WO2013083062A1 - 一种环氧基改质聚苯醚树脂、树脂组合物及其应用 - Google Patents

一种环氧基改质聚苯醚树脂、树脂组合物及其应用 Download PDF

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WO2013083062A1
WO2013083062A1 PCT/CN2012/086089 CN2012086089W WO2013083062A1 WO 2013083062 A1 WO2013083062 A1 WO 2013083062A1 CN 2012086089 W CN2012086089 W CN 2012086089W WO 2013083062 A1 WO2013083062 A1 WO 2013083062A1
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Prior art keywords
resin
epoxy
epoxy resin
polyphenylene ether
modified polyphenylene
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PCT/CN2012/086089
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English (en)
French (fr)
Inventor
李长元
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中山台光电子材料有限公司
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Publication of WO2013083062A1 publication Critical patent/WO2013083062A1/zh

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/08Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08L71/10Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08L71/12Polyphenylene oxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/48Polymers modified by chemical after-treatment
    • C08G65/485Polyphenylene oxides
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0313Organic insulating material
    • H05K1/032Organic insulating material consisting of one material
    • H05K1/0326Organic insulating material consisting of one material containing O
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/05Polymer mixtures characterised by other features containing polymer components which can react with one another
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0313Organic insulating material
    • H05K1/0353Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
    • H05K1/0366Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/02Fillers; Particles; Fibers; Reinforcement materials
    • H05K2201/0275Fibers and reinforcement materials
    • H05K2201/029Woven fibrous reinforcement or textile

Definitions

  • the present invention relates to an electronic material, and more particularly to an epoxy-modified polyphenylene ether resin, a resin composition containing the epoxy-modified polyphenylene ether resin, and their use in the preparation of a printed circuit board.
  • Copper foil laminates are an important manufacturing ingredient for printed circuit boards.
  • a copper foil laminate is produced by impregnating a resin composition suitable for a printed circuit board with a glass fiber cloth, and then forming a semi-cured film formed by baking, and then applying the semi-cured film to the upper and lower portions. After the two layers are laminated with the copper foil, the copper foil laminate is pressed by vacuum, heat and pressure, etc., wherein the semi-cured film is cured to form an insulating layer of the copper foil laminate.
  • a polymer material having good dielectric properties is generally added to the resin composition.
  • Dk Dielectric constant
  • Df Dissipation factor
  • ⁇ or yttrium resin polyphenylene ether resin
  • it is widely used in the industry.
  • some of the enamel and its resin composition are coated on the surface of the glass fiber cloth to prepare the semi-cured film required for the production of the copper foil laminate, but due to the enamel and the glass fiber cloth. Poor impregnation results in a film on the surface of the fiberglass cloth that affects the appearance and dielectric properties of the semi-cured film.
  • a polyphenylene ether resin having an epoxy group at the end is disclosed, which is a polyphenylene ether resin with epiphenylene oxide, epichlorohydrin or 2,3. -Epoxypropyl-p-Phenylbenzenesulfonate and other monofunctional epoxy groups are produced by a substitution reaction. It is clear from the preparation method that the environmentally harmful halide such as bromide and chloride (i.e., the leaving group is a halide) is generated in the process of the polyphenylene ether resin, thereby increasing the polyphenylene ether. Resin process environmental protection investment, and May cause damage to the corresponding operator.
  • the environmentally harmful halide such as bromide and chloride
  • the technical problem to be solved by the present invention is to provide an epoxy-modified polyphenylene ether resin which can be used in the preparation process of a printed circuit board to improve the dielectric properties of the copper foil laminate insulation layer.
  • the resin composition containing the epoxy-modified polyphenylene ether resin has excellent impregnation properties of the glass fiber cloth, and it is difficult to produce a film on the glass fiber cloth to lower the impregnation property.
  • the present invention provides an epoxy-modified polyphenylene ether resin having a structural unit represented by the formula (I):
  • R is an alkylene group having 1 to 5 carbon atoms or -S0 2 ;
  • ⁇ , ⁇ 2 , ⁇ 3 , ⁇ 4 are the same or different and each is represented by 11, a halogen atom or an alkyl group; ⁇ is a functional group of a functionalized epoxy resin, and m and n are positive integers greater than 1.
  • m and n represent the degree of polymerization of a polymer compound, and in each of the above formulas and each of the following formulas, m and n each have the same or different values.
  • X is preferably:
  • the functionalized epoxy resin is bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin, phenol novolac epoxy resin, bisphenol A phenolic epoxy resin, o-nonphenol phenolic aldehyde Epoxy resin, trifunctional epoxy resin, tetrafunctional epoxy resin, polyfunctional epoxy resin, dicyclopentadiene epoxy resin, epoxy resin, nitrogen-containing epoxy resin, bromine-containing epoxy
  • a resin, a p-benzoquinone epoxy resin, a naphthalene type epoxy resin, a benzofluorenyl epoxy resin, a biphenol novolac epoxy resin, or a phenolic phenylalkylphenol novolac epoxy resin combination is bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin, phenol novolac epoxy resin, bisphenol A phenolic epoxy resin, o-nonphenol phenolic aldehyde Epoxy resin, trifunctional epoxy resin, tetrafunctional epoxy resin, polyfunctional epoxy resin, dicyclopentadiene epoxy
  • Y in formula (I) is:
  • the epoxy-modified polyphenylene ether resin is obtained by reacting a solid polyphenylene ether resin with an epoxy resin according to the following method: 100 parts of a solid polyphenylene ether resin is added to a polymerization solvent, and then dissolved. The liquid polyphenylene ether resin solution is further added with 5 to 60 parts of an epoxy resin and 0.001 to 5 parts of a catalyst, and the mixture is stirred and mixed at 80 to 140 ° C for 1 to 3 hours to obtain a prepolymerized solution.
  • the preferred raw material ratio and preparation method are as follows: 100 parts of the solid polyphenylene ether resin is added to the polymerization solvent, and then dissolved into a liquid polyphenylene ether resin solution, and then 24 to 35 parts of epoxy resin and 0.005-1 part of catalyst are added to the solution, and stirred and mixed at 100 to 120 ° C for 1 to 3 hours to obtain a prepolymerized solution.
  • polyphenylene ether resin has a molecular structure as shown in formula (II):
  • R is an alkylene group having 1 to 5 carbon atoms or -S0 2 ;
  • ⁇ , ⁇ 2 , ⁇ 3 , ⁇ 4 are the same or different, and each is represented by ⁇ , a halogen atom or an alkyl group, and ⁇ is a positive integer greater than 1.
  • R is preferably:
  • polyphenylene ether resin is preferably a polymer compound having a molecular structure such as the formula (III) and/or the formula (IV):
  • n is a positive integer greater than one.
  • the epoxy resin is preferably bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin, phenol novolac epoxy resin, bisphenol A phenolic epoxy resin, o-nonphenol phenolic epoxy resin, Trifunctional epoxy resin, tetrafunctional epoxy resin, polyfunctional epoxy resin, dicyclopentadiene epoxy resin, epoxy resin, nitrogen-containing epoxy resin, bromine-containing epoxy resin, two One or a combination of two or more of a benzene benzene epoxy resin, a naphthalene type epoxy resin, a benzofluorenyl epoxy resin, a biphenol aldehyde epoxy resin, and a phenol phenyl phenol phenol aldehyde epoxy resin. Further preferably, one or a combination of two or more of bisphenol A epoxy resin, bisphenol F epoxy resin, phenol novolac epoxy resin, dicyclopentadiene epoxy resin and diphenol aldehyde epoxy resin is used.
  • the polymerization solvent is N, N-dimercaptoamide, N, N-diethyl amide, One or a combination of two or more of acetone, methyl ethyl ketone, cyclohexanone, ethylene glycol oxime ether, and propylene glycol oxime ether.
  • the catalyst is an imidazole compound: 2-mercaptoimidazole, 1-mercaptoimidazole, 2-ethyl-4-mercaptoimidazole, 2-phenylimidazole, 2-undecylimidazole, 2- One or a combination of two or more of phenyl-mercaptoimidazole.
  • the epoxy-modified polyphenylene ether resin disclosed in the above scheme has an important influence on the quality of the product and the preparation efficiency in the preparation ratio of the raw materials used in the preparation process and the amount of the catalyst.
  • the polyphenylene ether terminal functional group cannot be sufficiently epoxy bonded to 100 parts by weight of the polyphenylene ether resin if the epoxy resin is less than 5 parts by weight.
  • the functional group thereby affecting the epoxy group to improve the efficiency of the epoxy resin; if the epoxy resin exceeds 60 parts, the residual resin and the physical properties (such as dielectric properties) of the synthetic resin due to residual excess unreacted epoxy resin Not good.
  • the catalyst is less than 0.001 parts, the reaction rate is slow, and no significant catalytic effect is obtained; if the catalyst exceeds 5 parts, the reaction rate is too fast, which affects the preparation process of the product and the quality of the product.
  • the epoxy-modified polyphenylene ether resin disclosed in the present invention has a reaction mechanism and a bonding structure as shown in Chemical Formula 1 and Chemical Formula 2:
  • the epoxy-modified polyphenylene ether resin disclosed in the invention does not undergo prepolymerization. Producing an environmentally harmful surface compound such as a bromide or a chloride, which produces an environmentally harmful halide during the manufacturing process as compared with the polyphenylene ether resin having an epoxy group at the trailing end disclosed in the prior art,
  • the epoxy-modified polyphenylene ether resin is environmentally friendly, reduces environmental protection investment in the resin preparation process, and effectively avoids possible damage to the corresponding operator.
  • the technical problem to be solved by the present invention is to provide a resin composition comprising the epoxy-modified polyphenylene ether resin disclosed in the above scheme in the resin composition.
  • the composition further comprises a crosslinking agent and a hardening accelerator;
  • the parts by weight of each component in the composition are: 100 parts of epoxy-modified polyphenylene ether, 1 to 500 parts of a crosslinking agent, and 0.001 to 5 parts of a hardening accelerator.
  • the amount of the raw material used in the preparation of the resin composition of the present invention has an important influence on the quality of the product and the production efficiency. Specifically, the epoxy functional group at the terminal of the epoxy-modified polyphenylene ether resin is not sufficiently reacted and cured relative to 100 parts of the epoxy-modified polyphenylene ether resin, if the crosslinking agent is less than 1 part, so that the composition Tg glass transition temperature:) is too low; if the cross-linking agent exceeds 500 parts, excess unreacted cross-linking agent remains, so that the heat resistance and Tg of the composition are not good; if the hardening accelerator is less than 0.001 part The rate should be slower and there is no obvious catalytic effect; if the hardening accelerator exceeds 5 parts, the reaction rate is too fast, which affects the preparation process of the product and the quality of the product.
  • the resin composition further comprises 10 to 1000 parts by weight of an unprepolymerized epoxy resin, the epoxy resin being bisphenol A epoxy resin, bisphenol F epoxy resin, double Phenol S (bisphenol S) epoxy resin, phenol novolac epoxy resin, bisphenol A novolac epoxy resin, o-cresol novolac epoxy resin, trifunctional ( Trifunctional) epoxy resin, tetrafunctional epoxy resin, multifunctional epoxy resin, dicyclopentadiene (DCPD) epoxy resin, phosphorus-containing epoxy resin, Nitrogen epoxy resin, bromine-containing epoxy resin, p-xylene epoxy resin (p-xylene) epoxy resin), naphthalene (naphthalene) Epoxy four pairs months purpose, benzo South p-type (benzopyran) four pairs months purpose epoxy, phenol biphenyl (biphenyl novolac) an epoxy resin, a phenol novolac alkyl benzene (Phenol Aralkyl novolac) One or a combination of two or more of epoxy resin, the
  • the crosslinking agent is selected from the group consisting of a phenol resin, an amine resin, a phenol resin, an acid anhydride resin, a styrene resin, a butadiene resin, a polyamide resin, a polyimide resin, a polyester resin, a polyether resin, and a cyanogen.
  • a phenol resin an amine resin, a phenol resin, an acid anhydride resin, a styrene resin, a butadiene resin, a polyamide resin, a polyimide resin, a polyester resin, a polyether resin, and a cyanogen.
  • a cyanogen One or a combination of two or more of an acid ester resin, an isocyanate resin, a maleimide resin, and a benzoxazine resin.
  • said hardening accelerator is selected from imidazole (imidazole), a boron trifluoride amine complex, ethyltriphenylphosphonium chloride, jingle (ethyltriphenyl phosphonium chloride), 2- Yue-yl imidazol ⁇ sat (2-methylimidazole, 2 -MI), 2-phenyl-lH-imidazole (2PZ), 2-ethyl-4-methylimidazole (2E4MZ), triphenylphosphine, a Lewis base of at least one of TPP), 4-dimethylaminopyridine (DMAP), or a metal salt compound selected from the group consisting of manganese, iron, cobalt, nickel, copper, and at least one of Lewis acid, or selected from organic peroxides, such as dicumyl peroxide (DCP, Dicumyl Peroxide).
  • imidazole imidazole
  • jingle ethyltriphenyl phospho
  • the resin composition further comprises at least one of an inorganic filler, a flame retardant, a siloxane, a dispersion agent, an organic stone elastomer, a solvent, and a toughening agent.
  • an inorganic filler e.g., a flame retardant, a siloxane, a dispersion agent, an organic stone elastomer, a solvent, and a toughening agent.
  • the inorganic filler comprises silica (molten or non-molten and porous), alumina, magnesia, magnesium hydroxide, carbonic acid, aluminum nitride, boron nitride, aluminum hydroxide, carbonization
  • the inorganic filler is a particle powder having a particle diameter of 100 ⁇ m or less, preferably a particle powder having a particle diameter of 1 to 20 ⁇ m, preferably having a particle diameter of 1 ⁇ m or less to a nanometer size.
  • the needle-like inorganic filler is a powder having a diameter of 50 ⁇ m or less and a length of 1-200 ⁇ m.
  • the flame retardant is selected from the group consisting of a flame retardant containing a trace, a nitrogen-containing flame retardant, a bromine-containing flame retardant, or a combination of two or more thereof.
  • common flame retardants such as OP-935, SPB-100, PX-200
  • nitrogen-containing flame retardants such as Melamine Cyanurate, bromine-containing flame retardants such as TBBPA, Tetra-Bromo-bisphenol A
  • TBBPA Tetra-Bromo-bisphenol A
  • the surfactant (or siloxane coupling agent, siloxane) can be used, and is not particularly limited.
  • vinyltriethoxysilane or vinyltrimethoxysilane is preferably used.
  • the commonly used dispersing agents are BYK-103, BYK-901, BYK-161, BYK-164, etc., but not limited to this.
  • the hybrid type silicone powder is a rubber and resin type composite powder, preferably a spherical powder.
  • the addition of the silicone elastomer increases the heat resistance and impact absorption of the resin composition.
  • commercially available silicone elastomers such as X-52-7030, KMP-605, KMP-602, KMP-601, KMP-600, KMP-590, KMP-594 produced by Shin-Etsu are not limited to this. .
  • the technical problem to be solved by the present invention is to provide a semi-cured film comprising a reinforcing material and a substrate impregnated on the reinforcing material, wherein the substrate is an epoxy-modified polyphenylene disclosed in the above scheme.
  • An ether resin composition which is heated to a semi-cured state and coated on the reinforcing material.
  • the reinforcing material is made of natural fibers, organic synthetic fibers, organic fabrics or inorganic fibers.
  • the technical problem to be solved by the present invention is to provide a laminate produced by using the above epoxy-modified polyphenylene ether resin composition, the laminate comprising at least one metal foil and at least one insulating layer, the insulation
  • the layer is formed by curing the semi-cured film disclosed in the above scheme.
  • the laminate comprises a plurality of phase-bonded semi-cured films, the semi-cured film being made of the epoxy-modified polyphenylene ether resin composition
  • the laminate disclosed in the above scheme can exhibit good heat resistance and dielectric properties, and is advantageous for signal transmission of a high frequency circuit board.
  • the epoxy-modified polyphenylene ether resin disclosed in the invention is used in the preparation process of the printed circuit board, can improve the dielectric properties of the copper foil laminate insulation layer, and can modify the epoxy group containing the epoxy group
  • the resin composition of the phenyl ether resin has an excellent impregnation property of the glass fiber cloth, and it is difficult to produce a film on the glass fiber cloth.
  • the laminate and the copper-clad laminate produced by using the resin composition of the epoxy-modified polyphenylene ether resin of the present invention have good heat resistance and dielectric properties, and are advantageous for signal transmission of a high-frequency wiring board.
  • the epoxy-modified polyphenylene ether resin of the present invention is obtained by previously reacting a polyphenylene ether resin with a difunctional, trifunctional or polyfunctional epoxy resin to form a prepolymer.
  • the epoxy-modified polyphenylene ether resin of the present invention does not generate bromide during the prepolymerization reaction.
  • Environmentally harmful halides such as chlorides reduce environmental protection during resin preparation and effectively avoid possible damage to the corresponding operators. Therefore, not only the preparation process is simple, efficient, environmentally friendly, but also the purity controllability of the product. high.
  • epoxy-modified polyphenylene ether resin prepolymer 100 parts by weight of bisphenol A phenolic epoxy resin, 30 parts by weight of phenol novolac resin, 0.1 part by weight of 2-MI, 100 parts by weight of molten silica f sed silica, 20 parts by weight of a flame retardant (PX-200, Japan Da Ba Chemical) and 30 parts by weight of a propylene glycol oxime ether solvent were mixed and uniformly dispersed.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth, and baked at 170 ° C for 3 minutes to prepare a prepreg; and then two copper foils are laminated on the prepared four prepregs.
  • a vacuum hot press at a temperature of 190 ° C, a pressure of 35 Kg / cm 2 , a pressing time of 65 min, a press-forming type, to obtain a copper foil laminate, wherein the semi-cured film is cured to form two copper Insulation between foils.
  • epoxy-modified polyphenylene ether resin prepolymer 100 parts by weight of bisphenol A phenolic epoxy resin, 30 parts by weight of phenol novolac resin, 0.1 part by weight of 2-MI, 100 parts by weight of molten silica fused silica, 20 parts by weight of a flame retardant (PX-200, Japan Da Ba Chemical) and 30 parts by weight of a propylene glycol oxime ether solvent were mixed and uniformly dispersed.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth, and baked at 170 ° C for 3 minutes to prepare a prepreg; and then two copper foils are laminated on the prepared four prepregs.
  • a vacuum hot press at a temperature of 190 ° C, a pressure of 35 Kg / cm 2 , a pressing time of 65 min, a press-forming type, to obtain a copper foil laminate, wherein the semi-cured film is cured to form two copper Insulation between foils.
  • epoxy-modified polyphenylene ether resin prepolymer 100 parts by weight of bisphenol A phenolic epoxy resin, 30 parts by weight of phenol novolac resin, 0.1 part by weight of 2-MI, 100 parts by weight of molten silica fused silica, 20 parts by weight of a flame retardant (PX-200, Japan Da Ba Chemical) and 30 parts by weight of a propylene glycol oxime ether solvent were mixed and uniformly dispersed.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth and baked at 170 ° C.
  • the prepreg was prepared in 3 minutes; two pieces of copper foil were laminated on both sides of the prepared prepreg, and the vacuum hot press was used at a temperature of 190 ° C, a pressure of 35 kg/cm 2 , and a pressing time of 65 min. Press-formed to obtain a copper foil laminate in which the semi-cured film is cured to form an insulating layer between the two copper foils.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth, and baked at 170 ° C for 3 minutes to prepare a prepreg; and then two copper foils are laminated on the prepared four prepregs.
  • a vacuum hot press at a temperature of 190 ° C, a pressure of 35 Kg / cm 2 , a pressing time of 65 min, a press-forming type, to obtain a copper foil laminate, wherein the semi-cured film is cured to form two copper Insulation between foils.
  • 35 parts by weight of a dicyclopentadiene type epoxy resin 100 parts by weight of a PPO solid polyphenylene ether resin (MX-90 SABIC Innovative Plastic), 100 parts by weight of a bisphenol A novolac epoxy resin, 30 Parts by weight of phenol phenolic acid resin, 0.1 parts by weight of 2-MI, 100 parts by weight of molten silica f sed silica, 20 parts by weight of a flame retardant (PX-200, Japan Da Ba Chemical and 30 parts by weight
  • the propylene glycol oxime ether solvent is mixed and dispersed uniformly.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth and baked at 170 ° C.
  • the prepreg was prepared in 3 minutes; two pieces of copper foil were laminated on both sides of the prepared prepreg, and the vacuum hot press was used at a temperature of 190 ° C, a pressure of 35 kg/cm 2 , and a pressing time of 65 min. Press-formed to obtain a copper foil laminate in which the semi-cured film is cured to form an insulating layer between the two copper foils.
  • a biphenyl epoxy resin 100 parts by weight of a polyphenylene ether resin, 100 parts by weight of a bisphenol A phenolic epoxy resin, 30 parts by weight of a phenol novolac resin, 0.1 part by weight of 2-MI, 100 parts by weight A portion of the molten silica fused silica, 20 parts by weight of a flame retardant containing a trace (PX-200, Japan Da Ba Chemical and 30 parts by weight of a propylene glycol oxime ether solvent are mixed and uniformly dispersed.
  • the above epoxy-modified polyphenylene ether resin composition is impregnated with a glass fiber cloth, and baked at 170 ° C for 3 minutes to prepare a prepreg; and then two copper foils are laminated on the prepared four prepregs.
  • a vacuum hot press at a temperature of 190 ° C, a pressure of 35 Kg / cm 2 , a pressing time of 65 min, a press-forming type, to obtain a copper foil laminate, wherein the semi-cured film is cured to form two copper Insulation between foils.

Abstract

一种环氧基改质聚苯醚树脂,该环氧基改质聚苯醚树脂具有如式(I)表示的结构单元,并按照如下方法反应而制得:将固态的聚苯醚树脂100份,添加聚合反应溶剂后溶成液态聚苯醚树脂溶液,再将环氧树脂5〜60份及催化剂0.001〜5份,加入溶液中,于80〜140°C下搅拌混合1〜3小时而得预聚合溶液。本发明还公开了含有该环氧基改质聚苯醚树脂的树脂组合物及它们在制备印刷电路板中的应用。本发明的环氧基改质聚苯醚树脂组合物,具有优良的玻璃纤维布含浸性,不仅制备流程简单、高效、环保,且产品纯度可控性高;将其用于制作的层压材料及覆铜层压板,具有良好的耐热性和介电性能,有利于高频线路板的信号传输。

Description

说 明 书
一种环氧基改质聚苯醚树脂、 树脂组合物及其应用
技术领域
本发明涉及一种电子材料, 尤其涉及一种环氧基改质聚苯醚树脂、 含有该 环氧基改质聚苯醚树脂的树脂组合物及它们在制备印刷电路板中的应用。
背景技术
铜箔层压板为印刷电路板的一种重要制造原料。 现有技术中, 铜箔层压板 的制造方法为将适用于印刷电路板的树脂组合物含浸于玻璃纤维布上, 而后经 由烘烤后形成的半固化胶片, 再将半固化胶片的上、 下两层迭合铜箔后, 再经 由真空、 加热加压等方式压合成铜箔层压板, 其中半固化胶片固化形成铜箔层 合板之绝缘层。
为了改善铜箔层合板绝缘层之介电特性,如介电常数 (Dielectric constant, Dk) 及耗散因子( Dissipation factor, Df) , 一般会在树脂组合物内添加介电特性良好的 高分子材料, 基于聚苯醚树脂 (ΡΡΟ或称 ΡΡΕ树脂)在这方面表现出的优良特性, 因而被业界广泛釆用。 然而, 现有技术公开的方案中, 有的是釆用 ΡΡΟ或其树 脂组合物涂覆于玻璃纤维布表面而制得铜箔层合板生产过程中所需要的半固化 胶片, 但由于 ΡΡΟ与玻璃纤维布的含浸性不佳, 会在玻璃纤维布表面形成一薄 膜, 影响半固化胶片之外观和介电特性。
在公开号为 CN 1385454A的专利文献中, 揭露一种尾端为环氧基的聚苯醚 树脂, 该聚苯醚树脂将聚苯醚树脂与环氧溴丙烷、 环氧氯丙烷或 2,3-环氧丙基- 对曱苯磺酸酯等单官能环氧基利用取代反应制作而成。 参照其制备方法可以清 楚的知道, 在该聚苯醚树脂的制程中会产生溴化物及氯化物等对环境有害的卤 化物 (即其离去基为卤化物), 因而增加了该聚苯醚树脂的制程的环保投入, 并有 可能对相应的操作人员造成损害。
因而, 开发出一种新型的环氧基改质聚苯醚树脂, 并通过高效、 环保的方 法制备出适和用于印刷电路板且具有良好的介电特性树脂组合物, 克服上述现 有技术中存在的问题, 是本领域技术人员亟待解决的问题。
发明内容
有鉴于此, 本发明所解决的技术问题在于提供一种环氧基改质聚苯醚树脂, 将其用于印刷电路板的制备工艺中 , 能够改善铜箔层合板绝缘层之介电特性, 并使含有该环氧基改质聚苯醚树脂的树脂组合物具有优良的玻璃纤维布含浸 性, 不易在玻璃纤维布上产生薄膜而降低含浸性。
为了解决上述技术问题, 本发明提供了一种环氧基改质聚苯醚树脂, 该环 氧基改质聚苯醚树脂具有如式( I )表示的结构单元:
Figure imgf000003_0001
其中, X为
R为碳原子数 1至 5的亚烷基或 -S02;
Ί 、 Ζ2 、 Ζ3 、 Ζ4相同或不同, 且各自为表示为11、 卤素原子或烷基; Υ为官能化环氧树脂的官能基团, m、 n为大于 1的正整数。 需要说明的是, m、 n表示高分子化合物的聚合度, 上述各式及下面列举的各式中, m和 n均分 别取相同或不同的值。
式( I ) 中 X优选为:
Figure imgf000004_0001
优选地, 所述官能化环氧树脂为双酚 A环氧树脂、 双酚 F环氧树脂、 双酚 S环氧树脂、 苯酚酚醛环氧树脂、 双酚 A酚醛环氧树脂、 邻曱酚酚醛环氧树脂、 三官能基环氧树脂、 四官能基环氧树脂、 多官能基环氧树脂、 二环戊二烯环氧 树脂、 含碑环氧树脂、 含氮环氧树脂、 含溴环氧树脂、 对二曱苯环氧树脂、 萘 型环氧树脂、 苯并呱喃型环氧树脂、 联苯酚醛环氧树脂、 酚基苯烷基酚醛环氧 树脂中的一种或者两种以上的组合。
优选地, 式( I ) 中 Y为:
Figure imgf000004_0002
Figure imgf000005_0001
替换页 (细则第 26条)
Figure imgf000006_0001
优选地, 该环氧基改质聚苯醚树脂是由固态的聚苯醚树脂与环氧树脂按照 如下方法反应而制得: 将固态的聚苯醚树脂 100份, 添加聚合反应溶剂后溶成 液态聚苯醚树脂溶液, 再将环氧树脂 5〜60份及催化剂 0.001〜5份,加入溶液中, 于 80〜140°C下搅拌混合 1〜3小时而得预聚合溶液。 结合具体实施例中釆用对应 的原料和催化剂, 更优的原料配比和制备方法为: 将固态的聚苯醚树脂 100份, 添加聚合反应溶剂后溶成液态聚苯醚树脂溶液, 再将环氧树脂 24〜35份及催化 剂 0.005-1份,加入溶液中,于 100〜120°C下搅拌混合 1〜3小时而得预聚合溶液。
其中, 所述聚苯醚树脂为分子结构如式( II )所示:
Figure imgf000006_0002
其中, X为
R为碳原子数 1至 5的亚烷基或 -S02;
ΊΛ、 Ζ2 、 Ζ3 、 Ζ4相同或不同, 且各自为表示为 Η、 卤素原子或烷基, η 为大于 1的正整数。 式( II ) 中 R优选为:
Figure imgf000007_0001
而所述聚苯醚树脂优选为分子结构如式(III )和 /或式(IV ) 所示的高分子 化合物:
Figure imgf000007_0002
n为大于 1的正整数。
所述环氧树脂优选为双酚 A环氧树脂、双酚 F环氧树脂、双酚 S环氧树脂、 苯酚酚醛环氧树脂、 双酚 A酚醛环氧树脂、 邻曱酚酚醛环氧树脂、 三官能基环 氧树脂、 四官能基环氧树脂、 多官能基环氧树脂、 二环戊二烯环氧树脂、 含碑 环氧树脂、 含氮环氧树脂、 含溴环氧树脂、 对二曱苯环氧树脂、 萘型环氧树脂、 苯并呱喃型环氧树脂、 联苯酚醛环氧树脂、 酚基苯烷基酚醛环氧树脂中的一种 或者两种以上的组合。 进一步优选为双酚 A环氧树脂、 双酚 F环氧树脂、 苯酚 酚醛环氧树脂、 二环戊二烯环氧树脂和联苯酚醛环氧树脂中的一种或者两种以 上的组合。
优选地, 所述聚合反应溶剂为 N, N-二曱基曱酰胺、 N, N-二乙基曱酰胺、 丙酮、 丁酮、 环己酮、 乙二醇曱醚、 丙二醇曱醚中的一种或者两种以上的组合。 优选地, 所述催化剂为咪唑类化合物: 2-曱基咪唑、 1-曱基咪唑、 2-乙基 -4- 曱基咪唑、 2-苯基咪唑、 2-十一烷基咪唑、 2-苯基-曱基咪唑中的一种或者两种以 上的组合。
上述方案中揭示的环氧基改质聚苯醚树脂, 在其制备过程中所用原料的配 比以及催化剂的用量对于产物的质量、 制备效率存在重要的影响。 在环氧基改 质聚苯醚树脂的制备过程中, 以重量份计, 相对于 100份之聚苯醚树脂, 若环 氧树脂不足 5份则聚苯醚末端官能基不能充分接上环氧官能基, 从而影响聚苯 醚树脂的环氧基改善效率; 若环氧树脂超过 60份, 则会因残留过量未反应的环 氧树脂, 使得合成树脂的良率及物性 (如介电性能)不佳。 另外, 若催化剂不足 0.001份则反应速率较慢, 起不到明显催化效果; 若催化剂超过 5份则会使反应 速率太快, 影响产物的制备过程和产物的质量。
结合本发明的具体实施例, 从反应原理上看, 本发明揭露揭示的环氧基改 质聚苯醚树脂, 其反应机制及键结结构如化学式 1及化学式 2所示:
化学式 1
Figure imgf000009_0001
由此可见, 发明揭示的环氧基改质聚苯醚树脂在预聚合反应过程中, 不会 产生溴化物及氯化物等对环境有害的面化物, 相较于现有技术中揭示的尾端为 环氧基的聚苯醚树脂于制造过程中会产生对环境有害的卤化物, 本发明揭示的 环氧基改质聚苯醚树脂较环保, 降低了树脂制备过程中的环保投入, 并有效地 避免了对相应操作人员的可能损害。
另一方面, 本发明所解决的技术问题在于提供一种树脂组合物该树脂组合 物中包含上述方案中揭示的环氧基改质聚苯醚树脂。
优选地, 该组合物中还包含交联剂和硬化促进剂;
该组合物中各组分的重量份为: 环氧基改质聚苯醚 100份, 交联剂 1〜500 份, 硬化促进剂 0.001〜5份。
本发明所揭露的树脂组合物, 在其制备过程中所用原料的用量对于产物的 质量、 制备效率存在重要的影响。 具体而言, 相对于 100份的环氧基改质聚苯 醚树脂, 若交联剂不足 1 份则环氧基改质聚苯醚树脂末端的环氧官能基不能充 分反应固化, 使得组合物的 Tg玻璃转化温度:)过低; 若交联剂超过 500份则会 残留过量未反应的交联剂, 使得组合物的耐热性、 Tg等性能不佳; 若硬化促进 剂不足 0.001份则应速率较慢, 无明显催化效果; 若硬化促进剂超过 5份则使反 应速率太快, 影响产物的制备过程和产物的质量。
其中, 该树脂组成进一步包含 10〜1000重量份未经预聚合的环氧树脂, 所 述环氧树脂为双酚 A(bisphenol A)环氧树脂、 双酚 F(bisphenol F)环氧树脂、 双酚 S(bisphenol S)环氧树脂、 苯酚酚醛 (phenol novolac)环氧树脂、 双酚 A 酚醛 (bisphenol A novolac)环氧树脂、 邻曱酚 (o-cresol novolac)环氧树脂、 三官能基 (trifunctional)环氧树脂、 四官能基 (tetrafunctional)环氧树脂、 多官能基 (multifunctional)环氧树脂、二环戊二烯环氧树脂 [dicyclopentadiene (DCPD) epoxy resin],含磷环氧树脂、含氮环氧树脂、含溴环氧树脂、对二曱苯环氧树脂 (p-xylene epoxy resin)、 萘型 (naphthalene)环氧 4对月旨、 苯并 p南型 (benzopyran)环氧 4对月旨、 联 苯酚醛 (biphenyl novolac)环氧树脂、 酚基苯烷基酚醛 (phenol aralkyl novolac)环氧 树脂的一种或者两种以上的组合。
优选地, 所述交联剂选自苯酚树脂、 胺树脂、 酚醛树脂、 酸酐树脂、 苯乙 烯树脂、 丁二烯树脂、 聚酰胺树脂、 聚酰亚胺树脂、 聚酯树脂、 聚醚树脂、 氰 酸酯树脂、 异氰酸酯树脂、 马来酰亚胺树脂、 苯并恶嗪树脂的一种或者两种以 上的组合。
优选地, 所述硬化促进剂选自咪唑 (imidazole), 三氟化硼胺复合物、 氯化乙 基三苯基辚 (ethyltriphenyl phosphonium chloride) , 2-曱基咪 ρ坐 (2-methylimidazole, 2-MI)、 2-苯基咪唑(2-phenyl-lH-imidazole , 2PZ)、 2-乙基 -4-曱基咪唑 (2-ethyl-4-methylimidazole , 2E4MZ)、 三苯基膦 (triphenylphosphine, TPP)、 4-二 曱基胺基吡啶 (4-dimethylaminopyridine, DMAP) 中的至少一者的刘易斯碱,, 或 选自锰、 铁、 钴、 镍、 铜及辞中至少一者之金属盐化合物的刘易斯酸, 或选自 有机过氧化物, 如过氧化二异丙苯(DCP, Dicumyl Peroxide)。
优选地, 该树脂组合物中进一步包含无机填充物、 阻燃剂、 界面活性剂 (siloxane)、 分散剂(dispersion agent), 有机石圭弹性体、 溶剂、 增韧剂中的至少一 种。
其中, 所述无机填充物包含二氧化硅(熔融态或非熔融态与多孔质)、 氧化 铝、 氧化镁、 氢氧化镁、 碳酸 4弓、 氮化铝、 氮化硼、 氢氧化铝、 碳化铝硅、 碳 化硅、 碳酸钠、 二氧化钛、 氧化辞、 氧化锆、 石英、 钻石粉、 类钻石粉、 石墨、 碳酸镁、 钛酸钾、 陶瓷纤维、 云母、 勃姆石(boehmite, ALOOH)、 耐高温氢氧化 铝 (ALH)、 钼酸辞、 钼酸铵、 硼酸辞、 磷酸钙、 煅烧滑石、 滑石、 氮化硅、 段烧 高岭土、 黏土、 碱式硫酸镁晶须、 硫酸钡、 氢氧化镁晶须、 氧化镁晶须、 氧化 钙晶须、 奈米碳管、 奈米级无机粉体、 具有机核外层壳为绝缘体修饰之粉体粒 子中的至少一中, 且无机填充物为球型或针须状, 或者选择性经由接口活性剂 预处理。 另外, 为了保证成品良好的介电性能, 无机填充物为粒径 100 μ ιη以下 之颗粒粉末,优选为粒径 1-20 μ ιη之颗粒粉末, 最优为粒径 1 μ ιη以下至纳米尺 寸颗粒状粉末。针须状无机填充物为直径 50 μ m以下且长度为 1-200 μ m的粉末。
优选地, 所述阻燃剂选自含碑阻燃剂、 含氮阻燃剂、 含溴阻燃剂的一种或 者两种以上的组合。 其中, 常见的含碑阻燃剂如 OP-935, SPB-100, PX-200; 含 氮阻燃剂如 Melamine Cyanurate,含溴阻燃剂如 TBBPA, Tetra-Bromo-bisphenol A 均可用于本发明的技术方案中, 并达到良好的阻燃效果。
优选地, 所述界面活性剂(或称硅氧烷偶合剂, siloxane)可使用公知者, 并无 特别限定, 具体而言, 优选使用乙烯基三乙氧基硅烷、 乙烯基三曱氧基硅烷、 乙烯基参(β -曱氧基-乙氧基硅烷)、 γ -环氧丙氧基丙基三曱氧基硅烷、 γ - 胺丙基三乙氧基硅烷。 其中分散剂常用的有德国毕克 BYK-103、 BYK-901 , BYK-161 , BYK-164等产品, 但不以此为限。
优选地,所述有机硅弹性体 (hybrid type silicone powder)为橡胶及树脂型复合 粉体, 较佳为球状粉体。 添加有机硅弹性体可增加该树脂组成之耐热性、 冲击 吸收性。 一般市售之有机硅弹性体如信越生产的 X-52-7030、 KMP-605 , KMP-602, KMP-601、 KMP-600, KMP-590、 KMP-594等产品, 但不以此为限。
另外, 本发明所解决的技术问题还在于提供一种半固化胶片, 该半固化胶 片包括增强材料及浸润于增强材料上的基体, 所述基体为上述方案中揭示的环 氧基改质聚苯醚树脂组合物, 所述树脂组合物经由加热成半固化态并包覆于所 述增强材料。 所述的增强材料釆用天然的纤维、 有机合成纤维、 有机织物或无 机纤维制成。 再则, 本发明所解决的技术问题还在于提供一种使用上述环氧基改质聚苯 醚树脂组合物制作而成的层压板, 层压板包括至少一金属箔及至少一绝缘层, 该绝缘层为上述方案中揭示的半固化胶片经固化而成。 该层压板包括数片相粘 合的半固化胶片, 所述的半固化胶片釆用所述环氧基改质聚苯醚树脂组合物制
设置上述方案中揭示的层压板, 能够表现出良好的耐热性和介电性能, 有利于 高频线路板的信号传输。
相比于现有技术, 本发明的技术方案至少具备如下有益效果:
本发明所揭示的环氧基改质聚苯醚树脂, 将其用于印刷电路板的制备工艺 中, 能够改善铜箔层合板绝缘层之介电特性, 并使含有该环氧基改质聚苯醚树 脂的树脂组合物具有优良的玻璃纤维布含浸性, 不易在玻璃纤维布上产生薄膜。 釆用本发明的环氧基改质聚苯醚树脂的树脂组合物制作的层压材料及覆铜层压 板, 具有良好的耐热性和介电性能, 有利于高频线路板的信号传输。 另外, 本 发明的环氧基改质聚苯醚树脂, 是将聚苯醚树脂与双官能、 三官能或多官能环 氧树脂预先反应形成预聚物。 相较于现有技术中由环氧基丙烷反应制得的末端 环氧基聚苯醚树脂, 本发明的环氧基改质聚苯醚树脂在预聚合反应过程中, 不 会产生溴化物及氯化物等对环境有害的卤化物, 降低了树脂制备过程中的环保 投入, 并有效地避免了对相应操作人员的可能损害, 因而, 不仅制备流程简单、 高效、 环保, 且产品纯度可控性高。
下面结合具体实施方式进一步详细描述本发明, 但本发明不局限于这些实 施方式, 任何在本发明基本精神上的改进或替代, 仍属于本发明权利要求书中 所要求保护的范围。
具体实施方式 为使本发明更加容易理解, 下面将进一步阐述本发明的具体实施例。
实施例一
( 1 ) 环氧基改质聚苯醚树脂预聚体溶液制备:
将 100重量份的 PPO固态聚苯醚树脂 (MX-90沙伯基础创新塑料), 添加入 丁酮溶剂中,溶成液态聚苯醚树脂溶液,再将 24重量份的双酚 A型环氧树脂及, 0.05重量份的 2-曱基咪唑 (2-methylimidazole, 2-MI),加入丁酮溶液中, 于 120°C 下搅拌混合 1〜3小时而得之溶液。
( 2 ) 环氧基改质聚苯醚树脂组合物的制备
将 124重量份之步骤 (1) 环氧基改质聚苯醚树脂预聚体、 100重量份之双酚 A酚醛环氧树脂、 30重量份之苯酚酚醛树脂、 0.1重量份之 2-MI、 100重量份之 熔融态二氧化硅 f sed silica、 20重量份的含碑阻燃剂 ( PX-200,日本大八化学) 和 30重量份之丙二醇曱醚溶剂混合、 分散均匀。
( 3 )树脂组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
实施例二
( 1 ) 环氧基改质聚苯醚树脂预聚体溶液制备:
将 100重量份的 PPO固态聚苯醚树脂 (MX-90沙伯基础创新塑料), 添加入 丁酮溶剂中, 溶成液态聚苯醚树脂溶液, 再将 35重量份的二环戊二烯型环氧树 脂及 0.05重量份的 2-MI, 加入丁酮溶液中, 于 120 °C下搅拌混合 1〜3小时而得 预聚体之溶液。 (2) 环氧基改质聚苯醚树脂组合物的制备
将 135重量份之步骤 (1) 环氧基改质聚苯醚树脂预聚体、 100重量份之双酚 A酚醛环氧树脂、 30重量份之苯酚酚醛树脂、 0.1重量份之 2-MI、 100重量份之 熔融态二氧化硅 fused silica, 20重量份含碑阻燃剂 ( PX-200,日本大八化学)和 30重量份之丙二醇曱醚溶剂混合、 分散均匀。
(3)树脂组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
实施例三
( 1 ) 环氧基改质聚苯醚树脂预聚体溶液制备:
将 100重量份的 PPO固态聚苯醚树脂 (MX-90沙伯基础创新塑料), 添加入 丁酮溶剂中, 溶成液态聚苯醚树脂溶液, 再将 33重量份的联苯基芳烷基型酚醛 清漆环氧树脂及 0.05重量份的 2-MI,加入丁酮溶液中,于 120 °C下搅拌混合 1〜3 小时而得预聚体之溶液。
(2) 环氧基改质聚苯醚树脂组合物的制备
将 133重量份之步骤 (1) 环氧基改质聚苯醚树脂预聚体、 100重量份之双酚 A酚醛环氧树脂、 30重量份之苯酚酚醛树脂、 0.1重量份之 2-MI、 100重量份之 熔融态二氧化硅 fused silica, 20重量份含碑阻燃剂 ( PX-200,日本大八化学)和 30重量份之丙二醇曱醚溶剂混合、 分散均匀。
(3) 树脂组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
比较例一
(1) 树脂组合物的制备
将 24重量份之双酚 A环氧树脂、 100重量份之聚苯醚树脂、 100重量份之 双酚 A酚醛环氧树脂、 30重量份之苯酚酚酸树脂、 0.1重量份之 2-MI、 100重 量份之熔融态二氧化硅 fused silica、 20重量份含碑阻燃剂 ( PX-200,日本大八化 学)和 30重量份之丙二醇曱醚溶剂混合、 分散均匀。
(2) 树脂组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
比较例二
(1) 树脂组合物的制备
将 35重量份之二环戊二烯型环氧树脂;、 100重量份之 PPO固态聚苯醚树 脂 (MX-90沙伯基础创新塑料)、 100重量份之双酚 A酚醛环氧树脂、 30重量份 之苯酚酚酸树脂、 0.1重量份之 2-MI、 100重量份之熔融态二氧化硅 f sed silica、 20重量份含碑阻燃剂 (PX-200,日本大八化学和 30重量份之丙二醇曱醚溶剂混 合、 分散均匀。
(2) 组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
比较例三
(1) 树脂组合物的制备
将 33重量份之联苯环氧树脂; 100重量份之聚苯醚树脂、 100重量份之双 酚 A酚醛环氧树脂、 30重量份之苯酚酚醛树脂、 0.1重量份之 2-MI、 100重量 份之熔融态二氧化硅 fused silica, 20重量份的含碑阻燃剂 ( PX-200,日本大八化 学和 30重量份之丙二醇曱醚溶剂混合、 分散均匀。
(2) 树脂组合物的半固化及基板的制备
将上述的环氧基改质聚苯醚树脂组合物经与玻纤维布含浸后,在 170°C烘烤 3分钟制作半固化片; 再将两片铜箔迭合于所制得之 4片半固化片两侧, 釆用真 空热压机, 在温度 190°C、 压力 35Kg/cm2、 压合时间 65min条件下, 压合成型, 以获得一种铜箔积层板, 其中半固化胶片固化形成两铜箔间之绝缘层。
将实施例一、 二、 三及比较例一、 二、 三所得的半固化胶片观察其外观并 记录如表一所示, 结果显示实施例一、 二、 三之半固化胶片外观较平整, 且内 部气泡量较少。 比较例一、 二、 三之半固化胶片外观则非常粗糙, 且玻纤布于 含浸时表面会成膜, 造成含浸性不良, 显示本发明揭示的环氧官能基改质聚苯 醚树脂能有效改善半固化胶片之含浸性。
表一 半固化胶片外观
Figure imgf000017_0001
将实施例一、 二、 三及比较例一、 二、 三所得的层合板进行特性量测如表 二所示, 结果显示实施例一、 二、 三的电性分别稍为优于比较例一、 二、 三, 显示本发明揭露之环氧官能基改质之聚苯醚树脂相较于分别添加聚苯醚树脂及 环氧树脂能得到较佳的介电性能 (Dk/Df)及较佳的 Tg (玻璃转化温度), 其中 Dk 及 Df值较低为较佳之电性, Tg温度较高为较佳之 Tg。
表二层合板特性
Figure imgf000018_0001
以上所述是本发明的优选实施方式, 应当指出, 对于本技术领域的普通技 术人员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润饰, 这 些改进和润饰也视为本发明的保护范围。

Claims

1、 一种环氧基改质聚苯醚树脂, 其特征在于, 该环氧基改质聚苯醚树脂具有如 式( I )表示的结构单元:
Figure imgf000019_0001
其中, X为
R为碳原子数 1至 5的亚烷基或 -S02;
Ί 、 Ζ2 、 Ζ3 、 Ζ4相同或不同, 卤素原子或烷基;
Υ为官能化环氧树脂的官能基团, 其中 m、 n为大于 1的正整数。
2、如权利要求 1所述的环氧基改质聚苯醚树脂, 其特征在于, 式( I )中 X为
Figure imgf000019_0002
3、 如权利要求 1所述的环氧基改质聚苯醚树脂, 其特征在于, 所述官能化环氧 树脂为双酚 A环氧树脂、 双酚 F环氧树脂、 双酚 S环氧树脂、 苯酚酚醛环氧树脂、 双酚 A酚醛环氧树脂、 邻曱酚酚醛环氧树脂、 三官能基环氧树脂、 四官能基环氧树 脂、 多官能基环氧树脂、 二环戊二烯环氧树脂、 含碑环氧树脂、 含氮环氧树脂、 含 溴环氧树脂、 对二曱苯环氧树脂、 萘型环氧树脂、 苯并呱喃型环氧树脂、 联苯酚醛 环氧树脂、 酚基苯烷基酚醛环氧树脂中的一种或者两种以上的组合。
4、如权利要求 3所述的环氧基改质聚苯醚树脂, 其特征在于, 式( I )中 Y为:
Figure imgf000020_0001
替换页 (细则第 26条)
Figure imgf000021_0001
5、 如权利要求 1所述的环氧基改质聚苯醚树脂, 其特征在于: 该环氧基改质聚 笨醚树脂是由固态的聚笨醚树脂与环氧树脂按照如下方法反应而制得: 将固态的聚 苯醚树脂 100份,添加聚合反应溶剂后溶成液态聚苯酸树脂溶液,再将环氧树脂 5〜60 份及催化剂 0.001~5份, 加入溶液中, 于 80~140°C下撹拌混合 1-3小时而得预聚合 溶液。
6、 如权利要求 5所述的环氧基改质聚笨醚树脂, 其特征在于: 所述聚苯醚树脂
20 替换页 (细则第 26条) 为分子结构如式( II )所示:
Figure imgf000022_0001
其中, X为
R为碳原子数 1至 5的亚烷基或 -S02;
Z2 、 Z3 、 Z4相同或不同, 且各自为表示为 H、 卤素原子或烷基, n为大 于 1的正整数。
7、如权利要求 6所述的环氧基改质聚苯醚树脂, 其特征在于: 式( II )中 X为:
Figure imgf000022_0002
8、 如权利要求 6所述的环氧基改质聚苯醚树脂, 其特征在于: 所述聚苯醚树脂 为分子结构如式 ( III )和 /或式 ( IV )所示的高分子化合物:
Figure imgf000022_0003
n为大于 1的正整数
9、 如权利要求 5所述的环氧基改质聚苯醚树脂, 其特征在于: 所述环氧树脂为 双酚 A环氧树脂、 双酚 F环氧树脂、 双酚 S环氧树脂、 苯酚酚醛环氧树脂、 双酚 A 酚醛环氧树脂、 邻曱酚酚醛环氧树脂、 三官能基环氧树脂、 四官能基环氧树脂、 多 官能基环氧树脂、 二环戊二烯环氧树脂、 含碑环氧树脂、 含氮环氧树脂、 含溴环氧 树脂、 对二曱苯环氧树脂、 萘型环氧树脂、 苯并呱喃型环氧树脂、 联苯酚醛环氧树 脂、 酚基苯烷基酚醛环氧树脂中的一种或者两种以上的组合。
10、 如权利要求 5 所述的环氧基改质聚苯醚树脂, 其特征在于: 所述聚合反应 溶剂为 N, N-二曱基曱酰胺、 N, N-二乙基曱酰胺、 丙酮、 丁酮、 环己酮、 乙二醇曱 醚、 丙二醇曱醚中的一种或者两种以上的组合。
11、 如权利要求 5 所述的环氧基改质聚苯醚树脂, 其特征在于: 所述催化剂为 咪唑类化合物: 2-曱基咪唑、 1-曱基咪唑、 2-乙基 -4-曱基咪唑、 2-苯基咪唑、 2-十一 烷基咪唑、 2-苯基-曱基咪唑中的一种或者两种以上的组合。
12、 一种树脂组合物, 其特征在于: 该树脂组合物中包含如权利要求 1〜11中任 意一项所述的环氧基改质聚苯醚树脂。
13、 如权利要求 12所述的树脂组合物, 其特征在于:
该组合物中还包含交联剂和硬化促进剂;
该组合物物中各组分的重量份为: 环氧基改质聚苯醚 100份, 交联剂 1〜500份, 硬化促进剂 0.001〜5份。
14、 如权利要求 13 所述的树脂组合物, 其特征在于: 该树脂组成进一步包含 10〜1000重量份未经预聚合的环氧树脂, 所述环氧树脂为双酚 A环氧树脂、 双酚 F 环氧树脂、 双酚 S环氧树脂、 苯酚酚醛环氧树脂、 双酚 A酚醛环氧树脂、 邻曱酚酚 醛环氧树脂、 三官能基环氧树脂、 四官能基环氧树脂、 多官能基环氧树脂、 二环戊 二烯环氧树脂、 含碑环氧树脂、 含氮环氧树脂、 含溴环氧树脂、 对二曱苯环氧树脂、 萘型环氧树脂、 苯并呱喃型环氧树脂、 联苯酚醛环氧树脂、 酚基苯烷基酚醛环氧树 脂中的一种或者两种以上的组合。
15、 如权利要求 13所述的树脂组合物, 其特征在于: 该树脂组合物中进一步包 含阻燃剂、 界面活性剂、 分散剂、 有机硅弹性体、 溶剂、 增韧剂中的至少一种。
16、 一种半固化胶片, 其特征在于: 该半固化胶片包括增强材料及浸润于增强 材料上的基体, 所述基体为如权利要求 12所述的树脂组合物, 所述树脂组合物经由 加热成半固化态并包覆于所述增强材料。
17、 一种层压板, 其特征在于: 该层压板包括至少一金属箔及至少一绝缘层, 该绝缘层为如权利要求 16所述的半固化胶片经固化而成。
18、 一种电路板, 其特征在于: 该电路板包括至少一种如申请权利要求 17所述 的层压板。
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