CN108250676B - 一种含磷活性酯及其无卤组合物与覆铜箔基板 - Google Patents
一种含磷活性酯及其无卤组合物与覆铜箔基板 Download PDFInfo
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- CN108250676B CN108250676B CN201611240101.1A CN201611240101A CN108250676B CN 108250676 B CN108250676 B CN 108250676B CN 201611240101 A CN201611240101 A CN 201611240101A CN 108250676 B CN108250676 B CN 108250676B
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/5399—Phosphorus bound to nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
- C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
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Abstract
本发明提供了一种含磷活性酯及其无卤树脂组合物以及使用它的预浸料和层压板。该无卤树脂组合物包含:(A)热固性树脂;(B)含磷活性酯树脂。使用这种无卤树脂组合物制成的预浸料和层压板,具有低介电损耗因子且能实现无卤阻燃。
Description
技术领域
本发明属于覆铜板技术领域,具体涉及一种含磷活性酯及其无卤树脂组合物以及使用它的预浸料、层压板和印制电路板。
背景技术
随着电子元器件朝着小型轻量薄型化、高性能化、多功能化的方向发展,随之带来的是高频、高速的信号传输。这就要求电子材料的介电常数和介电损耗比较低,这些与材料的结构有关,而低介电常数、低介电损耗树脂在结构上一般具有:大的自由体积、低的可极化、低吸水率、低介电常数的结构存在等特点。此外,2006年7月1日,欧盟的两份环保指令《关于报废电气电子设备指令》和《关于在电气电子设备中限制使用某些有害物质指令》正式实施,无卤阻燃覆铜箔层压板的开发成为业界的热点,各覆铜箔层压板厂家都纷纷推出自己的无卤阻燃覆铜箔层压板。
在覆铜板的树脂基体中引入含磷化合物,成为覆铜板无卤阻燃的主要技术路线。目前覆铜板领域上广泛采用的磷系阻燃剂主要分为反应型与添加型两种。反应型主要为DOPO类化合物,以含磷环氧树脂、含磷酚醛树脂为主,磷含量在2~10%之间。然而,实际应用中发现,DOPO类化合物具有较大的吸水率和较差的介电性能及板材耐湿热性差。添加型主要为磷腈和膦酸酯类化合物,添加型阻燃剂的阻燃效率较低,需要添加更多的量才能达到阻燃要求。同时因其较低的熔点(一般低于150℃),在层压板加工过程中,易迁移至板材表面,影响板材性能。
发明内容
针对已有技术的问题,本发明的目的在于提供一种新型的含磷活性酯,并将其引入热固性树脂中,制备成无卤树脂组合物以及使用它的预浸料和层压板,利用其带有的反应性基团与特定的热固性树脂等反应不产生二次羟基,既能满足高速基板材料低介电损耗因子的要求又能满足无卤阻燃要求,使高频高速基板材料无卤化成为可能。
为了实现上述目的,本发明采用如下技术方案:
本发明的目的之一在于提供一种含磷活性酯,其包含如式(I)所示结构的组分:
其中,R为
R1为R3为
R2为
m,n表示平均聚合度,m、n为0~3.5之间的任意数,例如0.25、0.5、1、1.2、1.8、2.05、2.8、3或3.5,且m≠0,n≠0。
具体地,本发明所述含磷活性酯可以采用如下结构:
本发明的目的之二在于提供一种无卤树脂组合物,其包含如下组分:
(A)热固性树脂;
(B)含磷活性酯树脂;
所述含磷活性酯树脂具有如式(I)所示结构:
其中,R为
R1为R3为
R2为
m,n表示平均聚合度,m、n为0~3.5之间的任意数,例如0.25、0.5、1、1.2、1.8、2.05、2.8、3或3.5,且m≠0,n≠0。
所述含磷活性酯树脂可以采用如本发明目的之一所述的具体结构式。
本发明通过在热固性树脂中引入含磷结构活性酯,利用活性酯与环氧树脂等反应不产生二次羟基;既能满足无卤阻燃要求,又能改良体系电性能(降低介电损耗因子),使其实现高频高速基板材料的无卤化。
根据本发明,所述热固性树脂为环氧树脂、苯并噁嗪树脂、氰酸酯树脂、不饱和聚酯树脂、乙烯基树脂、双马来酰亚胺树脂、BT树脂、酚醛树脂、聚氨酯树脂、热固性聚酰亚胺、芳基乙炔树脂或呋喃树脂中的任意一种或者至少两种的混合物,其中典型但非限制性的混合物为:环氧树脂和苯并噁嗪树脂,氰酸酯树脂和不饱和聚酯树脂,乙烯基树脂和双马来酰亚胺树脂。
本发明中,所述环氧树脂为双酚A型环氧树脂、双酚F型环氧树脂、双环戊二烯环氧树脂、联苯环氧树脂或萘酚环氧树脂中的任意一种或者至少两种的混合物,其中典型但非限制性的混合物为:双酚A型环氧树脂和双酚F型环氧树脂,双酚F型环氧树和双环戊二烯环氧树脂,联苯环氧树脂和萘酚环氧树脂。
优选地,所述环氧树脂为联苯酚醛环氧树脂或/和DCPD酚醛环氧树脂,其兼具耐热性、介电性能及低的吸水性。
本发明中,所述环氧树脂的环氧当量与含磷活性酯树脂的酯基当量比为1:(0.9~1.1),例如1:0.9、1:0.95、1:1、1:1.05或1:1.1,以及上述数值之间的具体点值,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,优选1:(0.95~1.05)。
本发明中,所述无卤树脂组合物还可以包含组分(C)固化促进剂,其使树脂固化并加快树脂固化速度。
优选地,以组分(A)和组分(B)添加量之和为100重量份计,所述固化促进剂的添加量为0.05~1重量份,例如0.05重量份、0.08重量份、0.1重量份、0.15重量份、0.2重量份、0.25重量份、0.3重量份、0.35重量份、0.4重量份、0.45重量份、0.5重量份、0.55重量、0.6重量份、0.65重量份、0.7重量份、0.75重量份、0.8重量份、0.85重量份、0.9重量份或1重量份,以及上述数值之间的具体点值,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。
优选地,所述固化促进剂为4-二甲氨基吡啶、2-甲基咪唑、2-甲基4-乙基咪唑或2-苯基咪唑中的任意一种或者至少两种的混合物,其中典型但非限制性的混合物为:4-二甲氨基吡啶和2-甲基咪唑、2-甲基咪唑和2-甲基4-乙基咪唑、2-甲基4-乙基咪唑和2-苯基咪唑。
本发明中,所述无卤树脂组合物还可以包含组分(D)阻燃性化合物,该阻燃性化合物为无卤阻燃剂。
优选地,以组分(A)、组分(B)和组分(C)的添加量之和为100重量份计,所述阻燃性化合物的添加量为0~50重量份,例如1重量份、5重量份、10重量份、15重量份、25重量份、30重量份、35重量份、40重量份、45重量份或50重量份,以及上述数值之间的具体点值,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。
优选地,所述阻燃型化合物为含磷酚醛树脂、含磷双马来酰亚胺、次膦酸盐类、芳基磷酸酯型化合物、氮磷系膨胀型阻燃剂、磷腈型阻燃剂或有机聚合物阻燃剂中的任意一种或者至少两种的混合物,其中典型但非限制性的混合物为:含磷酚醛树脂和含磷双马来酰亚胺,含磷双马来酰亚胺和次膦酸盐类,氮磷系膨胀型阻燃剂和磷腈型阻燃剂。
优选地,所述无卤树脂组合物还包含组分(E)填料,所述填料为有机或/和无机填料,其主要用来调整组合物的一些物性效果,如降低热膨胀系数(CTE)、降低吸水率、提高热导率等。
优选地,以组分(A)、组分(B)、组分(C)和组分(D)的添加量之和为100重量份计,所述填料的添加量为0~100重量份,优选0~50重量份。所述填料的添加量例如为0.5重量份、1重量份、5重量份、10重量份、15重量份、20重量份、25重量份、30重量份、35重量份、40重量份、45重量份、50重量份、55重量份、60重量份、65重量份、70重量份、75重量份、80重量份、85重量份、90重量份、95重量份或100重量份,以及上述数值之间的具体点值,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。
优选地,所述无机填料为熔融二氧化硅、结晶型二氧化硅、球型二氧化硅、空心二氧化硅、氢氧化铝、氧化铝、滑石粉、氮化铝、氮化硼、碳化硅、硫酸钡、钛酸钡、钛酸锶、碳酸钙、硅酸钙、云母或玻璃纤维粉中的任意一种或者至少两种的混合物。所述混合物例如熔融二氧化硅和结晶型二氧化硅的混合物,球型二氧化硅和空心二氧化硅的混合物,氢氧化铝和氧化铝的混合物,滑石粉和氮化铝的混合物,氮化硼和碳化硅的混合物,硫酸钡和钛酸钡的混合物,钛酸锶和碳酸钙的混合物,硅酸钙、云母和玻璃纤维粉的混合物,熔融二氧化硅、结晶型二氧化硅和球型二氧化硅的混合物,空心二氧化硅、氢氧化铝和氧化铝的混合物,滑石粉、氮化铝和氮化硼的混合物,碳化硅、硫酸钡和钛酸钡的混合物,钛酸锶、碳酸钙、硅酸钙、云母和玻璃纤维粉的混合物。
优选地,所述有机填料选自聚四氟乙烯粉末、聚苯硫醚或聚醚砜粉末中的任意一种或者至少两种的混合物。所述混合物例如聚四氟乙烯粉末和聚苯硫醚的混合物,聚醚砜粉末和聚四氟乙烯粉末的混合物,聚苯硫醚和聚醚砜粉末的混合物,聚四氟乙烯粉末、聚苯硫醚和聚醚砜粉末的混合物。
优选地,所述填料为二氧化硅,填料的粒径中度值为1~15μm,优选填料的粒径中度值为1~10μm。
本发明所述的“包含”,意指其除所述组份外,还可以包含其他组份,这些其他组份赋予所述无卤树脂组合物不同的特性。除此之外,本发明所述的“包含”,还可以替换为封闭式的“为”或“由……组成”。
例如,所述无卤树脂组合物还可以含有各种添加剂,作为具体例,可以举出抗氧剂、热稳定剂、抗静电剂、紫外线吸收剂、颜料、着色剂或润滑剂等。这些各种添加剂可以单独使用,也可以两种或者两种以上混合使用。
本发明的无卤树脂组合物的制备方法为本领域的常规技术手段,其具体方法为:先将固形物放入,然后加入液态溶剂,搅拌至固形物完全溶解后,再加入液态树脂和促进剂,继续搅拌均匀即可。
作为本发明中的溶剂,没有特别的限定,作为具体例,可以列举出甲醇、乙醇、丁醇等醇类,乙基溶纤剂、丁基溶纤剂、乙二醇甲醚、卡必醇、丁基卡必醇等醚类,丙酮、丁酮、甲基乙基甲酮、环己酮等酮类;甲苯、二甲苯等芳香烃类;醋酸乙酯、乙氧基乙基乙酸酯等酯类;N,N-二甲基甲酰胺、N,N-二甲基乙酰胺等含氮类溶剂。以上溶剂可单独使用,也可两种或两种以上混合使用。优选丙酮、丁酮、甲基乙基甲酮、环己酮等酮类。所述溶剂的添加量由本领域技术人员根据自己经验来选择,使得树脂胶液达到适合使用的粘度即可。
本发明的目的之三在于提供一种预浸料,其包括增强材料及通过浸润干燥后附着其上的如上所述的无卤树脂组合物。
示例性的增强材料如无纺织物或/和其他织物,例如天然纤维、有机合成纤维以及无机纤维。
使用该胶液浸润增强材料如玻璃布等织物或有机织物,将浸润好的增强材料在155℃的烘箱中加热干燥5~10分钟即可得到预浸料。
本发明的目的之四在于提供一种层压板,其包括至少一张如上所述的预浸料。
本发明的层压板包括通过加热和加压、使一片或两片以上的预浸料粘合在一起而制成的层压板,以及粘合在层压板一面或两面以上的金属箔。所述的层压板是在热压机中固化制得,固化温度为150~250℃,固化压力为10~60kg/cm2。所述的金属箔为铜箔、镍箔、铝箔及SUS箔等,其材质不限。
本发明的目的之五在于提供一种印制电路板,其包括至少一张如上所述的预浸料。
与现有技术相比,本发明具有如下有益效果:
(1)通过在热固性树脂中引入新型含磷结构的活性酯,利用其与环氧树脂等反应不产生二次羟基,既能满足无卤阻燃要求,也能改良体系电性能(降低介电损耗因子),使高频高速基板材料无卤化成为可能;
(2)使用本发明中该无卤树脂组合物制作而成的预浸料、层压板和覆金属箔层压板,具有低介电损耗因子的优点,其Df值介于0.0077~0.0099之间,并实现无卤阻燃,达到UL94V-0。
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。
以下所述是本发明实施例的具体实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明实施例原理的前提下,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实施例的保护范围。
下面分多个实施例对本发明实施例进行进一步的说明。本发明实施例不限定于以下的具体实施例。在不改变权利要求的范围内,可以适当的进行变更实施。
合成例1
在安装有温度计、滴液漏斗、冷凝管、分馏管、搅拌器的烧瓶中加入160g(0.5mol)10-(2,5-二羟基苯基)-10-氢-9-氧杂-10-磷杂菲-10-氧化物(ODOPB)和360g含羟基苯氧基环三磷腈(其中二羟基含量大于60%)和816g甲基异丁基酮(MIBK),将体系内减压氮气置换,使其溶解。接着投入182.7g(0.9mol)对苯二甲酰氯,反应2h,体系内温度控制在60℃以下;然后,向体系中加入114g(1.2mol)苯酚,继续反应1h;通氮气条件下,缓慢滴加189g的20%氢氧化钠水溶液;在该条件下继续搅拌1小时。反应结束后,静止分液除去水层。在反应物溶解的MIBK相中投入水,搅拌混合,静止分液,除去水层。重复上述操作直至水层的pH达到7.0左右。然后通过倾析器脱去水分,接着减压蒸馏脱去MIBK,得到含磷活性酯树脂A1。
合成例2
在安装有温度计、滴液漏斗、冷凝管、分馏管、搅拌器的烧瓶中加入185g10-(2,5-二羟基萘基)-10-氢-9-氧杂-10-磷杂菲-10-氧化物和360g含羟基苯氧基环三磷腈(其中二羟基含量大于60%)和816g甲基异丁基酮(MIBK),将体系内减压氮气置换,使其溶解。接着投入182.7g(0.9mol)对苯二甲酰氯,反应2h,体系内温度控制在60℃以下;然后,向体系中加入114g(1.2mol)苯酚,继续反应1h;通氮气条件下,缓慢滴加189g的20%氢氧化钠水溶液;在该条件下继续搅拌1小时。反应结束后,静止分液除去水层。在反应物溶解的MIBK相中投入水,搅拌混合,静止分液,除去水层。重复上述操作直至水层的pH达到7.0左右。然后通过倾析器脱去水分,接着减压蒸馏脱去MIBK,得到含磷活性酯树脂A2。
合成例3
DOPO与苯基苯醌通过加成反应或的产物,在乙氧基乙醇中重结晶,获得10-(2,5-二羟基联苯基)-10-氢-9-氧杂-10-磷杂菲-10-氧化物。
在安装有温度计、滴液漏斗、冷凝管、分馏管、搅拌器的烧瓶中加入190g10-(2,5-二羟基联苯基)-10-氢-9-氧杂-10-磷杂菲-10-氧化物、360g含羟基的苯氧基环三磷腈(其中二羟基含量大于60%)和816g甲基异丁基酮(MIBK),将体系内减压氮气置换,使其溶解。接着,投入182.7g(0.9mol)对苯二甲酰氯,反应2h,体系内温度控制在60℃以下;然后,向体系中加入114g(1.2mol)苯酚,继续反应1h;通氮气条件下,缓慢滴加189g的20%氢氧化钠水溶液;在该条件下继续搅拌1小时。反应结束后,静止分液除去水层。在反应物溶解的MIBK相中投入水,搅拌混合,静止分液,除去水层。重复上述操作直至水层的PH达到7.0左右。然后通过倾析器脱去水分,接着减压蒸馏脱去MIBK,得到含磷活性酯树脂A3。
表中皆以固体组分重量份计,其中表1列举的材料具体如下:
627:双酚A型酚醛环氧树脂(美国Hexion商品名)
7200-3H:双环戊二烯型酚醛环氧树脂(日本DIC商品名)
NC-3000H:联苯型酚醛环氧树脂(日本化药商品名)
HP8000:双环戊二烯型活性酯(日本DIC商品名)
CE-01PS:双酚A型氰酸酯(扬州天启商品名)
填料:球形硅微粉DQ1040(江苏联瑞商品名)
阻燃剂:磷腈阻燃剂SPB100(大冢化学商品名)
A1:合成例1所述的含磷结构活性酯
A2:合成例2所述的含磷结构活性酯
A3:合成例3所述的含磷结构活性酯
DMAP:4-二甲氨基吡啶,促进剂(广荣化学商品名)
实施例1
取一容器,加入60重量份的627,加入等当量A1活性酯继续搅拌,加入适量的固化促进剂4-二甲氨基吡啶,继续搅拌均匀,最后用溶剂调整液体固含量至60%~80%而制成胶液。用玻璃纤维布浸渍上述胶液,即成胶液。用玻璃纤维布浸渍上述胶液,并控制至适当厚度,然后烘干除去溶剂得到半固化片。使用数张所制得的半固化片相互叠合,在其两侧分别压覆一张铜箔,放进热压机中固化制成所述的环氧树脂覆铜板层压板。物性数据如表1所示。
实施列2~10
制作工艺和实施例1相同,配方组成及其物性指标如表1~2所示。
对比例1~6
制作工艺与实施例1相同,配方组成及其物性指标如表2所示。
表1
物质 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 实施例6 | 实施例7 | 实施例8 |
627 | 60 | |||||||
7200-3H | 60 | |||||||
NC-3000H | 60 | 60 | 60 | 60 | 60 | 60 | ||
A1 | 1eq | 1eq | 1eq | 0.9eq | 1.1eq | 1eq | ||
A2 | 1eq | |||||||
A3 | 1eq | |||||||
CE-01PS | ||||||||
填料 | 20 | |||||||
DMAP | 0.05 | 0.06 | 0.07 | 0.08 | 0.08 | 0.08 | 0.07 | 0.07 |
Tg(DSC)/℃ | 180 | 177 | 167 | 168 | 165 | 168 | 168 | 170 |
Dk(10GHz) | 3.97 | 3.86 | 3.96 | 3.96 | 3.95 | 3.95 | 3.96 | 4.03 |
Df(10GHz) | 0.0099 | 0.0094 | 0.0090 | 0.0090 | 0.0089 | 0.0089 | 0.0089 | 0.0087 |
阻燃特性 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
表2
物质 | 实施例9 | 实施例10 | 对比例1 | 对比例2 | 对比例3 | 对比例4 | 对比例5 | 对比例6 |
NC-3000H | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
A1 | 20 | 20 | ||||||
A2 | ||||||||
A3 | ||||||||
HP8000 | 1eq | 1eq | 1eq | 20 | 20 | 20 | ||
CE-01PS | 20 | 20 | 20 | 20 | 20 | |||
填料 | 20 | 20 | 20 | |||||
阻燃剂 | 15 | 15 | 15 | 15 | ||||
DMAP | 0.05 | 0.05 | 0.07 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
T<sub>g</sub>(DSC)/℃ | 188 | 192 | 155 | 148 | 150 | 182 | 175 | 178 |
D<sub>k</sub>(10GHz) | 3.96 | 4.03 | 3.95 | 3.96 | 4.02 | 4.02 | 4.08 | 4.06 |
D<sub>f</sub>(10GHz) | 0.0079 | 0.0077 | 0.0095 | 0.0010 | 0.0098 | 0.0086 | 0.0089 | 0.0087 |
阻燃特性 | V-0 | V-0 | V-2 | V-0 | V-0 | V-2 | V-0 | V-0 |
以上特性的测试方法如下:
(1)玻璃化转变温度(Tg):根据差示扫描量热法(DSC),按照IPC-TM-6502.4.25所规定的DSC方法进行测定。
(2)介电常数和介电损耗因子:按照IPC-TM-650 2.5.5.9所规定的方法进行测试,测试频率为10GHz。
(3)阻燃性:按照UL 94标准方法进行。
物性分析:
由表1~2中实施例1~10可知,引入含磷活性酯固化剂后,含有P元素及N元素且空间自由体积较大的化学结构,其中的P元素与N元素通过协同作用满足UL94V-0级阻燃要求,而更大的自由体积使体系均具有较低的介电损耗因子并且能够满足UL94V-0级阻燃要求。
由表2的对比例1可知,引入双环戊二烯型活性固化剂后,体系具有较低的介电损耗因子,但不能满足UL94的阻燃要求,且对比例2中加入双环戊二烯型活性酯固化剂和磷腈阻燃剂后虽然可满足UL94阻燃要求,但介电损耗因子略有增加。而从实施例3~7可知,相对于对比例1和对比例2,由于结构中的P与N的协同阻燃效应使其在满足UL94V-0级阻燃要求的同时由于引入空间自由体积大的化学结构,使体系具有更低的介电损耗因子及具有更高的玻璃化转变温度。
由表1中实施例8可知,在引入二氧化硅填料后,体系具有更低的介电损耗因子,且满足UL94V-0级阻燃要求。
由表2中实施例9和实施例10可知,在引入氰酸酯和填料后,体系的介电损耗因子进一步降低,低至0.0077,且满足UL94V-0级阻燃要求。
由表2的对比例4可知,引入氰酸酯可以降低体系的介电损耗因子,但仍无法满足UL94V-0级阻燃要求;由对比例5和对比例6可知,引入阻燃剂可以改善阻燃性能,但介电损耗因子有所增加,即使通过添加填料后降低体系的介电损耗因子但仍高于实施例9和实施例10体系的介电损耗因子。
如上所述,与一般的层压板相比,本发明的无卤组合物的电路基板材料具有低介质损耗因子并且能够实现无卤阻燃。
以上所述,仅为本发明的较佳实施例,对于本领域的普通技术人员来说,可以根据本发明的技术方案和技术构思做出其他各种相应的改变和变形,而所有这些改变和变形都应属于本发明权利要求的范围。
申请人声明,本发明通过上述实施例来说明本发明的详细方法,但本发明并不局限于上述详细方法,即不意味着本发明必须依赖上述详细方法才能实施。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 (24)
1.一种含磷活性酯,其特征在于,其包含如式(I)所示结构的组分:
其中,R为
R1为R3为
R2为
m,n表示平均聚合度,m、n为0~3.5之间的任意数,且m≠0,n≠0。
2.一种无卤树脂组合物,其特征在于,所述无卤树脂组合物包含如下组分:
(A)热固性树脂;
(B)含磷活性酯树脂;
所述含磷活性酯树脂具有如式(I)所示结构:
其中,R为
R1为R3为
R2为
m,n表示平均聚合度,m、n为0~3.5之间的任意数,且m≠0,n≠0。
3.如权利要求2所述的无卤树脂组合物,其特征在于,所述热固性树脂为环氧树脂、苯并噁嗪树脂、氰酸酯树脂、不饱和聚酯树脂、乙烯基树脂、双马来酰亚胺树脂、BT树脂、酚醛树脂、聚氨酯树脂、热固性聚酰亚胺、芳基乙炔树脂或呋喃树脂中的任意一种或者至少两种的混合物。
4.如权利要求3所述的无卤树脂组合物,其特征在于,所述环氧树脂为双酚A型环氧树脂、双酚F型环氧树脂、双环戊二烯环氧树脂、联苯环氧树脂或萘酚环氧树脂中的任意一种或者至少两种的混合物。
5.如权利要求4所述的无卤树脂组合物,其特征在于,所述环氧树脂为联苯酚醛环氧树脂或/和双环戊二烯酚醛环氧树脂。
6.如权利要求3所述的无卤树脂组合物,其特征在于,所述环氧树脂的环氧当量与含磷活性酯树脂的酯基当量比为1:(0.9~1.1)。
7.如权利要求6所述的无卤树脂组合物,其特征在于,所述环氧树脂的环氧当量与含磷活性酯树脂的酯基当量比为1:(0.95~1.05)。
8.如权利要求3所述的无卤树脂组合物,其特征在于,所述无卤树脂组合物还包含组分(C)固化促进剂。
9.如权利要求8所述的无卤树脂组合物,其特征在于,以组分(A)和组分(B)添加量之和为100重量份计,所述固化促进剂的添加量为0.05~1重量份。
10.如权利要求8所述的无卤树脂组合物,其特征在于,所述固化促进剂为4-二甲氨基吡啶、2-甲基咪唑、2-甲基4-乙基咪唑或2-苯基咪唑中的任意一种或者至少两种的混合物。
11.如权利要求2-10之一所述的无卤树脂组合物,其特征在于,所述无卤树脂组合物还包含组分(D)阻燃性化合物。
12.如权利要求11所述的无卤树脂组合物,其特征在于,以组分(A)、组分(B)和组分(C)的添加量之和为100重量份计,所述阻燃性化合物的添加量为0~50重量份。
13.如权利要求11所述的无卤树脂组合物,其特征在于,所述阻燃性化合物为含磷酚醛树脂、含磷双马来酰亚胺、次膦酸盐类、芳基磷酸酯型化合物、氮磷系膨胀型阻燃剂、磷腈型阻燃剂或有机聚合物阻燃剂中的任意一种或者至少两种的混合物。
14.如权利要求2-10之一所述的无卤树脂组合物,其特征在于,所述无卤树脂组合物还包含组分(E)填料。
15.如权利要求14所述的无卤树脂组合物,其特征在于,所述填料为有机或/和无机填料。
16.如权利要求14所述的无卤树脂组合物,其特征在于,以组分(A)、组分(B)、组分(C)和组分(D)的添加量之和为100重量份计,所述填料的添加量为0~100重量份。
17.如权利要求16所述的无卤树脂组合物,其特征在于,所述填料的添加量为0~50重量份。
18.如权利要求15所述的无卤树脂组合物,其特征在于,所述无机填料为熔融二氧化硅、结晶型二氧化硅、球型二氧化硅、空心二氧化硅、氢氧化铝、氧化铝、滑石粉、氮化铝、氮化硼、碳化硅、硫酸钡、钛酸钡、钛酸锶、碳酸钙、硅酸钙、云母或玻璃纤维粉中的任意一种或者至少两种的混合物。
19.如权利要求15所述的无卤树脂组合物,其特征在于,所述有机填料为聚四氟乙烯粉末、聚苯硫醚或聚醚砜粉末中的任意一种或者至少两种的混合物。
20.如权利要求14所述的无卤树脂组合物,其特征在于,所述填料为二氧化硅,填料的粒径中度值为1~15μm。
21.如权利要求20所述的无卤树脂组合物,其特征在于,所述填料的粒径中度值为1~10μm。
22.一种预浸料,其包括增强材料及通过含浸干燥后附着其上的如权利要求2-10之一所述的无卤树脂组合物。
23.一种层压板,其包括至少一张如权利要求22所述的预浸料。
24.一种印制电路板,其包括至少一张如权利要求22所述的预浸料。
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CN113214461B (zh) * | 2020-01-15 | 2023-04-28 | 苏州生益科技有限公司 | 一种活性酯树脂及其树脂组合物 |
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CN105392817A (zh) * | 2013-06-10 | 2016-03-09 | Dic株式会社 | 含磷原子活性酯树脂、环氧树脂组合物、其固化物、预浸料、电路基板和积层薄膜 |
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