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CN104845365B - A kind of halogen-free resin composition and application thereof - Google Patents

A kind of halogen-free resin composition and application thereof Download PDF

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Publication number
CN104845365B
CN104845365B CN201410052010.XA CN201410052010A CN104845365B CN 104845365 B CN104845365 B CN 104845365B CN 201410052010 A CN201410052010 A CN 201410052010A CN 104845365 B CN104845365 B CN 104845365B
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halogen
free resin
resin composition
weight portions
allyl
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CN104845365A (en
Inventor
杨虎
何岳山
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Shengyi Technology Co Ltd
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Shengyi Technology Co Ltd
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Priority to CN201410052010.XA priority Critical patent/CN104845365B/en
Priority to TW103110692A priority patent/TW201531524A/en
Priority to PCT/CN2014/073839 priority patent/WO2015120651A1/en
Publication of CN104845365A publication Critical patent/CN104845365A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/28Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • 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
    • C08G14/00Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
    • C08G14/02Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
    • C08G14/04Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
    • C08G14/06Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/14Peroxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/16Solid spheres
    • C08K7/18Solid spheres inorganic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00Compositions 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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02Homopolymers or copolymers of hydrocarbons
    • C08L25/04Homopolymers or copolymers of styrene
    • C08L25/08Copolymers of styrene
    • C08L25/10Copolymers of styrene with conjugated dienes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/34Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C08L61/04, C08L61/18 and C08L61/20
    • 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
    • C08L71/126Polyphenylene oxides modified by chemical after-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10Inorganic particles
    • B32B2264/102Oxide or hydroxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/20Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/204Di-electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • B32B2307/3065Flame resistant or retardant, fire resistant or retardant

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The invention discloses a kind of halogen-free resin composition and with prepreg made by which and laminate, in terms of organic solid content weight portion, the halogen-free resin composition is included:(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;(B)Hydrocarbon resin, 20~60 weight portions;(C)Initiator, 0.01~3 weight portion;(D)Filler, 10~100 weight portions, and(E)Phosphonium flame retardant, 0~80 weight portion.With prepreg and laminate made by the halogen-free resin composition, which has relatively low dielectric constant and a dielectric loss tangent value, higher peel strength, excellent heat resistance, preferable flame retardant effect.

Description

A kind of halogen-free resin composition and application thereof
Technical field
The invention belongs to copper-clad laminate preparing technical field, is related to a kind of halogen-free resin composition and application thereof, tool A kind of body is related to halogen-free resin composition, prepared using the halogen-free resin composition resin adhesive liquid, prepreg, laminate and Copper-clad laminate.
Background technology
Traditional printed circuit copper-clad laminate, mainly using brominated epoxy resin, realizes sheet material by bromine Anti-flaming function.But Er Evil are verified in the combustion product of the waste electrical and electronic equipment of the halogens such as brominated, chlorine in recent years, The carcinogens such as English, dibenzofurans, and halogen product is possible to discharge extremely toxic substance hydrogen halides in combustion.This Outward, on July 1st, 2006, two parts of environmental protection instructions of European Union《With regard to scrapping electric/electronic device instruction》With《With regard in electric and electronic Limit using some Hazardous Substances Directives in equipment》It is formal to implement.Due to not environmentally property and the Europe of halogen-containing product combustion product The enforcement of two parts of environmental protection instructions of alliance so that the focus for being developed into industry of halogen-free flameproof copper-clad laminate, respectively covers Copper Foil Laminate producer all releases the halogen-free flameproof copper-clad laminate of oneself one after another.
In recent years, with computer and the development of information communication device high performance, multifunction and networking, in order to High-speed transfer and process Large Copacity information, operation signal is intended to high frequency, thus proposes requirement to the material of circuit substrate. In the existing material for tellite, the excellent epoxy resin of adhesion properties is widely used.However, epoxy resin is electric The general dielectric constant of base board and dielectric loss angle tangent are higher(Dielectric constant is more than 4, dielectric loss angle tangent 0.02 or so), High frequency characteristics is insufficient, it is impossible to adapt to the requirement of signal high frequency.Therefore the excellent resin of dielectric property, i.e. dielectric must be developed The low resin of constant and dielectric loss angle tangent.Those skilled in the art is heat cured well to dielectric properties for a long time Polybutadiene or polybutadiene are studied with cinnamic copolymer resin.
Tetramers of the WO97/38564 using nonpolar styrene with butadiene and divinylbenzene adds aluminosilicate magnesium Filler, using circuit substrate made by glass fabric as reinforcing material, although dielectric properties are excellent, but the heat resistance of substrate Very poor, glass transition temperature only has 100 DEG C or so, and thermal coefficient of expansion is very big, it is difficult to meet the unleaded processing procedure of PCB manufacturing process High temperature(More than 240 DEG C)Require.
US5571609 using molecular weight less than 5000 low-molecular-weight 1,2- polybutadienes or polyisobutene and The butadiene of HMW is coordinated with cinnamic copolymer, and adds substantial amounts of silicon powder as filler, with glass fabric As the circuit substrate that reinforcing material makes, although dielectric properties are excellent, but are because employing HMW in that patent Composition improving the viscous hand situation of prepreg so that the processing performance for making the process of prepreg is deteriorated;And it is because whole The ratio of the rigid structure phenyl ring in the molecular resin of individual resin system seldom, and is crosslinked later segment mostly by rigidly very Low methylene composition, therefore the panel stiffness being fabricated to is bad, bending strength is very low.
Liquid polybutadiene resins of the US6569943 using amino modified of the molecular end with vinyl, addition are a large amount of Low-molecular-weight the circuit substrate that is fabricated to as curing agent and diluent, impregnated glass fiber cloth of monomer Dowspray 9, Although dielectric properties very well, are because that resin system is liquid at normal temperatures, it is impossible to be fabricated to tack-free prepreg, because This sheet material it is compressing when, it is difficult with that general prepreg is folded to foretell technique, technological operation is relatively difficult.
CN1280337C carries the polyphenylene oxide resin of unsaturated double-bond using molecular end, using the low molecule of low-molecular-weight The vinyl monomer of amount(Such as Dowspray 9)As curing agent, but due to the monomer low boiling point of these low-molecular-weights, in dipping Can vapor away in the drying course of glass fabric making prepreg, it is difficult to ensure sufficient hardener dose.In addition this Although bright referring to can adopt polybutadiene resinoid to go the viscosity of modified system, clearly do not propose using with polar group The polybutadiene resinoid of polybutadiene resinoid and employing with polar group rolled into a ball can improve peel strength.
CN101544841B uses the hydrocarbon resin of molecular weight contents of ethylene more than 60% below 11000 as main body, adopts The tacky characteristic of prepreg is improved with the phenolic resin that pi-allyl is modified, peel strength has certain lifting, but system solidifies Heat resistance afterwards is low, and the risk that failure occurs being layered in PCB process in copper-clad laminate is higher.
System based on hydrocarbon resin, which is relatively low with the heat resistance of the bonding force of metal and system, for covering copper The failure risk of larger probability is brought in the PCB process in plate downstream.
The content of the invention
For the problem in prior art, an object of the present invention is to provide a kind of halogen-free resin composition, is used Prepreg and laminate prepared by the halogen-free resin composition has relatively low dielectric constant and dielectric loss tangent value, higher Peel strength, excellent heat resistance and excellent flame retardant effect.
In order to achieve the above object, present invention employs following technical scheme:
A kind of halogen-free resin composition, in terms of organic solid content weight portion, which includes:
(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;
(B)Hydrocarbon resin, 20~60 weight portions;
(C)Initiator, 0.01~3 weight portion.
In the resin system, pi-allyl modifying benzoxazine resin is mainly system and contributes excellent heat resistance and bonding Property, but its dielectric properties is relatively poor;And hydrocarbon resin is then mainly system and contributes excellent dielectric properties;But which is heat-resisting Property and cohesive are relatively poor.The present invention using pi-allyl modifying benzoxazine resin for system provide excellent heat resistance and Excellent cohesive, coordinates the hydrocarbon resin of excellent electrical property, further improves the electrical property of curing system.Pi-allyl is modified benzene Carbon-carbon double bond in Bing oxazines resin and hydrocarbon resin Jing Radical Additions in the presence of initiator, shoot up composition The huge crosslinked resin network of son amount, the cured product for obtaining have excellent heat resistance, cohesive and dielectric properties.
The component(A)The content of pi-allyl modifying benzoxazine resin is, for example, 42 weight portions, 44 weight portions, 46 weight Part, 48 weight portions, 50 weight portions, 52 weight portions, 54 weight portions, 56 weight portions, 58 weight portions, 60 weight portions, 62 weight portions, 64 Weight portion, 66 weight portions, 68 weight portions, 70 weight portions, 72 weight portions, 74 weight portions, 76 weight portions or 78 weight portions.
The component(B)The content of hydrocarbon resin be, for example, 22 weight portions, 24 weight portions, 26 weight portions, 28 weight portions, 30 Weight portion, 32 weight portions, 34 weight portions, 36 weight portions, 38 weight portions, 40 weight portions, 42 weight portions, 44 weight portions, 46 weight Part, 48 weight portions, 50 weight portions, 52 weight portions, 54 weight portions, 56 weight portions or 58 weight portions.
The component(C)The content of initiator is, for example, 0.03 weight portion, 0.05 weight portion, 0.08 weight portion, 0.1 weight Part, 0.4 weight portion, 0.7 weight portion, 1 weight portion, 1.3 weight portions, 1.5 weight portions, 1.7 weight portions, 1.9 weight portions, 2.1 weights Amount part, 2.3 weight portions, 2.5 weight portions, 2.7 weight portions or 2.9 weight portions.
Preferably, on the basis of the technical scheme that the present invention is provided, a kind of halogen-free resin composition, with organic solid content Weight portion meter, which includes:
(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;
(B)Hydrocarbon resin, 20~60 weight portions;
(C)Initiator, 0.01~3 weight portion;
Wherein, content of the content of pi-allyl modifying benzoxazine resin more than hydrocarbon resin.
In the resin system, pi-allyl modifying benzoxazine resin is mainly system and contributes excellent heat resistance and bonding Property, but its dielectric properties is relatively poor;And hydrocarbon resin is then mainly system and contributes excellent dielectric properties;But which is heat-resisting Property and cohesive are relatively poor.With pi-allyl modifying benzoxazine resin as matrix resin, which provides excellent for system to the present invention Heat resistance and excellent cohesive, coordinate excellent electrical property hydrocarbon resin, further improve the electrical property of curing system. And, the Jing free radical additions in the presence of initiator of the carbon-carbon double bond in pi-allyl modifying benzoxazine resin and hydrocarbon resin Reaction, shoots up into the huge crosslinked resin network of molecular weight, as pi-allyl modifying benzoxazine resin is matrix resin, Therefore the heat resistance of system and cohesive are significantly increased compared with hydrocarbon resin, while the electrical property of cured product has obtained preferable guarantor Hold.
Preferably, on the basis of the technical scheme that the present invention is provided, a kind of halogen-free resin composition, with organic solid content Weight portion meter, which includes:
(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;
(B)Hydrocarbon resin, 20~60 weight portions;
(C)Initiator, 0.01~3 weight portion;
Wherein, content of the content of hydrocarbon resin more than pi-allyl modifying benzoxazine resin.
In copper-clad plate field for the copper-clad plate of different purposes has not to the heat resistance of system, cohesive and dielectric properties Same stresses demand, so for for the copper-clad plate of the special-purpose for having requirements at the higher level to the dielectric properties of system, Ke Yi It is appropriate in certain limit to reduce to, when copper-clad plate heat resistance and caking property requirement, the present invention be big by adjusting hydrocarbon resin content Realize in pi-allyl modifying benzoxazine resin.
Preferably, on the basis of the technical scheme that the present invention is provided, a kind of halogen-free resin composition, with organic solid content Weight portion meter, which includes:
(A)Pi-allyl modifying benzoxazine resin, 60~80 weight portions;
(B)Hydrocarbon resin, 40~50 weight portions;
(C)Initiator, 0.01~3 weight portion.
Preferably, on the basis of the technical scheme that the present invention is provided, the component(A)Pi-allyl modified benzoxazine tree Fat is modified selected from pi-allyl modified bisphenol A type benzoxazine colophony, pi-allyl modified bisphenol F type benzoxazine colophonies, pi-allyl Dicyclopentadiene phenolic benzoxazine colophony, pi-allyl modified bisphenol S types benzoxazine colophony or two amine type benzoxazine colophonies In any one or at least two mixture.The mixture such as pi-allyl modified bisphenol A type benzoxazine colophony With the mixture of pi-allyl modified bisphenol F type benzoxazine colophonies, the modified dicyclopentadiene phenolic benzoxazine colophony of pi-allyl With the mixture of pi-allyl modified bisphenol S type benzoxazine colophonies, two amine type benzoxazine colophonies, pi-allyl modified bisphenol A type The mixture of benzoxazine colophony and pi-allyl modified bisphenol F type benzoxazine colophonies, the modified dicyclopentadiene phenolic of pi-allyl The mixture of benzoxazine colophony, pi-allyl modified bisphenol S types benzoxazine colophony and two amine type benzoxazine colophonies.
Preferably, on the basis of the technical scheme that the present invention is provided, the hydrocarbon resin is number-average molecular weight 11000 It is more than 60% by the contents of ethylene that hydrocarbon two kinds of elements are constituted below, is the hydrocarbon resin of liquid at room temperature, preferred number is divided equally Less than 7000 and 1, the contents of ethylene of 2 additions is more than 70% to son amount, is the hydrocarbon resin of liquid at room temperature.
Preferably, on the basis of the technical scheme that the present invention is provided, the initiator is to decompose under the action of heat Go out the material of free radical, selected from organic peroxide, preferred cumyl peroxide, peroxidized t-butyl perbenzoate or 2,5- bis- In (2- ethyihexanoylperoxies) -2,5- dimethylhexanes any one or at least two mixture.The mixture is for example The mixture of cumyl peroxide and peroxidized t-butyl perbenzoate, 2,5- bis- (2- ethyihexanoylperoxies) -2,5- dimethyl The mixture of hexane and cumyl peroxide, bis- (2- ethyihexanoylperoxies) -2,5- of peroxidized t-butyl perbenzoate and 2,5- The mixture of dimethylhexane, cumyl peroxide, peroxidized t-butyl perbenzoate and 2,5- bis- (2- ethyihexanoylperoxies)- The mixture of 2,5- dimethylhexanes.
Preferably, on the basis of the technical scheme that the present invention is provided, the halogen-free resin composition also includes(D)Fill out Material.
Preferably, on the basis of the technical scheme that the present invention is provided, the content of described filler is 1~100 weight portion, example Such as 5 weight portions, 10 weight portions, 15 weight portions, 20 weight portions, 25 weight portions, 30 weight portions, 35 weight portions, 40 weight portions, 45 Weight portion, 50 weight portions, 55 weight portions, 60 weight portions, 65 weight portions, 70 weight portions, 75 weight portions, 80 weight portions, 85 weight Part, 90 weight portions or 95 weight portions, preferably 10~100 weight portions.
Preferably, the present invention provide technical scheme on the basis of, described filler selected from silica, titanium dioxide, In strontium titanates, barium titanate, boron nitride, aluminium nitride, carborundum or aluminum oxide any one or at least two mixture, it is excellent Select powdered quartz, amorphous silica, preparing spherical SiO 2, titanium dioxide, strontium titanates, barium titanate, boron nitride, nitrogen Change aluminium, in carborundum or aluminum oxide any one or at least two mixture, the mixture such as crystal type dioxy The mixture of the mixture of SiClx and amorphous silica, preparing spherical SiO 2 and titanium dioxide, strontium titanates and barium titanate The mixture of the mixture of mixture, boron nitride and nitridation, carborundum and aluminum oxide, powdered quartz, amorphous dioxy The mixture of SiClx and preparing spherical SiO 2, the mixture of titanium dioxide, strontium titanates and barium titanate, boron nitride, aluminium nitride, carbonization The mixture of silicon and aluminum oxide.
Preferably, on the basis of the technical scheme that the present invention is provided, described filler is silica.
Preferably, on the basis of the technical scheme that the present invention is provided, in the particle diameter of described filler, angle value is 1~15 μm, Such as 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm or 14 μm, enter by preferably 1~10 μm Preferably 1~5 μm of one step.Filler positioned at the particle diameter section has good dispersiveness in resin adhesive liquid.
Preferably, on the basis of the technical scheme that the present invention is provided, the halogen-free resin composition also includes(E)It is phosphorous Fire retardant.
Preferably, on the basis of the technical scheme that the present invention is provided, the content of the phosphonium flame retardant is 0~80 weight Part, not including 0, such as 0.05 weight portion, 1 weight portion, 3 weight portions, 5 weight portions, 10 weight portions, 15 weight portions, 20 weight portions, 25 weight portions, 30 weight portions, 35 weight portions, 40 weight portions, 45 weight portions, 50 weight portions, 55 weight portions, 60 weight portions, 65 weights Amount part, 70 weight portions, 72 weight portions, 74 weight portions, 76 weight portions or 78 weight portions.
Preferably, on the basis of the technical scheme that the present invention is provided, the phosphonium flame retardant is three (2,6- dimethyl benzenes Base) phosphine, the miscellaneous -10- phosphines phenanthrene -10- oxides of 10- (2,5- dihydroxy phenyls) -9,10- dihydro-9-oxies, bis- (2,6- diformazans of 2,6- Base phenyl) phosphino- benzene, the miscellaneous -10- phosphines phenanthrene -10- oxides of 10- phenyl -9,10- dihydro-9-oxies or polyphenylene oxide phosphonitrile and its spread out In biology any one or at least two mixture.
Preferably, on the basis of the technical scheme that the present invention is provided, the content of halogen of the halogen-free resin composition exists Below 0.09 weight %, such as 0.01 weight %, 0.02 weight %, 0.03 weight %, 0.04 weight %, 0.05 weight %, 0.06 weight Amount %, 0.07 weight % or 0.08 weight %.
A kind of exemplary halogen-free resin composition, in terms of organic solid content weight portion, which includes:
(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;
(B)Hydrocarbon resin, 20~60 weight portions;
(C)Initiator, 0.01~3 weight portion;
(D)Filler, 1~100 weight portion;
(E)Phosphonium flame retardant, 0~80 weight portion, not including 0.
A kind of exemplary halogen-free resin composition, in terms of organic solid content weight portion, which includes:
(A)Pi-allyl modifying benzoxazine resin, 40~80 weight portions;
(B)Hydrocarbon resin, 20~60 weight portions;
(C)Initiator, 0.01~3 weight portion;
(D)Filler, 1~100 weight portion;
(E)Phosphonium flame retardant, 0~80 weight portion, not including 0;
Wherein, content of the content of pi-allyl modifying benzoxazine resin more than hydrocarbon resin.
A kind of exemplary halogen-free resin composition, in terms of organic solid content weight portion, which includes:
(A)Pi-allyl modifying benzoxazine resin, 60~80 weight portions;
(B)Hydrocarbon resin, 40~50 weight portions;
(C)Initiator, 0.01~3 weight portion;
(D)Filler, 1~100 weight portion;
(E)Phosphonium flame retardant, 0~80 weight portion, not including 0.
" including " of the present invention, it is intended which can also include other components, these other components in addition to the component Give the halogen-free resin composition different characteristics.In addition, " including " of the present invention, may be replaced by closing " being " of formula or " by ... constitute ".
For example, the halogen-free resin composition can also contain various additives, as concrete example, can enumerate antioxygen Agent, heat stabilizer, antistatic additive, ultra-violet absorber, pigment, colouring agent or lubricant etc..These various additives can be single Solely use, it is also possible to which two kinds two or more are used in mixed way.
The second object of the present invention is to provide a kind of resin adhesive liquid, and which is will be halogen-free resin composition as above molten Solution or dispersion are obtained in a solvent.
As the solvent in the present invention, be not particularly limited, as concrete example, can enumerate acetone, butanone, cyclohexanone, In EGME, propylene glycol monomethyl ether, propylene glycol methyl ether acetate, benzene, toluene and dimethylbenzene at least any one or At least two mixture, its consumption can as needed depending on, be not especially limited, so as to get resin adhesive liquid reach and be suitable to make Viscosity.
The conventional preparation method of exemplary halogen-free resin composition glue is:First the solid content in said components is put Enter in appropriate container, then solubilizer, after stirring is until be completely dissolved, adds appropriate filler, be eventually adding liquid tree Fat and initiator, continue to stir.The solids content 65~75% of solution can suitably be adjusted with solvent during use and be made Glue.
The third object of the present invention is to provide a kind of prepreg, and which includes reinforcing material and adheres to after impregnation is dried Halogen-free resin composition as above on reinforcing material.The prepreg its there is relatively low dielectric constant and dielectric to damage Consumption tangent value, higher peel strength, excellent heat resistance, preferable flame retardant effect.
The reinforcing material is the reinforcing material disclosed in prior art, such as adhesive-bonded fabric or braided fabric, exemplary Such as natural fiber, organic synthetic fibers and inorfil, preferably electronic-grade glass fiber cloth.
Above-mentioned resin adhesive liquid is impregnated with using the fabrics such as reinforcing material glass fabric or organic fabric, by the enhancing being impregnated with Material is dried 5~8 minutes in 170 DEG C of baking oven makes printed circuit prepreg.
The fourth object of the present invention is to provide a kind of laminate, and the laminate contains at least one as above in advance Leaching material.
The fifth object of the present invention is to provide a kind of copper-clad laminate, and the copper-clad laminate includes at least one The prepreg as above for overlapping and the Copper Foil of the one or both sides for covering the prepreg after overlapping.The copper foil covered pressure Plate, which has relatively low dielectric constant and a dielectric loss tangent value, higher peel strength, excellent heat resistance, preferably hinders Fuel efficiency fruit.
The preparation method of exemplary copper-clad laminate is:Using one ounce of above-mentioned prepreg 4 and two panels(35μm It is thick)Copper Foil be superimposed together, by hot press be laminated, so as to be pressed into doublesided copperclad laminate;Described covers Copper Foil Lamination need to meet claimed below:1st, the heating rate of lamination, generally in 80~220 DEG C of material temperature, controls at 1.0~3.0 DEG C/minute Clock;2nd, the pressure of lamination is arranged, and outer layer material temperature applies full pressure at 80~100 degrees Celsius, and full pressure pressure is 300psi or so;3、 During solidification, control material temperature is at 220 DEG C, and is incubated 120 minutes;The metal forming for being covered can also be nickel foil, aluminium foil in addition to Copper Foil And SUS paper tinsels etc., its material is not limited.
Compared with the prior art, the present invention has the advantages that:
The present invention provides excellent heat resistance and excellent for system based on pi-allyl modifying benzoxazine resin Electrical property, coordinates the hydrocarbon resin of excellent electrical property, further improves the electrical property of curing system.In the present invention, pi-allyl changes Property benzoxazine colophony and hydrocarbon resin in carbon-carbon double bond in the presence of initiator Jing Radical Additions, shoot up Into the huge crosslinked resin network of molecular weight, as pi-allyl modifying benzoxazine resin is matrix resin, therefore system is heat-resisting Property and cohesive are significantly increased compared with hydrocarbon resin, while the electrical property of cured product has obtained preferable holding.Using this Prepreg made by bright halogen-free resin composition has relatively low dielectric constant and dielectric loss tangent value, and higher stripping is strong Degree, excellent heat resistance, preferable flame retardant effect;Using copper-clad laminate made by the prepreg, which has relatively low dielectric Constant and dielectric loss tangent value, higher peel strength, excellent heat resistance, preferable flame retardant effect.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
The example composition formula is shown in Table 1.Using the copper foil covered pressure of use in printed circuit board made by said method The physical datas such as plate, its dielectric constant, dielectric dissipation factor and anti-flammability are shown in Table 2.
The concrete component of the halogen-free resin composition is as follows:
(A)Pi-allyl modifying benzoxazine resin
A-1 pi-allyl modified bisphenol A type benzoxazine colophonies
The modified dicyclopentadiene phenolic benzoxazine colophony of A-2 pi-allyls
A-3 pi-allyl modified bisphenol F type benzoxazine colophonies
(B)Hydrocarbon resin
B-1 butadiene styrene resins(Marque Ricon104H, Sartomer)
B-2 butadiene styrene resins(Marque Ricon153H, Sartomer)
B-3 butadiene styrene resins(Marque Ricon100, Sartomer)
(C)Initiator:Cumyl peroxide(Shanghai Gaoqiao)
(D)Filler:Ball-shaped silicon micro powder(Trade name SFP-30M, Deuki Kagaku Kogyo Co., Ltd)
(E)Phosphonium flame retardant:Polyphenylene oxide phosphazene compound, SPB-100(Ben Otsuka Chemical Co., Ltd trade name).
The formula composition of 1. each embodiment of table and comparative example
Note:1st, in table all in terms of solid constituent weight portion.
2nd, comparative example 1*With the modified dicyclopentadiene phenolic benzoxazine colophony curing reaction of phenolic resin and pi-allyl.
3rd, comparative example 2**Also include that another kind of component is middle low-molecular-weight and the solid styrene base containing unsaturated double-bond Resin.
4th, comparative example 3***Also include pi-allyl phenol-formaldehyde resin modified, while which uses bromide fire retardant fire-retardant.
The physical data of 2. each embodiment of table and comparative example
The method of testing of above characteristic is as follows:
Glass transition temperature (Tg):According to differential scanning calorimetry(DSC), according to IPC-TM-6502.4.25 defineds DSC method be measured.
Peel strength(PS):" after thermal stress " experiment condition according to IPC-TM-6502.4.8 methods, tests crown cap The peel strength of layer.
Flammability:Determine according to UL94 vertical combustions.
Thermally stratified layer time T-288:It is measured according to IPC-TM-6502.4.24.1 methods.
Thermal coefficient of expansion Z axis CTE(TMA):It is measured according to IPC-TM-6502.4.24. methods.
Heat decomposition temperature Td:It is measured according to IPC-TM-6502.4.26 methods.
Water imbibition:It is measured according to IPC-TM-6502.6.2.1 methods.
Dielectric loss angle tangent, dielectric constant:According to the resonance method using stripline runs, according to IPC-TM-6502.5.5.9 Determine the dielectric loss angle tangent under 10GHz.
(10)Content of halogen is tested:It is measured according to IPC-TM-6502.3.41 methods.
Physical Property Analysis
Understand that copper-clad laminate made by embodiment 1-4 has excellent dielectric properties, higher from the physical data of table 2 Glass transition temperature.
Compared with comparative example 1, with the addition of hydrocarbon resin, the dielectric properties of system are obviously improved embodiment, and The heat resistance of system has obtained preferable holding with peel strength.Embodiment compared with comparative example 2, with the modified benzo of pi-allyl The addition of oxazine resin, the peel strength and heat resistance of system are obviously improved, while the dielectric properties of system obtain maximum The holding of limit.Compared with comparative example 3, the addition of pi-allyl modifying benzoxazine resin significantly improves system to embodiment Tg, while realizing halogen-free flameproof realizes environmental protection.
, compared with comparative example 4, in comparative example 4, the ratio of hydrocarbon resin is very big, and after curing reaction, system possesses more for embodiment Low dielectric loss and dielectric constant, but there is significantly decline in the Tg of system, cohesive, heat resistance and flammability.
The V-0 standards in flame retardancy test UL94 can be reached in JPCA Halogen standard claimed ranges, thermal coefficient of expansion is low, The stable height of thermal decomposition, water imbibition is low, and content of halogen is below 0.09%, reaches the requirement of environmental protection.
In sum, halogen-free resin composition of the present invention extraordinary benzoxazine colophony, polyphenylene oxide resin, hydrocarbon Resin, curing agent and other components are allowed to good cooperative characteristics, and outside fire-retardant using P elements, content of halogen exists Less than 0.09%, so as to reach environmental protection standard.And had using bonding sheet made by the halogen-free resin composition excellent electrical Energy, higher glass transition temperature, excellent heat resistance, preferable flame retardant effect and relatively low water imbibition.
Applicant states that the present invention illustrates the method detailed of the present invention, but the present invention not office by above-described embodiment It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implement.Art Technical staff it will be clearly understood that any improvement in the present invention, to the equivalence replacement and auxiliary element of each raw material of product of the present invention Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosure.

Claims (23)

1. a kind of halogen-free resin composition, it is characterised in that in terms of organic solid content weight portion, which includes:
(A) pi-allyl modifying benzoxazine resin, 72~80 weight portions;
(B) hydrocarbon resin, 20~30 weight portions;
(C) initiator, 0.01~3 weight portion.
2. halogen-free resin composition as claimed in claim 1, it is characterised in that the pi-allyl modifying benzoxazine resin choosing It is modified from pi-allyl modified bisphenol A type benzoxazine colophony, pi-allyl modified bisphenol F type benzoxazine colophonies, pi-allyl bicyclic The modified two amine type benzene of pentadiene phenolic benzoxazine colophony, pi-allyl modified bisphenol S types benzoxazine colophony or pi-allyl Evil In piperazine resin any one or at least two mixture.
3. halogen-free resin composition as claimed in claim 1, it is characterised in that the hydrocarbon resin exists for number-average molecular weight Less than 11000 are more than 60% by the contents of ethylene that hydrocarbon two kinds of elements are constituted, and are the hydrocarbon resin of liquid at room temperature.
4. halogen-free resin composition as claimed in claim 3, it is characterised in that the hydrocarbon resin is less than for number-average molecular weight 7000 and 1, the contents of ethylene of 2 additions is more than 70%, is the hydrocarbon resin of liquid at room temperature.
5. halogen-free resin composition as claimed in claim 1, it is characterised in that the initiator is selected from organic peroxide.
6. halogen-free resin composition as claimed in claim 5, it is characterised in that the initiator is selected from peroxidating diisopropyl In benzene, peroxidized t-butyl perbenzoate or 2,5- bis- (2- ethyihexanoylperoxies) -2,5- dimethylhexanes any one or At least two mixture.
7. halogen-free resin composition as claimed in claim 1, it is characterised in that the halogen-free resin composition also includes (D) Filler.
8. halogen-free resin composition as claimed in claim 7, it is characterised in that the content of described filler is 1~100 weight Part.
9. halogen-free resin composition as claimed in claim 7, it is characterised in that the content of described filler is 10~100 weight Part.
10. halogen-free resin composition as claimed in claim 7, it is characterised in that described filler is selected from silica, titanium dioxide In titanium, strontium titanates, barium titanate, boron nitride, aluminium nitride, carborundum or aluminum oxide any one or at least two mixing Thing.
11. halogen-free resin compositions as claimed in claim 7, it is characterised in that described filler selected from powdered quartz, Amorphous silica, preparing spherical SiO 2, titanium dioxide, strontium titanates, barium titanate, boron nitride, aluminium nitride, carborundum or oxidation In aluminium any one or at least two mixture.
12. halogen-free resin compositions as claimed in claim 7, it is characterised in that described filler is silica.
13. halogen-free resin compositions as claimed in claim 7, it is characterised in that angle value is 1~15 in the particle diameter of described filler μm。
14. halogen-free resin compositions as claimed in claim 13, it is characterised in that in the particle diameter of described filler angle value be 1~ 10μm。
15. halogen-free resin compositions as claimed in claim 14, it is characterised in that angle value is 1~5 in the particle diameter of described filler μm。
16. halogen-free resin compositions as claimed in claim 1, it is characterised in that the halogen-free resin composition also includes (E) Phosphonium flame retardant.
17. halogen-free resin compositions as claimed in claim 16, it is characterised in that the content of the phosphonium flame retardant be 0~ 80 weight portions, not including 0.
18. halogen-free resin compositions as claimed in claim 16, it is characterised in that the phosphonium flame retardant is three (2,6- bis- Aminomethyl phenyl) phosphine, the miscellaneous -10- phosphines phenanthrene -10- oxides of 10- (2,5- dihydroxy phenyls) -9,10- dihydro-9-oxies, 2,6- bis- (2, 6- 3,5-dimethylphenyls) phosphino- benzene, the miscellaneous -10- phosphines phenanthrene -10- oxides of 10- phenyl -9,10- dihydro-9-oxies or polyphenylene oxide phosphonitrile And its in derivative any one or at least two mixture.
19. halogen-free resin compositions as claimed in claim 1, it is characterised in that the halogen of the halogen-free resin composition contains Amount is below 0.09 weight %.
20. a kind of resin adhesive liquids, it is characterised in which is will be the halogen-free resin composition as described in one of claim 1-19 molten Solution or dispersion are obtained in a solvent.
21. a kind of prepregs, it is characterised in which includes reinforcing material and is attached on reinforcing material after impregnation is dried Halogen-free resin composition as described in one of claim 1-19.
22. a kind of laminates, it is characterised in that the laminate contains at least one prepreg as claimed in claim 21.
A kind of 23. copper-clad laminates, it is characterised in that the copper-clad laminate include at least one overlapping as right will Seek the prepreg described in 21 and cover the Copper Foil of the one or both sides of the prepreg after overlapping.
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