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CN103666355B - 一种导电银胶 - Google Patents

一种导电银胶 Download PDF

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Publication number
CN103666355B
CN103666355B CN201310605784.6A CN201310605784A CN103666355B CN 103666355 B CN103666355 B CN 103666355B CN 201310605784 A CN201310605784 A CN 201310605784A CN 103666355 B CN103666355 B CN 103666355B
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solidifying agent
silver glue
conductive
conductive silver
curing catalyst
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CN103666355A (zh
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苏建丽
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Zhuhai City Electronics Co. Ltd. die
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Qingdao Wenchuang Technology Co Ltd
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Abstract

一种导电银胶,包括基础树脂、固化剂、固化促进剂及导电材料,其特征在于:所述基础树脂为环氧树脂,所述固化剂为酸苷类固化剂,所述固化促进剂为异丁醇改性咪唑类化合物,所述导电材料为银粉。本发明的热固性导电银胶可以有效降低固化时间。

Description

一种导电银胶
技术领域
本发明涉及一种导电银胶,属电子材料领域。
技术背景
导电银胶在电子、信息、电镀等行业被广泛应用,主要用于物体间的导电粘接。现有技术中导电胶的固化时间长,一方面很难满足需要快速固化的场合,另一方面,固化时间长会导致生产周期长,不利于节约生产成本。
发明内容
本发明的目的是提供一种能够快速固化的热固性导电银胶。
为实现以上目的,本发明的一种导电银胶,包括基础树脂、固化剂、固化促进剂及导电材料,其特征在于:所述基础树脂为环氧树脂,所述固化剂为酸苷类固化剂,所述固化促进剂为异丁醇改性咪唑类化合物,所述导电材料为银粉。
所述银粉为3-5μm片状银粉,填充量为总质量的60%-70%。
所述酸苷类固化剂为偏苯三甲酸酐、顺丁烯二酸酐、偏苯三甲酸酐乙二醇、二苯基砜四羧酸二酐中的一种或几种,用量为总质量的10%-20%。
所述异丁醇改性咪唑类固化促进剂的用量为总质量的0.5%-1%。
本发明产生的有益效果为,本发明采用酸苷类固化剂,并配合使用醋酸改性的咪唑类化合物,可以有效降低固化时间,且其固化物具有优良的电气性能和机械性能。
实施例
实施例1:
一种导电银胶,其组分与重量份为:环氧树脂20份,偏苯三甲酸酐10份,顺丁烯二酸酐5份,异丁醇改性咪唑类化合物0.5份,3μm片状银粉60份。得到的导电银胶固化时间为4.5min,体积电阻为3.4×10-4欧姆厘米,粘结强度为11MPa。
实施例2:
一种导电银胶,其组分与重量份为:环氧树脂20份,顺丁烯二酸酐、7份,偏苯三甲酸酐乙二醇6份,异丁醇改性咪唑类化合物1份,4μm片状银粉65份。得到的导电银胶固化时间为4.5min,体积电阻为3.3×10-4欧姆厘米,粘结强度为12MPa。
实施例3:
一种导电银胶,其组分与重量份为:环氧树脂20份,偏苯三甲酸酐乙二醇6份,二苯基砜四羧酸二酐10份,异丁醇改性咪唑类化合物1份,5μm片状银粉60份。得到的导电银胶固化时间为4.8min,体积电阻为2.9×10-4欧姆厘米,粘结强度为11MPa。

Claims (4)

1.一种导电银胶,包括基础树脂、固化剂、固化促进剂及导电材料,其特征在于:所述基础树脂为环氧树脂,所述固化剂为酸苷类固化剂,所述固化促进剂为异丁醇改性咪唑类化合物,所述导电材料为银粉,所述酸苷类固化剂的用量为总质量的10%-20%,所述异丁醇改性咪唑类固化促进剂的用量为总质量的0.5%-1%。
2.如权利要求1所述的一种导电银胶,其特征在于:所述银粉为3-5μm片状银粉。
3.如权利要求1所述的一种导电银胶,其特征在于:所述银粉填充量为总质量的60%-70%。
4.如权利要求1所述的一种导电银胶,其特征在于:所述酸苷类固化剂为偏苯三甲酸酐、顺丁烯二酸酐、偏苯三甲酸酐乙二醇、二苯基砜四羧酸二酐中的一种或几种。
CN201310605784.6A 2013-11-26 2013-11-26 一种导电银胶 Active CN103666355B (zh)

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CN109096867A (zh) * 2018-06-25 2018-12-28 西安交通大学 一种用于高压绝缘介质表面的防静电涂料及制备方法
CN110894411B (zh) * 2019-12-16 2021-09-21 苏州瑞力博新材科技有限公司 一种用于叠瓦太阳能组件的环氧导电胶及制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000309768A (ja) * 1999-03-10 2000-11-07 Korea Advanced Inst Of Sci Technol プラスチック基板のフリップチップ接続用異方性伝導性接着剤の製造方法
CN102093833A (zh) * 2010-12-06 2011-06-15 常州合润新材料科技有限公司 一种原位合成制备银导电胶的方法
CN102649899A (zh) * 2011-06-01 2012-08-29 京东方科技集团股份有限公司 一种导电银胶及其制作方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000309768A (ja) * 1999-03-10 2000-11-07 Korea Advanced Inst Of Sci Technol プラスチック基板のフリップチップ接続用異方性伝導性接着剤の製造方法
CN102093833A (zh) * 2010-12-06 2011-06-15 常州合润新材料科技有限公司 一种原位合成制备银导电胶的方法
CN102649899A (zh) * 2011-06-01 2012-08-29 京东方科技集团股份有限公司 一种导电银胶及其制作方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《咪唑类环氧树脂固化剂研究进展》;刘全文等;《国外建材科技》;国外建材科技;20060331;第27卷(第3期);4-7 *

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Inventor after: Cao Chahua

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Address after: 519125 Guangdong Province, Zhuhai city Doumen District Baijiao town two new road No. 26 (building a floor area B)

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Address before: 266061 Shandong, Laoshan, Hongkong East Road, No. Pioneering Park, biological park, room 248, No. 239

Patentee before: Qingdao Wenchuang Science & Technology Co., Ltd.