CN115366506A - 宽频吸波复合材料、宽频吸波贴片 - Google Patents
宽频吸波复合材料、宽频吸波贴片 Download PDFInfo
- Publication number
- CN115366506A CN115366506A CN202211037829.XA CN202211037829A CN115366506A CN 115366506 A CN115366506 A CN 115366506A CN 202211037829 A CN202211037829 A CN 202211037829A CN 115366506 A CN115366506 A CN 115366506A
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- Prior art keywords
- absorbing
- wave
- absorbent
- absorption layer
- rubber
- Prior art date
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Abstract
本发明公开了一种宽频吸波复合材料、宽频吸波贴片,所述宽频吸波复合材料包括依次层叠的介电层、第一吸收层、第二吸收层以及第三吸收层,其中所述第一吸收层中含有5wt%~80wt%的第一吸收剂,所述第一吸收层的厚度为0.5~2.5mm;所述第二吸收层中含有50wt%~88wt%的第二吸收剂,所述第二吸收层的厚度为0.1~1.5mm;所述第三吸收层中含有80wt%~92wt%的第三吸收剂,所述第三吸收层的厚度为0.1~1.5mm;所述介电层由介电材料制得,所述介电材料的介电常数为1.5~5.0,介电层的厚度为0.5~3mm;所述宽频吸波复合材料的厚度不大于6mm。本发明的宽频吸波复合材料的吸收频段可以拓宽到(2~40)GHz,极大提升了吸波性能。
Description
技术领域
本发明是关于吸波材料领域,特别是关于一种宽频吸波复合材料、宽频吸波贴片。
背景技术
吸波材料是指一类能够将入射电磁波能量转化为热能从而减弱或消除电磁干扰的功能材料。随着电磁波技术和5G通信技术的不断发展,高频GHz波段的吸波材料得到越来越广泛的应用。吸波材料在使用时要求具备“薄、轻、宽、强”的特点,即要求吸波材料厚度薄、重量轻、吸收频段宽和吸收能量强。在设计上吸波材料要求满足阻抗匹配特性和衰减特性。目前市面上应用于消费电子领域的吸波材料大都为单层吸波材料,吸收频段窄、绝缘性差、性能单一,越来越难以满足宽频使用要求。
发明内容
本发明的目的在于提供一种宽频吸波复合材料,其能够实现对(2~40)GHz频段电磁波的宽频吸收,同时其中的介电层既有利于吸波材料的阻抗匹配,同时提供了绝缘保护。
本发明的另一目的在于提供一种宽频吸波贴片。
为实现上述目的,本发明的实施例提供了一种宽频吸波复合材料,包括依次层叠的介电层、第一吸收层、第二吸收层以及第三吸收层,其中
所述第一吸收层中含有5wt%~80wt%的第一吸收剂,所述第一吸收层的厚度为0.5~2.5mm;
所述第二吸收层中含有50wt%~88wt%的第二吸收剂,第二吸收层的厚度为0.1~1.5mm;
所述第三吸收层中含有80wt%~92wt%的第三吸收剂,所述第三吸收层的厚度为0.1~1.5mm;
所述介电层由介电材料制得,所述介电材料的介电常数为1.5~5.0,介电层的厚度为0.5~3mm;
所述宽频吸波复合材料的厚度不大于6mm。
在本发明的一个或多个实施方式中,所述第一吸收剂、第二吸收剂以及第三吸收剂选自铁系吸波材料、碳系吸波材料中的至少一种。
在本发明的一个或多个实施方式中,所述铁系吸波材料包括羰基铁粉、铁硅铝合金粉、铁硅合金粉、铁镍合金粉、铁氧体粉;和/或,
所述碳系吸波材料包括炭黑以及碳纳米管。
在本发明的一个或多个实施方式中,所述第一吸收层、第二吸收层以及第三吸收层均含有偶联剂、第一硫化剂双二五以及橡胶材料。
在本发明的一个或多个实施方式中,所述偶联剂的质量为吸收剂的0.1wt%~3wt%。
在本发明的一个或多个实施方式中,所述偶联剂为硅烷偶联剂、钛酸酯偶联剂和铝酸酯偶联剂中的一种或几种。
在本发明的一个或多个实施方式中,所述橡胶材料为天然橡胶、硅橡胶、聚氨酯橡胶、三元乙丙橡胶、丁腈橡胶、氢化丁腈橡胶、丁基橡胶、丁苯橡胶、氯丁橡胶中的一种或几种。
在本发明的一个或多个实施方式中,所述介电材料,按质量份数计,包括以下原料组分:发泡材料100份,发泡剂0.5~8份,第二硫化剂0.5~5份。
在本发明的一个或多个实施方式中,所述发泡材料为硅橡胶发泡材料、聚氨酯发泡材料、环氧树脂发泡材料或酚醛树脂发泡材料中的任意一种。
本发明的实施例还提供了一种宽频吸波贴片,所述宽频吸波贴片由如上述的宽频吸波复合材料制得。
与现有技术相比,根据本发明实施方式的宽频吸波复合材料,通过控制第一吸收层、第二吸收层以及第三吸收层的配方和厚度,以及各个吸收层与的介电层之间相互协同作用,使宽频吸波复合材料的吸收频段拓宽到(2~40)GHz,极大提升了吸波性能。
附图说明
图1是根据本发明一实施方式的;
图2是本发明的实施例1制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图3是本发明的实施例2制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图4是本发明的实施例3制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图5是本发明的实施例4制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图6是本发明的实施例5制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图7是本发明的对比例1制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图8是本发明的对比例2制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图;
图9是本发明的对比例3制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
具体实施方式
下面结合附图,对本发明的具体实施方式进行详细描述,但应当理解本发明的保护范围并不受具体实施方式的限制。
除非另有其它明确表示,否则在整个说明书和权利要求书中,术语“包括”或其变换如“包含”或“包括有”等等将被理解为包括所陈述的元件或组成部分,而并未排除其它元件或其它组成部分。
如图1所示,根据本发明优选实施方式的一种宽频吸波贴片,该宽频吸波贴片由本发明的宽频吸波复合材料制得。宽频吸波复合材料包括依次层叠的介电层、第一吸收层、第二吸收层以及第三吸收层。
其中,第一吸收层中含有5wt%~80wt%的第一吸收剂,第一吸收层的厚度为0.5~2.5mm;第二吸收层中含有50wt%~88wt%的第二吸收剂,第二吸收层的厚度为0.1~1.5mm;第三吸收层中含有80wt%~92wt%的第三吸收剂,第三吸收层的厚度为0.1~1.5mm;介电层由介电材料制得,介电材料的介电常数为1.5~5.0,介电层的厚度为0.5~3mm;宽频吸波复合材料的厚度不大于6mm。
需要说明的是,宽频吸波复合材料通过控制第一吸收层、第二吸收层以及第三吸收层的配方和厚度,以及各个吸收层与的介电层之间相互协同作用,使宽频吸波复合材料的吸收频段拓宽到(2~40)GHz,极大提升了吸波性能。
具体的,第一吸收剂、第二吸收剂以及第三吸收剂选自铁系吸波材料、碳系吸波材料中的至少一种。其中,铁系吸波材料包括羰基铁粉、铁硅铝合金粉、铁硅合金粉、铁镍合金粉、铁氧体粉;碳系吸波材料包括炭黑以及碳纳米管。
一具体实施方式中,第一吸收层、第二吸收层以及第三吸收层均含有偶联剂、第一硫化剂双二五以及橡胶材料。
具体的,偶联剂的质量为吸收剂的0.1wt%~3wt%。偶联剂可以为硅烷偶联剂、钛酸酯偶联剂和铝酸酯偶联剂中的一种或几种。
具体的,橡胶材料为天然橡胶、硅橡胶、聚氨酯橡胶、三元乙丙橡胶、丁腈橡胶、氢化丁腈橡胶、丁基橡胶、丁苯橡胶、氯丁橡胶中的一种或几种。
一具体实施方式中,介电材料,按质量份数计,包括以下原料组分:发泡材料100份,发泡剂偶氮二甲酰胺0.5~8份,第二硫化剂0.5~5份。
具体的,发泡材料可以为橡胶或树脂基体。优选的,发泡材料可以为硅橡胶发泡材料、聚氨酯发泡材料、环氧树脂发泡材料或酚醛树脂发泡材料中的任意一种。
一具体实施方式中,本发明的宽频吸波复合材料的制备方法可以包括以下步骤:
S1、将偶联剂分别与第一吸收剂、第二吸收剂以及第三吸收剂混合,以使第一吸收剂、第二吸收剂以及第三吸收剂均被偶联剂预处理。
S2、预处理过的第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂双二五以及橡胶混合处理后,得到第一吸波胶料、第二吸波胶料以及第三吸波胶料。
S3、将第一吸波胶料、第二吸波胶料以及第三吸波胶料按顺序层叠,并进行热压处理,得到半成品。
S4、获得介电层,将介电层与半成品中含有第一吸波胶料的一面相粘结,获得本发明的宽频吸波复合材料。
其中,在步骤S3中,半成品的结构可以认为是顺次层叠的第一吸收层、第二吸收层以及第三吸收层。
在步骤S4中,获得介电层的步骤可以包括:
将发泡剂、第二硫化剂以及发泡材料混合,并制成片状的预制品。
将预制品进行发泡处理,记得到介电层。
其中,发泡温度为140℃~180℃,发泡时间为0.2h~2h。
需要说明的是,部分热压工艺中,在热压成吸收层的过程中,第一吸波胶料、第二吸波胶料以及第三吸波胶料的厚度分别与对应的第一吸收层、第二吸收层以及第三吸收层的厚度相同。其他的热压工艺中,在热压成吸收层的过程中,第一吸波胶料、第二吸波胶料以及第三吸波胶料的厚度分别与对应的第一吸收层、第二吸收层以及第三吸收层的厚度不同,此时可以根据经验调整第一吸波胶料、第二吸波胶料以及第三吸波胶料的厚度热压完成后,对应得到的第一吸收层、第二吸收层以及第三吸收层的厚度达到所需的厚度。
下面将结合具体的实施例详细介绍本发明的宽频吸波复合材料。
实施例1
(1)半成品的制备。
将硅烷偶联剂9116分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的1.5%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到硅橡胶(110-2)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠防止入模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的半成品。
(2)介电层的制备。
采用开炼机将7g发泡剂偶氮二甲酰胺和2g第二硫化剂无味DCP以及100g的硅橡胶(110-2)中混合均匀,然后预压成薄片。将薄片放入烘箱中发泡和硫化成型,得到介电层。介电层介电常数为2.2,厚度为2.8mm。
(3)半成品与介电层的复合。
采用胶黏剂将半成品与介电层粘接固化,即可得到本发明的宽频吸波复合材料。
图2是此实施例制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
实施例2
(1)半成品的制备。
将硅烷偶联剂KH151分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的1.0%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到硅橡胶(110-2)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠放入模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的半成品。
(2)介电层的制备。
采用开炼机将6g发泡剂偶氮二甲酰胺和3g第二硫化剂无味DCP以及100g的硅橡胶(110-2)中混合均匀,然后预压成薄片。将薄片放入烘箱中发泡和硫化成型,得到介电层。介电层介电常数为2.4,厚度为2.9mm。
(3)半成品与介电层的复合。
采用胶黏剂将半成品与介电层粘接固化,即可得到本发明的宽频吸波复合材料。
图3是此实施例制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
实施例3
(1)半成品的制备。
将硅烷偶联剂KH550分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的0.5%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到聚氨酯橡胶(HA-1)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠放置模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的半成品。
(2)介电层的制备。
采用开炼机将7g发泡剂偶氮二甲酰胺和3g第二硫化剂无味DCP以及100份的聚氨酯橡胶(HA-1)中混合均匀,然后预压成薄片。将薄片放入烘箱中发泡和硫化成型,得到介电层。介电层介电常数为2.7,厚度为3.0mm。
(3)半成品与介电层的复合。
采用胶黏剂将半成品与介电层粘接固化,即可得到本发明的宽频吸波复合材料。
图4是此实施例制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
实施例4
(1)半成品的制备。
将钛酸酯偶联剂101分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的1.0%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到丁腈橡胶(HTD-28)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠放入模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的半成品。
(2)介电层的制备。
采用开炼机将4g发泡剂偶氮二甲酰胺和3g第二硫化剂无味DCP无味DCP以及100g的聚氨酯橡胶(HA-1)混合均匀,然后预压成薄片。将薄片放入烘箱中发泡和硫化成型,得到介电层。介电层介电常数为3.0,厚度为2.9mm。
(3)半成品与介电层的复合。
采用胶黏剂将半成品与介电层粘接固化,即可得到本发明的宽频吸波复合材料。
图5是此实施例制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
实施例5
(1)半成品的制备。
将铝酸酯偶联剂DL-411分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的2%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到丁苯橡胶(1502)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠放置到模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的半成品。
(2)介电层的制备。
采用开炼机将3g发泡剂偶氮二甲酰胺和2g第二硫化剂无味DCP以及100g的聚氨酯橡胶(HA-1)混合均匀,然后预压成薄片。将薄片放入烘箱中发泡和硫化成型,得到介电层。介电层介电常数为2.8,厚度为3.0mm。
(3)半成品与介电层的复合。
采用胶黏剂将半成品与介电层粘接固化,即可得到本发明的宽频吸波复合材料。
图6是此实施例制备的宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
对比例1
(1)吸波层的制备。步骤一,将硅烷偶联剂9116加入到吸收剂粉体中,然后采用搅拌机将吸收剂粉体表面包覆处理,偶联剂用量为吸收剂质量分数的1.5%;步骤二,采用开炼机将预处理吸收剂粉体和第一硫化剂混入到硅橡胶(110-2)中,硫化剂用量为橡胶质量分数的1.5%,采用FeNi50吸收剂,制备吸收剂含量为84%的吸波胶料;步骤三,将吸波胶料预压成3.0mm吸波薄片,将材料投入模具中,热压成型。
具体配方如下:
(2)介电层的制备。步骤一,采用开炼机将发泡剂偶氮二甲酰胺和第二硫化剂无味DCP加入硅橡胶(110-2)中,发泡剂偶氮二甲酰胺的用量为7g,硫化剂的用量为2.5g,硅橡胶(110-2)的用量为100g;步骤二,将胶料预压成薄片;步骤三,将薄片放入烘箱中发泡和硫化成型。介电层介电常数为2.2,厚度为2.8mm。
(3)吸波层与介电层的复合。采用胶黏剂将吸波层与介电层粘接固化,然后将材料四周毛边切除,即可制备多层宽频吸波材料。
图7是此对比例制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
对比例2
(1)吸波层的制备。
将硅烷偶联剂9116分别加入至第一吸收剂、第二吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的1.5%。
采用开炼机将预处理第一吸收剂、第二吸收剂分别与第一硫化剂混入到硅橡胶(110-2)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料分别预压成吸波薄片,然后按顺序依次层叠放置到模具中,热压成型,形成具有的第一吸收层、第二吸收层的吸波层。
(2)介电层的制备。步骤一,采用开炼机将发泡剂偶氮二甲酰胺和第二硫化剂无味DCP加入硅橡胶(110-2)中,发泡剂偶氮二甲酰胺的用量为7g,硫化剂的用量为2.5g,硅橡胶(110-2)的用量为100g;步骤二,将胶料预压成薄片;步骤三,将薄片放入烘箱中发泡和硫化成型。介电层介电常数为2.2,厚度为2.8mm。
(3)吸波层与介电层的复合。采用胶黏剂将吸波层与介电层粘接固化,然后将材料四周毛边切除,即可制备多层宽频吸波材料。
图8是此实施例制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
对比例3
(1)吸波层的制备。
将硅烷偶联剂9116分别加入至第一吸收剂、第二吸收剂以及第三吸收剂中,然后采用搅拌机将第一吸收剂、第二吸收剂以及第三吸收剂表面包覆预处理,偶联剂用量为吸收剂质量分数的1.5%。
采用开炼机将预处理第一吸收剂、第二吸收剂以及第三吸收剂分别与第一硫化剂混入到硅橡胶(110-2)中,分别得到第一吸收胶料、第二吸收胶料以及第三吸收胶料。
具体配方如下:
将第一吸收胶料、第二吸收胶料以及第三吸收胶料分别预压成吸波薄片,然后按顺序依次层叠防止入模具中,热压成型,形成具有的第一吸收层、第二吸收层以及第三吸收层的吸波层。
(2)将材料四周毛边切除,即可制备多层宽频吸波材料。
图9是此对比例制备的多层宽频吸波复合材料在(2~40)GHz频段的雷达反射率曲线图。
通过图2~6中的数据可以看出本发明制得的宽频吸波材料在(2~40)GHz全频段反射率均优于-10dB。
通过图2分别与图7和图8的数据,即实施例1与对比例1和2的吸波材料在(2~40)GHz频段的雷达反射率曲线图的数据可以看出,即使对比例1和2中的所有吸波层的总厚度与实施例1中的所有吸波层的总厚度相同,且均有介电层,但对比例1和2的吸波材料的反射率性能均低于实施例1的吸波材料的反射率性能。
通过图2与图9数据,即实施例1与对比例3的吸波材料在(2~40)GHz频段的雷达反射率曲线图的数据可以看出,即使对比例3中的三层吸波层与实施例1中三层吸波层完全相同,但对比例3的吸波材料的反射率性能低于实施例1的吸波材料的反射率性能。由此可以得知介电层配合三层吸波层可视达到提升吸波材料的反射率性能的作用。
因此,本发明的宽频吸波复合材料、宽频吸波贴片具有良好的吸波性能的原因是因为通过介电层、第一吸收层、第二吸收层以及第三吸收层的共同作用,具体的可以认为是对介电层、第一吸收层、第二吸收层以及第三吸收层的厚度、配方以及工艺进行调整,从综合得使本发明的宽频吸波复合材料、宽频吸波贴片具有良好的吸波性能。
综上所述,本发明的宽频吸波复合材料、宽频吸波贴片具备以下有益效果:
1、通过控制每层材料的配方和厚度,使吸波材料的吸收频段拓宽到(2~40)GHz,极大提升了吸波性能。
2、通过在三层吸波层上设置介电层,通过配方和工艺控制介电层的介电常数,进一步优化了材料的吸波性能。
3、制备方法简单,原材料易得,适合大规模生产。
前述对本发明的具体示例性实施方案的描述是为了说明和例证的目的。这些描述并非想将本发明限定为所公开的精确形式,并且很显然,根据上述教导,可以进行很多改变和变化。对示例性实施例进行选择和描述的目的在于解释本发明的特定原理及其实际应用,从而使得本领域的技术人员能够实现并利用本发明的各种不同的示例性实施方案以及各种不同的选择和改变。本发明的范围意在由权利要求书及其等同形式所限定。
Claims (10)
1.一种宽频吸波复合材料,其特征在于,包括依次层叠的介电层、第一吸收层、第二吸收层以及第三吸收层,其中
所述第一吸收层中含有5wt%~80wt%的第一吸收剂,所述第一吸收层的厚度为0.5~2.5mm;
所述第二吸收层中含有50wt%~88wt%的第二吸收剂,所述第二吸收层的厚度为0.1~1.5mm;
所述第三吸收层中含有80wt%~92wt%的第三吸收剂,所述第三吸收层的厚度为0.1~1.5mm;
所述介电层由介电材料制得,所述介电材料的介电常数为1.5~5.0,介电层的厚度为0.5~3mm;
所述宽频吸波复合材料的厚度不大于6mm。
2.如权利要求1所述的宽频吸波复合材料,其特征在于,所述第一吸收剂、第二吸收剂以及第三吸收剂选自铁系吸波材料、碳系吸波材料中的至少一种。
3.如权利要求2所述的宽频吸波复合材料,其特征在于,所述铁系吸波材料包括羰基铁粉、铁硅铝合金粉、铁硅合金粉、铁镍合金粉、铁氧体粉;和/或,
所述碳系吸波材料包括炭黑以及碳纳米管。
4.如权利要求1所述的宽频吸波复合材料,其特征在于,所述第一吸收层、第二吸收层以及第三吸收层均含有偶联剂、第一硫化剂双二五以及橡胶材料。
5.如权利要求4所述的宽频吸波复合材料,其特征在于,所述偶联剂的质量为吸收剂的0.1wt%~3wt%。
6.如权利要求5所述的宽频吸波复合材料,其特征在于,所述偶联剂为硅烷偶联剂、钛酸酯偶联剂和铝酸酯偶联剂中的一种或几种。
7.如权利要求4所述的宽频吸波复合材料,其特征在于,所述橡胶材料为天然橡胶、硅橡胶、聚氨酯橡胶、三元乙丙橡胶、丁腈橡胶、氢化丁腈橡胶、丁基橡胶、丁苯橡胶、氯丁橡胶中的一种或几种。
8.如权利要求1所述的宽频吸波复合材料,其特征在于,所述介电材料,按质量份数计,包括以下原料组分:发泡材料100份,发泡剂0.5~8份,第二硫化剂0.5~5份。
9.如权利要求8所述的宽频吸波复合材料,其特征在于,所述发泡材料为硅橡胶发泡材料、聚氨酯发泡材料、环氧树脂发泡材料或酚醛树脂发泡材料中的任意一种。
10.一种宽频吸波贴片,其特征在于,所述宽频吸波贴片由如权利要求1~9任一项所述的宽频吸波复合材料制得。
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CN116200120A (zh) * | 2023-03-14 | 2023-06-02 | 东莞市雷兹盾电子材料有限公司 | 一种复合型吸波胶料及其制备方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101700706A (zh) * | 2009-11-18 | 2010-05-05 | 中南大学 | 一种轻质宽频泡沫夹层结构吸波材料及其制备方法 |
CN204929547U (zh) * | 2015-09-24 | 2015-12-30 | 中国工程物理研究院核物理与化学研究所 | 一种便携式敷贴型吸波片 |
CN206807974U (zh) * | 2017-04-25 | 2017-12-26 | 大连东信微波技术有限公司 | 多层结构吸波橡胶材料 |
CN107618237A (zh) * | 2016-07-14 | 2018-01-23 | 洛阳尖端技术研究院 | 一种橡胶基吸波材料及其制备方法 |
CN108039235A (zh) * | 2017-12-27 | 2018-05-15 | 潘远新 | 一种吸波扁平数据线 |
CN110446407A (zh) * | 2019-07-15 | 2019-11-12 | 川泽科技(武汉)有限公司 | 一种高性能吸波材料 |
CN110920158A (zh) * | 2019-11-12 | 2020-03-27 | 航天科工武汉磁电有限责任公司 | 一种树脂柱增强宽频吸波/承载复合材料及其制备方法 |
CN111186190A (zh) * | 2018-11-15 | 2020-05-22 | 航天特种材料及工艺技术研究所 | 双层蒙皮吸波泡沫夹心结构及其制备方法 |
CN111186186A (zh) * | 2018-11-15 | 2020-05-22 | 航天特种材料及工艺技术研究所 | 双层蒙皮吸波复合材料夹心结构及其制备方法 |
CN111286097A (zh) * | 2018-12-06 | 2020-06-16 | 洛阳尖端技术研究院 | 吸波材料及其制备方法 |
CN215397371U (zh) * | 2021-04-30 | 2022-01-04 | 深圳光启高端装备技术研发有限公司 | 抗爆吸波结构和舰船 |
-
2022
- 2022-08-26 CN CN202211037829.XA patent/CN115366506A/zh active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101700706A (zh) * | 2009-11-18 | 2010-05-05 | 中南大学 | 一种轻质宽频泡沫夹层结构吸波材料及其制备方法 |
CN204929547U (zh) * | 2015-09-24 | 2015-12-30 | 中国工程物理研究院核物理与化学研究所 | 一种便携式敷贴型吸波片 |
CN107618237A (zh) * | 2016-07-14 | 2018-01-23 | 洛阳尖端技术研究院 | 一种橡胶基吸波材料及其制备方法 |
CN206807974U (zh) * | 2017-04-25 | 2017-12-26 | 大连东信微波技术有限公司 | 多层结构吸波橡胶材料 |
CN108039235A (zh) * | 2017-12-27 | 2018-05-15 | 潘远新 | 一种吸波扁平数据线 |
CN111186190A (zh) * | 2018-11-15 | 2020-05-22 | 航天特种材料及工艺技术研究所 | 双层蒙皮吸波泡沫夹心结构及其制备方法 |
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CN111286097A (zh) * | 2018-12-06 | 2020-06-16 | 洛阳尖端技术研究院 | 吸波材料及其制备方法 |
CN110446407A (zh) * | 2019-07-15 | 2019-11-12 | 川泽科技(武汉)有限公司 | 一种高性能吸波材料 |
CN110920158A (zh) * | 2019-11-12 | 2020-03-27 | 航天科工武汉磁电有限责任公司 | 一种树脂柱增强宽频吸波/承载复合材料及其制备方法 |
CN215397371U (zh) * | 2021-04-30 | 2022-01-04 | 深圳光启高端装备技术研发有限公司 | 抗爆吸波结构和舰船 |
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CN116200120A (zh) * | 2023-03-14 | 2023-06-02 | 东莞市雷兹盾电子材料有限公司 | 一种复合型吸波胶料及其制备方法 |
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