CN106519958A - 一种电容器铝壳耐高温涂料 - Google Patents

一种电容器铝壳耐高温涂料 Download PDF

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CN106519958A
CN106519958A CN201610945038.5A CN201610945038A CN106519958A CN 106519958 A CN106519958 A CN 106519958A CN 201610945038 A CN201610945038 A CN 201610945038A CN 106519958 A CN106519958 A CN 106519958A
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aluminium shell
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胡忠胜
华玲萍
吴良军
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Anhui Feida Electrical Technology Co Ltd
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Abstract

发明公开了一种电容器铝壳耐高温涂料,由以下成分制成,聚酰胺树脂、聚乙烯醇、聚甲基丙烯酸甲酯、硅藻土、酚醛树脂、硅油、硅酸铝、橄榄油、磷酸钠、麦壳灰烬、玉米秸秆提取物。本发明制备的电容器铝壳涂料,在喷涂于电容铝壳表面后,在电容器铝壳上固化效果好,能有效的保护电容器,耐热耐磨性能好,通过玉米秸秆提取物与麦壳灰烬的协同作用,可以有效达到辐射散热功效。

Description

一种电容器铝壳耐高温涂料
技术领域
本发明涉及电容器铝壳涂料技术领域,特别是涉及一种电容器铝壳耐高温涂料。
背景技术
目前电容器铝壳喷涂的涂料普遍使用寿命偏低,长时间使用后涂膜易破裂,粉碎,并且电容器产品在使用途中会产生热能,如果热能无法有效解決或是扩散,电容器会随温度增温提前老化寿命,长期工作下因温度改变,也会造成电子零组件电源不稳定,造成一定的危害。
发明内容
本发明的目的是提供一种电容器铝壳耐高温涂料。
本发明通过以下技术方案实现:
一种电容器铝壳耐高温涂料,按重量份计由以下成分制成,聚酰胺树脂55-60、聚乙烯醇15-20、聚甲基丙烯酸甲酯25-35、硅藻土8-10、酚醛树脂15-18、硅油3-5、硅酸铝1-3、橄榄油3-6、磷酸钠1-4、麦壳灰烬1-4、玉米秸秆提取物0.1-0.3;所述玉米秸秆提取物制备方法为:
①将玉米秸秆粉碎成粉末,将玉米秸秆粉末添加到质量浓度为3.5%的次氯酸钠溶液中,在78℃下浸泡30min,然后调节温度至2℃,保温10min后,过滤,采用清水清洗;
②将①中处理的玉米秸秆粉末添加到质量浓度为5.8%的碳酸钠溶液中,煮至沸腾,继续煎煮20min后过滤,采用75%体积百分比浓度乙醇溶剂,料液比按1: 35,在75℃下回流提取4h,离心得上清液,再经过旋转蒸发浓缩,然后冷冻干燥制得玉米秸秆提取物。
进一步的,所述硅藻土的粒度为35-40nm。
进一步的,所述麦壳灰烬制备方法为:将麦壳先添加到质量浓度为1.8%的次氯酸钠溶液中,在68℃下浸泡1天后,过滤,烘干,然后采用明火烧至灰烬,再均匀捣碎,即可。
进一步的,所述电容器铝壳涂料的使用方法为:
①对电容器铝壳表面采用入质量分数为2.5%碳酸氢钠溶液清洗15min,再放入丙酮中采用超声清洗10s;
②将电容器铝壳在85-90℃的温度进行加热5min,然后缓慢冷却至36-38℃;
③将经过②处理后的电容器铝壳放入浸泡液中浸泡20min,浸泡温度为58-60℃,然后进行烘干;所述浸泡液按重量份计由以下成分制成:钼酸钠0.2、丙烯酸钠1、氯化铝1、季戊四醇4、氯化钾1、余量水;
④对经过③处理的电容器铝壳表面喷涂本发明电容器铝壳涂料,喷涂厚度为80-90μm,然后烘干,即可。
本发明的有益效果是,与现有技术相比:
本发明制备的电容器铝壳涂料,在喷涂于电容铝壳表面后,在电容器铝壳上固化效果好,能有效的保护电容器,耐热耐磨性能好,通过玉米秸秆提取物与麦壳灰烬的协同作用,可以有效达到辐射散热功效,实验数据显示,本发明喷涂于电容铝壳的涂料可以有效的将电容因工作所提升的內部温度有效引导到外壳,并将热转化为红外线辐射波,不仅增强电容的使用寿命,还可以使电容工作电压达到稳定状态。通过硅酸铝和硅藻土的协同作用,极大的提高了涂膜的硬度,配合麦壳灰烬和硅油的作用,能够提高涂膜的致密性,从而能够极大的提高涂膜的抗划伤性。本发明中各成分之间的协同配合作用,能够极大的提高涂膜耐老化的性能,显著的提高了涂膜的使用寿命,能够长时间保护电容器的正常使用。
具体实施方式
实施例1
一种电容器铝壳耐高温涂料,按重量份计由以下成分制成,聚酰胺树脂55、聚乙烯醇15、聚甲基丙烯酸甲酯25、硅藻土8、酚醛树脂15、硅油3、硅酸铝1、橄榄油3、磷酸钠1、麦壳灰烬1、玉米秸秆提取物0.1。
实施例2
一种电容器铝壳耐高温涂料,按重量份计由以下成分制成,聚酰胺树脂60、聚乙烯醇20、聚甲基丙烯酸甲酯35、硅藻土10、酚醛树脂18、硅油5、硅酸铝3、橄榄油6、磷酸钠4、麦壳灰烬4、玉米秸秆提取物0.3。
实施例3
一种电容器铝壳耐高温涂料,按重量份计由以下成分制成,聚酰胺树脂58、聚乙烯醇17、聚甲基丙烯酸甲酯30、硅藻土9、酚醛树脂16、硅油4、硅酸铝2、橄榄油4、磷酸钠3、麦壳灰烬2、玉米秸秆提取物0.2。
电容器铝壳涂料的使用方法为:
①对电容器铝壳表面采用入质量分数为2.5%碳酸氢钠溶液清洗15min,再放入丙酮中采用超声清洗10s;
②将电容器铝壳在85-90℃的温度进行加热5min,然后缓慢冷却至36-38℃;
③将经过②处理后的电容器铝壳放入浸泡液中浸泡20min,浸泡温度为58-60℃,然后进行烘干;所述浸泡液按重量份计由以下成分制成:钼酸钠0.2、丙烯酸钠1、氯化铝1、季戊四醇4、氯化钾1、余量水;
④对经过③处理的电容器铝壳表面喷涂本发明电容器铝壳涂料,喷涂厚度为80-90μm,然后烘干,即可。
通过实验对比涂料使用后的性能:
表1
耐高温(280℃)/h 110℃固化时间/s
实施例1 400 61
实施例2 405 60
实施例3 402 62
对比例1 320 78
对比例2 380 60
其中,对比例1为:不添加本发明实施例2中的玉米秸秆提取物,其它成分不变,使用方法不变;
对比实施例2为:采用普通喷涂的方法喷涂本发明实施例2涂料;
由表1可以看出,本发明制备的电容器铝壳涂料耐高温性能优越,固化时间短,不添加本发明制备的玉米秸秆提取物,涂膜耐高温性降低,固化时间延长,不采用本发明中的涂料使用方法,耐高温性一定程度上降低。

Claims (4)

1.一种电容器铝壳耐高温涂料,其特征在于,按重量份计由以下成分制成,聚酰胺树脂55-60、聚乙烯醇15-20、聚甲基丙烯酸甲酯25-35、硅藻土8-10、酚醛树脂15-18、硅油3-5、硅酸铝1-3、橄榄油3-6、磷酸钠1-4、麦壳灰烬1-4、玉米秸秆提取物0.1-0.3;所述玉米秸秆提取物制备方法为:
①将玉米秸秆粉碎成粉末,将玉米秸秆粉末添加到质量浓度为3.5%的次氯酸钠溶液中,在78℃下浸泡30min,然后调节温度至2℃,保温10min后,过滤,采用清水清洗;
②将①中处理的玉米秸秆粉末添加到质量浓度为5.8%的碳酸钠溶液中,煮至沸腾,继续煎煮20min后过滤,采用75%体积百分比浓度乙醇溶剂,料液比按1: 35,在75℃下回流提取4h,离心得上清液,再经过旋转蒸发浓缩,然后冷冻干燥制得玉米秸秆提取物。
2.根据权利要求1所述的一种电容器铝壳耐高温涂料,其特征在于,所述硅藻土的粒度为35-40nm。
3.根据权利要求1所述的一种电容器铝壳耐高温涂料,其特征在于,所述麦壳灰烬制备方法为:将麦壳先添加到质量浓度为1.8%的次氯酸钠溶液中,在68℃下浸泡1天后,过滤,烘干,然后采用明火烧至灰烬,再均匀捣碎,即可。
4.根据权利要求1所述的一种电容器铝壳耐高温涂料,其特征在于,所述电容器铝壳涂料的使用方法为:
①对电容器铝壳表面采用入质量分数为2.5%碳酸氢钠溶液清洗15min,再放入丙酮中采用超声清洗10s;
②将电容器铝壳在85-90℃的温度进行加热5min,然后缓慢冷却至36-38℃;
③将经过②处理后的电容器铝壳放入浸泡液中浸泡20min,浸泡温度为58-60℃,然后进行烘干;所述浸泡液按重量份计由以下成分制成:钼酸钠0.2、丙烯酸钠1、氯化铝1、季戊四醇4、氯化钾1、余量水;
④对经过③处理的电容器铝壳表面喷涂本发明电容器铝壳涂料,喷涂厚度为80-90μm,然后烘干,即可。
CN201610945038.5A 2016-10-26 2016-10-26 一种电容器铝壳耐高温涂料 Pending CN106519958A (zh)

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Application publication date: 20170322