HID阻燃导热液体灌封胶的技术参数分别是多少?

2025-03-01 17:11:49
推荐回答(2个)
回答(1):

红叶硅胶的HID阻燃导热液体灌封胶是一种低粘度双组分缩合型有机硅灌封胶,可快速室温深层固化。具有优异的粘接性能,适用于电子配件绝缘、防水及固定。通常应用于汽车HID模块灌封保护。


它的主要技术参数如下表:

回答(2):

我发个一般厂家的技术参数 仅供参考

一、产品说明及特点

1.该胶均为双组分有机硅加成体系导热灌封胶,固化过程中不收缩,绝缘性能优异。

2.胶料在常温条件下混合后存放时间较长,但在加热条件下可快速固化,特别利于自动生产线上的使用。

3.耐温性,耐老化性好,固化后在很宽的温度范围(-60~250℃)内保持橡胶弹性。

4.具有较好的阻燃和导热性。

二、基本用途

广泛用于有大功率电子元器件,对散热和耐温要求较高的模块电源和线路板的灌封保护。如汽车HID灯模块电源、汽车点火系统控制模块等。

三、技术参数

固化前

外观

灰色流体

固化后

A组份粘度(cps,25℃)

4000~6000

硬度(邵氏A)

60~65

B组份粘度(cps,25℃)

4000~6000

导热系数[w/(m.k)]

≥0.8

操作性能

混合比例(重量比)A:B

1:1

介电强度(KV/mm)

≥27

混合后粘度(cps,25℃)

5500

介电常数(1.2MHZ)

3.0~3.3

混合后密度(g/ml,25℃)

1.60

线膨胀系数[m/(m.k)]

≤2.2×10-4

可操作时间(min,25℃)

60~120

阻燃等级

UL94-V0

固化时间(h,25℃)

12

固化时间(min,80℃)

30

四、使用说明

1.清洁表面: 用适当的溶剂例如酒精、二甲苯等清洁被粘或被涂覆的基材表面,晾干。

2.施 胶: 分别将A、B组份搅拌均匀,再按配比准确称量两组份放入混合罐内搅拌混合均匀, 将混合好的胶料灌注于需灌封的器件中(一般可不抽真空脱泡,若需得到高导热性,建议真空脱泡后再灌注)。

3.固 化: 室温或加热固化均可。胶的固化速度与固化温度有很大关系,在冬季需很长时间才能固化,建议采用加热方式固化,80℃下固化30分钟,室温条件下一般需24小时左右完全固化。

五、注意事项

1.胶料应密封贮存,搅拌混合过程中要注意刮壁、刮底,保证混合均匀,混合好的胶料需一次性用完。

2.胶料长时间存放后,各组分中的填料会有所沉降,各组份分别搅拌均匀后再混合使用,不影响其性能。

3.胶液接触到含有氮、硫、磷的化合物,水,有机金属盐等物质时可能会发生不固化或固化不完全的现象。使用过程中,请注意避免与以上物质接触。

六、包装存运

40kg/套,35℃以下的阴凉干燥环境中密闭贮存,保质期一年,按一般化学品运输。

晕 表格出现乱码了,你留下Q 我邮件给你!

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