CN105949903A - 一种高效散热涂料及其应用方法 - Google Patents
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Abstract
本发明涉及一种高效散热涂料及其应用方法,该散热材料的组成及质量百分比含量为:超细石墨5%‑20%;红外辐射粉料1%‑10%;粘结剂20%‑50%;溶剂30%‑50%;分散剂0.1%‑3%,各组分配比之和为100%,其制备方法为:将上述称取的超细石墨、红外辐射粉料、粘结剂、分散剂和溶剂混合,将配料混合后,搅拌均匀,得到浆料;将浆料用喷涂或浸溃的方法均匀涂覆于电子设备的金属散热片表面,放置在室温条件下进行自然固化,保温2 h。该高效散热涂料具有接近石墨的导热系数,能有效降低电子设备的表面温度,提高电子设备运行的可靠性和使用寿命;全波段辐射率长期稳定在0.96以上;电子设备的金属散热片在80‑100℃的工作状态下,涂覆上述高效散热涂料后较涂覆前表面温度降低8‑10℃。
Description
技术领域
本发明涉及一种高效散热涂料的制备方法及其应用,属于散热涂料技术领域。
背景技术
目前,在电子设备工作过程中,提高电子设备散热的效率,是一个关注的焦点。电子设备的性能、可靠性和寿命与运行环境的温度成反比关系。电子设备工作过程中,所产生的大量热量,如果不能及时散发出去,将会影响电子设备的正常运转可靠性,还会影响缩短电设备的使用寿命。为此,在电子设备的表面一种制备高效散热涂料,已经成为迫切需要。
发明内容
本发明的目的是提供一种高效散热涂料的制备方法及其应用,该涂料散热效率高,成本低,使用方便,该涂料能有效降低电子设备金属散热片表面的散热温度,提高电子设备运行的可靠性和使用寿命。
为达到上述目的,本发明采用如下技术方案:本发明提出的一种高效散热涂料,用于制备电子设备金属表面散热,其特征在于,该散热材料的组成及质量百分比含量为:
超细石墨 5%-20%
红外辐射粉料 1%-10%
粘结剂 20%-50%
溶剂 30%-50%
分散剂 0.1%-3%
各组分配比之和为100%,所述的超细石墨的粒径为(0.1-1.0)μm;所述的红外辐射粉料的粒径为(0.1-2.0)μm ,
所述红外辐射粉料的组成及质量百分含量为:
MnO 20%-50%
SiO2 20%-40%
MgO 5%-15%%
K2O 1%-10%
CaO 1%-8%
ZnO 1%-6%
Al2O3 1%-5%%
Na2O 1%-3%
Fe2O3 0.1%-3% 。
所述粘结剂为环氧改性丙烯酸树脂,所述溶剂为二甲苯。
同时,为了达到上述目的,本发明还提供了一种高效散热涂料的应用方法,包括如下步骤:
(1).用去离子水对电子设备的金属散热片表面清洗、并干燥;
(2).按照材料的组成及质量百分比称取超细石墨为5%-20%、红外辐射粉料1%-10%、粘结剂为20%-50%、溶剂为30%-50%,分散剂为0.1%-3%,所述各组分配比之和为100%,将上述称取的超细石墨、红外辐射粉料、粘结剂、分散剂和溶剂混合,将配料混合后,搅拌均匀,得到浆料 ;
(3).对上述步骤(2)得到浆料用喷涂或浸溃的方法均匀涂覆于步骤(1)清洗干燥后的电子设备的金属散热片表面,厚度为1-15μm ;
(4).对上述步骤(3)涂覆后的电子设备的金属散热片放置在室温条件下进行自然固化,保温 2 h。
本发明与现有技术相比,有以下优点:
(1)本发明制备的高效散热涂料,配制的红外辐射粉料的全波段红外辐射率高达0.96,具有较高的红外辐射性能;采用超细石墨粉,具有较高的导热性能,有利于表面的均匀散热;使用本发明的高效散热涂料的电子设备的金属散热片与没有使用本发明的高效散热涂料电子设备的金属散热片相比,在同样的工作状态时,其平均温度低8-10℃,散热效果明显高于现有的专利技术。
具体实施方式
现将本发明的具体实施例叙述于后。
实施例1
一种高效散热涂料的应用方法,该方法包括如下步骤:
(1). 用去离子水对电子设备的金属散热片表面清洗并干燥;
(2).按照材料的组成及质量百分比称取超细石墨为10% 、红外辐射粉料为7% 、粘结剂为35% 、溶剂为47% 、分散剂为1% ,
所述各组分配比之和为100%,将上述称取的超细石墨、红外辐射粉料、粘结剂、分散剂
和溶剂混合,将配料混合后,搅拌均匀,得到浆料;
其中所述粘结剂为环氧改性丙烯酸树脂;所述溶剂为二甲苯;所述红外辐射粉料粒径为1.3μm,组成及质量百分含量为:
MnO 39.7%
SiO2 29.7%
MgO 9.3%
K2O 5.7%
CaO 4.7%
ZnO 4.2%
Al2O3 2.6%
Na2O 2.2%
Fe2O3 1.9%
(3). 将步骤(2)得到浆料用喷涂或浸溃的方法均匀涂覆于步骤(1)清洗干燥后的电子设备的金属散热片的表面,厚度10μm ;
(4). 将经步骤(3)涂覆后的电子设备的金属散热片放置在室温条件下进行自然固化,进行固化,保温2 h。
经检测,本发明的方法制备的高效散热涂料具有接近石墨的导热系数和较高的红外辐射率,全波段辐射率长期稳定在0.96以上;电子设备的金属散热片在80-100℃的工作状态下,涂覆上述高效散热涂料后较涂覆前表面温度降低8-10℃。
Claims (1)
1.一种高效散热涂料,用于制备电子设备的金属散热,其特征在于,该散热材料的组成及质量百分比含量为:
超细石墨 5%-20%
红外辐射粉料 1%-10%
粘结剂 20%-50%
溶剂 30%-50%
分散剂 0.1%-3%
各组分配比之和为100%,所述的超细石墨的粒径为(0.1-1.0)μm;所述的红外辐射粉料的粒径为(0.1-2.0)μm ,所述红外辐射粉料的组成及质量百分含量为:
MnO 20%-50%
SiO2 20%-40%
MgO 5%-15%%
K2O 1%-10%
CaO 1%-8%
ZnO 1%-6%
Al2O3 1%-5%%
Na2O 1%-3%
Fe2O3 0.1%-3% 。
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Cited By (6)
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CN107041105A (zh) * | 2017-03-23 | 2017-08-11 | 刘秋雷 | 一种仪器仪表的散热装置 |
CN107129712A (zh) * | 2017-02-24 | 2017-09-05 | 浙江中防环保科技有限公司 | 一种具有远红外辐射功能的纳米涂层配方 |
CN107384238A (zh) * | 2017-08-16 | 2017-11-24 | 刘秋雷 | 一种导热辐射散热膜 |
CN109467960A (zh) * | 2018-11-22 | 2019-03-15 | 深圳陶金材料科技有限公司 | 一种增强换热防腐涂层材料及其制备方法 |
CN112029396A (zh) * | 2020-08-11 | 2020-12-04 | 南通通城电力设备制造有限公司 | 一种电力设备用导热散热涂层 |
CN114824559A (zh) * | 2022-04-27 | 2022-07-29 | 上海兰钧新能源科技有限公司 | 锂电池及其制备工艺 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107129712A (zh) * | 2017-02-24 | 2017-09-05 | 浙江中防环保科技有限公司 | 一种具有远红外辐射功能的纳米涂层配方 |
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CN112029396A (zh) * | 2020-08-11 | 2020-12-04 | 南通通城电力设备制造有限公司 | 一种电力设备用导热散热涂层 |
CN114824559A (zh) * | 2022-04-27 | 2022-07-29 | 上海兰钧新能源科技有限公司 | 锂电池及其制备工艺 |
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