CN117447829A - 一种树脂组合物及其应用 - Google Patents
一种树脂组合物及其应用 Download PDFInfo
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- CN117447829A CN117447829A CN202210841575.0A CN202210841575A CN117447829A CN 117447829 A CN117447829 A CN 117447829A CN 202210841575 A CN202210841575 A CN 202210841575A CN 117447829 A CN117447829 A CN 117447829A
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- resin composition
- resin
- hydrogenated
- copper foil
- weight
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- 239000011342 resin composition Substances 0.000 title claims abstract description 66
- 229920001971 elastomer Polymers 0.000 claims abstract description 41
- 239000000806 elastomer Substances 0.000 claims abstract description 41
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011889 copper foil Substances 0.000 claims abstract description 20
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000003063 flame retardant Substances 0.000 claims description 30
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- -1 polyethylene-propylene Polymers 0.000 claims description 18
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 16
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 10
- 229910052794 bromium Inorganic materials 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 7
- 239000013032 Hydrocarbon resin Substances 0.000 claims description 6
- 239000005062 Polybutadiene Substances 0.000 claims description 6
- 229920006270 hydrocarbon resin Polymers 0.000 claims description 6
- 229920002857 polybutadiene Polymers 0.000 claims description 6
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 claims description 5
- 229920001955 polyphenylene ether Polymers 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 claims description 4
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
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- KTRQRAQRHBLCSQ-UHFFFAOYSA-N 1,2,4-tris(ethenyl)cyclohexane Chemical compound C=CC1CCC(C=C)C(C=C)C1 KTRQRAQRHBLCSQ-UHFFFAOYSA-N 0.000 claims description 3
- ZXLAFQNTMMFLSA-UHFFFAOYSA-N 1-ethenyl-4-[2-(4-ethenylphenyl)ethyl]benzene Chemical compound C1=CC(C=C)=CC=C1CCC1=CC=C(C=C)C=C1 ZXLAFQNTMMFLSA-UHFFFAOYSA-N 0.000 claims description 3
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- HXGDTGSAIMULJN-UHFFFAOYSA-N acetnaphthylene Natural products C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
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- 239000000758 substrate Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 26
- 150000003440 styrenes Chemical class 0.000 description 19
- DYIZJUDNMOIZQO-UHFFFAOYSA-N 4,5,6,7-tetrabromo-2-[2-(4,5,6,7-tetrabromo-1,3-dioxoisoindol-2-yl)ethyl]isoindole-1,3-dione Chemical compound O=C1C(C(=C(Br)C(Br)=C2Br)Br)=C2C(=O)N1CCN1C(=O)C2=C(Br)C(Br)=C(Br)C(Br)=C2C1=O DYIZJUDNMOIZQO-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
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- 125000001246 bromo group Chemical group Br* 0.000 description 6
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- 239000000126 substance Substances 0.000 description 6
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 101150065749 Churc1 gene Proteins 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 102100038239 Protein Churchill Human genes 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
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- MPJPKEMZYOAIRN-UHFFFAOYSA-N 1,3,5-tris(2-methylprop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound CC(=C)CN1C(=O)N(CC(C)=C)C(=O)N(CC(C)=C)C1=O MPJPKEMZYOAIRN-UHFFFAOYSA-N 0.000 description 1
- CMLFRMDBDNHMRA-UHFFFAOYSA-N 2h-1,2-benzoxazine Chemical compound C1=CC=C2C=CNOC2=C1 CMLFRMDBDNHMRA-UHFFFAOYSA-N 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 241000102542 Kara Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910052599 brucite Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000004643 cyanate ester Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
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- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H05K1/036—Multilayers with layers of different types
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H05K1/0313—Organic insulating material
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- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
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- B32B2260/02—Composition of the impregnated, bonded or embedded layer
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Abstract
本发明提供一种树脂组合物及其应用,所述树脂组合物按照重量百分比计,包括以下组分:热固性树脂10‑30%;助交联剂5‑20%;氢化苯乙烯系弹性体5‑20%;填料40‑80%;所述氢化苯乙烯系弹性体具有L‑M‑L的结构。使用本发明的树脂组合物制备得到的板材在X轴、Y轴以及Z轴均具有较低的热膨胀系数,具备优异的介电性能,且经高温处理后介电损耗因子变化幅度小;使用本发明的树脂组合物制备得到的预浸料,可以满足对热膨胀系数有更高要求的高频高速铜箔基板的性能要求。
Description
技术领域
本发明属于印制线路板技术领域,涉及一种树脂组合物及包含其的树脂膜、涂树脂铜箔、预浸料、覆金属箔层压板。
背景技术
对于服务器、路由器等网络相关设备用途中使用的印制线路板用基板材料,随着高密度化、高多层化,要求板材具有高耐热性、通孔可靠性,对板材的玻璃化转变温度(Tg)、XY-CTE以及Z-CTE提出了更高的要求,期望热膨胀系数(Z方向)为40ppm/℃以下、进一步为35ppm/℃以下,目前商用高速板材的XY-CTE一般在18-20ppm/℃,要达到更高可靠性要求,则希望XY-CTE达到13-15ppm/℃。对于低热膨胀性的表现而言,在树脂组合物中配合无机填充剂是有效的,但是为了确保在电路填充时的树脂流动性,无机填充剂的配合量受到限制。因此,期望在无机填充剂的配合量较少时也能有更低的CTE表现,作为高频高速特性,则要求在更高频段下具有优异介电性能。
现有的高速封装材料主要以马来酰亚胺、聚苯醚树脂体系为主。例如CN105348743A公开了一种无卤树脂组合物、半固化片及层压板,该无卤树脂组合物包含环氧树脂100重量份、活性酯固化剂50-100重量份、氰酸酯改性聚苯醚树脂10-50重量份、苯并噁嗪树脂10-25重量份、促进剂二甲氨基吡啶0.001-2重量份,其制成的半固化片、层压板,具有低介电常数、低介电损耗因数、高玻璃化转变温度、耐热性好、低吸水性、工艺操作简便等特点,但该材料的Dk、Df以及CTE仍然较高,难以应用到高速封装产品中。与此同时,为了在温度较高的环境下仍可使用电子设备,只降低印制电路板用铜箔基板的Dk、Df往往不够,还要求印制电路板即使在热环境下,仍然可以维持其低介电特性。
因此,在高频高速覆金属箔层压板领域,期望开发一种树脂组合物,使用其制备的覆金属箔层压板在X轴、Y轴以及Z轴均具有较低的热膨胀系数,具备优异的介电性能,且经高温处理后介电损耗因子变化幅度小。
发明内容
针对现有技术的不足,本发明的目的在于提供一种树脂组合物及其应用。使用本发明的树脂组合物制备的覆金属箔层压板在X轴、Y轴以及Z轴均具有较低的热膨胀系数,具备优异的介电性能,且经高温处理后介电损耗因子变化幅度小。
为达此目的,本发明采用以下技术方案:
第一方面,本发明提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
所述氢化苯乙烯系弹性体具有L-M-L的结构,
其中,嵌段M选自氢化的聚丁二烯、氢化的聚异戊二烯、氢化的聚乙烯-丁烯或氢化的聚乙烯-丙烯中的任意一种重复单元;
嵌段L具有式I所示的结构:
式I中,R1各自独立地选自碳原子数2-4的烯属不饱和基团(例如碳原子数2、碳原子数3或碳原子数4的烯属不饱和基团,比如-CH=CH2、-CH2CH=CH2、-CH=CHCH3、-CH2CH2CH=CH2、-CH2CH=CHCH3等)、碳原子数2-4的炔属不饱和基团(例如碳原子数2、碳原子数3或碳原子数4的炔属不饱和基团,比如-C≡CH、-CH2C≡CH、-C≡CCH3、-CH2CH2C≡CH、-CH2C≡CCH3等)、芳炔基(例如苯乙炔基、萘乙炔基)、马来酸酐基团或马来酰亚胺基中的任意一种,n各自独立地选自1-5的整数(例如1、2、3、4或5);R2各自独立地选自氢原子或碳原子数1-5(例如1、2、3、4或5)的烷基,k各自独立地选自0-4的整数(例如0、1、2、3或4);R3为氢原子或碳原子数1-5(例如1、2、3、4或5)的烷基。
在本发明中,氢化苯乙烯系弹性体中嵌段M经过氢化(hydrogenated)后,其基本不含残留的C=C双键,使得高温处理后介电损耗因子变化幅度小;嵌段L中具有可反应基团R1,其能与热固性聚苯醚、热固性碳氢树脂交联反应,形成均一的网络结构,从而提升树脂组合物的CTE性能。本发明使用的氢化苯乙烯系弹性体制备的树脂组合物具有优异的介电性能,且经高温处理后介电损耗因子变化幅度小;使用本发明的树脂组合物制备得到的板材在X轴、Y轴以及Z轴均具有较低的热膨胀系数;使用本发明的树脂组合物制备得到的预浸料,可以满足对热膨胀系数有更高要求的高频高速铜箔基板的性能要求。
氢化苯乙烯系弹性体中嵌段M选自氢化的聚丁二烯、氢化的聚异戊二烯、氢化的聚乙烯-丁烯或氢化的聚乙烯-丙烯中的任意一种重复单元,例如—丁二烯—、—异戊二烯—、—(乙烯-丁烯)—、—(乙烯-丙烯)—等嵌段。在氢化苯乙烯系弹性体中,柔性的长链结构的嵌段M,有益于提升树脂组合物的弯曲模量。需要说明的是,嵌段M经过氢化,是指嵌段M中的C=C双键的氢化率通常为90%以上,特别优选为95%以上,最优选为99%以上,乃至100%。即,高度氢化的苯乙烯系弹性体的嵌段M不具备交联性,其基本不含有残留的C=C双键,因此嵌段M不会因高温氧化而失去弹性或变脆,而且即便是经高温处理后仍可维持优异的介电性能和弯曲模量。
在本发明中,所述树脂组合物中,按照重量百分比计,热固性树脂的用量为10-30%,例如可以为10%、13%、15%、18%、20%、23%、25%、28%或30%等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。
在本发明中,所述树脂组合物中,按照重量百分比计,助交联剂的用量为5-20%,例如可以为5%、8%、10%、13%、15%、18%或20%等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。
在本发明中,所述树脂组合物中,按照重量百分比计,氢化苯乙烯系弹性体的用量为5-20%,例如可以为5%、8%、10%、13%、15%、18%或20%等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。
如果氢化苯乙烯系弹性体的用量小于5%,会导致树脂组合物以及覆金属箔层压板的CTE性能提升不明显;如果氢化苯乙烯系弹性体的用量大于20%,则弹性体有析出的倾向,而且树脂组合物的熔融流动性下降,最终影响覆金属箔层压板的综合性能和可靠性。
在本发明中,所述树脂组合物中,按照重量百分比计,填料的用量为40-80%,例如可以为40%、45%、50%、55%、60%、65%、70%、75%或80%等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。
优选地,所述氢化苯乙烯系弹性体的重均分子量为10-20万,例如10.5万、11万、12万、13万、14万、15万、16万、17万、18万、19万或19.5万等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。若氢化苯乙烯系弹性体的重均分子量小于10万,则树脂组合物CTE性能提升不明显,且树脂组合物的耐热性变低、介电性能有劣化的倾向;若氢化苯乙烯系弹性体的重均分子量大于20万,树脂组合物制备的胶液粘度过大,工艺加工性差,且压板后会产生很多内部缺陷,影响覆金属箔层压板的综合性能和可靠性。重均分子量可参照GB/T 21863-2008,以聚苯乙烯校准为基础通过凝胶渗透色谱法进行测定。
优选地,所述氢化苯乙烯系弹性体中嵌段L结构单元的质量百分含量为20~70%,例如可以为22%、24%、26%、28%、30%、32%、34%、36%、38%、40%、42%、44%、46%、48%、50%、52%、54%、56%、58%、60%、62%、64%、66%或68%等,以及上述点值间的具体点值,限于篇幅及出于简明的考虑,本发明不再穷尽列举所述范围包括的具体点值。在氢化苯乙烯系弹性体中,嵌段L中的苯乙烯结构,可以为树脂组合物带来刚性,有益于提升树脂组合物的CTE。
优选地,所述氢化苯乙烯系弹性体示例性地包括但不限于日本旭化成的D-411K或D-411K改MW。
优选地,所述热固性树脂包括热固性聚苯醚和/或热固性碳氢树脂。热固性聚苯醚示例性地包括但不限于日本三菱瓦斯化学的OPE-2ST 1200、沙特沙比克的MX9000。热固性碳氢树脂示例性地包括但不限于日本新日铁化学工业株式会社的ODV-XET、日本曹达的B-3000、美国克雷威利的R154或R100、日本JSR的RB810。
优选地,所述助交联剂包括在分子内具有碳-碳不饱和双键的助交联剂。
优选地,所述在分子内具有碳-碳不饱和双键的助交联剂包括多官能乙烯基化合物、烯丙基化合物、丙烯酸酯类化合物、三烯基异氰脲酸酯化合物、马来酰亚胺化合物、苊烯化合物或聚丁二烯中的任意一种或至少两种的组合。
优选地,所述助交联剂包括三烯丙基异氰脲酸酯、三烯丙基氰脲酸酯、三甲代烯丙基异氰酸酯、二乙烯基苯、1,2-二(对乙烯基苯基)乙烷或1,2,4-三乙烯基环己烷中的任意一种或至少两种的组合。助交联剂示例性地包括但不限于美国沙多玛的三烯丙基异氰脲酸酯TAIC或三烯丙基氰脲酸酯TAC、湖南方锐达的三甲代烯丙基异氰酸酯TMAIC、日本新日铁化学工业株式会社的二乙烯基苯DVB、江苏临川化工的1,2-二(对乙烯基苯基)乙烷BVPE、德国赢创的1,2,4-三乙烯基环己烷TVCH。
优选地,所述填料包括氢氧化铝、氮化硼、氧化铝、氮化硅、氮化铝、二氧化硅、滑石粉、云母、硫酸钡、立德粉、碳酸钙、硅灰石、高岭土、水镁石、硅藻土、膨润土和浮石粉中的任意一种或至少两种的组合。
优选地,所述填料包括二氧化硅。二氧化硅示例性地包括但不限于江苏辉迈的HM102YJ、日本雅都玛的SC2300-SVJ。
优选地,所述填料的粒径(D50)为0.5-2.0μm,例如0.6μm、0.8μm、1.0μm、1.3μm、1.5μm、1.8μm或1.9μm等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用,优选0.5-1.0μm。
优选地,所述树脂组合物还包括阻燃剂。
优选地,以树脂组合物的重量为100%计,所述阻燃剂的含量为5-15%,例如6%、7%、8%、9%、10%、11%、12%、13%或14%等,但并不仅限于所列举的数值,该数值范围内其他未列举的数值同样适用。
优选地,所述阻燃剂包括含溴阻燃剂和/或含磷阻燃剂。含溴阻燃剂示例性地包括但不限于美国雅宝的BT-93W、HP-8010、XP-7866,含磷阻燃剂示例性地包括但不限于广东聚航新材料研究院有限公司的JH-100。
优选地,所述含磷阻燃剂选自磷酸盐类阻燃剂、磷酸酯类阻燃剂和磷腈类阻燃剂中的一种或至少两种的组合。
作为本发明的优选技术方案,所述树脂组合物按照重量百分比计,包括以下组分:
第二方面,本发明提供一种树脂膜,所述树脂膜的材料包括如第一方面所述的树脂组合物。
优选地,所述树脂膜通过将所述树脂组合物涂覆于离型材料上经干燥和/或烘烤制得。
第三方面,本发明提供一种涂树脂铜箔,所述涂树脂铜箔包括铜箔,以及设置于所述铜箔一侧的树脂层,所述树脂层的材料包括如第一方面所述的树脂组合物。
优选地,所述涂树脂铜箔通过将所述树脂组合物涂覆于铜箔上经干燥和/或烘烤制得。
第四方面,本发明提供一种预浸料,所述预浸料包括增强材料,以及通过浸渍干燥后附着于所述增强材料上的如第一方面所述的树脂组合物。
第五方面,本发明提供一种覆金属箔层压板,所述覆金属箔层压板包括至少1张如第四方面所述的预浸料,以及设置于所述预浸料的一侧或两侧的金属箔。
优选地,所述金属箔为铜箔。
第六方面,本发明提供一种印制线路板,所述印制电路板包括至少1张如第四方面所述的预浸料或如第五方面所述的覆金属箔层压板。
与现有技术相比,本发明至少具有以下有益效果:
本发明使用氢化苯乙烯系弹性体制备的树脂组合物具有优异的介电性能(Dk:3.40-3.56,Df:0.0021-0.0026),而且高温处理后介电损耗因子变化幅度小(△Df:55-63%);使用本发明的树脂组合物制备得到的板材在X轴、Y轴以及Z轴均具有较低的热膨胀系数(Z-CTE:1.51-1.80%,X-CTE:10.2-12.3ppm/℃,Y-CTE:11.6-13.4ppm/℃);使用本发明的树脂组合物制备得到的预浸料,可以满足对热膨胀系数有更高要求的高频高速铜箔基板的性能要求。
具体实施方式
下面通过具体实施方式来进一步说明本发明的技术方案。本领域技术人员应该明了,所述实施例仅仅是帮助理解本发明,不应视为对本发明的具体限制。
本发明实施例及对比例中所涉及的实验原料如下:
(1)热固性聚苯醚
MX9000,甲基丙烯酸酯基改性的聚苯醚,沙特沙比克;
(2)热固性碳氢树脂
B-3000,聚丁二烯,日本曹达;
(3)助交联剂
TAIC,三烯丙基异氰脲酸酯,美国沙多玛;
TAC,三烯丙基氰脲酸酯,美国沙多玛;
(4)氢化苯乙烯系弹性体
D-411,重均分子量约11万,嵌段L中无反应基团,日本旭化成;
D-411K,重均分子量约11.2万,嵌段L中有反应基团,日本旭化成;
D-411K改MW,重均分子量约8.2万,嵌段L中有反应基团,日本旭化成;
M1943,重均分子量约5万,嵌段M中含有马来酸酐接枝,日本旭化成;
(5)未氢化苯乙烯系弹性体
D-1122,重均分子量约14万,嵌段L中无反应基团,美国科腾;
(6)阻燃剂
BT-93W,含溴阻燃剂,美国雅宝;
(7)二氧化硅
HM102YJ,粒径(D50)为1.0μm,江苏辉迈。
实施例1
在本实施例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性聚苯醚MX9000;助交联剂为三烯丙基异氰脲酸酯TAIC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
实施例2
在本实施例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性聚苯醚MX9000;助交联剂为三烯丙基异氰脲酸酯TAIC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
实施例3
在本实施例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性碳氢树脂B-3000;助交联剂为三烯丙基氰脲酸酯TAC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
实施例4
在本实施例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性聚苯醚MX9000;助交联剂为三烯丙基异氰脲酸酯TAIC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
实施例5
本实施例与实施例1不同之处仅在于,将氢化苯乙烯系弹性体D-411K替换为等重量的D-411K改MW。
对比例1
本对比例与实施例2不同之处仅在于,制备原料中不含氢化苯乙烯系弹性体,热固性树脂的重量百分比为24%,助交联剂的重量百分比为16%。
对比例2
本对比例与实施例2不同之处仅在于,将氢化苯乙烯系弹性体D-411K替换为等重量的D-411。
对比例3
本对比例与实施例2不同之处仅在于,将氢化苯乙烯系弹性体D-411K替换为等重量的D-1122。
对比例4
本对比例与实施例2不同之处仅在于,将氢化苯乙烯系弹性体D-411K替换为等重量的M1943。
对比例5
在本对比例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性聚苯醚MX9000;助交联剂为三烯丙基异氰脲酸酯TAIC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
对比例6
在本对比例中提供一种树脂组合物,所述树脂组合物按照重量百分比计,包括以下组分:
其中,热固性树脂为热固性聚苯醚MX9000;助交联剂为三烯丙基异氰脲酸酯TAIC;氢化苯乙烯系弹性体为D-411K;填料为二氧化硅HM102YJ;阻燃剂为含溴阻燃剂BT-93W。
应用例1
在本应用例中提供两种芯板厚度分别为0.20mm和1.60mm的覆金属箔层压板。
(1)将实施例1提供的树脂组合物与甲苯混合,于常温下搅拌均匀,形成固含量为65%的树脂胶液;
(2)以玻纤布(型号2116,中国台湾休贝尔)浸渍步骤(1)得到的树脂胶液,在130℃的浸渍机烘箱中加热干燥3min,使清漆状态的树脂组合物转变为半固化状态的树脂组合物,得到厚度为0.10mm的预浸料;
(3)将2张步骤(2)得到的预浸料叠合,在其上下两侧压覆厚度为18μm的电解铜箔,220℃、45kg/cm2固化2h,得到芯板厚度为0.20mm的覆金属箔层压板,将该覆金属箔层压板刻蚀后制样,用于测试Dk、Df、△Df;
(4)将16张步骤(2)得到的预浸料叠合,在其上下两侧压覆厚度为18μm的电解铜箔,220℃、45kg/cm2固化2h,得到芯板厚度为1.60mm的覆金属箔层压板,将该覆金属箔层压板刻蚀后制样,用于测试CTE、Tg、弯曲模量。
应用例2-5及对比应用例1-6
将实施例1中的树脂组合物分别替换为实施例2-5及对比例1-6中的树脂组合物。
对应用例及对比应用例提供的覆金属箔层压板进行性能测试,测试方法如下:
(1)玻璃化转变温度:根据IPC-TM-650 2.4.24.4,以动态黏度分析仪(DMA,Rheometric RSAIII)进行测试;
(2)介电常数Dk:根据IPC-TM-650 2.5.5.9测试在频率10GHz时的介电常数Dk;
(3)介电损耗因子Df:根据IPC-TM-650 2.5.5.9测试在频率10GHz时的损耗因子Df;
(4)ΔDf:取上述已测试介电损耗因子Df的样品,在180℃烘箱中有氧条件下烘烤24小时后,按照前述方法测试Df,计为Df2,样品未经过前述热处理条件下测试的Df计为Df1,则△Df为(Df2-Df1)/Df1×100%;
(5)热膨胀系数(X/Y-CTE):采用热机械分析仪(TMA仪),按照IPC-TM-6502.4.41所规定的CTE测试标准进行测试;
(6)Z-CTE:按照IPC-TM-650 2.4.24方法中“TMA”实验条件,测试纵向CTE;
(7)弯曲模量:取长为76.2mm、宽为25.4mm的样品,采用材料试验机进行测量,跨距为25.4mm,试验速度0.76mm/min。
性能测试结果如表1所示。
表1
由表1可以看出,本发明应用例1-5提供的覆金属箔层压板在X轴、Y轴及Z轴均具有较低的热膨胀系数(Z-CTE:1.51-1.80%,X-CTE:10.2-12.3ppm/℃,Y-CTE:11.6-13.4ppm/℃),具备优异的介电性能(Dk:3.40-3.56,Df:0.0021-0.0026),且经高温处理后介电损耗因子变化幅度小(△Df:55-63%)。
与应用例2相比,对比应用例1未使用氢化苯乙烯系弹性体,X/Y-CTE有所增加;对比应用例2的氢化苯乙烯系弹性体没有反应基团,所以对比应用例2覆金属箔层压板的CTE性能较差;对比应用例3使用未氢化苯乙烯系弹性体,其主链嵌段M中C=C双键在后期反应中难以完全反应掉,残留的C=C双键因高温氧化而导致弯曲模量降低,且介电损耗因子变化幅度骤增;对比应用例4使用的氢化苯乙烯系弹性体,反应基团在柔性的长链结构的嵌段M中,导致对比应用例4中覆金属箔层压板的CTE性能提升不明显。
对比应用例5中树脂组合物中的氢化苯乙烯系弹性体的用量过少,导致对比应用例5覆金属箔层压板的CTE性能提升不明显;对比应用例6中树脂组合物中的氢化苯乙烯系弹性体的用量过多,使得体系的胶液粘度过大,上胶产生内部缺陷,导致对比应用例6覆金属箔层压板的综合性能下降。
申请人声明,本发明通过上述实施例来说明本发明的树脂组合物及其应用,但本发明并不局限于上述实施例,即不意味着本发明必须依赖上述实施例才能实施。所属技术领域的技术人员应该明了,对本发明的任何改进,对本发明产品各原料的等效替换及辅助成分的添加、具体方式的选择等,均落在本发明的保护范围和公开范围之内。
Claims (10)
1.一种树脂组合物,其特征在于,所述树脂组合物按照重量百分比计,包括以下组分:
所述氢化苯乙烯系弹性体具有L-M-L的结构,
其中,嵌段M选自氢化的聚丁二烯、氢化的聚异戊二烯、氢化的聚乙烯-丁烯或氢化的聚乙烯-丙烯中的任意一种重复单元;
嵌段L具有式I所示的结构:
式I中,R1各自独立地选自碳原子数2-4的烯属不饱和基团、碳原子数2-4的炔属不饱和基团、芳炔基、马来酸酐基团或马来酰亚胺基中的任意一种,n各自独立地选自1-5的整数;R2各自独立地选自氢原子或碳原子数1-5的烷基,k各自独立地选自0-4的整数;R3为氢原子或碳原子数1-5的烷基。
2.根据权利要求1所述的树脂组合物,其特征在于,所述氢化苯乙烯系弹性体的重均分子量为10-20万;
优选地,所述热固性树脂包括热固性聚苯醚和/或热固性碳氢树脂。
3.根据权利要求1或2所述的树脂组合物,其特征在于,所述助交联剂包括在分子内具有碳-碳不饱和双键的助交联剂;
优选地,所述在分子内具有碳-碳不饱和双键的助交联剂包括多官能乙烯基化合物、烯丙基化合物、丙烯酸酯类化合物、三烯基异氰脲酸酯化合物、马来酰亚胺化合物、苊烯化合物或聚丁二烯中的任意一种或至少两种的组合;
优选地,所述助交联剂包括三烯丙基异氰脲酸酯、三烯丙基氰脲酸酯、三甲代烯丙基异氰酸酯、二乙烯基苯、1,2-二(对乙烯基苯基)乙烷或1,2,4-三乙烯基环己烷中的任意一种或至少两种的组合。
4.根据权利要求1-3中任一项所述的树脂组合物,其特征在于,所述填料包括二氧化硅;
优选地,所述树脂组合物还包括阻燃剂;
优选地,以树脂组合物的重量为100%计,所述阻燃剂的含量为5-15%;
优选地,所述阻燃剂包括含溴阻燃剂和/或含磷阻燃剂。
5.根据权利要求1-4任一项所述的树脂组合物,其特征在于,所述树脂组合物按照重量百分比计,包括以下组分:
6.一种树脂膜,其特征在于,所述树脂膜的材料包括如权利要求1-5任一项所述的树脂组合物;
优选地,所述树脂膜通过将所述树脂组合物涂覆于离型材料上经干燥和/或烘烤制得。
7.一种涂树脂铜箔,其特征在于,所述涂树脂铜箔包括铜箔,以及设置于所述铜箔一侧的树脂层,所述树脂层的材料包括如权利要求1-5任一项所述的树脂组合物;
优选地,所述涂树脂铜箔通过将所述树脂组合物涂覆于铜箔上经干燥和/或烘烤制得。
8.一种预浸料,其特征在于,所述预浸料包括增强材料,以及通过浸渍干燥后附着于所述增强材料上的如权利要求1-5任一项所述的树脂组合物。
9.一种覆金属箔层压板,其特征在于,所述覆金属箔层压板包括至少1张如权利要求8所述的预浸料,以及设置于所述预浸料的一侧或两侧的金属箔;
优选地,所述金属箔为铜箔。
10.一种印制线路板,其特征在于,所述印制电路板包括至少1张如权利要求8所述的预浸料或如权利要求9所述的覆金属箔层压板。
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