中，充氮气保护，在1小时以内滴加完毕，完成滴定后，继续加热4个小时；4个小时到达时，加入0.7％(wt)的抗氧剂Irganox 1010，继续保持加热状态，对反应釜进行抽真空，至溶剂完全分离。
表1中的压敏胶粘带的初粘、180°剥离强度和低速解卷强度分别按中国国家标准GB/T4852-1984、GB/T8451-1998、GB/T2792-1998和GB/T4850-1984的方法测定；温度稳定性的测试方法如下：以压敏胶粘带缠绕线束后，在150℃下老化24小时，观测老化后线束是否边缘胶带翘起、胶带松脱、是否有胶液溢出，以胶带未翘起、未松脱、不溢胶为合格；柔软性测试方法：将缠绕在纸芯(外径为36mm、纸芯壁厚为3-4mm)的胶粘带(宽度为19-25mm)，长度至少为10米，经20±1℃，相对湿度50±5％ RH处理24小时后，以15-20cm/秒的速度对胶粘带解卷，胶带均匀打开，无响声、无粘-滑跳动现象，判定为柔软性好；如果解卷跳动、有响声，判定为柔软性差。
表1软聚氯乙烯胶粘带性能测试结果
Figure PCTCN2016081908-appb-000003
Figure PCTCN2016081908-appb-000004
对比实施例1-3和比较例1、2可知：应用于软聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂制作的软聚氯乙烯胶带的耐温性明显高于用乳液型压敏胶制作的胶粘带。官能性单体的使用，增加了胶黏剂对聚氯乙烯基材的附着力和抗增塑剂性能，特殊软单体的添加使用，改善了聚氯乙烯胶粘带的柔软性。

Claims (10)

  1. 一种应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其主要组份包括含烯类单体、官能性单体、软单体、光引发剂的聚合物，聚合引发剂和抗氧剂。
  2. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，还含有一种或多种可聚合光敏引发剂与丙烯酸酯单体的共聚物,或者含有一种或多种可聚合光敏引发剂的低聚体和丙烯酸酯高聚体的混合物。
  3. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述烯类单体选自由丙烯酸正丁酯、丙烯酸2-乙基己酯、丙烯酸正辛酯、丙烯酸异冰片酯、丙烯酸正十二烷基酯、甲基丙烯酸正丁酯、甲基丙烯酸2-乙基己酯和甲基丙烯酸正辛酯中的一种或多种组成的组中，所述烯类单体的用量为总量的40-65％。
  4. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述官能性单体为含氮的官能性单体，优选为N-乙烯基吡咯酮，其用量为总量的2-10％。
  5. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述软单体为C17丙烯酸酯或甲基丙烯酸酯，其用量为总量的5-15％。
  6. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述光引发剂为含甲基丙烯酰氧基或丙烯酰氧基的苯乙酮或二苯甲酮衍生物，其用量为总量的2-10％。
  7. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，还含有增粘树脂，所述增粘树脂包括松香树脂、萜烯树脂、石油树脂以及相应的氢化、酯化的改性树脂中的一种或多种，所述增粘树脂的用量为总量的2-20％。
  8. 根据权利要求2所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述聚合引发剂包括偶氮化合物、酰基过氧化物以及烷基过氧化物，所述偶氮化合物为2,2-偶氮二异丁腈，所述酰基过氧化物为过氧化苯甲酰、过氧化二癸酰或过氧化异壬酰；或所述聚合引发剂为苯并三氮唑-1-基氧基三(二甲基氨基)磷鎓六氟磷酸盐，所述聚合引发剂的用量为总量的1-10％。
  9. 根据权利要求1所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述抗氧剂为芳香类抗氧剂、受阻酚类抗氧剂或辅助抗氧剂，其用量为总量的0.5-1.5％。
  10. 根据权利要求9所述的应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂，其中，所述抗氧剂为二苯胺、对二苯胺，抗氧剂1010、抗氧剂1076。
PCT/CN2016/081908 2016-02-03 2016-05-12 应用于聚氯乙烯绝缘胶带的紫外光交联热熔压敏胶黏剂 WO2017133121A1 (zh)

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